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661	Environmental Engineering	ABS-632
COPPER BIOSORPTION USING BEADS BIOSORBENT OF MIXED CULTURE MICROALGAE Tiara Wilan, Rositayanti Hadisoebroto*, Astri Rinanti Environmental Engineering Department, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia Abstract Sorption process of copper metal (Cu2+) from artificial electroplating wastes using a biotechnology approach was studied using beads biosorbent of mixed culture microalgae. The research of beads biosorbent consists of microalgae Chlorella vulgaris, Chlorococcum sp., and Scenedesmus obliquus conducted in batch culture to determine the highest efficiency of Cu2+ sorption to reduce Cu2+ pollution to the environment. Biosorbent was made into beads by mixing 0,5 gr (dead biomass)/gr (Na-alginate polymer). The beads biosorbent were contacted with Cu2+ in the pH range 4-6 and contact time 0-180 minutes. The highest sorption efficiency of Cu2+ was 85% obtained at pH 4, 120 minutes contact time, in temperature of 25 ºC, and with an initial waste concentration of 25 mg/L. The sorption process of this research follows Langmuir Isotherm with R2 value of 0,997. It was proven that beads biosorbent of mixed culture microalgae can be used as an environmental-friendly solution to control Cu2+ pollution in the environment. Keywords: Biosorption, Copper metal, Chlorococcum sp., Microalgae Beads, Electroplating Wastewater PermaLink | Plain Format | Corresponding Author (Rositayanti Hadisoebroto)

662	Environmental Engineering	ABS-641
The Alternative Solutions of Bagasse To Improve Indonesian Oil Production in Low Salinity Aqlyna Fattahanisa (a*), Rini Setiati (a), Sugiatmo Kasmungin (a), Arinda Ristawati (a) a) Petroleum Engineering Department, Universitas Trisakti, Jl. Kiyai Tapa No 1, Grogol, Jakarta Barat, Indonesia *aqlyna[at]trisakti.ac.id Abstract Indonesia is one of the largest sugar cane producing countries in the world. At present, the use of bagasse is only as compost, electricity generation and etc. In the oil industry, bagasse can also be used as a base material in making surfactants that function as fluid reservoir oil injection to improve oil recovery factors, so it is good to develop a type of plant-based local surfactant with a lot of raw materials in Indonesia. The purpose of this study was to see that bagasse can increase the oil recovery factor at low salinity. The methodology used is a laboratory study using concentrations of 1%; 1.5%; 2%; 2.5% and 3% NaLS and salinities of 4000 ppm, 5000 ppm, and 15000 ppm NaCl. The Surfactant was first conducted a compatibility test, then core flooding was carried out to obtain the recovery factor value. The results obtained were surfactants with variations of 1.5% 4000 ppm; 1.0% 15000 ppm; and 1.5% 15000 ppm which passes the compatibility test with the recovery factor value sequentially is 3.24%; 3.62%; and 5.34%. This shows that NaLS surfactant can increase the oil recovery factor at low salinity by 5.34% by optimizing 1.5% NaLS 15000 ppm concentration. Keywords: Bagasse, NaLS Surfactant, Enhanced Oil Recovery, Oil Recovery, Low Salinity PermaLink | Plain Format | Corresponding Author (Aqlyna Fattahanisa)

663	Environmental Engineering	ABS-917
COMMUNITY BASED LANDSLIDE DISASTER MITIGATION MODEL IN KARANGKOBAR VILLAGE, BANJARNEGARA REGENCY, CENTRAL JAVA. Dra. Asma Irma Setianingsih,M.Si,(a*) Dr. Muzani Jalaludin, Dipl.Eng, M.Si (b), Afa Nurmaya Ashari (c). Departement of Geography Education, Faculty of Social Sciences Universitas Negeri Jakarta Abstract This study aims to analyze the participation of the community in lanslide risk reduction and to develop community-based landslide mitigation model in Karangkobar Village, Banjarnegara, Central Java. The method in this study is quantitative with a survey approach. The population in this study were 721 heads of households, and 88 people were taken by simple random sampling. The analysis technique is descriptive using frequency tables. The disaster mitigation model uses participation indicators and landslide mitigation standards from the National Disaster Management Agency. The results showed that as many as 87% of the people participated in mitigation planning, 85% of the community participated in the implementation and 93% of the community participated in the evaluation. Based on the measurement of the three indicators above, it can be concluded that the level of community participation in reducing the risk of landslides is quite high. The mitigation model carried out by the community were to form a disaster management working group which later developed into a community that was aware of the disaster and finally designated as a disaster response village. These group activities include installing landslides or warning signs, planting trees on slopes, caring for and monitoring landslides instruments and working with the Disaster Management Agency. Keywords: Disaster, Community Participation, Landslides PermaLink | Plain Format | Corresponding Author (Asma Irma Setianingsih)

664	Environmental Engineering	ABS-407
Analysis of Pollutant Load Due to Greywater from Riverbanks Settlement on Ciliwung River Segment 2 Rhedeva Shalimar Putri, Rositayanti Hadisoebroto, Diana Irvindiaty Hendrawan* Environmental Engineering Department, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia *Corresponding author: dianahendrawan[at]trisakti.ac.id Abstract Greywater from domestic activities on the riverbanks settlement in Indonesia usually channeled directly to the drainage or to the river. It will be decrease the water quality. The aims of the research are to analyze the pollutant load due to greywater from settlement in banks of Ciliwung River segment 2 and responses of society sanitation habits. The research was conducted at 6 villages are Babakan Pasar, Sukasari, Baranangsiang, Cibuluh, Kedung Badak, and Sempur. Water samples were taken from the drainage channel in the morning and evening, which are considered to represent the peak hours of greywater. Sampling was conducted in May, June and July 2018. Pollutant load based on BOD level in the drainage channel ranges from 4,903.19-132,804.33 kg/day. This condition shows the high tendency of pollution due to greywater domestic activities and absence of greywater treatment in residential areas. Almost 50% of the community understand the importance of the need for wastewater management. Community awarness for sanitation habits such as environment community service, maintenance and handling waste in drainage, periodic septic tank desludging, and greywater disposal to drainage are needed. The conclusion is that greywater treatment in riverbanks settlement is really needed to be applied. Keywords: Domestic activities; greywater; riverbank settlement; sanitation habits; pollutant load PermaLink | Plain Format | Corresponding Author (Diana Irvindiaty Hendrawan)

665	Environmental Engineering	ABS-408
Pollutant Load Capacity of Situ Parigi, Banten Province Athiya Zharifa, Melati Ferianita Fachrul, Diana Irvindiaty Hendrawan* Department of Environmental Engineering, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia *Corresponding author: dianahendrawan[at]trisakti.ac.id Abstract Situ Parigi is located in Parigi Lama Village, Pondok Aren District, South Tangerang City. Based on the water quality measurements of Situ Parigi, BOD parameter has the highest concentration. This indicates that the type of waste that enters this water body is dominated by organic waste produced from domestic activities around it. The purpose of this study is to determine the pollutant load capacity of BOD in Situ Parigi. Pollutant load capacity is calculated using formulas in Minister of Environment Regulation No. 28 of 2009 concerning Capacity of Lake Water Pollution and/or Reservoir Load. Situ Parigi has an area of 4 Ha, an average depth of 0.98 m, a debit of 0.023 m3/sec and a hydraulic residence time of 18.25 days. Based on the calculations results, the pollutant load capacity of Situ Parigi is 3,169.81 kg/year but must accommodate a load of 20,553.15 kg/year. These results show that the pollution that occurs in Situ Parigi has exceeded its capacity. Control strategies such as dredging work and the construction of communal wastewater treatment plants could be carried out in an effort to reduce the occurring pollution levels. Keywords: Organic wastewater; water pollution; pollution load capacity; control strategies PermaLink | Plain Format | Corresponding Author (Diana Irvindiaty Hendrawan)

666	Environmental Engineering	ABS-920
PRO ECOLOGY BEHAVIOR IN TERMS OF INSTRUCTIONAL LEADERSHIP AND LOCUS OF CONTROL Study of the Korelasional Madrasah Aliyah at Negeri 6 East Jakarta Nadiroh (a), Mukhlisah Arif Hanubun (b), Budiaman (c) Komarudin (d), Siti Dewi Maharani (e) a) Professor at State University of Jakarta, Indonesia b) Magister Student, State University of Jakarta, Indonesia, c) State University of Jakarta, Indonesia d) State University of Jakarta, Indonesia e) State University of Jakarta, Indonesia Abstract Penelitian dilakukan untuk menjelaskan hubungan antara Kepemimpinan Instruksional dan Locus Of Control terhadap Pro Ecology Behavior Siswa. Metode yang digunakan adalah metode survey. Adapun pengambilan sampel dilakukan dengan cara multistage random sampling hingga terpilih 100 siswa MAN 6 Jakarta Timur orang sebagai sampel. Uji regresi dan analisis korelasional digunakan untuk memverivikasi hubungan antara variabel. Data penelitian diperoleh dari hasil pengukuran yang menunjukkan bahwa terdapat hubungan positif antara Kepemimpinan Instruksional dan Locus Of Control terhadap Pro Ecology Behavior Siswa, baik sendiri maupun bersama, baik dikontrol maupun tidak. Kepemimpinan guru atau yang diistilahkan kepemimpinan instruksional adalah salah satu faktor situasional dalam teori perilaku, sehingga penelitian ini mengkorelasikan faktor internal yaitu Locus Of Control dengan faktor situasional yaitu Kepemimpinan Instruksional dan pengaruhnya terhadap Pro Ecology Behavior Siswa. Semakin tinggi Kepemimpinan Instruksional dan Locus Of Control, maka semakin tinggi pula Pro Ecology Behavior Siswa. Keywords: locus of control, kepemimpinan instruksional, ecology behavior PermaLink | Plain Format | Corresponding Author (Mukhlisah Hanubun)

667	Environmental Engineering	ABS-411
The Study on the Self Purification of Situ Gede, Tangerang City, Banten Province Based on BOD Parameter Hana Purwati, Melati Ferianita Fachrul, Diana Irvindiaty Hendrawan* Department of Environmental Engineering, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia *Corresponding author: dianahendrawan[at]trisakti.ac.id Abstract Situ Gede is a natural water body located in Kelapa Indah, Tangerang District, Tangerang City, which has an area of 5.07 hectares. The decrease in water quality is characterized by the number of pollutants such as pollutants BOD (Biochemical Oxygen Demand), which are closely related to human activities such as the disposal by organic waste from domestic activities around it. The purpose of this study is to analyze the self purification of water body in degrading of organic matter. The average of residence time of Situ Gede is 3.05 hours and a mixed concentration is 16.12 mg/l. The calculation results, the degradation rate at Situ Gede is 0.19/day. These results are stated as the composition of BOD in the Situ Gede situation not degraded perfectly. Alternative strategies for water pollution control can be done by entering oxygen in the transition will help the growth of aerobic microorganisms for the process of reforming organic matter. Keywords: Organic matter; residence time; degradation rate; self purification PermaLink | Plain Format | Corresponding Author (Diana Irvindiaty Hendrawan)

668	Environmental Engineering	ABS-677
Study of Bioremidiation Techniques as a Process for Making Organic Cosmetics Plants Fertilizers Sitti Nursetiawati* State the University of Jakarta, Faculty of Engineering, Cosmetology Education, East Jakarta, Rawamangun 13220 *sitti-nursetiawati[at]unj.ac.id Abstract Bio-remediation is one technique to reduce environmental pollution and renew soil with the help of microorganisms and plants. The process carried out includes detoxification of toxic chemicals by cleaning the environment naturally and economically. This study aims to identify waste recycling, modification of ecology-based farming systems, and test traditional plants as a source of bioremediation. Then, bacteria and bioremediation results will be used as liquid fertilizer. Liquid fertilizers are processed through bioremediation techniques, then reused as nutrients for organic cosmetics plants. The research method is carried out qualitatively and its application is in a polluted environment. The research findings state that there is a positive impact on reducing environmental pollution, especially in reducing the volume of waste and the smell of garbage. Meanwhile, the success of bio-remediation in liquid fertilizer depends on the Hydrogen (H2) cycle. In addition to H2, there are carbon (C), sulfur (S), and nitrogen (N) during the bio-remediation process which encourages the bio-remediation of liquid organic fertilizer to be able to fertilize the plant source of organic cosmetics. Thus, cosmetics can be said to be organic as a whole. Keywords: Bioremidiation technique, liquid fertilizer, organic cosmetics PermaLink | Plain Format | Corresponding Author (Sitti Nursetiawati)

669	Environmental Engineering	ABS-933
Compost of Oil Palm Empty Fruit Bunches with Coastal Mud and Rice Husk Biochar to Improve The Acid Sulphate Soil Fertility Sri Andayani(a), Edy Syafril Hayat(a), Rita Hayati(b), Hery Medianto Kurniawan(a), Endang Noerhartati(c*), Agnes Tutik Purwani Irianti(a) a)Departement of Agrotecnology, Faculty of Agriculture, Universitas Panca Bhakti Pontianak Jl Kom Yos Sudarso, Pontianak, Indonesia sriandayani[at]upb.ac.id+edysyafrilhayat[at]upb.ac.id+herymkurniawan[at]upb.ac.id+agnestutik[at]upb.ac.id b)Departement of Soil Science, Faculty of Agriculture, Universitas Tanjungpura Pontianak rita.hayati[at]faperta.untan.ac.id c*)Departement of Agroindustrial Technology, Faculty of , Engineering, Universitas Wijaya Kusuma Surabaya Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia *)endangnoer_uwks[at]yahoo.com+endang_noer[at]uwks.ac.id c)Postgraduate Student, Department of Education Management, Universitas Negeri Surabaya, Indonesia Jl Kampus Ketintang, Surabaya, Indonesia endang.18006[at]mhs.unesa.ac.id Abstract The research purposes : (1) Producing enriched compost of oil palm Empty Fruit Bunches (EFB) with coastal mud and rice husk biochar that is suitable for application to acid sulphate soils, (2) Getting the best dosage to increase acid sulphate soil fertility. The method used: complete random design (CRD) factorial pattern, the first factor composition of enriched oil palm EFB compost, second factor : doses of compost enriched. Data analysis using analysis of varian (ANOVA), significant differences continued with Honestly Signicant Difference Test (HSD). The variables observed were: soil pH H2O, exch-Al, Base Saturation, total-N, Bray-P and exch-K. The results showed: compost oil palm EFB treatment significantly affected the exch-K, whilst did not significantly affect the pH H2O, total-N, Bray-P, exch-Al and base saturation. Although enriched compost treatment did not significantly, and the finding is the treatment enriched compost trend to increased pH H2O, total-N and Bray-P. Keywords: Compost; Oil Palm Empty Fruit Bunch; Rice Husk; Coastal Mud; Sulfuric acid soil PermaLink | Plain Format | Corresponding Author (Sri Andayani)

670	Environmental Engineering	ABS-934
NEUTRALIZATION, COAGULATION AND FILTRATION PROCESS IN PEAT WATER Arif Parabi(a) , Ranty Christiana(a), Dina Octaviani(b), M.Zalviwan(b), Endang Noerhartati(c*) a) Department Civil Engineering, Faculty Of Engineering at Universitas Panca Bhakti Pontianak Jl Kom Yos Sudarso, Pontianak, Indonesia a_parabi[at]upb.ac.id+rantychristiana[at]upb.ac.id b) Department Management, Faculty Of Economy at Universitas Panca Bhakti Pontianak, Indonesia Jl Kom Yos Sudarso, Pontianak, Indonesia dina[at]upb.ac.id+zalviwan[at]upb.ac.id c*) Departement of Agroindustrial Technology, Faculty of , Engineering, Universitas Wijaya Kusuma Surabaya Jl. Dukuh Kupang XXV/ 54 Surabaya, Indonesia * endang.18006[at]mhs.unesa.ac.id+endang_noer[at]uwks.ac.id c) Postgraduate Student, Department of Education Management, Universitas Negeri Surabaya, Indonesia Jl Kampus Ketintang, Surabaya, Indonesia endang.18006[at]mhs.unesa.ac.id Abstract The research purpose is to find out about neutralization, coagulation and filtration processes in peat water. Water is an environmental component that has a considerable role and the requirements in terms of quality and quantity. The presence of water in peatland areas is less profitable, because peat water is surface water from peat soil with striking features because it is brownish red in color, contains high organic matter, tastes sour, pH 2-5 and has a low hardness level. This research method uses experimental design and the variables are the processes of neutralization, coagulation, and filtration of peat water. Descriptive statistical analysis is an analysis carried out to assess the characteristics of a data. The results of the research were from the initial test obtained pH = 4.32. There are some changes from all parameters starting from dark black water color (1088 PtCo) to 179 PtCo, high turbidity (13.2 NTU to 6.55 NTU, high iron content (1.68 mg / l) to 0.26 mg / l, high chromium (0.093) mg / l to 0.023 mg / l), low acidity (pH) (4.32) to pH 5.57 and high sulphate (744 mg / l) to 24 mg / l. Keywords: Neutralization; Coagulation; Filtration; Peat Water PermaLink | Plain Format | Corresponding Author (Arif Parabi)

671	Environmental Engineering	ABS-681
THE EFFECT OF TEMPERATUR AND PH ON LOW DENSITY POLYETHYLENE (LDPE) PLASTICS REMOVAL BY Thiobacillus sp. AND Clostridium sp. BACTERIA Annisa Nur Islami, T. Tazkiaturrizki, *)Astri Rinanti Universitas Trisakti Abstract LDPE plastics are polymers that are widely used because of their waterproof, flexible and affordable characteristics. This study aims to degrade LDPE plastic with temperature and pH variations using biotechnology by a mixed cultures of Thiobacillus sp. and Clostridium sp. bacteria. This mixed bacterial cultures are grown in the growth media of Stone Mineral Salt Solution (SMSs) with a batch system. Analysis of Gravimetric method is used to find out the difference in weight of LDPE plastics and Fourier Transform Red Infrared Spectroscopy (FTIR) is used to determine the change of functional groups. To obtain optimum conditions that produce the highest degradation, temperature variations (oC) 25, 30, 35 and pH 5, 7, 9 were done. Optimum removal of LDPE occurs at 30oC with acidity (pH) 7. It shows that mixed cultures of Thiobacillus sp. and Clostridium sp. bacteria has the ability to degrade LDPE plastics with a percent removal reached 10-15%. Keywords: Biodegradation, Thiobacillus sp., Clostridium sp., Low Density Polyethylene (LDPE), Stone Mineral Salt Solution (SMSs). PermaLink | Plain Format | Corresponding Author (Astri Rinanti)

672	Environmental Engineering	ABS-937
Innovation Potencies to Conserve the Environment Quality in the Young Generation Yonik Meilawati Yustiani(*) Department of Environmental Engineering, Universitas Pasundan Jl. Dr. Setiabudhi 193 Bandung 40153, Indonesia (*) e-mail: yonik[at]unpas.ac.id Abstract Environmental damage that has occurred in Indonesia has severely disrupted public health. Many efforts have been made to improve the environment, both technically and non-technically. But these efforts did not show significant positive results. This condition shows that there needs to be a breakthrough in the form of innovations, especially in terms of technology to prevent and control of environmental damage. This study aims to investigate the potential for innovation in the field of environment that was generated by Indonesias young generation. In addition, this research also portrays the innovation ideas that want to be realized as well as obstacles in realizing them. The method used in this study was the distribution of questionnaires to 78 respondents randomly and a review of secondary data. The results of the study show that innovations to improve environmental conditions are not solely by making pollution control devices, but also innovations related to the use of environmentally friendly energy, organic food, waste recycling, saving natural resources, and innovations that can change the behavior of people as polluter. The results of the questionnaire dissemination also showed that only 50% of respondents felt the support of the Indonesian Government towards innovation development programs. The biggest obstacle for respondents in realizing innovation is limitation in funding and ability to start invention management. Therefore, the most needed activity is training on how to develop ideas into innovations and potential funding that can realize these innovations. The young generation of Indonesia represented by the respondents in this study stated that copyright to an innovation outcome is valuable. As many as 76% of respondents interested in applying license for their innovations in the form of patents or copyrights. Keywords: Environmental Concervation; Innovation; Young Generation PermaLink | Plain Format | Corresponding Author (Yonik Meilawati Yustiani)

673	Environmental Engineering	ABS-683
The Effect of Temperature and Concentration of Aspergillus fumigatus on Chlorpyrifos Removal Candra Dwi Anggreini, T. Tazkiaturrizki, *)Astri Rinanti Universitas Trisakti Abstract Chlorpyrifos is an organophosphate insecticide which has molecular formula C9H11Cl3NO3PS and toxic. Bioremediation is one of environmental friendly method to remove chlorpyrifos as a contaminant because of the microbial enzymatic activity. The aim of this study is to remove chlorpyrifos with temperature and concentration of Aspergillus fumigatus variations. Aspergillus fumigatus fungi acts as bioremedian with chlorpyrifos degradation activity in the temperature range 25-35oC and concentration of A. fumigatus 0.5-1.5%. By using Gas-Chromatography Mass Spectrometer (GC-MS), the optimum chlorpyrifos degradation was achieved at 25oC with 1% concentration of A. fumigatus for 5 days in potato dextrose broth (PDB) liquid media. It shows that A. fumigatus has the ability to remove chlorpyrifos with the efficiency of chlorpyrifos removal reached 85.7% from the initial concentration of chlorpyrifos at 100 ppm. Keywords: bioremediation, insecticide, chlorpyrifos, Aspergillus fumigatus, potato dextrose broth (PDB) PermaLink | Plain Format | Corresponding Author (Astri Rinanti)

674	Environmental Engineering	ABS-684
UTILIZATION OF STYROFOAM WASTE AS A LOST CIRCULATION MATERIALS IN DRILLING MUD Fadliah (a*), Hafidz Manan (a), Abdul Hamid (a) a) Petroleum Engineering Department, Faculty of Earth Technology and Energy, Universitas Trisakti Jalan Kyai Tapa No.1 Grogol, Jakarta Barat 11440, Indonesia *fadliah[at]trisakti.ac.id Abstract Styrofoam waste was used as a lost circulation material to prevent sudden and simultaneous drilling fluid losses. In this study variations of styrofoam amount and temperature were carried out to see the effect of mass and temperature on physical and rheological properties of drilling mud. Measurement of mud properties using Viscosimeter (Fann VG Meter) with rotor rotation speed of 300 RPM and 600 RPM. The results of the study were then compared with the drilling mud standard. The values of viscosity, plastic viscosity, yield point, gel strength and mud cake increased when the amount of styrofoam added to the mud increased, after the mud was heated to 243°F there was a decrease in the physical and rheological properties. Water loss value will increase along with the addition of LCM substances into the composition and temperature raised in the range of 0.6 mm -1.7 mm. pH level decrease but with a mixture of pH control substances, the pH of drilling mud maintained in alkaline conditions which ranges from 9.5-11.5. The combination of mud that best fits with the standard was addition with 1 grams of Styrofoam and heated in 243oF. Keywords: Styrofoam; Lost Circulation Materials; Drilling Mud; Physical; Rheological PermaLink | Plain Format | Corresponding Author (Fadliah Fadliah)

675	Environmental Engineering	ABS-689
Environmental Engineering for Social Resilience and Tourism in Plajan Village, Jepara, Central Java Province Samadi Samadi*, Komarudin Komarudin, Ucu Cahyana, R Sihadi Darmo Dihardjo, Suhardjo Suhardjo Universitas Negeri Jakarta *samadi[at]unj.ac.id Abstract The study aims to get a suitable model to carry out environmental engineering primarily in the aspects of social security and tourism. The study was conducted in May-December 2018 in Plajan Village, Jepara, Central Java. This research applies the Research and Development method. The results showed that a suitable model for carrying out environmental engineering in the village of Plajan, Jepara, Central Java Province mainly in the aspects of social security and tourism is by involving stakeholders in the village, with a membership consisting of elements of society, academics, community caring for tourism doing main activities; this power is given a jargon Community forums that work together are synergistically coordinative. Keywords: Environmental Engineering, Social Resilience, Tourism Resilience, Plajan Village, Central Java. PermaLink | Plain Format | Corresponding Author (Samadi Samadi)

676	Environmental Engineering	ABS-690
Efficiency of Sub-Surface Flow constructed wetlands system by using Vetiveria zizanioides to reduce BOD concentration from domestic wastewater Dzaki Hamzah Wasita (a), Rositayanti Hadisoebroto (a), Melati Ferianita Fachrul (a*) Department of Environmental Engineering, Universitas Trisakti, Jakarta, Indonesia Abstract Constructed wetland is engineered, man-made ecosystems is one of the wastewater treatment systems to reduce water pollution by using plants. The purpose of this study to know the efficiency of Sub-Surface Flow constructed wetland with Vetiveria zizanioides in domestic wastewater treatment and to reveal the effect of aeration and detention time to reducing BOD concentrations in domestic wastewater. The research has been conducted in constructed wetland located in Srengseng Sawah Village of continue aerated reactor and without aeration as control reactor. Detention time (days) 2 and 3 was setup, then sample was taken for BOD concentration. The results indicated that constructed wetland with aeration and detention time 4 days had a higher performance to remove BOD up to 90% than without aeration and less than 4 days process. This results fulfill the requirement of the quality standards of the Decree of DKI Jakarta Governor No. 122 of 2005 and Decree of the Minister of Environment No. 112 of 2003 Keywords: Constructed Wetland, Domestic Wastewater, BOD, Vetiveria zizanioides PermaLink | Plain Format | Corresponding Author (Melati Ferianita FACHRUL)

677	Environmental Engineering	ABS-692
Environmental Engineering for Safe Snorkeling Paths on Tidung Island, Kepulauan Seribu DKI Jakarta Samadi Samadi(a*), Ucu Cahyana(a), Vrita Tri Ayuni(b), Risky Nuri Amelia(b), Fauzi Ramadhoan Arachman(a) a) Universitas Negeri Jakarta *samadi[at]unj.ac.id b) Universitas Khairun, Ternate Maluku Utara Abstract This study aims to map safe snorkeling routes on Tidung Island based on a combination of transect techniques and social reviews. The study was conducted in April-October 2018 in Tidung Island Kepulauan Seribu DKI Jakarta. This study applies a participatory method with regional sampling. The results showed that an observations of the safe area for snorkeling of coral reefs at points: (1) 5,7999,200,0003 ° LS and 106,4965,900,000,000 ° East; (2) 5,79825999999 ° LS and 106,50914000000 ° East; and Small Tidung Island at point (3) 5,80177854296 ° LS and 106,53036947600 ° East. Keywords: Environmental Engineering, Safe Snorkeling Paths, Tidung Island, Kepulauan Seribu DKI Jakarta. PermaLink | Plain Format | Corresponding Author (Samadi Samadi)

678	Environmental Engineering	ABS-181
Total nitrogen in rice paddy field independently predicted from soil carbon using near infrared reflectance spectroscopy (NIRS) Bambang Hari Kusumo, Sukartono, Bustan University of Mataram Abstract Nitrogen (N) is a vital macro nutrient for plant growth. The adequate amount of this nutrient in rice paddy field is one of the key factors for generating optimum plant production. However, measuring soil N using conventional analysis takes time and expensive. Most of previous researches reported that near infrared spectroscopy (NIRS), which is rapid and inexpensive method, is able to successfully predict soil N due to its high correlation with soil carbon (C). The aim of this research is to test the ability of NIR technology to predict soil N content which is independently predicted from soil C of rice paddy field. Soil samples in 147 locations, including the coordinates, were collected from rice paddy field of Lombok Island, Indonesia. Parts of the samples were analysed in a laboratory using conventional analysis for total N and organic C, and other parts were scanned using near infrared spectroscopy (NIRS) for spectral data collection. A Partial Least Square Regression (PLSR) calibration model was developed using laboratory-analysed soil N (and C) data and soil spectral data. As the soil N and soil C have a poor correlation, but both can be predicted well using NIR technology, this means that the soil N was independently predicted from soil C using NIR technology. This shows that the NIR technology can be rapidly used to measure both soil total N and organic C, although both of them have low correlation. Keywords: soil, total nitrogen, organic carbon, near infrared, spectroscopy PermaLink | Plain Format | Corresponding Author (Bambang Hari Kusumo)

679	Environmental Engineering	ABS-696
Environmental Engineering for Social Adaptation of Tourism Development on Tidung Island, Thousand Islands DKI Jakarta R Sihadi Darmo Dihardjo, Samadi Samadi*, Eko Tri Rahardjo, Komarudin Komarudin Universitas Negeri Jakarta *samadi[at]unj.ac.id Abstract The research objective was to develop environmental aspects for social adaptation to tourism development on Tidung Island, Thousand Islands, DKI Jakarta. The study was conducted in May-October 2018 in Tidung Island Kepulauan Seribu DKI Jakarta. This study applies a participatory method with purpossive sampling. The results showed that : (1) Potential in the Tidung Island area that can be developed as a tourist attraction can be diverse, and (2) There are obstacles to development efforts such as the lack of intensive development of tourism conscious groups, low tourist visits, limited development budgets, low awareness of local government, and still low quality of human resources. Keywords: Environmental Engineering, Social Adaptation, Tourism Development, Tidung Island, Kepulauan Seribu DKI Jakarta. PermaLink | Plain Format | Corresponding Author (Samadi Samadi)

680	Environmental Engineering	ABS-964
WATER CONSERVATION MODEL IN AYUNG RIVER ESTUARY WITH ECOTOURISM BASED I Gusti Agung Putu Eryani1, Made Widya Jayantari2 Universitas Warmadewa Abstract Abstract The Ayung river basin is the largest watershed in the Bali-Penida River Region with an area of 306,149 km2 with a river length of 71,791 km. This watershed through six districts/cities. Population growth and the demands of a more viable livelihood have encouraged people to continue to strive to meet all their needs and the development of tourism in Bali which is growing rapidly, but behind that there will be negative impacts caused mainly on the river water environment and river estuary. Industrial waste and household waste transported in river waters from year to year continue to increase. For this reason, it is necessary to evaluate the environmental conditions of river estuaries and environmental arrangements to be able to support water needs and tourism activities. The aim of this research is to make a model of conservation of water resources at the River Ayung estuary with ecotourism based. The research method uses quantitative and qualitative research methods by involving the researcher in a participatory manner in the subject of the research, ie the users of water and administrators of the traditional village of Kertalangu, Kesiman. For this reason, changes are needed as follows: object changes are subject to research. The research location is the estuary of the Ayung River. Data to be taken are data on changes in land function, climate, population, topography, bathymetry, land use, river boundaries and coastal boundaries, estuary values, orientation of water sources, functions of land around the river estuary. The results of the study of conservation of water resources in the Ayung River Estuary were 15.37 m3/sec, this conservation was carried out by building reservoirs downstream, to meet the water needs of the people in Bali Province designated as raw water, tourism water and 9542 ha of irrigation water. Keywords: Keywords: water conservation, ecotourism, river estuary PermaLink | Plain Format | Corresponding Author (Mirsa Umiyati)

681	Environmental Engineering	ABS-709
The social map of the relationship between exposure to environmental news and curiosity over environmental damage issues with product rejection behavior is not environmentally friendly Muhammad Zid (a) Samadi (b), M Sunu Probo Baskoro (c), Nadiroh (d), Komarudin (e) a) Universitas Negeri Jakarta b) Universitas Negeri Jakarta c)Lembaga Kantor Berita Antara TV d) Universitas Negeri Jakarta e) Universitas Negeri Jakarta Abstract The purpose of this study was to analyze the "social map" related to the relationship between exposure to environmental news and curiosity over issues of environmental damage together with the behavior of rejecting non-environmentally friendly products. The study was conducted in December 2018 - January 2019 in held at the Antara TV News Agency. This study uses survey methods and correlation techniques. The results of this study indicate that: (1) There is a positive relationship between exposure to environmental news and rejection behavior of non-environmentally friendly products. Socially, if the news relating to the positive environment will form a rejection of the increasingly positive community behavior towards products that are not environmentally friendly. (2) There is a positive relationship between Curiosity over Environmental Issues with product rejection behavior not environmentally friendly. Socially, if the publics curiosity about environmental issues is high, the behavior of rejecting non-environmentally friendly products also increases. Keywords: Social map, Environmental news, Environmental damage, Rejection behavior, Environmentally friendly. PermaLink | Plain Format | Corresponding Author (M Sunu Probo Baskoro)

682	Environmental Engineering	ABS-718
Study of Coagulant Effective Dose for Water treatment Plant in Semarang City Izzati Istihara, Lailatus Siami*, Ratnaningsih Environmental Engineering Departement, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia Abstract Water is an important component on earth which community need, especially for clean water consumption. Water treatment plant is one of the solutions as fulfillment of clean water needs that guaranteed quality, quantity and continuity. The aim of this research to determine the effectiveness of coagulants type in water treatment plant planning by using Blorong River as raw water in Semarang City, according to the requirements of water quality of drinking of health minister of Republic Indonesia 492/2010 law. The research using jartest methods by observing the influence of coagulants type consisting of poly aluminium chloride (PAC), alumunium sulfat and chemical mixing alum towards turbidity, pH, iron, zinc, copper, total suspended solid (TSS), and total dissolved solid (TDS) as a parameter observed in two different seasons. The influence of each coagulant also varied with several velocity gradients. It is expected can be specified coagulant type with the ability to decrease those parameters in accordance with drinking water quality requirements which has the most affordable price. Keywords: Jartest, Poly Aluminium Chloride (PAC), Alumunium Sulfat, Chemical Mixing Alum, Velocity Gradient PermaLink | Plain Format | Corresponding Author (lailatus siami)

683	Environmental Engineering	ABS-214
Optimum dosage and application of NPK fertilizer for corn in drylands of Dompu Indonesia Zaenal Arifin, Lolita Endang Susilowati, Bambang Hari Kusumo, Sukartono, Ismail Yasin University of Mataram Abstract Corn farmers on dry land tend to use inorganic fertilizers in excessive amounts to increase corn production without considering the right dosage and the application method. To obtain the right dosage and the better application method, a study has been conducted to investigate two packages of fertilizer doses and placement methods which were tested on dry land of Dompu, Indonesia. Research to test the three types of fertilizers (Nitrogen, Phosphorus and Potassium) in corn was tested in five sub-district locations in Dompu (1 ha in each location), namely Huu, Pajo, Woja, Kempo, and Manggalewa sub-districts. There were two fertilization packages tested in this study; (1) Urea 300 kg/ha and PONSKA 300 kg/ha given 2 times by row placement, and (2) Urea 300 kg/ha and PONSKA 400 kg/ha given 1 time by broadcasting. The results showed that the first package of treatment produced significantly higher dry weight of corn seeds (12.26 tons/ha) compared to the second package (7.98 tons/ha). In addition, the leaves of the corn plant in the first package treatment were still green at the time of harvest which can be a source of animal feed, compared to plants in the second fertilizing package that have dried and are brown in color. Keywords: Corn, fertilizer, NPK, application, dryland, Indonesia PermaLink | Plain Format | Corresponding Author (Zaenal Arifin)

684	Environmental Engineering	ABS-470
REMOVAL OF COPPER METAL (Cu2+) BY MIXED BACTERIA CULTURE Thiobacillus sp. AND Clostridium sp. WITH VARIATIONS OF TEMPERATURE AND CONCENTRATION OF POLLUTANT IN LIQUID MEDIA Anna Kristina Rosa Vernans, Bambang Iswanto, Astri Rinanti Universitas Trisakti Abstract Bioremediation is an effective alternative for removing heavy Cu2+ metals because it is environmentally friendly, a cost-effective technology and permanently detoxifies pollutants. This research was conducted to remove heavy Cu2 + metals using the bioremediation method by utilizing a mixed culture of Thiobacillus sp. and Clostridium sp. as bioremedian. This research was conducted on liquid media which was started in artificial growth media is Stone Mineral Salt solution (SMSs) with the parameters tested in the form of temperature (oC) and Cu2+ heavy metal pollutant concentration. The variabels used consisted of temperature (oC) is 20, 25, 30 and 35, pollutant concentration (ppm) is 25, 50, 75 and 100. Analysis by Atomic Absorption Spectrophotometry (AAS) was carried out to determine the heavy metal content of Cu2+. In addition, the calculation of Cu2 + heavy metal removal efficiency was carried out. In this research, the exponential phase of the growth of mixed culture of bacteria was at a temperature of 30 oC, pH of 7 with a pollutant concentration of 100 ppm. So that, the percent allowance for heavy metals Cu2 + in liquid media until 90%. The efficiency of the use of mixed cultures of the bacteria Thiobacillus sp. and Clostridium sp. as bioremedian in reducing the heavy metal content of Cu2+ in liquid media it can reach the range until 90% with the variation used is a temperature of 30 oC, pH of 7, the pollutant concentration of 100 ppm with the contact time used is 48 hours. Keywords: Bioremediation, Heavy metal Cu2+, Thiobacillus sp., Clostridium sp., Removal, Growth Media PermaLink | Plain Format | Corresponding Author (Astri Rinanti)

685	Environmental Engineering	ABS-474
UTILIZATION OF ENZIMATIC FUNGI ACTIVITIES OF Aspergillus fumigatus IN HYDROLYSIS PROCESS BANANA PEELS IN BIOETHANOL PRODUCING Bunga Faradhani, R. Ratnaningsih, *)Astri Rinanti Universitas Trisakti Abstract Banana peels waste contains lignocellulose which can be converted into starch and then broken down into glucose which will produce bioethanol. This study aims to reduce organic waste and determine the enzymatic activity of Aspergillus fumigatus fungi on banana skin enzymatic hydrolysis in the manufacture of bioethanol. The process starts from delignification followed by the hydrolysis process using a chemical catalyst, H₂SO₄ as a comparison and biological catalyst namely Aspergillus fumigatus. The study showed that the hydrolysis process was successfully carried out using a biological catalyst at a temperature of 30°C and a contact time of 3 days. During the hydrolysis process, the starch content was 3% - 4% using the DNS method. This shows that the use of banana peels waste containing lignocellulose can be used as a source of bioethanol which aims to reduce organic waste. Keywords: Biocatalys, Lignocellulose, Hydrolysis process, Enzymatic activity, Aspergillus fumigatus PermaLink | Plain Format | Corresponding Author (Astri Rinanti)

686	Environmental Engineering	ABS-478
Preliminary Study of The Determination Glucose Levels on Cassava Peels Waste (Manihot utilisima) The Results of The Activity Enzymatic Fungi Aspergillus fumigatus Putra Adyasa Jatnika, Ratnaningsih, *)Astri Rinanti Universitas Trisakti Abstract This research aims to know the waste cassava peels is cleaned for glucose levels that will be used as raw material for fermentation process through bioethanol. Cassava peels contain lignosellulosic which consist of 43% cellulose, 38% hemicellulose, and 19% lignin. This research process is done in two stages, namely the process of pretreatment/delignification and hydrolysis. Delignification is done by making use of Aspergillus fumigatusi in Potato Dextrose Broth medium and performed a cassava peels is cleaned up to size 40 mesh. Pretreatment uses the variation comparison of fungi against raw material of 1:1, 1:3, 1:5 and the contact time of 1, 3, and 5 days. The analysis stage pretreatment using Chesson method. Phase hydrolysis sulfuric acid (H2SO4) 1% and heated at a temperature of 100oC for 2 hours. The analysis phase hydrolysis using DNS method to get sugar levels. In this study, obtained the best levels of lignin after pretreatment is by 8% and the research proves that cassava peels delignification retrieved from enzymatics activity of Aspergillus fumigatus and produces 10% of the total sugar samples is used. Further research needs to be done to increase sugar levels from raw cassava peels. Keywords: Cassava peels, enzimatyc, lignosellulosic, Aspergillus fumigatus, waste. PermaLink | Plain Format | Corresponding Author (Astri Rinanti)

687	Environmental Engineering	ABS-479
DELIGNIFICATION AND DETERMINATION OF SUGAR CONTENT IN WATER HYACINTH (Eichhornia crassipes) AS THE INITIAL PROCESS OF BIOETHANOL PRODUCTION BY Aspergillus fumigatus Karen Lois, Bambang Iswanto, *)Astri Rinanti Universitas Trisakti Abstract Water hyacinth is a water weed that causes an imbalance of the ecosystem so it needs to be processed into a useful product. This research was conducted to convert water hyacinth as lignocellulose-containing biomass by utilizing Aspergillus fumigatus fungi as a biocatalyst. This study began with cultivation of Aspergillus fumigatus in Potato Dextrose Broth media and preparation of water hyacinth to 100 mesh in size. Pretreatment is done by using a variation of the ratio of fungi to biomass at 1: 1, 1: 5, and 1:10 and contact times 1, 3, and 5 days. Determination of lignin as a result of pretreatment was carried out by the Chesson method. The hydrolysis stage takes place after the pretreatment stage to get fermentable sugar. The sugar content is analyzed using the DNS method. In this study, it was found that the best reduction in lignin levels after pretreatment was 38.6% and produced sugar of 12.5 g/L. A fermentation process and further research is needed to determine the potential of water hyacinth as a raw material in the production of bioethanol. Keywords: Eichhornia crassipes, Pretreatment, Hydrolysis, Aspergillus fumigatus PermaLink | Plain Format | Corresponding Author (Astri Rinanti)

688	Environmental Engineering	ABS-991
Environmental Problem Based Learning Model Assisted by Media in Learning to Write Exposition Text Ratmiati (a*), Isah Cahyani (b), Yunus Abidin (c) a) Sekolah Pascasarjana,Universitas Pendidikan Indonesia, Jln. Dr. Setiabudhi no. 229, Bandung, Indonesia. Ratmiati_18[at]upi.edu b) Fakultas penddidikan Bahasa dan Sastra, Universitas Pedidikan Indonesia, Bandung, Indonesia Abstract The purpose of this research is to explore the application of a model of learning based on environmental problems and use media handphone in learning exposition text. The type of study is quantitative research. The method used in this study is the experimental method. The research design in this study was pretty-postest group design. The sample in this study was 8th-grade junior high school students amounting to 33 people. The result showed that the students’ writing skill improved much better with the application of learning model based on environmental problems aided by the presence of handphone technology in supporting the process of observing students in gathering material in writing exposition text. Based on the results of the pretest and posttest, it was done showing an increase in the value of students in writing exposition text about environmental problems observed around them. With this study, learning, it can be concluded that students ability two write exposition text with the existence of environment-based on the learning model is at a level very good. Keywords: Environmental Problem Based Learning; expostion text PermaLink | Plain Format | Corresponding Author (Ratmiati Ratmiati)

689	Environmental Engineering	ABS-750
Effect of soluble soybean Polysaccharide(SSPS) Consentration and SSPS/PVA Ratio on characteristics of biodegradable plastic 1Yusmaniar,1Risqi Arfiansya 1Mutiah Arum 1Devi Indrawati Syafei  1Departement of Chemistry Faculty of Match and Science Universitas Negeri Jakarta, Jln Rawamangun Muka, Jakarta Timur 13220, Indonesia Abstract This study aims to determine the effect of Poly vinyl alcohol (PVA) and Soluble soybean polysaccharides (SSPS), and to characterize it (water resistance and biodegradation test). This research was done by blending (mixing) PVA, SSPS, acetic acid, and maleic anhydride. From the results of infrared spectrum analysis on plastic films showed peaks in the area 1000-1100 cm-1 which indicates the absorption of polysaccharides. This plastic has an optimum water resistance of in the ratio between 1:1 w/w (SSPS:PVA). Optimum biodegradation test results in the ratio of 1:1 w/w (SSPS:PVA). Based on the result of the research, it can be concluded that water resistance and biodegradation reach optimal on composition 1:1 w/w (SSPS:PVA). Keywords: Soluble soybean polysaccharides (SSPS), poly vinyl alcohol (PVA/PVOH), biodegradable plastic PermaLink | Plain Format | Corresponding Author (Yusmaniar Yusmaniar)

690	Environmental Engineering	ABS-499
Biodegradation of Plastic By Mixed Culture of Pseudomonas aeruginosa and Brevibacterium sp. Elsa Dwicania (a), Astri Rinanti (a), Melati Ferianita Fachrul (a*) a) Department of Environmental Engineering, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia *melati[at]trisakti.ac.id Abstract At present, plastic waste is one of the problems that is growing in Indonesia. Plastics take more than 400 years to degrade naturally. One way to degrade plastic waste is by biodegradation. This study aims to degrade Linear Low Density Polyethylene (LLDPE) plastic using mixed culture bacteria Pseudomonas aeruginosa and Brevibacterium sp. The research conducted using plastic cutting 1 x 1 cm in size, as much as 10 gram was put into petri dish containing Nutrient Broth (NB) growth medium. The biodegradation process is carried out for 3 months with the test parameters being temperature (⁰C) and acidity value (pH). Gravimetric and Fourier Transform Infrared (FT-IR) methods were used to determine the weight, morphology, changes in structure and surface of polyethylene. The results showed that mixed bacterial culture has the potential to degrade LLDPE plastic with a percentage reduction of 15% at 35 ⁰C for 5 days. This study proves that mixed culture of bacteria can degrade LLDPE plastic by using it as a carbon source Keywords: Plastics; Biodegradation; Pseudomonas aeruginosa; Brevibacterium sp PermaLink | Plain Format | Corresponding Author (Melati Ferianita FACHRUL)

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