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211	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-109
Isolation and Selection of Fungi that Produces Lignocellulolytic Enzymes Isolated in Sugarcane Bagasse Rahmad(1*) and Nurmiaty(1) 1) Departement of Estate Crops Cultivation, Pangkep State Polytechnic of Agriculture, South Sulawesi, Indonesia Abstract Lignocellulolytic enzymes are produced by fungi that occur in sugarcane bagasse. The aim of this research is to isolate and to identify the fungal isolates that produce lignocellulolytic enzymes in sugarcane bagasse from Takalar Sugar Factory, South Sulawesi. The fungal isolates are isolated, purified, and selected for their ability to produce lignocellulolytic enzymes. Testing of lignocellulolytic enzymes consists of cellulase enzyme testing using PDA (Potato Dextrose Agar) media, Czapeck (difcoTM) enriched with CMC, hemicellulase enzymes enriched with xylan, and clear zone testing with iodine solution and ligninase enzyme testing using MEA Malt Extract Agar (MEA) enriched media, xylan-enriched hemicellulase enzymes, clear zone testing with iodine solution, and ligninase enzyme testing using Malt Extract Agar (MEA) enriched media with tannic acid. As many as 23 fungal isolates are successfully isolated, and most of the fungi obtained consists of 10 fungal isolates Aspergillus sp., 4 isolates of Penicillium sp. and 5 isolates of Trichoderma sp. There are 17 fungal isolates producing cellulase enzyme, 19 isolates producing hemicellulase enzyme, and 13 isolates producing ligninase enzyme. Fungal isolate of Amblyosporium sp. produces the highest cellulase and ligninase enzymes, and fungal isolate of Aspergillus sp8 produces the highest hemicellulase enzyme. The results of this study show that there is a fungal isolate derived from sugarcane bagasse that has a high ability to produce lignocellulolytic enzymes. Keywords: sugarcane bagasse, selection, fungi, lignocellulolytic enzymes Share Link | Plain Format | Corresponding Author (Rahmad Rahmad)

212	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-113
Recycling Paper Industry : Analysis of Raw Material Consumption in Indonesia Mungki Septian Romas, Sri Martini Industrial Engineering Department, Master Program,Telkom University, Bandung, Indonesia Abstract Recycling industry of paper is an industry with good market potential. This industrial raw material is used recycled paper such as old corrugated container (OCC), mixed waste paper, etc. In Indonesia commonly, the industry got the raw material needs by importing. The goverment provides regulation to ensure the sustainability of the industrial activity both the process of importing recycled paper and internal regulation to increase local raw materials. The objectives of the research were to study the chosen raw material for recycling paper industry, and to analyse position strategy of consumption raw material for recycling paper industry in Indonesia. This research used a qualitative description method by AHP and SWOT analysis. The data were obtained from interview, study literature, and distributed quistionnaire to paper industry, paper researcher, and relevant agencies. Based on AHP, strongth criteria to choosen raw material is regulation and availability of raw material with value 0,323 and 0,243, and alternative choosen is recycled paper raw material import. The result SWOT analysis, recycled paper industry in Indonesia, have IFAS 0,03 and EFAS -0,02. Thats showed position in quadran II, diversivication the raw material from import to local (recycled paper or non wood alternative). The goverment and relevant agencies to coorporate through the suport and regulation of raw material for recycling paper industry. Keywords: Recycling industry, recycled paper, AHP, SWOT analysis Share Link | Plain Format | Corresponding Author (Mungki Septian Romas)

213	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-128
SILICA EXTRACTED FROM RICE HUSK ASH AS SOLID BASE CATALYST IN THE TRANSESTERIFICATION PROCESS FOR BIODIESEL PRODUCTION Nurdi Setyawan, Imia Ribka Banurea, Sri Yuliani, and Heni Herawati Indonesian Center for Agricultural Postharvest Research and Development Jl. Tentara Pelajar No.12, Kampus Penelitian Pertanian Cimanggu, Bogor, West Java, Indonesia Abstract Rice husk is a by-product of rice milling has not been optimally utilized yet in Indonesia. The waste reaches 20 percent of total unhulled rice. Rice husk consists of silica able to substitute natural silica for many purposes. The study was conducted to determine the effect of impregnation and calcination temperature on silica from rice husk ash as a solid base catalyst in the transesterification process for biodiesel production. Silica treated with impregnation of KOH 1N and calcination temperature of 200, 300, 400, and 500C. Silica was investigated and characterized by using SEM, XRD, and BET. The calcination of silica in temperature 400C resulted in the highest yield of 88.51 percent. Increasing the calcination temperature can improve the amorphous of the obtained silica. Keywords: Silica, rice husk ash, catalyst, transesterification, biodiesel Share Link | Plain Format | Corresponding Author (Nurdi Setyawan)

214	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-130
Synthesis of Silica from Rice Husk by Sol-Gel Method Nurdi Setyawan1, Hoerudin1, and Sri Yuliani1 1Indonesian Center for Agricultural Postharvest Research and Development Jl. Tentara Pelajar No.12, Kampus Penelitian Pertanian Cimanggu, Bogor, West Java, Indonesia Email: setyawan.nurdi[at]gmail.com Abstract Rice husk is an agricultural by-product abundantly available and not optimally utilized yet in Indonesia. The waste contains silica able to substitute natural silica for various purposes. Extraction of silica from rice husk (RH) has been done using sol-gel method without involving high energy. Extraction was done with KOH at concentrations of 7, 10 and 13 percent for 90, 120, and 150 min. These processes resulted in silica (SiO2) 81.99 - 95.34 percent and yield ranged from 7.60 - 9.75 percent. The minimum concentration of KOH could produce the maximum yield of silica. Characterization by XRD showed that the silica has the same pattern with that of commercial product and it was categorized as amorphous silica indicated with the broad peaks at 2 theta = 22 degrees. An amorphous silica with purity above 95 percent was produced from rice husk by KOH 7 percent at 120 min. The process condition resulted in high reactivity and a high BET surface area. Washing process needs to be intensified to improve the purity of silica. Keywords: synthesis, silica, rice husk, sol-gel method Share Link | Plain Format | Corresponding Author (Nurdi Setyawan)

215	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-156
Fecal Sludge Treatment Facility Site Selection Using GIS-Based Multicriteria Analysis and AHP : Case Study Bogor Regency Luhur Akbar Devianto (*a), Ni Nengah Ayu Mirah Sari Utami Dewi (b), Helmy Qomarudin (b), Mochammad Chaerul (b) a) Department of Environmental Engineering, Faculty of Agriculture Technology, Brawijaya University Jl Veteran, Malang, 65145, Indonesia *luhur.devianto[at]ub.ac.id (b) Department of Environmental Engineering, Bandung Institute of Technology Jalan Ganesha 10, Bandung 40132, Indonesia Abstract Sanitary condition is one of the components that influencing of public health. Bogor Regency has total area 2,663.81 km2, with total population 5,965,410 in 2019. The sanitation of Bogor Regency nearly 100% is using on-site systems. Utilization of septic tank reduce the level of contamination of surface water and groundwater. However, the sludge still contain high E.Coli that potentially caused diarrhea, vomiting desease, and others, so that the handling of the sludge needs Fecal Sludge Treatment Facilities (FSTF). Before 2016, The Bogor Regency already had 10 units of fecal suction truck services, but the disposal process still was done in Kalimulya FSTF, Depok City. So that, this study aims to find feasible FSTF site location which fulfill the spatial plan, technical, and non-technical criteria. The process on determining of feasible FSTF location was using multicriteria analysis using Geographic Information Systems (GIS). Several spatial data such as the land slope, the type of soil, distance from water bodies / river, the administration of Bogor Regency, as well as land use and land capability were used for FSTF site selection. Keywords: Fecal sludge treatment facilities site selection, Geographic Information Systems, On-site sanitation system Share Link | Plain Format | Corresponding Author (Luhur Akbar Devianto)

216	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-171
Impact of Community Behavior of Sanitation on Water Quality in West Tarum Canal (WTC): Cibeet Weir - Bekasi Weir Segment Luhur Akbar Devianto (*a), Revrian Fajhri Andana (b), Mochammad Chaerul (b) a) Department of Environmental Engineering, Faculty of Agriculture Technology, Brawijaya University Jalan Veteran, Malang 65145, Indonesia *luhur.devianto[at]ub.ac.id b) Department of Environmental Engineering, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology Jalan Ganesha 10 Bandung 40132, Indonesia Abstract Water is the most important substance for life. Drinking water has particular standard which need to be fulfilled. The worse quality of the raw water, the more complex and costly are the water treatment needed. In Jakarta, raw water was supplied from Citarum River to water treatment through West Tarum Canal (WTC) which crossing Karawang and Bekasi Regencies. The WTC is surrounded by residential and industrial area which probably affecting the water quality by their domestic activity. In this research we were conducting survey of sanitation practice (wastewater and municipal solid waste) of the people who lived around the WTC, especially in Cibeet - Bekasi Weir Segment. Stratified random sampling was conducted on 153 people in 9 districts in Karawang and Bekasi Regencies. The water quality was also identified to analyse of the impact of household behavior. Keywords: Community behavior, Sanitation, Water quality, West Tarum Canal Share Link | Plain Format | Corresponding Author (Luhur Akbar Devianto)

217	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-195
Biochar Loaded-Organic Fertiliser Derived from Effluent of Two Phase Anaerobic Digestion (TPAD): Preparation and Evaluation Nimas M.S. Sunyoto(a*), Yusron Sugiarto(a,b), Mingming Zhu(b), Dongke Zhang(b) (a) Dept. of Agroindustrial Technology, Universitas Brawijaya, Jalan Veteran, Malang 65145, Indonesia *nimas.sunyoto[at]ub.ac.id (b) Centre for Energy (M473), The University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia, Australia Abstract Combining Anaerobic Digestion (AD) effluent and biochar for organic fertiliser is thought to improve their fertiliser properties and reduce nutrient leaching from AD effluent. However, the results of studies on the utilisation of AD effluent and biochar for fertiliser are varied, depending on the type of biochar and tested plants. Therefore, further studies are required. The study aims to prepare, characterise and evaluate organic fertiliser from two phase anaerobic digestion (TPAD) effluent and biochar. The organic fertilisers were prepared by mixing different percentages of biochar, ranging from 0-100 %, with TPAD effluent. The pH, water holding capacity (WHC), macro and micronutrients of the organic fertilisers were further characterised. Soilless petri dish germination bioassay was conducted to evaluate the fertilising potential and toxicity of the fertilisers. The rocket was used as the tested seed. Biochar addition increased WHC with no significant pH change. The addition of biochar significantly increased essential elements for germination and plant growth compared to TPAD effluent alone. Germination test suggested that most of the fertilisers are classified as free of toxic, except the pure biochar (weakly toxic). All fertilisers tested increased sums of root and shoot length compared to the control. The improved macro and micronutrients in the fertiliser were observed to strongly contribute to this. Maximum seed growth was achieved at the fertiliser with 10% of TPAD effluent and 90% of biochar. The study provides evidence of the potential of the biochar-loaded organic fertilisers for agricultural applications. Keywords: AD effluent, biochar, germination bioassay, organic fertiliser Share Link | Plain Format | Corresponding Author (Nimas Mayang Sabrina Sunyoto)

218	WASTE AND ENVIRONMENTAL MANAGEMENT	ABS-223
Analysis of Microplastics Content in Water in the Dempok Reservoir Kepanjen Malang Evi KURNIATI (a), Bambang RAHADI (a), Diastuti Annisaa Rachma YUSNIA (a) a) Study Program of Environmental Engineering, University of Brawijaya Abstract Keywords: microplastics, reservoir, identification Share Link | Plain Format | Corresponding Author (Evi Kurniati)

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