Judul: IPB (Bogor Agricultural University)
Abstrak: The problem resulting from rain percolating through urban waste is transport of harmful bacteria and hazardous chemicals from dumps into groundwater and nearby lakes or streams. Another issue of the urban waste is exptosion of landfill gas and bum may cause death and property damage. This research is intended to find out: (1) the composition of polutant produced by leachate of urban waste (2) the composition of landfill gas (3) frequency of diseases around the landfill waste and (4) peroeption of the people who lived around landfill waste regarding the effect of the landfill waste. The research was conducted in TPA Bantar Gebang Sub District, Bekasi City. The research of the environmental pollution aspect was done by chembJl anatysis of sample leacheate by gas chromatography for landfill gas from Bantar Gebang landfill. Data was collected since year 1999 to 2002. The aspect of the environmental health was done by (1) survey of three residential locations with 60 respondents and (2) survey of Bantar Gebang Puskesmas. Similarly, the research of the economy aspect was carried out by survey of three residential locations and Samar Gebang site office.
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Judul: IPB (Bogor Agricultural University)
Abstrak: TPA Cipayung has been operated since 1992, at Cipayung, Pancoran Mas, Kota Depok. To face the problem around TPA Cipayung, it is important to development management some analysis. The research purpose of this research were: 1) to explain environmental quality, social, economic and health condition around Cipayung garbage’s TPA area at Depok city. 2) to analyse policy strategy that related to effort of managemant of Cipayung garbage’s TPA at Depok city. 3) to design alternative policy of management of Cipayung garebage’s TPA at Depok city. The research methods used descriptive analysis to analyze the quality of up down wells, BAP, lindi water, and microbiology. Then, the results were compared with Permenkes RI No. 416/MenKes//Per/IX/1990, Kriteria Mutu Air PPRI No.28/2001. Gol. III, Baku Mutu: SK Gubernur Jawa Barat No. 6/1999. Sampel water analysis was conducted in laboratory of PT. Mutu Agung Lestari. The condition of social economy and health in location around of TPA Cipayung were analyzed by descriptive analyzed. Data of interview result with profesional about policy of management TPA Cipayung was analyzed with AHP method, using expert choice 2000 program. Analysis of garbage management model in TPA Cipayung using Microsoft Office Excel and Stimulation model analysis of dinamic system using Stella software vertion 8.0. The result of this analysis show the physical variabel of water quality in three location still under NAB that were permitted. Except the temperatur variabel have rather high than NAB. The result of many chemical variabel in three location sampel have high then NAB that permitted, such as Fe, Mn, NO2 -N, BOD5, COD, DO, Zn, and Fenol. The result of social economy aspect are there is some problems around TPA Cipayung and the benefiit of economy that TPA Cipayung’s society can get. Health of society in location around TPA Cipayung in general, suffering diare, fever, skin infection and ispa.The result of Analysis Hierarchy Process (AHP) showed that (1) alternative of policy is the optimalization of garbage management, (2) the optimalization of cleaning service, (3) third priority is the increase of stakeholder’s participation. (4) law enforcement. The result of garbage management strategy analisys in TPA Cipayung recomendation program 3R+1P, start from the garbage source, until the garbage that throw in to TPA getting low and can minimalize the garbage transportation cost to TPA.
Keyword: Sanitary Landfill, Unit Pengolahan Sampah (UPS), West Java, Analytical Hierarcy Process

Judul: Sintesis Nanorod Seng Oksida (ZnO) dengan Metode Sonokimia
Abstrak: Gelombang ultrasonik telah digunakan untuk membantu sintesis ZnO. ZnO terbentuk dari campuran ZnAc dan NaOH. ZnO disintesis dengan variasi konsentrasi ZnAc 0.5 M ( ZnO 1:1 ) dan 1.5 M ( ZnO 3:1 ) yang dicampurkan dengan NaOH konsentrasi 0.5 M. Sampel yang diporoleh dikarakterisasi dengan XRD dan SEM. Karakterisasi difraksi sinar-X menunjukkan bahwa struktur kristal ZnO yang dihasilkan merupakan heksagonal dengan pertumbuhan yang dominan pada orientasi bidang nonpolar a dengan indeks hkl 101. Kristalinitas dan kemurnian kristal ZnO 1:1 lebih baik dibandingkan ZnO 3:1 ditunjukan dengan intensitas puncak difraksi sinar-X yang lebih tinggi, sempit dan tajam. Untuk ukuran kristalit ZnO 1:1 mempunyai rata-rata ukuran kristalit 30.57 ± 4.31 nm sedangkan ZnO 3:1 mempunyai ukuran rata-rata 20.25 ± 7.12 nm. Dari ukuran kristal yang terbentuk partikel ZnO termasuk nanokristal. ZnO 1:1 terbentuk batang-batang nano (nanorods) sedangkan pada ZnO 3:1 tidak terbentuk batang-batang nano (nanorods). Untuk ukuran morfologi, ZnO 1:1 mempunyai rata-rata ukuran butiran kristal 230 nm dan lebih besar dibandingkan ukuran ZnO 3:1 yang mempunyai rata-rata ukuran butiran kristal 50 nm.
Keyword: nanorot, sintesis, sonokimia, ZnO