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Nanang Mudjito
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Chemical Engineering, Chemistry & Bioengineering Environmental Science

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PRODUKSI ALKOHOL DARI SAMPAH RUMAH TANGGA Nanang Mudjito
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.165

Abstract

This research was aimed to produce alcohol from organic solid waste using Saccharomyces cerevisiae. The solid waste was treated in varied sizes and yeast concentrations. The procedure involved size reduction by cutting the solid waste, followed by steaming. The next stage was addition of yeast for fermentation. Size variations were 3 and 10 cm. Each sample was of 2 kg weight. Samples were steamed for 30 and 60 minutes. Yeast was added in different amounts of 0%, 10%, 20%, and 30%. Fermentation was done within 2, 4 and 8 days. The highest alcohol volume of 505 mL was obtained in the reactor, WITH fine solid waste of 3 cm, which had been steamed for 60 minutes, and added by of 30% yeast, with fermentation time of 8 days.
BIOGAS SEBAGAI PENGGANTI MINYAK TANAH DAN KAYU BAKAR UNTUK BAHAN BAKAR ALTERNATIF RUMAH TANGGA Nanang Mudjito
Purifikasi Vol 10 No 1 (2009): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25983806.v10.i1.166

Abstract

Main problem about study of biogas exploitation for domestic alternative fuel is related to economic value which is directly felt by consumer society. Target of this study is to assist society, mostly of their resident look after ox livestock, in order to exploit potency of livestock dirt to be processed become main fuel becoming domestic requirement. Study of biogas exploitation conducted by compared calor value yielded from three digester that is digester from HILINK UNMER program, Department of Agriculture and Self-Supporting Socialize. Then compared calor value between biogas, kerosene, and firewood. Based the result of economics calor value examination, results that biogas calor is higher if compared with kerosene and firewood. Based on economic calculation results, the consuming of biogas as a main fuel, is more able to thrift economize budget compared than that kerosene and firewood fuel.
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