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~ Upaya Peningkatan Produksi Biogas Sebagai Alternatif

Alpen Steel | Renewable Energy


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~ Upaya Peningkatan Produksi Biogas Sebagai Alternatif

UPAYA MENINGKATAN PRODUKSI BIOGAS SEBAGAI ENERGI ALTERNATIF

Tujuan dari penelitian adalah untuk mengetahui pengaruh konsentrasi COD, sludge recycle, sirkulasi dan recycle ratio terhadap peningkatan produksi biogas. Digester mempunyai volume efektif 500 l.Kotoran sapi digunakan sebagai starter dan molases digunakan sebagai bahan baku untuk pembuatan biogas. Konsentrasi COD mempengaruhi HRT dan laju alir feed. Pada Konsentrasi COD 20.000 mg/L, HRT nya 6,6 hari, dengan load COD sebesar 3 kg COD/m3, dan laju alirnya adalah 75 liter/hari. Pda COD 30.000mg/L, HRT-nya adalah, dengan load COD 3 kg COD/m3 dan laju alirnya adalah 50 liter/hari. Biogas yang dihasilkan dari COD 20.000 mg/liter tanpa sirkulasi adalah 426.35 L biogas/hari dan dengan sirkulasi dihasilkan 440.4 liter biogas/hari. Pada COD 20000 mg/L dengan recycle ratio 1:1 dan 1:2, biogas yang dihasilkan adalah 330,98 mg/L dan 263 L biogas/hari.. Pada COD 30.000 mg/L, dengan dan tanpa pengembalian sludge, dihasilkan 508 liter biogas/ hari dan 529.014 liter biogas/hari. Pada COD 30.000 mg/L, total solid yang dihasilkan tanpa dan dengan pengembalian sludge adalah 28,5 mg/L dan 32,5 mg/L.Penurunan konsentrasi COD untuk konsentrasi COD 30,000 mg/L adalah sebesar 99% dan gas yang dihasilkan adalah sebesar 529.014 L/hari dan SVI-nya sebesar 40,5 mL/mg dan 1 kg COD dapat menghasilkan 0,35 m3 biogas.

Alt. Description

The objective of this observation is to know COD concentration ,sludge recycle ,circulation,and influence of recycle ratio in order to increase biogas production. The digester has 500 liter effective volume. Molasses was used as raw material and cow manure as starter. Hydraulic Retention Time (HRT) and flow rate depended on the COD concentration. On COD 20000 mg/L, HRT = 6.6 days, COD load was 3 kg COD/m3, and flow rate was 75 L/day. For COD 30000 mg/L, HRT 10 days, COD load 3 kg COD/ m3 and flow rate was 50 L/day. Biogas resulted from COD 20000 mg/L without circulation was 426.35 L biogas/day and with circulation 440.4 L biogas/day was attain. On COD 20000 mg/L with recycle 1:1 and 1:2, biogas attain was 330.98 L biogas/day and 263 L biogas/day, respectively. For COD 30000 mg/L, with and without sludge recycling, 508 L biogas/day and 529.014 L biogas/day biogas was attain, alternately. In the same COD, total solid that obtain with and without sludge recycling was 28.5 mg/L and 32.5 mg/L. COD reduction for 30000 mg COD/L was 99% and the gas production was 529.014 L/day at SVI 40.5 mL/mg. 1 kg COD can obtain 0.35 m3 biogas

Created by Yuniarta, Dery Vitra; Reapradana, Yosi
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