TITLE

Biogas Production from Batch Anaerobic Co-Digestion of Night Soil with Food Waste

AUTHOR(S)
Khanto, Assadawut; Banjerdkij, Peerakan
PUB. DATE
January 2016
SOURCE
EnvironmentAsia;2016, Vol. 9 Issue 1, p77
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The objective of this study is to investigate the biogas production from Anaerobic Co-Digestion of Night Soil (NS) with Food Waste (FW). The batch experiment was conducted through the NS and FW with a ratio of 70:30 by weight. The experiment is mainly evaluated by the characteristic of Co-Digestion and Biogas Production. In addition of food waste was inflating the COD loading from 17,863 to 42,063 mg/l which is 135% increased. As the result, it shows that pH has dropped off in the beginning of 7-day during digestion and it was slightly increased into the range of optimum anaerobic condition. After digestion of the biogas production was 2,184 l and 56.5% of methane fraction has obtained within 31 days of experimentation. The investigation of Biochemical Methane Potential (BMP) and Specific Methanogenic Activities (SMA) were highly observed. And the results were obtained by 34.55 mLCH4/gCODremoval and 0.38 gCH4-COD/gVSS-d. While the average COD removal from the 4 outlets got 92%, 94%, 94% and 92% respectively. However, the effluent in COD concentration was still high and it needs further treatment before discharge.
ACCESSION #
111919997

 

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