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http://dx.doi.org/10.5322/JES.2006.15.10.975

Acid Fermentation Characteristic of Food Wastes According to the Organic Loading Rate  

Park, Jin-Sik (Department of Health & Environmental, Kyungwoon University)
Ahn, Chul-Woo (Environmental Team, Korea National Parks Authrority)
Jang, Seong-Ho (Department of Environmental System Engineering, Pusan National University)
Publication Information
Journal of Environmental Science International / v.15, no.10, 2006 , pp. 975-982 More about this Journal
Abstract
This study has been conducted to optimum operating conditions for effective acid fermentation according to OLR(organic loading rate) in the mesophilic and thermophilic acid fermentation process. The results are summarized as follows. In order to obtain reasonable acid fermentation efficiency in performing acid fermentation of food wastes in thermophilic condition, organic loading rate was required below 20 gVS/L.d. As $SCOD_{Cr}/TKN,\;SCOD_{Cr}/T-P$ of thermophilic acid fermented food wastes In organic loading rate 20 gVS/L.d were 18.9, 73.4 respectively, it was possible to utilize as external carbon source for denitrification in sewage treatment plant after solid-liquid separation as well as co-digestion of fermented food wastes and sewage sludge.
Keywords
Acid fermentation; Food waste; Mesophilic; Thermophilic; OLR(organic loading rate);
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