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- W845643559 abstract "Influence of pH on the anaerobic hydrolysis and acidogenesis was investigated to determine the proper alkalinity requirement in the fermentation of food waste. Two completely mixed acidogenic reactors were used for the experiment. The food waste was obtained from a university dining hall and shattered after removal of impurities and screening with a sieve. The prepared food waste was intermittently fed into the reactor once a day and the organic loading rate was 5 g VS/L/d. During the experiments, dilution water was supplied continuously into the reactors and the flow rate was 4.29L/d. When the alkalinity in the dilution water was controlled to at 3,000 mg/L, 5,000 mg/L and 8,000mg/L as , the pH values of the acidogenic reactor were maintained around 5.3, 6.3 and 7.0, respectively, at steady state. The hydrolysis of particulate food waste was improved from 32.1% to 55.2% according to the increase of pH from 5.3 to 7.0. However, at lower pH around 5.3, the acidification percentage of hydrolyzed organics was higher as 82.2% than those of higher ranges of pH. The major components of VFAs produced from the acidogenesis of food waste were the short chain fatty acids such as acetic acid, propionic acid, and butyric acid. However, the contents of valeric and caproic acid were gradually increased according to the decrease of the pH from 7.0 to 5.3." @default.
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- W845643559 date "2002-01-01" @default.
- W845643559 modified "2023-09-27" @default.
- W845643559 title "Influence of pH on the Hydrolysis and Acidogenesis of Food Waste" @default.
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