Inhibitory effects of inorganic and organic coagulants on acidogenic fermentation

被引：16

作者：

Kim, Jong-Oh ^{[1
]}

Chung, Jinwook ^{[1
]}

机构：

[1] Hanyang Univ, Dept Civil & Environm Engn, Seoul 133791, South Korea

来源：

KSCE JOURNAL OF CIVIL ENGINEERING | 2015年 / 19卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

acidogenic fermentation; inhibition; inorganic/organic coagulant; volatile fatty acid; ANAEROBIC-DIGESTION; WASTE-WATER; PRIMARY SLUDGE; REMOVAL;

D O I：

10.1007/s12205-014-1034-9

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The objective of this study is to evaluate the inhibitory effect of inorganic and organic coagulant on acidogenic fermentation in municipal wastewater treatment plant. It was found that the conversion from organic matter to Volatile Fatty Acid (VFA) decreased more than 10% when the dosages of coagulant exceeded 46 mg-Al/L and 120 mg-Fe/L. Inhibitory effect by Al on acidogenic fermentation was greater than that by Fe. When the dosage of organic polymer was over 102 mg/L, the VFA conversion fell to below 2%. Ultrasonic treatment could increase the VFA conversion for coagulated sludge for all the coagulants tested (over 12%).

引用

页码：572 / 577

页数：6

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