Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Inhibitory effects of inorganic and organic coagulants on acidogenic fermentation
Abstract 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%).
Inhibitory effects of inorganic and organic coagulants on acidogenic fermentation
Abstract 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%).
Inhibitory effects of inorganic and organic coagulants on acidogenic fermentation
Kim, Jong-Oh (Autor:in) / Chung, Jinwook (Autor:in)
KSCE Journal of Civil Engineering ; 19 ; 572-577
20.08.2014
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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