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http://dx.doi.org/10.17137/Korrae.2014.22.3.23

Solid-liquid Separation Characteristics of Membrane Filter Press according to Coagulant Properties of Anaerobic Digestion Waste Water  

Han, Seong Kuk (Clean Energy Team, Institute for Advanced Engineering)
Jung, Hee Suk (Clean Energy Team, Institute for Advanced Engineering)
Song, Hyoung Woon (Clean Energy Team, Institute for Advanced Engineering)
Kim, Ho (Clean Energy Team, Institute for Advanced Engineering)
Ahn, Dae Hyun (Daejeon Metropolitan Council Legislation and Policy Department)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.22, no.3, 2014 , pp. 23-32 More about this Journal
Abstract
Recently, it is increase in the processing of organic waste using anaerobic digestion. Therefore, the studies on the processing method for increasing the anaerobic digestion waste water. But it is very difficult to solid-liquid separation, because the characteristics of anaerobic digestion waste water. So this study evaluate solid-liquid separation efficiency of anaerobic digestion sludge using CST(Capillary Suction Time), TTF(Time to Filter). To address this problem, a membrane filter press of the lab scale was produced and the anaerobic digestion wastewater was applied to it. Polymer coagulants were found to be most suitable 7192PLUS and 1T60, It is necessary to minimum injection concentration is 7192PLUS (200 mg/L), 1T60 (100 mg/L). To evaluate dehydration efficiency, it was measured the moisture content of the dehydrated cake and suspended solids of decanted water. As a result, showed that a high removal efficiency of 97.4% when the solid-liquid separation using the membrane filter press. And the moisture content of the dehydrated cake was less than 65%.
Keywords
Anaerobic Digestion Waste Water; Solid-liquid Separation; CST; TTF; Membrane Filter Press;
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