Modified two-phase anaerobic baffled process for low-concentration wastewater treatment
LIN Ying-zi1, HAN Xiang-kui2, YIN Jun1,2, SHAO Pi-hong3, AI Sheng-shu2
1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090;2.Dept. of Environmental Engineering,Jilin Architectural and Civil Engineering Institute,Changchun 130021,China;3.Department of Environmental Engineering,Changchun Engineering Institute,Changchun 130021,China
Abstract:
In this study low-concentration wastewater was investigated in the integral two-phase anaerobic baffled reactor by determining the removal of COD at various HRT,reflex ratios,and temperatures. Results indicate that the removal efficiency of COD is more than 90% at 25 ℃ and 10-h HRT with no wastewater recycled,and the removal efficiency is up to 88% at 8-h HRT and reflex ratio of 150%. The removal efficiency is decreased with the decreasing temperature and HRT. The removal efficiency of COD is approximately 60% at 10 ℃,which proves that the temperature does not affect it apparently. This research has significance for reducing the cost of wastewater and sludge treatment in cold area.
Key words: hydrolytic acidification reflex ratio HRT temperature
DOI：10.11916/j.issn.1005-9113.2009.03.006
Clc Number:X703
Fund:
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Modified two-phase anaerobic baffled process for low-concentration wastewater treatment
本站小编 哈尔滨工业大学/2019-10-23
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