Treatment of methanol wastewater with two-stage and two-phase anaerobic process
HAN Hong-jun, Ma Wen Heng
School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
Abstract:
The two-stage and two-phase anaerobic process (TSTP) composed of hydrolytic acidification reactor, first-order and second-order external circulation anaerobic reactors (EC) was taken to treat methanol wastewater. Test results show that TSTP process is quick start-up in 51 d, and the maximum VFA of hydrolytic acidification reactor effluent reaches 876 mg/L. Under the condition of volume loading of 6.56 kgCOD/m3·d, COD removal rate of the first-order EC reactor is about 85%, and under the condition of volume loading of 1.02 kgCOD/m3·d, COD removal rate of the second-order EC reactor is about 50%. When the inflow COD of TSTP process is between 7000-11000 mg/L, its effluent COD is lower than 600 mg/L. In the biological conversion process of methanol into methane,the production of acetic acids as an intermediate product can be ignored and the direct production of methane from methanol is predominant.
Key words: methanol wastewater two-stage and two-phase anaerobic process (TSTP) external circulation anaerobic reactor (EC) hydrolytic acidification reactor
DOI：10.11916/j.issn.1005-9113.2010.01.012
Clc Number:X703.1
Fund:
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Treatment of methanol wastewater with two-stage and two-phase anaerobic process
本站小编 哈尔滨工业大学/2019-10-23
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