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Quantification and control of restrictive ecological factors in acidogenic de-sulfate bioreactor

王爱杰 任南琪

哈尔滨工业大学学报(英文版)2002,Vol.9Issue(1):32-37,6.
哈尔滨工业大学学报(英文版)2002,Vol.9Issue(1):32-37,6.

Quantification and control of restrictive ecological factors in acidogenic de-sulfate bioreactor

Quantification and control of restrictive ecological factors in acidogenic de-sulfate bioreactor

王爱杰 1任南琪2

作者信息

  • 1. Research Center of Environmental Biotechnology, Harbin Institute of Technology, Harbin 150090, China
  • 2. Institute of Engineering Mechanics, Sersmological Bureau of China, Harbin 150080, China
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摘要

Abstract

As an artificial microbial ecosystem, acidogenic de-sulfate bioreactor has high efficiency of sulfate removal. The restrictive ecological factors, including causing ecological factors, such as COD/SO42- ratio and sulfate loading rate (Ns), and following ecological factors, such as pH value, oxidation reduction potential (ORP) and alkalinity (ALK) have significant effect on the ability and stability of acidogenic de-sulfate bio-reactor. Continuous flow and batch test were carried out to investigate the quantification and control of COD/SO42- ratio, Ns, pH value, ORP and ALK in acidogenic de-sulfate bioreactor supplied with molasses wastewater as sole organic carbon source and sodium sulfate as electron donor. It was demonstrated that In order to maintain high sulfate removal rate (SRR) of 80% to 90%, the restrictive factors should meet all the requirement as follows: kCOD/ SO42- ratio≥2.0, Ns≤7.5 kg (m3·d)-1,pH=5.7~6.2,ORP=-320~-420 mV and ALK=1 500~2 000 mg/L.

关键词

acidogenic de-sulfate bio-reactor/restrictive ecological factors/quantification/control/wastewater treatment

Key words

acidogenic de-sulfate bio-reactor/restrictive ecological factors/quantification/control/wastewater treatment

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引用本文复制引用

王爱杰,任南琪..Quantification and control of restrictive ecological factors in acidogenic de-sulfate bioreactor[J].哈尔滨工业大学学报(英文版),2002,9(1):32-37,6.

基金项目

Sponsored by the National Natural Science Fund of China (Grant No. 59978012) (Grant No. 59978012)

哈尔滨工业大学学报(英文版)

1005-9113

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