膜科学与技术

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Research on the treatment of high strength soybean processing wastewater with AnMBR

Authors： SUN Kai, LU Xiaofeng*, ZHOU Baochang, BIAN Xiaokai

Units： Shanghai Institute of Applied Physics, Chinese Academy of Sciences,

KeyWords： Anaerobic membrane bioreactor (AnMBR), Soybean processing wastewater, Hydraulic retention time, Membrane fouling

ClassificationCode：X703.1

year,volume(issue):pagination： 2011,31(4):65-69

Abstract：

The efficiencies of treating high-concentration soybean processing wastewater (30~160L/d) by a side-stream anaerobic membrane bioreactor (AnMBR) were studied for over 240 days. AnMBR was comprised of a expanded granular sludge bed reactor and a side-stream hyperfiltration membrane module.The effects of hydraulic retention time (HRT) on the system performance and efficiencies of different cleaning methods on the membrane fouling were explored. The optimal HRT was found to be about 18 h at 10 g COD/L feeding (OLR was about 13.6 kg COD /(m3•d)). During stable operational periods, approximate 70% methane was found in the biogas with an overall gas yield of 0.10~0.25 L/g COD. The operating conditions of membrane module with 0.1MPa operating pressure and the cleaning efficiencies of membrane fouling were studied. However, for different membrane cleaning methods, the study showed it could acquire approximate 90 percents flux recovery at the best condition.

Funds：

上海市科技攻关项目(08231200300)

AuthorIntro：

孙凯(1983- ), 男, 湖北人, 硕士研究生,主要研究方向为厌氧膜生物反应器和水污染控制; 联系电话：021-39194512; E-mail:appolosun@126.com.* 联系作者：陆晓峰, 研究员, 联系电话：021-59555119; E-mail: xflu@sinap.ac.cn.

Reference：

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