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Optimizing the aeration condition for membrane bioreactor based on the characteristics of transmerbrane pressure increasing rate

Authors： YING Jingqiang，GAO Yanchang，YANG Yongzhe

Units： School of Environmental and Municipal Engineering，Xi’an University of Architecture and Technology，Xi’an 710055，China

KeyWords： Membrane bioreactor; transmembrane pressure; aeration intensities; process control

ClassificationCode：X703.1；TQ028.8

year,volume(issue):pagination： 2014,34(2):45-50

Abstract：

Submerged membrane bioreactor (MBR) was employed for petrochemical industry wastewater treatment. Transmerbrane pressure (TMP) and the TMP increasing rate (K) have been investigated under different aeration rates (300L/h, 150L/h and 75L/h). The result indicated that the evolution of TMP followed a simple exponential relationship with filtration time, i.e. . K varied from 0 to 2.5 Pa/s under different aeration conditions. Change of aeration intensities presented insignificantly impact on the rising tendency of the K value. However, the aeration rates can change the characteristics of K increasing rate. The higher aeration rate can result in the slower increase of K. The result indicated that K could be potentially used to optimize the aeration in MBR and thus reducing the membrane fouling of MBR.

Funds：

高等学校博士学科点专项科研基金（20116120110008）；陕西省自然科学基础研究计划重点项目（2010JZ008）

AuthorIntro：

应京强（1989-），男，浙江温州人，硕士生，从事膜生物反应器研究 *通讯联系人

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