膜科学与技术

MBR处理造纸废水中膜污染缓解因素研究

作者：唐吴晓，李卫星，邢卫红

单位：南京工业大学化学化工学院，材料化学工程国家重点实验室，江苏南京210009

关键词：膜生物反应器；造纸废水；曝气量；GAC；膜污染

出版年,卷(期):页码： 2016,36(2):102-107

摘要：

随着造纸废水用量的增加，对传统工艺进行改进已经迫在眉睫。膜生物反应器（MBR）作为一种新型高效的处理工艺，能很好地解决这一难题。但是减轻膜污染问题是MBR在造纸废水中广泛应用的关键。本文旨在研究缓解膜污染方法，结果表明，空气效应和机械擦洗能有效地缓解膜污染。曝气强度为1800 L/(m2•h)时能充分实现对膜表面的冲刷，达到缓解膜污染的目的。通过向反应器添加支撑介质（颗粒活性炭，GAC），能在低曝气强度下保证跨膜压差（TMP）的变化趋势，进一步减小膜污染和降低能耗。

With the increase of the amount of papermaking wastewater, improvement of the traditional process was imminent extremely. As a new efficient treatment process, membrane bioreactor (MBR) was able to cope with this problem commendably.However, the key to the MBR widespread application in papermaking wastewater was to reduce the membrane fouling problem. This paper aimed to study membrane fouling mitigation methods.The results showed that the effect of air and mechanical scouring could effectively alleviate membrane fouling. The purpose of reducing membrane fouling could be fully realized with the membrane surface washed when the aeration intensity reached to 1800 L/(m2·h). Adding to support medium into the bioreactorcould ensure the change of transmembrane pressure (TMP) at a low aeration. Furthermore, it reduced membrane fouling and energy consumption.

作者简介：唐吴晓(1989-)，男，四川自贡人，硕士，南京工业大学硕士生。主要研究方向为膜应用。通讯联系人,E-mail：wxli@njtech.edu.cn.

参考文献：

[1] Simstich B, Beimfohr C, HornH. Lab scale experiments using a submerged MBR under thermophilic aerobic conditions for the treatment of paper mill deinking wastewater[J]. Bioresource Technol, 2012, 122:11-16.
[2] QuX, GaoWJ, HanMN, et al. Integrated thermophilic submerged aerobic membrane bioreactor and electrochemical oxidation for pulp and paper effluent treatment – towards system closure[J]. Bioresource Technol, 2012, 116: 1-8.
[3] BrownK, GhoshdastidarAJ, HanmoreJ, et al. Membrane bioreactor technology: a novel approach to the treatment of compost leachate[J]. Waste Manage, 2013, 33(11): 2188-2194.
[4] WangX H, QianJ J, LiX F, et al. Influences of sludge retention time on the performance of submerged membrane bioreactors with the addition of iron ion[J]. Desalination, 2012, 296: 24-29.
[5] SantosA, MaW, JuddSJ. Membrane bioreactors: Two decades of research and implementation[J]. Desalination, 2011, 273(1): 148-154.
[6] Judd S. The status of membrane bioreactor technology[J]. TrendsBiotechnol, 2008, 26(2): 109-16.
[7] Le-ClechP. Membrane bioreactors and their uses in wastewater treatments[J]. Appl Microbiol Biotechnol, 2010, 88(6): 1253-1260.
[8] ZhangY Z, Ma C M, YeF, et al. The treatment of wastewater of paper mill with integrated membrane process[J]. Desalination, 2009, 236(1-3): 349-356.
[9] Martín-PascualJ, Reboleiro-RivasP, López-LópezC, et al. Influence of hydraulic retention time on heterotrophic biomass in a wastewater moving bed membrane bioreactor treatment plant[J]. Int J Environ Sci Technol, 2014, 11(5): 1449-1458.
[10] 应京强，高彦昌，杨永哲. 基于跨膜压差变化特征的膜生物反应器曝气条件的优化[J]. 膜科学与技术, 2014, 34(2): 45-50.
[11] PradhanM, VigneswaranS, KandasamyJ, et al. Combined effect of air and mechanical scouring of membranes for fouling reduction in submerged membrane reactor[J]. Desalination, 2012, 288: 58-65.

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