SMP AND EPS DISTRIBUTION AND MIGRATION BASED ON ELECTRIC FIELD CONTROL

CHEN Rui-hua; HOU Bin; LU Jing; CHAI Yan-fang; SONG Xu-tao; LUO Yi

doi:10.13205/j.hjgc.202008026

Volume 38 Issue 8

Nov. 2020

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(8): 154-159

CHEN Rui-hua, HOU Bin, LU Jing, CHAI Yan-fang, SONG Xu-tao, LUO Yi. SMP AND EPS DISTRIBUTION AND MIGRATION BASED ON ELECTRIC FIELD CONTROL[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(8): 154-159. doi: 10.13205/j.hjgc.202008026

Citation:

CHEN Rui-hua, HOU Bin, LU Jing, CHAI Yan-fang, SONG Xu-tao, LUO Yi. SMP AND EPS DISTRIBUTION AND MIGRATION BASED ON ELECTRIC FIELD CONTROL[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(8): 154-159. doi: 10.13205/j.hjgc.202008026

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SMP AND EPS DISTRIBUTION AND MIGRATION BASED ON ELECTRIC FIELD CONTROL

doi: 10.13205/j.hjgc.202008026

College of Environmental and Safety Engineering, North University of China, Taiyuan 030051, China

Received Date: 2019-10-14

Abstract

Abstract

In this study, the MFC-MBR integrated system was constructed by coupling the microbial fuel cell (MFC) with the membrane bioreactor(MBR). Based on the MFC-MBR integrated system, the effects of MFC micro-electric field on the distribution and migration of soluble microbial products (SMP) and extracellular polymer (EPS) around MBR membrane modules were studied. The results showed that the MFC-MBR integrated system could provide a maximum output voltage of 0.78 V. Under the action of this electric field, the time required for MBR’s transmembrane pressure difference (TMP) to reach 30 kPa was 14 d, which was 6 days longer than that without external power. At the same time, the scanning electron micrograph showed that the film surface covering was less than the electric field in the presence of an electric field after long-term operation. By detecting and analyzing SMP and EPS around the MBR membrane module, it was found that under the action of external electric field, SMP and loose extracellular polymer (LB-EPS) would be far away from the membrane module, and its concentration would increase with the distance from the membrane module. However, TB-EPS was distributed evenly, which relfected that TB-EPS could not be affected by the electric field. The results of this study demonstrated that SMP and LB-EPS could move away from the surface of MBR membrane under the action of micro electric field, which could effectively reduce the pollution of MBR membrane, so as to reduce operating cost for MBR.
- MFC-MBR integrated system,
- micro-electric field,
- membrane fouling,
- SMP,
- EPS

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References(22)

References

WANG Y F, JIA H, WANG J, et al. Impacts of energy distribution and electric field on membrane fouling control in microbial fuel cell-membrane bioreactor (MFC-MBR) coupling system[J]. Bioresource Technology, 2018, 269:339-345.

WANG J, BI F H, NGO H H, et al. Evaluation of energy-distribution of a hybrid microbial fuel cell-membrane bioreactor (MFC-MBR) for cost-effective wastewater treatment[J]. Bioresource Technology, 2016, 200:420-425.

JOHIR M A, SHANMUGANATHAN S, VIGNESWARAN S, et al. Performance of submerged membrane bioreactor (SMBR) with and without the addition of the different particle sizes of GAC as suspended medium[J]. Bioresource Technology, 2013, 141:13-18.

BANTI D C, SAMARAS P, TSIOPTSIAS C, et al. Mechanism of SMP aggregation within the pores of hydrophilic and hydrophobic MBR membranes and aggregates detachment[J]. Separation and Purification Technology, 2018, 202:119-129.

WANG H, LI X F, WANG X H, et al. Insight into the distribution of metallic elements in membrane bioreactor:Influence of operational temperature and role of extracellular polymeric substances[J]. Journal of Environmental Sciences, 2019, 76:111-120.

LIN H J, GAO W J, MENG F G, et al. Membrane bioreactors for industrial wastewater treatment:a critical review[J]. Critical Reviews in Environmental Science and Technology, 2012, 42(7):677-740.

MENG F G, CHAE S R, DREWS A, et al. Recent advances in membrane bioreactors (MBRs):membrane fouling and membrane material[J]. Water Research, 2009, 43(6):1489-1512.

WU Z C, WANG Z W, HUANG S S, et al. Effects of various factors on critical flux in submerged membrane bioreactors for municipal wastewater treatment[J]. Separation and Purification Technology, 2008, 62(1):56-63.

毕芳华, 贾辉, 王捷, 等. 基于MFC电场强化的MBR膜污染控制[J]. 化工学报, 2015, 66(12):5103-5110.

KHALID B M, MARIA E. Development of a novel submerged membrane electro-bioreactor (SMEBR):performance for fouling reduction[J]. Environmental Science & Technology, 2010, 44(9):3298-3304.

LIU L F, LIU J D, GAO B, et al. Minute electric field reduced membrane fouling and improved performance of membrane bioreactor[J]. Separation and Purification Technology, 2012, 86:106-112.

DAS S, GHANGREKAR M M. Tungsten oxide as electrocatalyst for improved power generation and wastewater treatment in microbial fuel cell[J]. Environmental Technology, 2019,41(7):1-8.

PEIXOTO L, RODRIGUES A L, MARTINS G, et al. A flat microbial fuel cell for decentralized wastewater valorization:process performance and optimization potential[J]. Environmental Technology, 2013, 34(13/14):1947-1956.

IZADI P, RAHIMNEJAD M. Simultaneous electricity generation and sulfide removal via a dual chamber microbial fuel cell[J]. Biofuel Research Journal, 2014,1(1):34-38.

张政. MFC-MBR耦合系统处理含酚废水的运行条件优化[D]. 太原:中北大学, 2019.

LI X Y, YANG S F. Influence of loosely bound extracellular polymeric substances (EPS) on the flocculation, sedimentation and dewaterability of activated sludge[J]. Water Research, 2007, 41(5):1022-1030.

LI H, TIAN Y, SU X Y, et al. Investigation on SMP and EPS in membrane bioreactor combined with microbial fuel cells[J]. China Environmental Science, 2013, 33(1):49-55.

郭昌梓, 于瑞娟, 强雅洁, 等. 不同污泥浓度下MFC去除有机物及产电性能的实验研究[J]. 陕西科技大学学报, 2019, 37(1):25-30

,65.

DENG L J, GUO W S, NGO H H, et al. Membrane fouling reduction and improvement of sludge characteristics by bioflocculant addition in submerged membrane bioreactor[J]. Separation and Purification Technology, 2015, 156:450-458.

程祯, 刘永军, 刘喆, 等. 好氧污泥强化造粒过程中EPS的分布及变化规律[J]. 环境工程学报, 2015, 9(5):2033-2040.

张莉. 苯酚对膜生物反应体系中微生物代谢及膜污染的影响[D]. 苏州:苏州大学, 2011.

刘阳, 张捍民, 夏杰, 等. 曝气强度对MBR活性污泥性质和膜污染的影响[J]. 中国科技论文, 2008, 3(5):314-319.

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