膜科学与技术

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Study on the Influence Mechanism of Extracellular Polymers in __Microalgae and Bacteria Systems on membrane fouling of
Ultrafiltration

Authors： DING ziyao,FANG fan,XIN jiaqi,SUN chen,MA hemiao,HUANG ao,ZHANG zhe,Li kun

Units： School of Resource Environmental&Chemical Engineering Nanchang University,Key Laboratory of Poyang Lake Environment and Resources Utilization,Ministry of Education,Nanchang,330031,China；

KeyWords： microalgae-bacteria symbiosis; livestock breeding wastewater; extracellular polymeric substances; membrane fouling

ClassificationCode：X703

year,volume(issue):pagination： 2022,42(3):51-59

Abstract：

Membrane fouling of microalgae-bacteria symbiont and membrane coupling process has been one of the key bottlenecks restricting its application. In this study, microalgae, activated sludge and microalgae-bacteria symbiont were compared in terms of the EPS compositions and concentrations. The EPS compositions were further split into four parts including soluble microbial product (SMP), loosely bound EPS (LB-EPS), tightly bound EPS (TB-EPS) and microbial floc residue (MFR) to study the influence and contribution of each component to the formation of membrane fouling. The model fitting results showed that EPS components from microalgae group were highly fitted with complete blockage, standard blockage and intermediate blockage models, while those from activated sludge group and microalgae-activated sludge group were highly fitted with standard blockage, intermediate blockage and cake filtration models. SMP showed the biggest impact on membrane fouling conditions among all EPS compositions. Proteins and polysaccharides are the main organic components causing membrane fouling, and hydrophobic proteins accounted for the largest proportion. In addition, the symbiosis of microalgae and bacteria in microalgae-activated sludge group reduced the production of tryptophan, humus, and polysaccharides in TB-EPS substances, which would be positive for the mitigation of membrane fouling.

Funds：

国家自然科学基金（51768043）；中国博士后科学基金（2017M622106）；江西省博士后研究人员科研项目（2019KY23）；江西省青年科学基金（20171BAB216037）。

AuthorIntro：

丁梓尧（1997-），男，硕士生，主要从事废水资源化的膜污染研究。

Reference：

[1]Kim Hyun-Chul,Choi Wook Jin,Chae A Na, et al. Evaluating integrated strategies for robust treatment of high saline piggery wastewater.[J]. Water research,2016,89:222-231.
[2]梁恒,唐小斌,柳斌,等.超滤组合工艺处理含藻水膜污染机制及调控研究[J].给水排水,2020,56(07):54-60.
[3]Ding Yanyan,Ma Baiwen,Liu Huijuan, et al. Effects of protein properties on ultrafiltration membrane fouling performance in water treatment.[J]. Journal of environmental sciences (China),2019,77:273-281.
[4]Deng Lijuan,Guo Wenshan,Ngo Huu Hao, et al. Biofouling and control approaches in membrane bioreactors.[J].Bioresource technology,2016,221：656-665.
[5]Weigang Wang,Yuan Yan,Yuhao Zhao, et al. Characterization of stratified EPS and their role in the initial adhesion of anammox consortia[J]. Water Research,2020,169: 115223.
[6]Li Sun,Yu Tian,Jun Zhang, et al. A novel symbiotic system combining algae and sludge membrane bioreactor technology for wastewater treatment and membrane fouling mitigation: Performance and mechanism[J]. Chemical Engineering Journal,2018,344:246-253.
[7]Jiajian Xing,Hexuan Wang,Xiaoxiang Cheng, et al. Application of low-dosage UV/chlorine pre-oxidation for mitigating ultrafiltration (UF) membrane fouling in natural surface water treatment[J]. Chemical Engineering Journal,2018,344:62-70.
[8]马琳,秦国彤.膜污染的机理和数学模型研究进展[J].水处理技术,2007(06):1-4+17.
[9]HERMIA J. Constant pressure blocking filtration law application to powder-law non-newtonian fluid[J]. Transinstchemeng, 1982, 60(3): 183-187.
[10]Weiwei Huang,Huaqiang Chu,Bingzhi Dong, et al. Evaluation of different algogenic organic matters on the fouling of microfiltration membranes[J]. Desalination,2014,344:329-338.
[11]Jinling Wu,Yuan Zhuang,Haitao Li, et al. pH Adjusting to Reduce Fouling Propensity of Activated Sludge Mixed Liquor in Membrane Bioreactors[J]. Separation Science and Technology,2010,45(7):890-895.
[12]Fangang Meng, Shaoqing Zhang, Yoontaek Oh, et al.Fouling in membrane bioreactors: An updated review[J].Water Research，2017,114：151-180.
[13]Siqi Shen,Shengke Yang,Qianli Jiang, et al. Effect of dissolved organic matter on adsorption of sediments to Oxytetracycline: An insight from zeta potential and DLVO theory[J]. Environmental Science and Pollution Research,2020,27(2)：1697-1709.
[14]Maryna Peter-Varbanets,Jonas Margot,Jacqueline Traber, et al. Mechanisms of membrane fouling during ultra-low pressure ultrafiltration[J].Journal of Membrane Science,2011,377(1):42-53.
[15]Wang Yaying,Wang Jiaqin,Liu Zhiping, et al. Effect of EPS and its forms of aerobic granular sludge on sludge aggregation performance during granulation process based on XDLVO theory[J]. Science of the Total Environment,2021,795:148682
[16]陈卫,袁哲,陶辉,等.SUVA值与超滤膜污染的关系[J].华中科技大学学报(自然科学版),2011,39(02):129-132.
[17]Tahir Maqbool,Quang Viet Ly,Muhammad Bilal Asif, et al. Fate and role of fluorescence moieties in extracellular polymeric substances during biological wastewater treatment: A review[J]. Science of the Total Environment,2020,718: 137291.
[18]刘丽贞,黄琪,吴永明,等.鄱阳湖CDOM三维荧光光谱的平行因子分析[J].中国环境科学,2018,38(01):293-302.
[19]Kun Li,Jianxing Wang,Jibao Liu, et al. Advanced treatment of municipal wastewater by nanofiltration: Operational optimization and membrane fouling analysis[J]. Journal of Environmental Sciences,2016,43:106-117.

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