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基于平行因子分析的藻菌共生膜污染机制研究

作者：樊华，方凡，刘强，辛佳期，孙盛进，李昆

单位：南昌大学资源环境与化工学院，鄱阳湖环境与资源利用教育部重点实验室，南昌330031

关键词：藻菌共生，膜污染，胞外聚合物，畜禽养殖废水

DOI号：

分类号： TQ 028.8

出版年,卷(期):页码： 2020,40(4):17-24

摘要：

本研究基于不同藻菌共生体系（微藻-真菌、微藻-细菌）处理畜禽养殖废水，采用死端过滤的超滤杯实验测试不同体系（A:纯微藻体系；B：微藻-真菌体系；C：微藻-细菌体系）混合液在超滤过滤中的污染状况，研究膜污染形成机制。实验结果表明，B、C组的通量衰减速度明显低于A组，A组膜污染模型以标准堵塞和滤饼层为主，然而B、C组膜污染与标准堵塞，中间堵塞和滤饼层模型均有很高的拟合度。A组混合液粒径在1-30 μm范围内比B和C组占比更多，在30-1000 μm范围分布较少，导致膜孔堵塞更快，形成的滤饼层更为紧密，膜污染更严重。膜清洗液EEMs平行因子分析法结果表明膜面有机污染物主要为色氨酸和酪氨酸类蛋白质。B和C组藻菌共生作用大大减少了EPS类物质的产量，尤其是色氨酸类蛋白质，从而减轻了膜污染状况。

In this study, microalgae-fungus consortia and microalgae-bacteria consortia were utilized for the treatment of digested swine manure wastewater, and their influence on ultrafiltration membrane fouling was investigated using filtration cell with dead end filtration mode. Three kinds of mixture from different groups (A: pure microalgae system; B: microalgae-fungal system; C: microalgae-activated sludge system) were tested for membrane fouling conditions. The results showed that the flux decreasing rates of Group B and C were lower than that of Group A. he membrane fouling mechanism for Group A was dominated by standard blocking and cake filtration. However, the membrane fouling mechanisms for Group B and C had a high degree of fitting with standard blocking, intermediate blocking and cake filtration models. The mixture from Group A had a larger proportion in the particle size distribution of 1-30μm and less among the range of 30-1000μm in comparison with those of Group B and Group C, resulting in faster blocking of the membrane pores, looser cake layer and more serious membrane fouling for Group A. The analysis of EEMs coupled with PARAFAC modeling of desorbed solutions indicated that the organic pollutants on the membrane surface were mainly tryptophan, tyrosine proteins and polysaccharides. Both microalgae-fungus consortia and microalgae-bacteria consortia can form harmonious symbiotic relationship, which greatly reduced the EPS production, especially tryptophan proteins that contributes to the mitigation of membrane fouling.

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参考文献：

[1] Li K, Liu Q, Fang F, et al. Microalgae-based wastewater treatment for nutrients recovery: A review[J]. Bioresource Technology. 2019, 291: 121934.
[2] 王雪飞，任洪艳，阮文权. 膜光生物反应器污水养藻技术及其膜污染研究[J]. 膜科学与技术. 2017, 37(05): 82-87.
[3] 王小波，瞿芳术，王昊，等. 超滤膜处理高藻水过程中天然颗粒物对膜污染的影响[J]. 膜科学与技术. 2017, 37(06): 39-45.
[4] Xie B, Gong W, Yu H, et al. Immobilized microalgae for anaerobic digestion effluent treatment in a photobioreactor-ultrafiltration system: Algal harvest and membrane fouling control[J]. Bioresource technology. 2018, 268: 139-148.
[5] Yu H, Qu F, Liang H, et al. Understanding ultrafiltration membrane fouling by extracellular organic matter of Microcystis aeruginosa using fluorescence excitation–emission matrix coupled with parallel factor analysis[J]. Desalination. 2014, 337: 67-75.
[6] Huang W, Hu M, Qin X, et al. Fouling of extracellular algal organic matter during ultrafiltration: The influence of iron and the fouling mechanism[J]. Algal Research. 2017, 25: 252-262.
[7] Yan Z, Liu B, Qu F, et al. Control of ultrafiltration membrane fouling caused by algal extracellular organic matter (EOM) using enhanced Al coagulation with permanganate[J]. Separation and Purification Technology. 2017, 172: 51-58.
[8] Zhang X, Devanadera M C E, Roddick F A, et al. Impact of algal organic matter released from Microcystis aeruginosa and Chlorella sp. on the fouling of a ceramic microfiltration membrane[J]. Water Research. 2016, 103: 391-400.
[9] Stedmon C A, Bro R. Characterizing dissolved organic matter fluorescence with parallel factor analysis: a tutorial[J]. Limnology and Oceanography: Methods. 2008, 6(11).
[10] Zheng Y, Tang B, Ye J, et al. A crucial factor towards a sustainable process for municipal wastewater treatment: Fouling effects of different statuses of biomass in the membrane bioreactors with no sludge discharge[J]. Journal of Cleaner Production. 2018, 192: 877-886.
[11] Liu B, Qu F, Liang H, et al. Algae-laden water treatment using ultrafiltration: Individual and combined fouling effects of cells, debris, extracellular and intracellular organic matter[J]. Journal of Membrane Science. 2017, 528: 178-186.
[12] Huang W, Chu H, Dong B, et al. Evaluation of different algogenic organic matters on the fouling of microfiltration membranes[J]. Desalination. 2014, 344: 329-338.
[13] Zhang X, Fan L, Roddick F A. Feedwater coagulation to mitigate the fouling of a ceramic MF membrane caused by soluble algal organic matter[J]. Separation and Purification Technology. 2014, 133: 221-226.
[14] Stoller M. On the effect of flocculation as pretreatment process and particle size distribution for membrane fouling reduction[J]. Desalination. 2009, 240(1): 209-217.
[15] Wang J, Li K, Yu D, et al. Fouling characteristics and cleaning strategies of NF membranes for the advanced treatment of antibiotic production wastewater[J]. Environmental Science & Pollution Research. 2015, 24(10): 1-11.
[16] Zhang X, Fan L, Roddick F A. Influence of the characteristics of soluble algal organic matter released from Microcystis aeruginosa on the fouling of a ceramic microfiltration membrane[J]. Journal of Membrane Science. 2013, 425-426(1): 23-29.
[17] 时文歆，段英随，张冰衣，等. 凹凸棒土－ＭＢＲ组合工艺处理微污染水源水的效能与机理[J]. 膜科学与技术. 2016，36(02): 96-101.

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