Membrane Science and Technology

Position：Home >> Abstract

Effects of potassium permanganate pre-oxidation on membrane fouling and Mn(Ⅶ) deposition during the treatment of algae-laden water by ultrafiltration

Authors： Qu Fang Shu, Yang Zhi Meng, Zhou Hong, Rong Hong Wei, He Jun Guo, Yu Hua Rong *

Units： Department of Municipal Engineer, College of Civil Engineer, Guangzhou University, Guangzhou 51006, China

KeyWords： potassium permanganate, pre-oxidation, algae-laden water ultrafiltration membrane pollution, manganese deposition

ClassificationCode：X524

year,volume(issue):pagination： 2020, 40(6):29-36

Abstract：

Ultrafiltration technology can efficiently remove algae, but membrane pollution is still the bottleneck of technical application. Permanganate and compound agents are often used in the enhanced coagulation technology in the algae-laden period of urban water plants. Therefore, whether it has the effect of inhibiting the algae membrane pollution is worthy of attention. In this paper, the effects of KMnO4 pretreatment on the ultrafiltration membrane pollution of the algae-laden water are studied. The results show that the removal capacity of algae-derived organics by ultrafiltration after KMnO4 pretreatment (29-41%) is lower than that of ultrafiltration alone (41%), which only improves the removal of fluorescent components; But excessive addition will induce EOM release, resulting in an increase in humic-acid content; KMnO4 pre-oxidation has a slight mitigating effect on ultrafiltration membrane pollution, even when 50μM is added, the terminal specific flux is only increased from 0.14 to 0.19, but it will increase the hydraulic irreversible membrane pollution during the filtration process; MnO2 particles formed by KMnO4 pre-oxidation are mainly deposited in the filter cake layer, which can be effectively removed by physical or chemical cleaning. Therefore, when using KMnO4 pre-oxidation and UF technology to treat algae-laden water, the physical strength should be properly strengthened and the cleaning frequency should be increased to suppress the growth of hydraulic irreversible membrane pollution and the deposition of MnO2 particles.

Funds：

国家自然科学基金资助项目（51878211）；广东省自然科学基金(2019A1515012232)

AuthorIntro：

瞿芳术（1984.09），男，福建宁德市人，副教授，主要研究方向为。qufangshu@163.com

Reference：

[1] Pivokonsky M, Naceradska J, Kopecka I, et al. The impact of algogenic organic matter on water treatment plant operation and water quality: A review[J]. Crit Rev Env Sci Tec, 2016,46(4):291-335.
[2] Cloot A J H P. Algal cells and coagulation,flocculation and sedimentation process[J]. Water Sci Technol, 1997,36(4):111-118.
[3] Liu J, Zhang Z, Liu Z, et al. Integration of ferrate (VI) pretreatment and ceramic membrane reactor for membrane fouling mitigation in reclaimed water treatment[J]. J Membrane Sci, 2018,552:315-325.
[4] Guo Y, Bai L, Tang X, et al. Coupling continuous sand filtration to ultrafiltration for drinking water treatment: Improved performance and membrane fouling control[J]. J Membrane Sci, 2018,567:18-27.
[5] Xing J, Liang H, Xu S, et al. Organic matter removal and membrane fouling mitigation during algae-rich surface water treatment by powdered activated carbon adsorption pretreatment: Enhanced by UV and UV/chlorine oxidation[J]. Water Res, 2019,159:283-293.
[6] Wang W, Yue Q, Guo K, et al. Application of Al species in coagulation/ultrafiltration process: Influence of cake layer on membrane fouling[J]. J Membrane Sci, 2019,572:161-170.
[7] Cheng X, Liang H, Ding A, et al. Effects of pre-ozonation on the ultrafiltration of different natural organic matter (NOM) fractions: Membrane fouling mitigation, prediction and mechanism[J]. J Membrane Sci, 2016,505:15-25.
[8] Zhang M, Lin H, Shen L, et al. Effect of calcium ions on fouling properties of alginate solution and its mechanisms[J]. J Membrane Sci, 2017,525:320-329.
[9] Wang H, Qu F, Ding A, et al. Combined effects of PAC adsorption and in situ chlorination on membrane fouling in a pilot-scale coagulation and ultrafiltration process[J]. Chem Eng J, 2016,283:1374-1383.
[10] Wan Y, Xie P, Wang Z, et al. Comparative study on the pretreatment of algae-laden water by UV/persulfate, UV/chlorine, and UV/H2O2: Variation of characteristics and alleviation of ultrafiltration membrane fouling[J]. Water Res, 2019,158:213-226.
[11] Qu F, Yan Z, Liu W, et al. Effects of manganese dioxides on the ultrafiltration membrane fouling by algal extracellular organic matter[J]. Sep Purif Technol, 2015,153:29-36.
[12] 张晓东, 乔俊莲, 吕丽萍, 等. 高锰酸钾预氧化对藻活性和胞内外有机物的影响[J]. 中国环境科学, 2017,037(7):2708-2714.
[13] Ma B, Qi J, Wang X, et al. Moderate KMnO4-Fe(II) pre-oxidation for alleviating ultrafiltration membrane fouling by algae during drinking water treatment[J]. Water Res, 2018,142:96-104.
[14] 瞿芳术. 超滤处理高藻水过程中膜污染特性及控制研究[D]. 哈尔滨工业大学, 2012.
[15] Chen J, Yeh H. The mechanisms of potassium permanganate on algae removal[J]. Water Res, 2005,18(39):4420-4428.
[16] 陈禹志. 预氧化强化混凝－膜除藻工艺膜污染控制研究[J]. 膜科学与技术, 2016,36(1):104-108.
[17] Kwon B, Park N, Cho J. Effect of algae on fouling and efficiency of UF membranes[J]. Desalination, 2005,179(1-3):203-214.
[18] 李春梅. 预氧化对南方某水库中藻类控制效果的研究[D]. 湖南大学, 2018.
[19] Henderson R K, Baker A, Murphy K R, et al. Fluorescence as a potential monitoring tool for recycled water systems: A review[J]. Water Res, 2009,43(4):863-881.
[20] Zhao X, Hu Y, Wu Y, et al. Effects of pre-oxidant (KMnO4) on structure and performance of PVDF and PES membranes[J]. Chinese J Chem Eng, 2018,26(12):2461-2470.
[21] Zhang L, Ma J, Yu M. The microtopography of manganese dioxide formed in situ and its adsorptive properties for organic micropollutants[J]. Solid State Sci, 2008,10(2):148-153.
[22] Lu Z, Lin T, Chen W, et al. Influence of KMnO4 preoxidation on ultrafiltration performance and membrane material characteristics[J]. J Membrane Sci, 2015,486:49-58.
[23] Yuan W, Kocic A, Zydney A L. Analysis of humic acid fouling during microfiltration using a pore blockage–cake filtration model[J]. J Membrane Sci, 2002,198(1):51-62.
[24] Seung-Jin Lee M D P P. Comparative analysis of fouling characteristics of ceramic and polymeric microfiltration membranes using filtration models[J]. J Membrane Sci, 2013,432:97-105.
[25] Xiao K, Mo Y, Sun J, et al. An extended standard blocking filtration law for exploring membrane pore internal fouling due to rate-determining adsorption[J]. Sep Purif Technol, 2019,212:974-979.
[26] 柳斌. 超滤处理含藻水的藻源混合污染特性与工艺调控研究[D]. 哈尔滨工业大学, 2018.
[27] 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]. Sep Purif Technol, 2017,172:51-58.
[28] 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]. J Membrane Sci, 2017,528:178-186.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com