Study on fouling characteristics of reverse osmosis membrane with high residual aluminum
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    Abstract:

    The effects of influent pH, influent concentration and operating pressure on reverse osmosis membrane fouling were investigated by simulating waste water containing high concentration aluminum, with the help of membrane surface morphological and elemental analysis. A dense inorganic fouling layer was formed on the surface of reverse osmosis membrane. Among the three factors investigated, the influent pH has the most significant effect on membrane fouling. When the influent pH is neutral, the membrane flux is the lowest, as well as the salt rejection is the highest. SEM graphs and EDS analysis showed that the content of aluminum in the membrane foulant was the highest,indicating that the most serious fouling. When the acid water enters, the content of Al in the fouling layer on the film surface is lower than that of alkaline water,which means the membrane fouling is the lowest.Under the same influential pH, the effect of residual aluminum concentration on the formation of fouling layer is more significant, while the effect of operating pressure is not. As for practical process,it is suggested that adjusting the pH of inlet water to alkaline, accurately controlling the addition of aluminum coagulant, maintaining appropriate operating pressure, are key factors to retard the membrane fouling caused by residual aluminum.

    Reference
    [1] 张先进. 农药危险废液的减量技术研究[D]. 上海:上海海洋大学, 2017. ZHANG X J. Study on reduction technology of pesticide hazardous waste[D]. Shanghai:Shanghai Ocean University, 2017.
    [2] LEE S, ELIMELECH M. Relating organic fouling of reverse osmosis membranes to intermolecular adhesion forces[J]. Environmental Science & Technology, 2006, 40(3):980-987.
    [3] KIM S, HOEK E M V. Interactions controlling biopolymer fouling of reverse osmosis membranes[J]. Desalination, 2007, 202(1/3):333-342.
    [4] CHENG X X, LIANG H, DING A, et al. Application of Fe(Ⅱ)/peroxymonosulfate for improving ultrafiltration membrane performance in surface water treatment:comparison with coagulation and ozonation[J]. Water Research, 2017, 124:298-307.
    [5] 武林香. 聚合氯化铝的絮凝作用在污水处理中的应用[J]. 山西化工, 2019, 39(3):218-219, 222. WU L X. Application of flocculation of polyaluminum chloride in sewage treatment[J]. Shanxi Chemical Industry, 2019, 39(3):218-219, 222.
    [6] 卢兰芳. 几种铝盐混凝剂提高生活污水出水水质对比研究[J]. 科技创新与应用, 2014(20):135. LU L F. Comparative study on several aluminum salt coagulants for improving the quality of domestic sewage effluent[J]. Technological Innovation and Application, 2014(20):135.
    [7] 顾依华. 聚合氯化铝在城市生活污水处理中的应用[J]. 广州化工, 2012, 40(11):153-154, 192. GU Y H. Application of polymerization aluminum chloride in municipal sewage treatment[J]. Guangzhou Chemical Industry, 2012, 40(11):153-154, 192.
    [8] KABSCH-KORBUTOWICZ M. Effect of Al coagulant type on natural organic matter removal efficiency in coagulation/ultrafiltration process[J]. Desalination, 2005, 185(1/3):327-333.
    [9] DUAN J M, GREGORY J. Coagulation by hydrolysing metal salts[J]. Advances in Colloid and Interface Science, 2003, 100-102:475-502.
    [10] PERNITSKY D J, EDZWALD J K. Solubility of polyaluminium coagulants[J]. Journal of Water Supply:Research and Technology-Aqua, 2003, 52(6):395-406.
    [11] RODRÍGUEZS G S, KENNEDY M D, PRUMMEL H, et al. PACl:a simulation of the change in Al concentration and Al solubility in RO[J]. Desalination, 2008, 220(1/3):305-312.
    [12] SARI M A, CHELLAM S. Reverse osmosis fouling during pilot-scale municipal water reuse:evidence for aluminum coagulant carryover[J]. Journal of Membrane Science, 2016, 520:231-239.
    [13] GABELICH C J, ISHIDA K P, GERRINGER F W, et al. Control of residual aluminum from conventional treatment to improve reverse osmosis performance[J]. Desalination, 2006, 190(1/3):147-160.
    [14] LISTIARINI K, CHUN W, SUN D D, et al. Fouling mechanism and resistance analyses of systems containing sodium alginate, calcium, alum and their combination in dead-end fouling of nanofiltration membranes[J]. Journal of Membrane Science, 2009, 344(1/2):244-251.
    [15] DONG H Y, GAO B Y, YUE Q Y, et al. Floc properties and membrane fouling of different monomer and polymer Fe coagulants in coagulation-ultrafiltration process:the role of Fe (Ⅲ) species[J]. Chemical Engineering Journal, 2014, 258:442-449.
    [16] 孔繁鑫. 渗透膜对微量有机物的去除与传质特性研究[D]. 北京:清华大学, 2015. KONG F X. Rejection of trace organics and theirmass transfer properties in osmotic membranes[D]. Beijing:Tsinghua University, 2015.
    [17] 廖伟, 秦雄, 黄苑强, 等. 铬天青S分光光度法测定自来水中铝方法的改进[J]. 供水技术, 2017, 11(6):51-54. LIAO W, QIN X, HUANG Y Q, et al. Improvement of determination of aluminum in tap water by chrome azurol S spectrophotometry[J]. Water Technology, 2017, 11(6):51-54.
    [18] LEE J, JEONG S, YE Y, et al. Protein fouling in carbon nanotubes enhanced ultrafiltration membrane:Fouling mechanism as a function of pH and ionic strength[J]. Separation and Purification Technology, 2017, 176:323-334.
    [19] SEIDEL A, WAYPA J, ELIMELECH M. Role of charge (Donnan) exclusion in removal of arsenic from water by a negatively charged porous nanofiltration membrane[J]. Environmental Engineering Science, 2001, 18(2):105-113.
    [20] UZAL N, ATES N, SAKI S, et al. Enhanced hydrophilicity and mechanical robustness of polysulfone nanofiber membranes by addition of polyethyleneimine and Al2O3nanoparticles[J]. Separation and Purification Technology, 2017, 187:118-126.
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丁国栋,冀世锋,邢云青,蒋经纬,刘圣慧,韩乃旭,方涵,贾磊.高浓度残留铝对反渗透膜的污染特性[J].上海海洋大学学报,2020,29(5):770-778.
DING Guodong, JI Shifeng, XING Yunqing, JIANG Jingwei, LIU Shenghui, HAN Naixu, FANG Han, JIA Lei. Study on fouling characteristics of reverse osmosis membrane with high residual aluminum[J]. Journal of Shanghai Ocean University,2020,29(5):770-778.

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History
  • Received:November 14,2019
  • Revised:February 04,2020
  • Adopted:March 20,2020
  • Online: September 30,2020
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