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联合硅藻土与PAC强化混凝处理含藻微污染原水

Keywords: 硅藻土,聚合氯化铝,叶绿素a,溶解性有机物,重金属

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Abstract:

研究了联合硅藻土与聚合氯化铝(PAC)强化混凝对原水中藻类、溶解性有机物以及重金属离子的去除效果。结果表明,硅藻土的投加可以有效地改善絮体的沉降性能,增强藻类的混凝沉淀去除效率,PAC投加量为30mg/L时,投加0.1g/L硅藻土,叶绿素a去除率由82.5%提高到95.9%。该强化混凝过程使原水中溶解性有机物特别是大分子有机物和重金属离子的去除率有所上升。PAC投加量为30mg/L,硅藻土投加量为1.5g/L时,重金属Cu、Pb和Cd的去除率分别达到57.5%、83.7%和22.2%。

References

[1]  邹华;潘纲;陈灏.壳聚糖改性粘土对水华优势藻铜绿微囊藻的絮凝去除[J].环境科学,2004(6)
[2]  叶挺进;何君;刘超斌.珠江水中有机物分子量分布及其去除研究[J].供水技术,2010(3)doi:10.3969/j.issn.1673-9353.2010.03.004
[3]  Chiang P.C;Chang E.E;Liang C.H,NOM charac-teristics and treatabilities of ozonation processes,Chemo-sphere,2002(6).
[4]  Jeanine D. Plummer ;James K. Edzwald,Effect of ozone on algae as precursors for trihalomethane and haloacetic acid production,Environmental Science & Technology?,2001, 35(18).
[5]  Miao H;Tao W,The mechanisms of ozonation on cya-nobacteria and its toxins removal,Separation and Purifica-tion Technology,2009(1).
[6]  Jen-Jeng Chen ;Hsuan-Hsien Yeh,The mechanisms of potassium permanganate on algae removal,Water Research?,2005, 39(18).
[7]  Rita Henderson ;Simon A. Parsons ;Bruce Jefferson,The impact of algal properties and pre-oxidation on solid-liquid separation of algae,Water Research?,2008, 42(8/9).
[8]  罗岳平,施周,王仕汇.用粘土作助凝剂提高聚合氯化铝除藻效果的研究[J].中国给水排水,2007(17)
[9]  Sheng G;Wang S;Hu J,Adsorption ofPb (II) on diatomite as affected via aqueous solution chemistry and temperature,Colloids and Surfaces A:Physicochemical and Engineering Aspects,2009(1-3).
[10]  Majeda A.M.Khraisheh ;Yahya S.Al-degs ;Wendy A.M.Mcminn,Remediation of wastewater containing heavy metals using raw and modified diatomite,Chemical Engineering Journal?,2004, 99(2).
[11]  徐俊,强化混凝与吸附去除水中微量重金属小试研究,哈尔滨:哈尔滨工业大学,2007.
[12]  Mingquan Yan ;Dongsheng Wang ;Jinren Ni ;Jiuhui Qu ;Christopher W.K. Chow ;Hailong Liu,Mechanism of natural organic matter removal by polyaluminum chloride: Effect of coagulant particle size and hydrolysis kinetics,Water Research?,2008, 42(13).
[13]  R. K. Henderson ;S. A. Parsons ;B. Jefferson,Successful Removal of Algae through the Control of Zeta Potential,Separation Science and Technology?,2008, 43(7).

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