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氯化镁复配硫酸铝混凝性能及絮体特性

Keywords: 氢氧化镁,混凝,絮体,镁铝复合物

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Abstract:

在研究氢氧化镁混凝特性的基础上,复配氯化镁和硫酸铝作为混凝剂,以高岭土配水水样为研究对象,运用iPDA在线监测技术对混凝过程絮体形成进行监测,探讨了单独使用氯化镁和硫酸铝以及二者复配使用的混凝效果和絮体特性,确定复配使用的各种条件。结果表明,对于浊度20NTU,pH11.5的高岭土配水水样,氯化镁、硫酸铝最佳投加量分别为7.2mg/L(Mg2+计)和3mg/L(Al3+计);硫酸铝跟氯化镁复配使用时,先投加硫酸铝,间隔30s后投加氯化镁,混凝效果较好;在镁离子最佳投加量7.2mg/L时,铝和镁最佳质量比在1:3~1:2之间;镁铝复配时其FI值明显大于单独作用时,即絮体尺寸大小:二者复配>硫酸铝>氯化镁,而且复配条件下Zeta电位值在零电势左右浮动,浮动范围小,更利于聚集沉淀;镁铝复配时发生了协同效应,弥补了单独使用氯化镁混凝过程的不足。

References

[1]  薛晓蓓,时文歆,孙楠,等. 不同混凝剂处理低温低浊高色度水的对比试验研究.环境科学与技术,2010,33(12F):227-252 Xue Xiaobei, Shi Wenxin, Sun Nan,et al. Comparative study on the different coagulants for treating low temperature, low turbidity and high color water. Environmental Science & Technology,2010,33(12F):227-252(in Chinese)
[2]  刘海龙,王东升,王敏,等.强化混凝对水力条件的要求.中国给水排水,2006,22(5):1-4 Liu Hailong, Wang Dongsheng, Wang Min,et al. Requirement for hydrodynamic conditions in enhanced coagulation. China Water & Wasterwater,2006,22(5):1-4(in Chinese)
[3]  赵建海,宋兴福,陆强,等.氢氧化镁在环境污染治理中的应用研究进展.环境污染治理技术与设备,2002,3(5):66-69 Zhao Jianhai,Song Xingfu,Lu Qiang,et al. Research and development on the application of magnesium hydroxide in the environmental pollution control. Techniques and Equipment for Environmental Pollution Control,2002,3(5):66-69(in Chinese)
[4]  Elmaleh S., Coma J., Grasmick A., et al.Magnesium induced algal flocculation in a fluidized bed. Water Science and Technology, 1991, 23(7/9): 1695-1702
[5]  Tan B.H., Teng T.T., Mohd Omar A.K. Removal of dyes and industrial dye wastes by magnesium chloride. Water Research, 2000, 34 (2):597-601
[6]  Semerjian L., Ayoub G.M. High-pH-magnesium coagulation-flocculation in wastewater treatment. Advances in Environmental Research,2003,7(2): 389-403
[7]  闫会征.国内氢氧化镁的应用研究现状及前景. 化工时刊,2011,25(1):39-41 Yan Huizheng. The current status and prospect of the application of magnesium hydroxide. Chemical Industry Times,2011, 25(1): 39-41(in Chinese)
[8]  孙连鹏,聂锦旭,王顺强.透光率脉动检测技术评价混凝剂的混凝效果.中山大学学报(自然科学版),2002,41(2):103-105 Sun Lianpeng, Nie Jinxu, Wang Shunqiang. Research on evaluation of coagulation effect by the technique of fluctuation of transmitted light. Acta Scientiarum Naturalium Universitatis Sunyatseni,2002,41(2):103-105(in Chinese)
[9]  赵华章,王红宇,栾兆坤.高Alb聚氯化铝的混凝性能与机理研究.中国给水排水,2006,22(23):30-34 Zhao Huazhang, Wang Hongyu, Luan Zhaokun. Study on coagulation property and mechanism of high Alb polyaluminum chloride. China Water & Wasterwater,2006,22(23):30-34(in Chinese)
[10]  初永宝,高宝玉,岳钦艳,等. 铝系混凝剂的混凝动力学研究:循环剪切力和硫酸根的影响.中国科学B辑:化学,2007,37(5): 440-445 Chu Yongbao,Gao bayou,Yue Qinyan,et al. Study on aluminum coagulants coagulation dynamics:The effects of cyclic shear and sulfate. Science in China(Series B: Chemistry),2007,37(5): 440-445(in Chinese)
[11]  王梓松,谢更新,曾光明,等.聚合氯化铝对水体中双酚A的混凝特征.中国环境科学,2008,28(6):531-535 Wang Zisong.Xie Gengxin,Zeng Guangming,et al. Coagulating character of polyaluminum chloride on bisphenol A in water body. China Environmental Science,2008,28(6):531-535(in Chinese)
[12]  俞文正,杨艳玲,卢伟,等.低温条件下絮体破碎再絮凝去除水中颗粒的研究.环境科学学报,2009,29(4):791-796 Yu Wenzheng, Yang Yanling, Lu Wei,et al. Removal of particles through floc breakage and re-growth at low temperature. Acta Scientiae Circumstantiae,2009,29(4):791-796(in Chinese)
[13]  金鹏康,王晓昌.腐殖酸混凝过程FI曲线的特征参数分析.环境科学学报,2002,22(4):423-427 Jin Pengkang, Wang Xiaochang. An analysis of characteristic parameters of FI curve for coagulation of humic acid. Acta Scientiae Circumstantiae,2002,22(4):423-427(in Chinese)
[14]  金鹏康,王晓昌,王广华.天然有机物与无机悬浮物的混凝特性对比.西安建筑科技大学学报(自然科学版),2005,37(3):307-321 Jin Pengkang, Wang Xiao chang, Wang Guanghua. Comparison of the properties of coagulation between naturalorganic matter and inorganic suspended particle. Journal of Xi\'an University of Architecture & Technology (Natural Science Edition),2005,37(3):307-321(in Chinese)
[15]  胡勇有,李泗清,郭艳平,等.壳聚糖接枝三元共聚阳离子絮凝剂对高岭土悬浊液的絮凝特性.环境科学,2008,29(4):954-959 Hu Yongyou, Li Siqing, Guo Yanping, et al. Flocculation of kaolin suspensions by chitosan grafted ternary polymerization flocculant. Environmental Science,2008, 29(4): 954-959(in Chinese)
[16]  Peter Jarvis, Bruce Jefferson, Simon A. Parsons. Floc structural characteristics using conventional coagulation for a high doc, low alkalinity surface water source. Water Research,2006, 40(14):2727-2737
[17]  Gregory J.,Hiller N. Interpretation of flocculation test data. Proceeding of Filtration Technology in Europe, 1995. 405-414
[18]  Gerald P., 杨联璧. Zeta 电位测定一检验分散体的实用技术.染料与染色,1985,22(2): 28-36 Gerald P., Yang Lianbi. Zeta Potential measurement-practical technology of dispersion test. Dyes and Dyeing,1985,22(2): 28-36(in Chinese)
[19]  Yang Weishen,Kim Yongman,Liu Paul K. T., et al.A study by in situ techniques of the thermal evolution of the structure of a Mg-Al-CO3 layered double hydroxide.Chemical Engineering Science,2002,57(15): 2945-2953
[20]  赵毅,牛向楠,王山,等.层状氢氧化镁铝对染料酸性橙Ⅱ的脱色性能.环境化学,2011,30(5):1019-1024 Zhao Yi, Niu Xiangnan, Wang Shan, et al. Decolouration of acid orange dye by Mg/Al layer double hydroxides. Environmental Chemistry,2011,30(5):1019-1024(in Chinese)
[21]  姚晓亮.含镁无机盐复合混凝技术脱色处理活性染料印染废水的研究.厦门:华侨大学硕士学位论文,2006 Yao Xiaoliang. Study on color removal from reactive dye wastewater by technology of magnesium blended coagulation. Xiamen:Master\'s Degree Thesis of National Huaqiao University,2006(in Chinese)

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