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化工进展  2015 

磁加载絮凝处理含铜废水

DOI: 10.16085/j.issn.1000-6613.2015.11.039, PP. 4065-4070

Keywords: 磁加载絮凝,含铜废水,粒度分布,沉降,分离

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Abstract:

目前磁加载絮凝技术已被研究用于处理多种类型的废水,然而关于此技术中磁粉作用机理方向少有报道。为了解决这一问题,本文采用磁加载絮凝法处理模拟微蚀铜废水,研究了磁粉的加入对Cu2+和浊度去除率、絮体沉降速率以及絮体粒径的影响,深入分析了磁粉的作用规律和机理,为磁加载絮凝法应用到实际工程中提供了理论依据和技术参数。结果表明,当磁粉投加量和粒径分别取2.0g/L和300～400目时,磁加载絮凝效果最好。此时,Cu2+和浊度去除率均达到最高值98.53%和94.72%,比传统絮凝法高出4.11%和0.61%;絮体沉降速率最快,达5cm/min,是传统絮凝沉降速率的3.64倍;絮体粒径D50也达到最大值41.94μm,较传统絮体粒径大20μm。磁粉投加量过多或过少、粒径过大或过小都会相应地减慢磁絮体的生长速率。

 References

[1]  孙水裕,张俊浩,刘炳基,等. 磁种凝聚-磁分离技术处理含 Ni2+ 电镀废水的研究[J]. 环境工程,2002,2(4):l7.
[2]  Stolarski M,Eichholz C,Fuchs B,et al. Sedimentation acceleration of remanent iron oxide by magnetic flocculation[J]. China Particuology,2007,5(1):145-150.
[3]  Lipus L C,Krope J,Crepinsek L. Dispersion destabilization in magnetic water treatment[J]. Journal of Colloid and Interface Science,2001,236(1):60-66.
[4]  Yu J,Wang D,Ge X,et al. Flocculation of Kaolin particles by two typical polyelectrolytes:A comparative study on the kinetics and floc structures[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects,2006,290(1):288-294.
[5]  Ma A,Hadi P,Barford J,et al. Modified empty bed residence time model for copper removal[J]. Industrial & Engineering Chemistry Research,2014,53(35):13773-13781.
[6]  孟勇,苏胜培,毛丽秋,等. 丙烯酰胺-丙烯酸-丙烯羟肟酸共聚物乳液脱除电镀废水中的重金属离子[J]. 化工进展,2009,28(11):2072-2075. 浏览
[7]  林梅莹,尚小琴,李淑妍,等. 氨基改性淀粉重金属废水处理剂的制备及应用[J]. 化工进展,2011,30(4):854-856. 浏览
[8]  Ku Y,Jung I L. Photocatalytic reduction of Cr(Ⅵ) in aqueous solutions by UV irradiation with the presence of titanium dioxide[J]. Water Research,2001,35(1):135-142.
[9]  Doula M K. Simultaneous removal of Cu,Mn and Zn from drinking water with the use of clinoptilolite and its Fe-modified form[J]. Water Research,2009,43(15):3659-3672.
[10]  张帆,李菁,谭建华,等. 吸附法处理重金属废水的研究进展[J]. 化工进展,2013,32(11):2749-2756. 浏览
[11]  Heidmann I,Calmano W. Removal of Zn(Ⅱ),Cu(Ⅱ),Ni(Ⅱ),Ag(Ⅰ) and Cr(Ⅵ) present in aqueous solutions by aluminium electrocoagulation[J]. Journal of Hazardous Materials,2008,152(3):934-941.
[12]  Samper E,Rodríguez M,de la Rubia M A,et al. Removal of metal ions at low concentration by micellar-enhanced ultrafiltration (MEUF) using sodium dodecyl sulfate (SDS) and linear alkylbenzene sulfonate (LAS)[J]. Separation and Purification Technology,2009,65(3):337-342.
[13]  Heredia J B,Martín J S. Removing heavy metals from polluted surface water with a tannin-based flocculant agent[J]. Journal of Hazardous Materials,2009,165(1):1215-1218.
[14]  Ma M. Enhancement of hematite flocculation in the hematite-starch-(low-molecular-weight) poly(acrylic acid) system[J]. Industrial & Engineering Chemistry Research,2011,50(21):11950-11953.
[15]  曾慧峰,孙春宝,王然,等. 垃圾渗滤液的加载磁絮凝预处理工艺研究[J]. 环境工程学报,2011,10(5):2303-2306.
[16]  张帅,李军,陈瑜. 加载絮凝沉淀工艺在水处理中的应用[J]. 给水排水,2009(s1):274-278.
[17]  Li Y,Wang J,Zhao Y,et al. Research on magnetic seeding flocculation for arsenic removal by superconducting magnetic separation[J]. Separation and Purification Technology,2010,73(2):264-270.

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