Treatment of paper making wastewater with polyaluminum chloride - polyacrylamide composite flocculant

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  • School of Material Science and Engineering, China University of Geoscience, Beijing 100083, China

Received date: 2005-03-01

  Online published: 2010-10-01

Abstract

The samples of wastewater froma paper mill treated with composite flocculant of PAC and PAMhave been studied. The whole experiment process contains the following three steps:separating out xylogen on acidic condition;flocculating on alkaline condition;oxidizing flocculated water. The results showmost suspended substances in the wastewater could be eliminated and the CODCr of the wastewater decreases obviously when the pH is adjusted to 3-4;the CODCrof the wastewater could be lowered to about 400 mg/Lby adding 300 mg/LPAC and 15 mg/L PAMto 1 L wastewater under stirring (300 r/min); after oxidizing flocculated wastewater with Ca(ClO)2, the CODCrof the wastewater is lowered to 150 mg/L (discharge standard of water pollutants for paper industry).

Cite this article

Zhang Xiuli, Zhou Fengshan, Sun Wenxiu . Treatment of paper making wastewater with polyaluminum chloride - polyacrylamide composite flocculant[J]. Industrial Water Treatment, 2005 , 25(8) : 36 -37,38 . DOI: 11894/1005-829x.2005.25(8).36

References

[1] 董银贸,等.有机絮凝剂的研制及应用[J].北京轻工业学院学 报,1994,12(2):45-47
[2] 张育新,等.絮凝剂的现状和未来[J].化工进展,2002,21(11):799-801
[3] 陈永星.铝盐絮凝剂沉淀法处理再生纸制浆—造纸综合污水的 工艺研究和应用[J].福建化工,2001,(2):47-49
[4] 杨会森.复合絮凝剂的制备及性能研究[J].青海师专学报,2000,(3):55-57
[5] 奚旦立.环境检测手册 环境检测卷[M].北京:高等教育出版社.400-404

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