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Study on Purification ofAttapulgite with Inorganic Ceramics Membranes in Treatment of Dyeing Wastewater

Shao Hui Zhou Yi Wu Qigang Zhong Jing Yao Chao Li Jin(College of Chemistry & Chemical Engineer,Changzhou University,Changzhou,Jiangsu 213164)  
The microfiltration separation process of attapulgite clay was studied with inorganic ceramic membrane and using purified attapulgite clay to treat the dyeing wastewater.The results indicated that when attapulgite dosage was 3 g,pH value was 10,agitation rate was 150 r/min,adsorption time was 90 min,attapulgite purified by membrane separation technology could effectively reduce 85% COD value and chromaticity removal was more than 95 %,which was superior to attapulgite purified by traditional technology.
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