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《Environmental Protection of Chemical Industry》 2010-04
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Treatment of Simulated Dyeing Wastewater by Adsorption on Polyacrylamide-Laponite Composite Hydrogel

Zhang Xiuju,Zheng Shaojie,Lin Zhidan,Zhang Jingjing,Rong Jianhua (College of Science and Engineering,Jinan University,Guangzhou Guangdong 510632,China)  
The composite hydrogel polyacrylamide(PAM)-laponite(XLG) was prepared by in-situ radical polymerization.The composite hydrogel can be used to treat dyeing wastewater containing basic fuchsin with a good decolorization effect.The experimental results show that: When the distilled water dosage is 8.5 mL,the optimum dosages of XLG and AM are 0.6 g and 1.0 g respectively;When the mass concentration of the wastewater is 25 mg/L and the wastewater pH is decreased from 7.5 to 3.0,the adsorption quantity of basic fuchsine on PAM-XLG composite hydrogel is decreased from 23.77 mg/g to 12.67 mg/g;When the wastewater temperature is increased from 30 ℃ to 60 ℃,the adsorption quantity is increased from 20.76 mg/g to 22.60 mg/g.
【Fund】: 国家自然科学基金资助项目(20604010);; 广东省自然科学基金资助项目(8451063201000041)
【CateGory Index】: X703
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