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Study on the treatment of oil-bearing wastewater with the highly efficient composite oil absorbing filter plate

He Lei,Chen Junzhi(Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Department of Education,Shaanxi University of Science & Technology,Xi’an 710021,China)  
The highly efficient composite organic/inorganic oil absorbing filter plate which is used for treating the oil-bearing wastewater has been made.The research results show that the mass ratio of superfine fly ash fiber to highly efficient oil absorbing resin is 85∶15,pH of the oil-bearing wastewater sample is 10,flow quantity 2 mL/min,and temperature 60 ℃,the oil-absorption rate and the oil removal rate of the filter plate could reach 97.93% and 94.00% respectively,and the oil concentration of oil-bearing wastewater would drop from 398 mg/L to 8.50 mg/L,reaching the first class national standard of integrated wastewater discharge.
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