Molding of Molecular Sieve Residues and Their Application in Cleaning Oily Wastewater

论文摘要

To deeply clean oily wastewater,molecular sieve residues （MSRs） were sufficiently recycled and utilized due to their high specific surface area,porous structure,and outstanding adsorption property.Molding MSRs （MMSRs） were prepared by adding additives （starch,citric acid,and soluble glass） to MSRs and were then filled into a fixed bed for adsorbing and separating the oil in wastewater.Sodium dodecylbenzenesulfonate was used to modify the MMSRs,and their adsorption property was also investigated.In addition,the MSRs were characterized by scanning electron microscopy,energy-dispersive X-ray spectroscopy,Brunauer-Emmett-Teller analysis,and Fourier transform infrared spectroscopy.The results indicated that MMSRs satisfied the filling requirement of fixed bed,and their dynamic adsorption capacity could reach 0.1854 mg g-1.Furthermore,the static adsorption capacity of MMSRs achieved 1.7346 mg g-1 in the optimum conditions,and the oil adsorption performance of modified MMSRs was further enhanced.Therefore,this work suggests that MSRs are promising alternatives in cleaning oily wastewater.

论文目录

文章来源

类型: 期刊论文

作者: Zilu Jin,Yuqing Zhang,Song Wei,Shuai Sun

来源: Transactions of Tianjin University 2019年06期

年度: 2019

分类: 工程科技Ⅱ辑,工程科技Ⅰ辑

专业: 化学,环境科学与资源利用

单位: School of Chemical Engineering and Technology , Tianjin University

基金: supported by the National Natural Science Foundation of China (No. 21676180 and No. 21076143),the Key Technologies R&D Program of Tianjin (No. 15ZCZDSF00160),Tianjin Municipal Science and Technology Xinghai Program (No. KJXH2014-05)

分类号: O647.33;X78

页码: 631-640

总页数: 10

文件大小: 907K

下载量: 11

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