文章基本信息

标题：Optimization of Coagulation-Flocculation Process for Automotive Wastewater Treatment using Response Surface Methodology
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作者：Abdul Fattah Abu Bakar ; Azhar Abdul Halim ; Marlia Mohd Hanafiah 等
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2015
卷号：14
期号：3
语种：English
出版社：Technoscience Publications
摘要：This study was conducted to assess the optimization of the coagulation-flocculation process and toinvestigate the interactive effects of experimental factors in automotive wastewater treatment. Basedon the coagulation-flocculation process, an automotive wastewater was treated using polyaluminiumchloride as the coagulant and anionic polyacrylamide as the flocculant. Response surface methodologywas applied to optimize the operating variables: coagulant dosage, flocculant dosage and pH. Wefound that the optimum conditions for chemical oxygen demand removal (73.7%) were, a coagulantdosage of 73.3 mg/L, a flocculant dosage of 3.46 mg/L and pH 7.45. The optimum conditions for theremoval of heavy metals (Fe, Cr, Cu) were, a coagulant dosage range of 65.26-170.9 mg/L, a flocculantdosage of 5.36 mg/L, and pH 6.13 (with 78.7-99.7% of heavy metals removal). The experimental dataand predicted model proved that RSM is a suitable approach for optimizing the coagulation-flocculationprocess in automotive wastewater treatment.