文章基本信息

标题：INTERACTION OF KEY PROCESS VARIABLES ACTING ON THE SIMULTANEOUS ADSORPTION OF PHENOLICS IN BINARY SOLUTION: TREND AND OPTIMIZATION OF ADSORPTION
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作者：Kwok-Yii Leong ; Sylvia See ; Jun-Wei Lim 等
期刊名称：Journal of Industrial Pollution Control
印刷版ISSN：0970-2083
出版年度：2017
卷号：33
期号：1
页码：712-722
语种：English
出版社：Research and Reviews
摘要：The interest of present study focuses on the optimization of key process variables in enhancing the simultaneous adsorption process of phenol and 4-chlorophenol (4-CP) from their binary solution using response surface methodology (RSM). The interactive effects of spherical activated carbon (SAC) dosage, pH of solution and contact time were statistically analyzed via central composite design (CCD) of batch assessments. The CCD derived models of phenol and 4-CP removals were statistically found providing a satisfactory approximation to the real system. Among the exploited process variables, contact time was classified by the models to contribute the least effect on simultaneous adsorption process of phenol and 4-CP. The gradual increase of pH would undermine the effectiveness of adsorption process, though the SAC dosage and contact time responded reversely. The systematic statistical consideration of process variables found the optimum interaction occurred at the contact time of 24 h, SAC dosage of 0.09 g and pH of 7 with the attainable adsorption capacities of phenol and 4-CP in the ranges of 47% to 49% and 88% to 93%, respectively. Verification by experimental run was performed with phenol and 4-CP removals found at 49% and 92%, respectively, which were in agreement with the CCD predicted values.
关键词：Simultaneous adsorption; Process variable optimization; Central composite design; Phenol; 4-Chlorophenol