Improving the Removal of Anionic Surfactant in Cardboard Industry Wastewater by Coagulation/Flocculation: Process Optimization with Response Surface Methodology

被引：0
|
作者：
S. Harif
M. A. Aboulhassan
L. Bammou
Zakarya Baicha
Francisco José Hernández Fernández
机构：
[1] Ibn Zohr University,Laboratory of Mechanic Process Energy and Environment, National School of Applied Sciences
[2] Équipe des sciences de l’ingénierie,Department of Chemical and Environmental Engineering, Regional Campus of International Excellence “Campus Mare Nostrum”
[3] Laboratoire des sciences de l’ingénieur de management et de l’innovation pédagogique- ESTEM,Chemical Engineering Department, Faculty of Chemistry
[4] Technical University of Cartagena,undefined
[5] University of Murcia,undefined
来源：
Water, Air, & Soil Pollution | 2023年 / 234卷
关键词：
Cardboard industry wastewater; Coagulation/flocculation; Response surface methodology; Box–Behnken design; Anionic surfactants;
D O I：
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学科分类号：
摘要：
Response surface methodology (RSM) and Box–Behnken design (BBD) were investigated to optimize the coagulation–flocculation process (CF) of cardboard industry effluent using polyaluminum chloride (PAC) and cationic polyacrylamides (c-PAM). The aim is to identify the optimum combination of coagulant dose, pH, and flocculant dosage for the highest removal efficacy of chemical oxygen demand (COD) and anionic surfactant removal. According to the results, COD reduction was principally controlled by PAC and c-PAM, while anionic surfactant was affected by pH and PAC. In addition, COD and anionic surfactant removal models fitted well with the experimental results (R2 > 0.85). Coagulation/flocculation using optimum conditions of pH, PAC, and c-PAM led to the total removal of anionic surfactant and the reduction of more than 95% of COD.
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