The elimination of Zn2+ in wastewater by enhanced coagulation was studied with Crosslinked Starch-graft-poly Acrylamide-co-sodium Xanthate (CSAX) cooperating with zeolite. The effects of dosage of CSAX and the particle size of modified zeolite on removal of Zn2+ were tested. The experiments results were optimized by introducing the Box-Behnken method. The influence of experimental factors were examined in this order: CSAX dosage >modified zeolite >particle size of modified zeolite. The model equation and experimental data correlated well. The optimum reaction conditions were: 6.4mLCSAX and 12.5mg modified zeolite (with particle size of 60mesh). The removal of Zn2+ reached 90% under the optimum conditions, which was consistent with the 89% predicted by the model equation.
王社宁, 席启斐, 常青, 伏小勇, 陈学民. 响应面法优化沸石协同CSAX混凝消除含锌废水中的Zn2+[J]. 中国环境科学, 2016, 36(11): 3335-3340.
WANG She-ning, XI Qi-fei, CHANG Qing, FU Xiao-yong, CHEN Xue-min. Elimination of Zn2+ in wastewater by coagulation with CSAX cooperating with zeolite and improved by Response Surface Methodology. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(11): 3335-3340.
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