Preparation, Characterization of Coal Ash Adsorbent and Orthogonal Experimental Rsearch on Treating Printing and Dyeing Wastewater
Using high temperature activated sodium flying ash and carboxymethyl chitosan as raw material to prepare carboxymethylchitosan wrapping fly-ash adsorbent(CWF),combined with iron-carbon micro-electrolysis treatment of simulated and actual printing and dyeing wastewater.The conditions for obtaining are from the literature: the best condition for CWF to treat simulated printing and dyeing wastewater pretreated with iron-carbon micro-electrolysis is that the mixing time is 10min,the resting time is 30 min,pH=6,and the adsorbent dosage is 0.75 g/L.The results showed that COD removal efficiency and decoloration rate were above 97%,and turbidity removal rate was over 90%.The optimum dyeing conditions were used to treat the dyeing wastewater.The decolorization rate was 97.30%,the removal efficiency of COD was 92.44%,and the turbidity removal rate was 90.37%.
Qingyu Wang Lingfeng He Liang Shi Xiaogang Chen Xin Chen Zizhen Xu Yongli Zhang
School of Environmental and Chemical Engineering,Foshan University,Foshan,China Foshan Environment Investment Co.,Ltd.,Foshan,China
国际会议
上海
英文
1-5
2017-12-28（万方平台首次上网日期，不代表论文的发表时间）