染整技术2025，Vol.47Issue(7)：45-47,3.
阳离子淀粉絮凝剂对靛蓝废水脱色的工艺优化
Process optimization of decolorization of indigo wastewater by cationic starch flocculant
摘要
Abstract
Addressing the challenges of high chromaticity and poor degradability in indigo dyeing wastewater from denim production,utilizing cationic starch flocculant as the core treatment agent,the effects of substitution degree(DS),stirring speed,and pH on decolorization efficiency were systematically investigated through single-factor experiments and orthogonal experiments.Dynamic Zeta potential analysis was integrated to elucidate the dominant role of the charge neutralization mechanism.Results demonstrated that under the optimal conditions of DS=0.14,stirring speed=150 r/min,and pH=8,the decolorization rate exceeded 90%.When the Zeta potential reached neutrality,the charge neutralization effect was most pronounced,and the sludge yield is reduced by 20%compared to traditional flocculants.The modified starch exhibits cost-effectiveness and significant environmental advantages,providing scalable process parameters and theoretical foundations for the green and efficient treatment of indigo-containing wastewater.关键词
阳离子淀粉絮凝剂/靛蓝废水/工艺优化/Zeta电位/电荷中和Key words
cationic starch flocculant/indigo wastewater/process optimization/Zeta potential/charge neutralization分类
资源环境引用本文复制引用
孟雨辰,刘佳明,吴佳林,温忠亮..阳离子淀粉絮凝剂对靛蓝废水脱色的工艺优化[J].染整技术,2025,47(7):45-47,3.基金项目
广东职业技术学院校级科研项目青年项目"淀粉絮凝剂的绿色短流程制备及其在纺织废水中的应用"(XJKY202418) （XJKY202418）
