Abstract: Considering that conventional micro-electrolysis materials are only available for acidic wastewater,the iron & carbon micro-electrolysis materials have been modified and used for the treatment of simulated printing and dyeing wastewater containing methyl orange,and the optimal technological parameters confirmed. The results show that when the pH are in the ranges of 4-5 and 11-12,the degradation effect on methyl orange is comparatively good, the optimal reaction time is 3 h,and the optimal dosage is 340 g/L. Dyeing & printing desizing wastewater has been used for conducting contrast experiments. The results show that the improvement of the new type of micro-electrolysis materials in aspects of COD removing rates and biodegradability are both remarkably superior to commercial microelectrolysis materials. After pretreatment using new micro-electrolysis materials,the B/C values is improved by 5 times.

Key words: micro-electrolysis, printing and dyeing wastewater, modification of micro-electrolysis materials

摘要： 针对传统微电解材料只适用于酸性废水的局限，对铁碳微电解材料进行改性，用于甲基橙模拟印染废水的处理，确定了处理的最佳工艺参数。结果表明：新型微电解材料在pH为4～5、11～12内对甲基橙均有较好的降解效果，最佳反应时间为3 h，最佳投加量为340 g/L。采用印染退浆废水进行对比实验，结果表明：新型微电解材料在COD去除率和可生化性提高方面均明显优于市售微电解材料，经新型微电解材料预处理后B/C提高了近5倍。

关键词: 微电解, 印染废水, 微电解材料改性

CLC Number: 

• X703