摘要：
以浙江某制膜公司的生产废水为研究对象,采用曝气微电解对含DMF、DMAC等强有机溶剂的制膜废水进行预处理。结果表明,曝气微电解最佳pH为2~3,最佳停留时间为120 min,其COD去除率较普通微电解工艺至少提高5%。串联曝气微电解反应器处理中COD去除率存在二次跃迁曲线。历时30 d的稳定运行结果表明,当进水COD为10 000～20 000 mg/L时,COD去除率达52%以上,可以使原水B/C由0.22提高到0.45以上。
关键词:
制膜废水,
曝气,
微电解,
铁炭微电解
Abstract:
The wastewater in a membrane-making Co.,in Zhejiang has been studied.Aeration/micro-electrolysis method is used for treating the membrane-making wastewater which contains strong organic solvents,such as DMF,DMAC and so on.The results show that the best pH of aeration/micro-electrolysis is between 2 and 3,and HRT is 120 min,and the removal rate of COD is at least 5% higher than that by ordinary micro-electrolysis technology.The COD removal rate in the combined aeration/micro-electrolysis reactor has a 2nd transition curve.The investigation on the stable running which lasted for 30 d shows that when the influent COD changes between 10 000-20 000 mg/L,the COD removal rate is more than 52%,and the B/C could be improved from 0.22 to 0.45 above.
Key words:
membrane-making wastewater,
aeration,
micro-electrolysis,
iron-carbon micro-electrolysis
中图分类号:
洪飞宇, 李德生, 韩丹, 王晓伟. 曝气/铁炭微电解预处理制膜废水试验研究[J]. 工业水处理, 2009, 29(4): 42-45.
Hong Feiyu, Li Desheng, Han Dan, Wang Xiaowei. Study on the pretreatment of membrane-making wastewater by aeration/iron carbon micro-electrolysis[J]. INDUSTRIAL WATER TREATMENT, 2009, 29(4): 42-45.