Al/C微电解预处理印染废水研究  

Study on the pretreatment of printing and dyeing wastewater by Al/C micro-electrolysis process

作　　者：赵淑萍[1] 王中琪[1] 张志军 

机构地区：[1]西南科技大学四川省环境工程自控技术重点实验室,四川绵阳621010 [2]桑德集团,北京101100

出　　处：《工业水处理》2013年第3期61-64,共4页Industrial Water Treatment

摘　　要：探讨了微电解技术在碱性废水处理中的应用,进行了Al/C微电解对印染废水的预处理实验研究。通过单因素实验和正交实验考察了进水pH、铝屑投加量、铝炭质量比和反应时间对CODCr去除率的影响。结果表明:当原水CODCr为8 986 mg/L,pH为12.06,铝屑投加量为100 g/L,铝炭质量比为1∶1.5,反应时间为2 h时,可得到较好的处理效果,CODCr去除率达42.22%;废水B/C由原来的0.15提高至0.46,可生化性大幅提高,为后续生物处理创造了良好的条件。通过SEM分析,证实了该反应过程与微电解反应原理相吻合。The application of micro-electrolysis technology to the treatment of alkaline wastewater is discussed. Alu- minum-carbon micro-electrolysis technology used for pre-treating printing and dyeing wastewater has been studied. The factors that affect the CODc, removing efficiency, including influent pH, AI crumbs dosage, Al/C mass ratio and reaction time are investigated by single-factor experiments and orthogonal tests. The results show that when raw water CODc, is 8 986 mg/L,pH 12.06 ,Al crumbs dosage 100 g/L,Al/C mass ratio 1：1.5 ,and reaction time 2 h ,good resuits from the wastewater treatment can be obtained. The removing rate of CODc, reaches 42.22%, and wastewater B/ C is increased from 0.15 to 0.46. Thus ,the biodegradability has been improved obviously,which creates good condi- tions for subsequent biochemical treatment. Scanning electron microscope （SEM） is used for observing the surface of aluminum, and it is found that the reaction process is identical with micro-electrolysis reaction principle.

关 键 词：印染废水 铝炭微电解 可生化性 

分 类 号：X703.1[环境科学与工程—环境工程]