焦化厂生化出水电解脱色工艺及其机理的初步研究  

Preliminary study on the electrolytic decoloration technology and its mechanism for coking-plant wastewater

作　　者：马前[1] 梅滨[2] 顾学喜[1] 倪亚明[1] 

机构地区：[1]同济大学生命科学与技术学院,上海200092 [2]上海医疗器械高等专科学校,上海200093

出　　处：《环境污染治理技术与设备》2005年第8期18-22,共5页Techniques and Equipment for Environmental Pollution Control

基　　金：高等学校博士学科点专项科研基金资助(20010247004)

摘　　要：针对焦化废水经萃取(蒸氨)脱酚和生化处理后的出水水质的特点,研究用铝板作为电极电解该废水的脱色效果,研究了废水pH、电解槽电压、时间等因素对其色度去除率的影响。结果表明,最佳工艺参数为:pH=4、电解槽电压=10V、时间=30min,此时色度去除率可达93.6%,COD的去除率也可以达到61.78%。采用GCMS分析了电解前后废水中的有机物成分,探讨了形成高色度水质的原因、有机物的去除及脱色机理。The decoloration effect of the coking-plant wastewater by aluminium electrode,in allusion to the characteristic of its water quality after extraction （ braising nitrogen）, decrease of hydroxybenzene, biochemical treatment and the influences of pH, electrobath voltage,time on the decloration are studied. As a result,the best technical parameters are pH = 4, electrobath voltage = 10 V,time = 30 min ;the decoloration is 93.6% , the eradication of COD is 61.78%. The organic composition is analysed with GC-MS before the electrolysis and after it. The causes of the color of wastewater and the decoloration and the removal of organic substance of the mechanism are discussed.

关 键 词：焦化废水 电解絮凝 色度 铝板 

分 类 号：X784[环境科学与工程—环境工程]