王沥东 1冯万里 1陈晓远 1杨聿航 1蔡兰坤 1张乐华1
作者信息
- 1. 华东理工大学资源与环境工程学院国家环境保护化工过程环境风险评价与控制重点实验室,上海200237
- 折叠
摘要
Abstract
The liquid wastes from olaquindox production were treated by suspension crystallization method.The effects of ice formation rate (the volume ratio of melt water to raw water) on removal of COD,ammonia nitrogen,TN and conductivity were studied.Under the condition of ice formation rate of the fist-stage freezing 45％,the removal rates of COD,ammonia nimogen,TN and conductivity of the 3-stage effluent were 99.4％,98.7％,98.5％ and 98.2％ after three stage freezing treatment,and the concentration ratio of COD,anmnonia nitrogen and TN of the first-stage concentrate were 1.6,1.5and 1.5,respectively;Under the condition of ice formafion rate of the first-stage freezing 80％,the removal rates of each stage effluent were decreased,and those of the 3-stage effluent were 98.6％,983％,97.1％ and 95.9％,respectively,buttheconcentmtionratioofCOD,ammonianitrogenandTNofthefirst-stage concentrate were2.7,2.2and2A,which were significantly increased.Combustion value of the first-stage concentrate was 7 449 J/g,which meant it could maintain comlustion in the incineration process by its own heat.No addition of auxiliary fuel made the incineration cost reduced.关键词
喹乙醇生产废液/成冰率/冷冻浓缩/悬浮结晶法/热值Key words
olaquindox production liquid wastes/ice formation rate/freeze concentration/suspension crystallization method/combustion value分类
资源环境
