摘要
采用混凝沉淀-两段接触氧化法处理制革区综合制革废水,经过半年多稳定运行,系统COD去除率达到96%,硫化物去除率达到99.5%,处理后出水的各项指标完全达到了国家《污水综合排放标准》(GB8978-1996)制革行业废水二级标准。对废水处理系统的工艺作了简单介绍,对系统调试、运行结果进行了分析与总结。
To treat the tanning wastewater combined process by coagulation & sedimentation and two-stage biological contact oxidation process is used in a pratice of industrial area.After more than six months' stable running,the removal ratio of COD(Cr) and sulphide are (96%) and (99.5%) respectively,and the effluent pollutant concentrations meet the second level standard about tanning industry stipulated in Wastewater Drainage Comprehensive Standards in China(GB 8978-1996).The treating process is introduced,and the final running result is analyzed and generalized.
出处
《城市环境与城市生态》
CAS
CSCD
北大核心
2004年第5期40-41,共2页
Urban Environment & Urban Ecology
关键词
制革废水
混凝沉淀
两段接触氧化
tanning wastewater
coagulation & sedimentation
two-stage biological contact oxidation process
