摘要
某污水处理厂提标工程进水中工业废水比例高达70%,主要为印染、制革和化工废水等,进水可生化性差。设计采用水解酸化-A/O-物化沉淀-连续流砂滤池处理工艺,其中水解酸化和A/O工艺为原有池体改造,通过改造和增设深度处理单元,提高了对COD和氮的去除效率,使出水水质稳定达到了《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。
In the design of upgrading project of a municipal sewage treatment plant, the proportion of industrial wastewater was up to 70%, which mainly contained printing and dyeing wastewater, tannery wastewater, chemical wastewater, etc. The biodegradability of the wastewater was poor. The combination process of hydrolysis acidification - A/O - physieochemical precipitation-activated sand filter was applied in the project. The hydrolysis acidification and A/O process was transformed from the original tanks. It improves the COD removal and nitrogen removal through modification of previous tanks and addition of advanced treatment units. The effluent quality meets the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant（ GB 18918 - 2002 ）.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第24期78-81,共4页
China Water & Wastewater
基金
华东院科技项目开发专项(KY2014-02-06)
关键词
工业废水
印染废水
提标改造
industrial wastewater
printing and dyeing wastewater
upgrading and transforma- tion
