摘要
通过设置缺氧区、分区种植水生植物构建微生物与多种水生生物共同作用的缺氧/好氧生物塘,对达到一级A排放标准的污水处理厂尾水进行中试规模的深度处理研究。结果表明,缺氧/好氧生物塘对污水处理厂尾水的处理效果较好,出水DO浓度明显升高,平均值为3.67mg/L;对COD和硝酸盐氮的平均去除率分别可达到58.25%和37.74%,出水浓度可达到地表Ⅲ类水质标准;对总磷的平均去除率为35.66%,出水浓度可达到地表Ⅴ类水质标准。缺氧/好氧生物塘对污染物的去除是微生物降解与生物链摄取共同作用的结果。
An anoxic/oxic biological pond combining microorganisms with aquatic orgamsms was developed by setting anoxic zone and planting hydrophytes to perform advanced treatment of effluent from a sewage treatment plant which met the first class A criteria. The results showed that the anoxic/oxic bio- logical pond achieved high treatment efficiency. The dissolved oxygen in the effluent was significantly in- creased, reaching an average of 3.67 mg/L. The average removal rates of COD and nitrate were 58.25% and 37.74%, respectively, and their effluent concentrations met the m criteria specified in the Environ- mental Quality Standards for Surface Water. The average removal rate of TP was 35.66% , and its efflu- ent concentration met the V criteria specified in the Environmental The removal of pollutants in the anoxic/oxic biological pond resulted al degradation and biological chain intake. Quality Standards for Surface Water. from the combined action of microbi-al degradation and biological chain intake.
出处
《中国给水排水》
CAS
CSCD
北大核心
2013年第17期85-88,共4页
China Water & Wastewater
基金
深圳市基础研究计划项目(JC201005280676A)
