期刊论文

Effect of seasonal changes on pollutant removal rate of a constructed wetland system established for treatment of municipal sewage

中文

中南林业科技大学学报

1673-923X

2017

37

9

124-128

10.14067/j.cnki.1673-923x.2017.09.021

基金项目：中南林业科技大学青年基金项目（QJ201505） 湖南省教育厅优秀青年项目（158249） 湖南省环境科学与工程重点实验室建设项目：国家科技惠民计划项目（2012GS430203）

本校为第一机构

建立了用以处理城镇污水的“表流A-潜流B-表流C”组合人工湿地(400 t/d)中试系统,监测分析了组合系统净化力的季节性变化规律。结果表明:组合系统出水的5项指标年均值达到了国家城镇污水处理厂污染物排放[GB 18918—2002]一级A标准,A、B、C单元之间净化力差异显著,其中B单元对系统净化力的贡献率最高;组合系统COD去除率存在显著的季节性差异,冬季COD去除率明显低于其他季节;组合系统氮、磷去除率季节性差异不显著,原因是B单元对系统氮、磷去除率贡献大,而其氮、磷去除率受季节影响小。要克服季节温度变化对组合系统净化力的影响,有必要进一步增强B单元的吸附过滤功能和提高系统冬季的生物活性。...

A pilot constructed wetland system consisting of a combination of ＂surface-flow A-subsurface flow B-surface flow C＂ units was established for treatment of municipal sewage. The effect of seasonal temperature change on the pollutant removal rate of the pilot system was monitored. The results showed that the annual average effluent quality of the pilot system met the 1st grade A of the national discharge standards for pollutants for municipal wastewater treatment [GB 18918-2002]. There were significant differences in treatment efficiency among ...