摘要
采用人工湿地/渗透性反应墙组合工艺(CW/PRB)和人工湿地(CW)处理受污染河水,考察了两者对COD、TN、TP等污染物的去除效果,分析了PRB的强化作用及其机理。结果表明,CW/PRB对COD、TN、TP的平均去除率分别为55.09%、42.15%、82.91%,与CW系统相比,去除率分别提高了34.29%、31.61%和65.85%。可见,CW/PRB弥补了CW对氮、磷去除效果欠佳的不足,提高了对污染河水的净化效果。
The combined process of constructed wetland and permeable reactive barrier (CW! PRB ) and constructed wetland (CW) were respectively used to treat polluted river water, the removal ef- ficiencies of pollutants like COD, TN and TP were investigated, and the enhanced effect and mechanism of PRB were analyzed. The results showed that the removal rates of COD , TN and TP by the CW/PRB process were 55.09%, 42.15% and 82.91% respectively, which were increased by 34.29%, 31.61% and 65.85% respectively compared with the single CW. It was concluded that the CW/PRB process could make up for the deficiency of the single CW in removal of nitrogen and phosphorus and improve the purification efficiency of the polluted river water.
出处
《中国给水排水》
CAS
CSCD
北大核心
2016年第1期1-4,共4页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2012ZX07206-002)
关键词
人工湿地
渗透性反应墙
污染河水
净化效果
constructed wetland
permeable reactive barrier
polluted river water
purification efficiency