摘要
研究了以锰砂为填料的垂直流人工湿地处理钢铁废水的效果,试验结果表明:湿地系统对CODCr、Fe、Mn、TP、NH3-N的平均去除率分别为52%、97%、94%、95%和83%。夏季湿地对各种污染物的去除效果最好。HRT在2～5d时,其改变对污染物的去除影响很小,低温条件对NH3-N的去除效果有一定的影响。对以Fe、Mn、浊度的去除为目的的人工湿地而言,在南方的冬季仍可达到良好效果。
A pilot constructed vertical-flow wetland with manganese greensand media was researched for wastewater treatment in steel industry. The results showed that the average removal efficiency of CODer, Fe, Mn, TP and NH3-N in the wetland system were 52%, 97%, 94%, 95% and 83 %respectively. The best performance was achieved in summer. The change of HRT showed little effect on the removal of pollutants as it changed from 2 to 5 days. The removal of NH3-N was influenced by low temperature. As conclusion, we believed that constructed wetland could remove Fe, Mn and turbidity satisfactorily even in winter in south part of this country.
出处
《给水排水》
CSCD
北大核心
2007年第12期58-63,共6页
Water & Wastewater Engineering
关键词
人工湿地
锰砂
垂直流
钢铁废水
Constructed wetland
Manganese greensand
Vertical-flow
Wastewater in steel industry
