底泥洗脱原位修复污染河道的治理效果

Effect of in-situ sediment remediation technology for treating polluted river course

在凉水河亦庄段治理工程中,通过采用底泥洗脱原位修复技术对河道进行泥水治理,治理后,底泥有机质、总磷TP和总氮TN去除率在78.33%、82.16%和88.40%;水体中TP、氨氮NH3-N、化学需氧量COD和浊度去除率分别为71.82%、67.01%、42.50%和58.97%。底泥洗脱有效去除底泥污染物,提高了水体透明度,水质改善,对恢复凉水河水生态系统具有重要意义。

In the treatment project of Liangshui river's Yizhuang section,muddy water treatment was carried out by using the in-situ sediment remediation technology.After treatment the removal rates of Organic Matter,Total Phosphorus,and Total Nitrogen in the sediment were 78.33%,82.16%,and 88.40%,respectively.The removal rates of Total Phosphorus,Ammonia Nitrogen,Chemical Oxygen Demand,and Turbidity were 71.82%,67.01%,42.50% and 58.97%,respectively.This study suggests that sediment elution can effectively remove sediment pollutants,improve water transparency and water quality,which is of important significance in the restoration of river water ecosystem.