小型泄水建筑物对城市内河污染的影响

The small release building influences on urban inland river pollution

通过对城市内河小型泄水建筑物——溢流堰上下水体中的DO,高锰酸盐指数,TN,TP的长期监测,分析比较发现:溢流堰可以显著增加水体DO、去除水中耗氧有机物、在一定程度上降低水体中的氮、磷含量,对城市内河水体能够起到一定的净化作用。

Through long period monitoring DO,kali permanganate index,TN,TP in overflow weir water of urban inland river small release building,the analyzed comparison found that overflow weir can notable increase DO in water,remove oxygen consumption organic mater and reduce N and P content in water at a certain degree,which had some purification effect to urban inland water.