汾江河水经水生植物净化后残留有机物的分析

The analysis about organic residue in Fenjiang river purified by some hydrophytes

本文研究了9种水生植物净化汾江河水的效果,通过分析经过处理后河水中残留的有机物,发现狐尾藻、豆瓣菜、大、金鱼藻、伞草等对河水中有机污染物的净化能力较强,COD降解率均能达到50%以上。特别是经狐尾藻净化后,COD降解率最高可达89.08%,且DO回升较好。

In this paper, the efficiency of purifying Fenjiang river with 9 kinds of hydrophytes is studied respectively. Through analyzing the organic residue, we discovered that the efficiency of decreasing organic with the following hydrophytes is excellent: Myriophyllum Linn.Sp, Nasturtium officinale R.Br. Pistia stratiotes linn, Ceratophyllum demersum Linn and Cyperus alternifolius L.sp. flabelliformis (Rottb.) Kükenth. The degrading rate of COD by the hydrophytes comes to more than 50% and the most degrading rate of COD by Myriophyllum Linn.Sp comes to 89.08% while the DO value increases relatively fast.