“十一五”期间黄河宁夏段水环境质量状况变化分析

"Eleven five" in the upper reaches of the Yellow River river basin water pollution control planning for the Yellow River Ningxia section water environment quality improvement and change analysis

本文对"十一五"期间黄河流域宁夏段水环境质量状况及变化分析,《"十一五"黄河中上游流域水污染防治规划》项目的实施对黄河流域宁夏段水污染防治起到了积极作用,有效改善了黄河流域宁夏段水质状况"。十一五"期间全区COD排放量比2005年下降14.9%,黄河宁夏段高锰酸盐指数浓度比2005年下降28.5%,实现排放量和浓度双下降。

This article on 'eleven five' period in Ningxia section of the Yellow River river basin water environment quality and analysis of change','eleven five'in the upper reaches of the Yellow River riv- er basin water pollution prevention and control planning'the implementation of the project of the Yellow River River Basin in Ningxia water pollution control has played a positive role, can effectively improve the water quality in the Yellow River River Basin in Ningxia'. Eleven five' during the COD emissions in 2005 decreased14.9%, the Yellow River Ningxia segment of permanganate index concentration than in 2005 fell 28.5%, achieve the emission and concentration double down.