二龙山水库水环境保护研究

Approach to the Protection of Drinking-water Resource in Erlongshan Reservoir

文章在对二龙山水库水源地环境现状进行系统分析的基础上 ,划分水源地保护区 ,确定水质保护目标 ;并以此为依据 ,对水源地的水环境容量及主要污染物削减量进行了分析和研究 ,提出了二龙山水库水源地主要污染物总量控制目标及保护对策。

Erlongshan Reservoir is one of the six biggest centralized surface drinking-water resources in the Liao River valley, so it is necessary to assess present water quality pollution status thoroughly, to carve up protection zone reasonably, to calculate environment capacity of reservoir water scientifically, and to enact diminishing scheme of pollutants and measures of environment protection. Based on the systematic analyses on present environmental status of Erlongshan drinking-water resource site, the paper partitions the function regions and establishes protection aim of water quality. Based on this, environmental capacity and main pollutants minifying amount of drinking-water resource site are investigated, and total amount control aim and protective countermeasures on drinking-water resource in Erlongshan Reservoir are presented in the paper. In 2005, if water quality standard III for the Erlongshan Reservoir is achieved, the capacities of COD and NH^+_4-N are 1 325 t/a and 1 044 t/a, respectively.