基于污染负荷计算分析的茅洲河流域水环境治理效果评估

Evaluation of the Effectiveness of Water Environment Treatment in Maozhou River Basin based on Pollution Load Calculation and Analysis

为定量评价茅洲河水环境综合治理效果,本文根据2016—2020年茅洲河水质监测数据、流量和降雨资料,计算了该时期内茅洲河污染负荷总量,并对点源、面源和内源污染负荷分别进行了计算。结果表明,随着茅洲河流域相关水环境治理工程的实施,点源污染在污染负荷总量中的占比大幅降低,而面源污染在污染负荷总量中的占比逐年增加;经过治理,至2020年已削减89.3%的污染负荷总量,其中点源负荷削减比例达到97%左右,面源削减比例达到80%,内源污染基本全部消除,说明茅洲河综合整治项目治理效果显著。

In order to quantitatively evaluate the comprehensive effect of water environment treatment in Maozhou River,this paper calculates the total pollution load of Maozhou River during 2016—2020 based on the water quality monitoring data,flow,and rainfall data.The point source,non-point source,and internal source pollution loads are separately calculated.The results show that with the implementation of relevant water environment treatment projects in Maozhou River Basin,the proportion of point source pollution in the total pollution load has decreased significantly,while the proportion of non-point source pollution has increased year by year.By 2020,89.3%of the total pollution load has been reduced after treatment,with a reduction of about 97%in the point source load and 80%in the non-point source load,and the internal source pollution has been basically eliminated,indicating a significant improvement in the comprehensive effect of Maozhou River integrated treatment project.