虚拟治理成本法在水环境污染损害化评估中的实践应用与分析

Practical Application and Analysis of Virtual Treatment Cost Method in Assessment of Water Environment Pollution Damage

以某污水处理厂污水处理设施故障而引起的水污染物超标排放案件为例,运用虚拟治理成本法对该污水处理厂违法排污造成的生态损害进行了量化评估。从污染物排放总量核算、污水单位治理成本确定及相关系数的选取等方面进行了详细的介绍,通过计算得出了该案例所涉及的生态环境损害量化的数额,同时建议:在开展类似环境损害评估工作中应优先采用实测法来确定污染物排放总量,单位治理成本的确定不但要充分考虑受污染水体中的污染物种类及数量,同时还要结合区域内污水处理厂主要处理工艺,相关调整系数的确定要依据违法行为案发地所处区域的生态敏感性及污染物超标倍数来确定。

Taking the case of excessive discharge of water pollutants caused by the failure of sewage treatment facilities in a sewage treatment plant as an example,this paper uses the virtual treatment cost method to quantitatively evaluate the ecological damage caused by the illegal discharge of sewage in the sewage treatment plant.The total amount of pollutant discharge accounting,the determination of sewage unit treatment costs and the selection of correlation coefficients are introduced in detail.Finally,the quantified amount of ecological environment damage involved in this case is calculated.At the same time,it is suggested that in carrying out similar environmental damage assessment work,the actual measurement method should be used to determine the total amount of pollutant discharge.The determination of unit treatment cost should not only fully consider the types and quantity of pollutants in the polluted water body,but also take into account the sewage in the area.The main treatment process of the treatment plant,and the determination of the relevant adjustment factors should be determined according to the ecological sensitivity of the area where the illegal act occurred and the multiple of the pollutant exceed the standard.