城市黑臭水体的普适性评价模型研究

A Universal Evaluation Model for Urban Black-odor Rivers

基于对现有黑臭评价模型的科学分析和比较,发现多因子加权指数模型对不同污染水体具有较好的包容性,适用范围广,具备普适性评价模型的特征。在文献报道的水质监测数据的基础上,研究多因子加权指数模型对沈阳卫工河、沈阳细河和常州大通河的评价效果,结果表明:多因子加权指数模型能够客观、准确地反映不同河流的黑臭程度,与黑臭水体的实际情况相符。该模型计算简单,科学全面,具备普适性,适合作进一步推广和应用。

According to the scientific comparison and analysis of existing black-odor evaluation models,large portions of themodelshave limitations more or less and therefore are not appropriate as universal models.By comparison,multifactor weighted index model was identified to possess a good adaptability to different types of polluted waters,which had a wide range of applications.To further extend the applications,multifactor weighted index model was employed to analyze and evaluate the water quality of Weigong River and Xi River in Shenyang,as well as Datong River in Changzhou on the basis of the water quality monitoring data quoted from the literature.Multifactor weighted index model was then validated by comparing the evaluation results with the actual situations as well as the evaluation results of models used in the literatures.The results indicated that multifactor weighted index model could reflect the real degree of black-odor and present a good adaptability to the three different regional rivers.Thus,it was considered that,with the advantage of simplicity,accuracy anduniversality,multifactor weighted index model deserved further popularization and application.