排水系统水量组成解析中水质特征指标的应用现状及展望

我国城市排水系统提质增效迫在眉睫，排水系统的水量组成解析是"摸清家底"的重要基础工作。由于应用水质特征指标解析排水系统水量的高效性和经济性，近年来有关排水系统的水量组成解析的特征指标选择及计算方法提升得到了大量研究与探讨，其中不同污染来源的特征指标合理选择更是本方法有效应用的核心。为了更好地提升基于特征指标的排水系统水量组成解析的科学性，对其应用现状及存在问题展开综述性讨论。基于对我国排水系统水质特征指标应用现状的思考，结合国内外多个城市的应用实践情况，综合分析了现状排水系统中各类水量来源的特征指标类型、选择依据及长期存在的问题，提出了我国排水系统水量组成解析中有关特征指标的重点研究和发展方向，以期为"十四五"我国排水系统的提质增效提供理论参考。

APPLICATION STATUS AND PROSPECT OF MARKER SPECIES IN WATER COMPOSITION ANALYSIS OF DRAINAGE SYSTEM

It is urgent to improve the quality and efficiency of urban drainage system in China. The analysis of water composition of drainage system is an important basic work in the building of background information frame. Due to the high efficiency and economy of using marker species to analyze the water quantity of drainage system, the selection of marker species and the improvement of calculation method of this method have been studied and discussed in recent years, among which the reasonable selection of marker species of different pollution sources was the core of application of this method. In order to improve the accuracy of water composition analysis of drainage system based on marker species, the application status and existing problems were discussed. Based on the consideration of the application status of marker species of drainage system in China, combined with the application practice of many cities at home and abroad, this paper comprehensively analyzed the types of marker species, basis for their selection and long-term problems in the source apportionment, and put forward the key research and development direction of relevant marker species in the water quantity composition analysis of drainage system in China. It provided an important theoretical reference for improving the quality and efficiency of drainage system in China during the 14th Five Year Plan period.