人工湿地-生态塘系统净化公路路面径流综述

Review of Using Constructed Wetland and Ecological Pond System for Road Runoff Treatment

为解决公路路面径流所携带的污染物对环境造成的污染,提出以人工湿地-生态塘系统来处理路面径流的观点。路面径流具有污染物成分复杂,污染负荷和水力负荷变化大以及可生化性差的特点,常规处理工艺难以对其进行有效净化。针对公路路面径流水质水量特点以及人工湿地-生态塘系统污染物处理特性和效果,对利用人工湿地-生态塘系统净化公路径流的可行性进行了分析。结果表明,人工湿地-生态塘系统可以有效去除路面径流污染物,是处理路面径流可选择的工艺。

To solve the environment pollution caused by road runoff that carries complex pollutants, the concept of using constructed wetland and ecological pond system to treat the road runoff is put forward. The road runoff contains complicated components and its biodegradability is poor, its pollution load and hydraulic load change randomly. Because of these characteristics, the conventional biodegradation treatment processes can be hardly used. Based on the water quality and quantity characteristics of highway surface runoff, as well as the treatment characteristics and the effect of pollutant in the constructed wetland and ecological pond system, the feasibility to depurate highway runoff using the constructed wetland and ecological pond system is analyzed. The result shows that the constructed wetland and ecological pond system could be an alternative for treatment of road runoff, which could remove the pollutants of road runoff effectively.