人工湿地污染物降解模型研究

近年来，人工湿地作为一种绿色、高效的污水处理技术，得到了长足发展和广泛应用。文章综述了人工湿地数学模型的研究进展，重点介绍国内外已成功应用的“箱式”模型和基于过程的模型的开发情况。同时分析了这两类模型的优缺点。建模的目的在于深入理解湿地内部污染物去除过程，从而优化设计参数，指导人工湿地在国内的实践应用。但现阶段，人工湿地去除污染物的内部机制尚未得到定量化，可见湿地模型的未来发展趋势在于对湿地内部过程的深入理解。

Research on Mathematic Model of Pollutant Removal in Constructed Wetland

Constructed wetlands （CWs） for wastewater treatment have been recognized as an effective means of ＂green tech nology＂ for wastewater treatment and have evolved substantially over the last decades. This paper reviews the numerous mathe matical models ranging from simple ＂black - box＂ models to more complex ＂processed - based＂ model. The study analyzed the advantages and disadvantages of these two models respectively. The main objective of the modeling work is to better understand the process in CWs and optimize design criteria, guide the practice application of CWs in the domestic. It can be seen that peo ple still lack of quantitative understanding about inherent mechanism of pollutants removal in constructed wetland. Thus it is evi dent that future development in wetland modeling technology will depend on improved scientific knowledge of internal treatment mechanisms.