人工湿地温室气体排放及控制措施研究进展

Research Progress on Greenhouse Gas Emissions and Control Measures of Constructed Wetlands

人工湿地作为一种环境友好型的污水处理工艺,以低成本、低能耗的优势获得了大规模的应用。由于人工湿地在处理污水时释放出温室气体可能会减弱其生态效益以及作为一种可持续污水处理工艺的优越性,研究人工湿地在污水处理过程中温室气体的产生机理、影响因素并提出控制措施就显得尤为重要。本文从基质、植物及环境因素等多个方面探究人工湿地内温室气体的排放及影响因素,并从工程措施和运行管理两个方面提出可能的优化方案,旨在为人工湿地达到最优的污染物处理效果和最少的温室气体排放提供参考。

As an environment friendly wastewater treatment process,constructed wetland has obtained large-scale applications with the advantages of low cost and low energy consumption.As constructed wetland releases greenhouse gases when treating sewage,it may weaken its ecological benefits and its superiority as a sustainable wastewater treatment process.It is particularly important to study the generation mechanism and influencing factors of greenhouse gas in the wastewater treatment process of constructed wetlands and to propose control measures.This article explores greenhouse gas emissions and influencing factors in constructed wetlands from multiple aspects such as substrates,plants,and microorganisms,and proposes possible optimization schemes from two aspects of engineering measures and operation management,aiming to provide a reference optimal pollutants and minimum greenhouse gas emissions for constructed wetlands.