净水技术2024，Vol.43Issue(6)：9-19,11.DOI:10.15890/j.cnki.jsjs.2024.06.002
人工湿地深度处理市政尾水研究进展
Research Progress on Constructed Wetland for Advanced Treatment of Municipal Tailwater
摘要
Abstract
Large discharge of tail water from municipal wastewater treatment plants at home,low reuse rate and high concentration of nitrogen and phosphorus are the main causes of water eutrophication.High concentration of nitrogen and phosphorus in tail water can easily lead to the proliferation of plankton such as algae in water,which can destroy the balance of oxygen consumption and reoxygenation and worsen the water quality.Nitrate nitrogen is the main nitrogen in tail water,and its removal needs organic matter as electron donor,while the C/N of tail water is low,which makes it difficult to purify effectively by conventional process and needs further advanced treatment.Therefore,based on the characteristics of municipal wastewater treatment plant tail water,this paper summarizes the ways to strengthen the efficiency of advanced treatment of municipal tail water by constructed wetland through literature induction,and mainly analyzes its strengthening mechanism from three aspects:substrate optimization,adding slow-release carbon source and process optimization,and puts forward the key and difficult problems in the research of advanced purification of municipal tail water by constructed wetland,which provides some ways to improve the quality of municipal tail water and protect the water ecological environment.关键词
人工湿地/市政尾水/氮磷/低C/N比/深度处理/强化途径Key words
constructed wetland/municipal tailwater/nitrogen and phosphorus/low ratio of C/N/advanced treatment/enhancement approach分类
资源环境引用本文复制引用
纪伟,朱洺娴,张舒,王文杰,范秀磊..人工湿地深度处理市政尾水研究进展[J].净水技术,2024,43(6):9-19,11.基金项目
国家自然科学基金青年项目(52000153) （52000153）
江苏省高等学校基础科学(自然科学)研究重大项目(22KJA610005) （自然科学）
江苏省水利科技项目(2021077) （2021077）
