摘要
基质是人工湿地中重要的组成部分,不同来源的基质具有显著差异。基质选择是一项复杂的工作,目前仍没有一套系统的方法,用来综合评价基质。基于层次分析法和模糊综合评价法,建立了人工湿地基质综合评价方法,共包含三层、四个大类和十五项指标。以净化城镇生活污水处理厂尾水的人工湿地为研究对象,对沸石、石灰石、凹凸棒黏土、改性钢渣、改性粉煤灰、改性给水厂铝污泥、牡蛎壳、生物炭、轻质骨料和海绵铁十种基质进行综合评价和筛选。结果表明,脱氮除磷效能和使用成本是优化基质选择和影响人工湿地实际性能的主要因素。该基质综合评价方法能够有效的对基质效能进行综合排序,有助于实际工程中人工湿地基质的筛选。
Substrate is an important component of constructed wetlands,and substrates from different sources have significant differences.Matrix selection is a complex task,and there is still no systematic method to comprehensively evaluate the matrix.Based on the analytic hierarchy process and fuzzy comprehensive evaluation method,a comprehensive evaluation method for constructed wetland substrate was established,which includes three layers,four categories and fifteen indicators.Taking the constructed wetland that purifies the tail water of urban domestic sewage treatment plants as the research object,zeolite,limestone,attapulgite clay,modified steel slag,modified fly ash,modified water supply plant aluminum sludge,oyster shells,biochar,light Comprehensive evaluation and screening of ten substrates including quality aggregate and sponge iron.The results show that nitrogen and phosphorus removal efficiency and usage cost are the main factors that optimize substrate selection and affect the actual performance of constructed wetlands.This matrix comprehensive evaluation method can effectively comprehensively rank matrix performance,and is helpful for screening constructed wetland matrix in actual projects.
作者
李清濯
LI Qingzhuo(Changjiang Institute of Technology,Wuhan 430212)
出处
《长江工程职业技术学院学报》
CAS
2023年第4期21-25,53,共6页
Journal of Changjiang Institute of Technology
关键词
人工湿地
基质
层次分析法
模糊综合评价法
constructed wetland
matrix
analytic hierarchy process
fuzzy comprehensive evaluation method
