不同基质人工湿地对校园生活污水净化效果的研究  

Effects of Constructed Wetlands with Different Substrates on the Purification Effect of Campus Domestic Sewage

作　　者：魏驰原 任露瑶 WEI Chiyuan;REN Luyao(Nanjing Tech University Pujiang Institute,Nanjing 211200,China)

机构地区：[1]南京工业大学浦江学院,江苏南京211200

出　　处：《环境影响评价》2023年第5期100-106,共7页Environmental Impact Assessment

基　　金：2021江苏省高等学校自然科学研究面上项目(21KJD560006)。

摘　　要：目前大多所研究的单一基质类型人工湿地无法到达高效脱氮的目的,组合填料所发挥的协同作用对于污水的深度净化尤为重要。本研究构建了基于火山岩、无烟煤和火山岩-无烟煤混合填料的人工湿地,探究了单一填料类型与混合填料类型人工湿地对校园实际生活污水的水质净化效果。经试验研究发现火山岩-无烟煤混合基质在三种类型中对氨氮、TN的去除效果最好,去除率分别为98.69%和98.43%。各基质对TP的去除能力差别较大,其中火山岩基质去除效果最优。火山岩基质对COD去除率最高(96.80%),但各基质对COD去除均有较好效果,火山岩-无烟煤混合基质去除率为93.97%,无烟煤为82.40%。在进水水质及水量相同的条件下,由试验得出最优水平组合为火山岩-无烟煤混合基质。At present,most of the constructed wetlands with single matrix type can not achieve the goal of efficient nitrogen removal,and the synergistic effect of combined fillers is particularly important for the deep purification of sewage.In this study,constructed wetlands based on volcanic rock,anthracite and volcanic rock anthracite mixed fillers were constructed,and the purification effects of single filler type and mixed filler type constructed wetlands on the actual domestic sewage of the campus were explored.The results show that the mixture of volcanic rock and anthracite has the best removal effect on ammonia nitrogen and TN,and the removal rates are 98.69%and 98.43%,respectively.The removal ability of TP varies greatly among different substrates,and the removal effect of volcanic rock substrate is the best.The COD removal rate of volcanic rock matrix is the highest(96.80%),but all the substrates have a good effect on COD removal,and the removal rate of volcanic rock and anthracite mixture matrix is 93.97%and 82.40%.Under the condition of the same influent water quality and quantity,the optimal horizontal combination is the mixed matrix of volcanic rock and anthracite.

关 键 词：基质 人工湿地 校园污水 

分 类 号：X703[环境科学与工程—环境工程] X173