微生物强化不同基质垂直流人工湿地处理模拟初期雨水TN、NH_(3)-N试验研究  

Experimental Study on Microbiologically Enhanced Constructed Wetland Treatment of TN and NH_(3)-N in Simulated Initial Rainwater

作　　者：吴雪军 何孜成 张玉浩 查涛涛 孙妍 黄博宇 WU Xuejun;HE Zicheng;ZHANG Yuhao;ZHA Taotao;SUN Yan;HUANG Boyu(Nanchang Urban Planning&Design Institute,Nanchang 330013,China;School of Civil Engineering&Architecture,East China Jiaotong University,Nanchang 330013,China;Jiangxi Urban-rural Planning and Municipal Design&Research Institute,Nanchang 330095,China)

机构地区：[1]南昌市城市规划设计研究总院集团有限公司,南昌330038 [2]华东交通大学土木建筑学院,南昌330013 [3]江西省城乡规划市政设计研究总院有限公司,南昌330095

出　　处：《能源研究与管理》2024年第3期71-78,97,共9页Energy Research and Management

基　　金：南昌市城市规划设计研究总院集团有限公司课题(KY2023-01,KY2023-02);国家自然科学基金资助项目(61872141)。

摘　　要：针对砂石基质垂直流人工湿地处理初期雨水时,存在TN和NH_(3)-N去除效率低的问题,构建了砂石、沸石基质的垂直流人工湿地系统,接种驯化后的活性污泥,重点关注微生物强化不同基质的垂直流人工湿地处理模拟初期雨水TN、NH_(3)-N的去除效果,并探究微生物强化人工湿地的微生物群落结构。试验结果表明:采用沸石作为湿地基质的人工湿地脱氮能力强,在接种污泥后,砂石基质的人工湿地对总氮、氨氮的平均去除率分别为63.63%~75.09%、56.49%~72.18%,其平均出水质量浓度为3.76~5.36、2.83~4.57 mg/L。接种污泥后的湿地系统内微生物群落具有较高的多样性和相对丰度。反硝化菌门(Patescibacteria)在湿地系统中具有较高的丰度,有助于提高人工湿地系统的脱氮功能。Aiming at the problems of low removal efficiency of total nitrogen and ammonia nitrogen in vertical flow constru-cted wetland with gravel substrate when treating initial rainwater.A vertical flow constructed wetland system with gravel or zeolites substrates was constructed and inoculated with domesticated activated sludge,focusing on the removal effects of microbial-enhanced vertical flow constructed wetland with different substrates on TN,NH_(3)-N,and to investigate the structure of microbial community in microbial-enhanced constructed wetland.The results showed that the constructed wetland using zeolite as the wetland substrate had strong denitrification ability.After inoculation with sludge,the average removal rates of total nitrogen and ammonia nitrogen in the constructed wetland with sand and gravel substrate were 63.63%-75.09%and 56.49%-72.18%, respectively. The average effluent concentrations were 3.76-5.36 and 2.83-4.57 mg/L. The microbial community in the wetland system after sludge inoculation had high diversity and relative abundance. The Patescibacteria phylum had a high abundance in wetland systems, which helped to improve the denitrification function of constructed wetland systems.

关 键 词：垂直流人工湿地 初期雨水 微生物强化 脱氮 

分 类 号：X523[环境科学与工程—环境工程]