摘要
以江阴市新桥镇人工湿地系统为研究对象,采用生态生化组合湿地工艺处理污水处理厂尾水,研究生物-生态组合湿地的运行状况和小城镇污水处理厂尾水的进一步净化效果。研究结果表明:生物生态组合人工湿地系统对尾水中污染物具有较好的去除效果,对COD、氨氮、TN和TP的平均去除率分别为29%、31%、18%和8%,平均出水浓度分别为35.54,0.97,10.77,0.11 mg/L,完全符合GB 18918—2002《城镇污水处理厂污染物排放标准》一级A标准。研究结果能够为城镇污水处理厂尾水生态处理技术和管理的改进提供数据支撑和理论基础,为以后湿地生态系统的推广和示范研究提供直接的理论依据和实践经验。
This paper took Jiangyin City Xinqiao Town sewage treatment plant as example to construct chemioal-ecological combined constructed wetlands system near natural river course to treat tail water from sewage treatment plant and investigated the removal efficiency of COD, ammonia, TN and TP in tail water. The research indicated that bio-ecological combined constructed wetlands system had good removal efficiency of pollutants in tail water. And the average removal rate of COD, ammonia, TN and TP were 29% , 31% , 18% and 8% , respectively; the average effluent concentrations of them were 35.54, 0. 97, 10.77, 0. ll mg/L. The result exactly matched the first grade A standard of ＂Urban Sewage Treatment Plant Pollutant Discharge Standard＂ （GB 18918--2002）. The technology had great potential for tail water treatment and was suitable for rural regions. The research result provided both the data and theoretical basis for improvement of biological treatment technology for tail water from sewage treatment plant, and also directed theoretical basis and practical experience for promotion and research of wetlands ecosystem.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第7期46-50,共5页
Environmental Engineering
基金
江苏省科技厅项目(BZ2014005
BE2014739)
中小企业发展专项资金(对欧国际合作)
关键词
人工湿地
生态生化
组合工艺
去除率
尾水
constructed wetlands
chemical-ecological
combined process
removal rate
tail water
