摘要
生物滞留设施中设置内部蓄水层有利于反硝化作用,去除效果已得到试验和理论验证,但实地规模试验相对缺乏。论文通过中试试验,研究有无内部蓄水层的生物滞留设施对氮的去除效果的影响,并分析其强化氮处理的机理,为生物滞留设施在道路径流控制的应用和推广方面提供数据支撑。研究发现,内部蓄水层可以有效提高硝态氮(NO_3^--N)的去除效率,与无内部蓄水层装置相比提高2.9倍,并强化氮处理方面设施的抗冲击能力。
Internal water storage （ IWS） layer in bioretention facility can facilitate denitrification and improve nitrogen removal efficiency which has been verified by lab scale tests, while data of pilot scale is limited. The influence of internal water storage layer on nitrate-removing was studied in bioretention facilities through the pilot test. The intention was to provide data for the application and promotion of bioretention facilities on control of runoffs. Results showed that the removal rate of NO 3 - N increased significantly with the presence of internal water storage layer by 2.9 times, and strengthened the nitrogen treatment facilities in the anti-shock capability.
出处
《净水技术》
CAS
2017年第2期26-30,共5页
Water Purification Technology
基金
上海市科委科技攻关项目(11231202100)
