论文
论文标题: Performance of biofilter with a saturated zone for urban stormwater runoff pollution control: Influence of vegetation type and saturation time
作者: Wu, Juan; Cao, Xiaoyan; Zhao, Jing; Dai, Yanran; Cui, Naxin; Li, Zhu; Cheng, Shuiping
出版刊物: ECOLOGICAL ENGINEERING
出版日期: AUG
出版年份: 2017
卷/期:
DOI: 10.1016/j.ecoleng.2017.05.016
论文摘要: Stormwater runoff greatly contributes to surface water pollution and deterioration of aquatic environment in urban areas. Biofilter, as low impact development (LID) technology, has been widely applied in controlling urban runoff pollution in recent years. A multi-layered biofilter with a saturated zone was employed in this study to test its removal efficiency of pollutants and the effect of saturation time on its performance with the real road runoff. Two groups of columns were built with different vegetations (Zoysia matrella, ZM and a combination of Iris pseudacorus and Z matrella, IZ). During a 2.5-month duration, five times of runoff dosing trials with collected stormwater were conducted at a load of 20-25 L day(-1). All filter systems had effective retention of particulate matters, with the turbidity removals of over 95%. The IZ group performed more efficiently than ZM systems in the removal of total phosphorus (TP), ammonia (NH4-N), nitrate (NO3-N) and turbidity. The mean removal of total nitrogen (TN) and TP was 49.8 +/- 23.8% and 74.8 +/- 9.9% in IZ group, and 42.6 +/- 22.0% and 66.4 +/- 12.2% in ZM group. Saturation time had significant effect on the removal of TN, TP and turbidity, whose concentrations declined with the saturation duration. The performances of biofilters were dynamic, as a function of media depth and retention time. The configuration of saturated zone and optimized depth of media layers (at least 0.75 m) can provide a favorable condition for nitrogen removal under random inflow condition. (C) 2017 Elsevier B.V. All rights reserved.
== 实验室与学会 ==
  • == 实验室与学会 ==
  • 淡水生态与生物技术国家重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
  • 中国动物学会斑马鱼分会
  • 湖北省暨武汉动物学会
  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
  • == 平台建设 ==
  • “一带一路”海域赤潮数据库
  • 国家水生生物种质资源库
  • 国家斑马鱼资源中心
  • 中国科学院淡水藻种库
  • 中国科学院武汉生命科学大型仪器区域中心
  • 湿地生态系统观测研究野外站联盟
  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
== 相关网站推荐 ==
  • == 相关网站推荐 ==
  • 中国科学院
  • 农业农村部
  • 科学技术部
  • 生态环境部
  • 国家自然科学基金委员会
  • 中国科学院武汉分院
  • 湖北省科学技术厅
  • 湖北省生态环境厅
  • 湖北省农业农村厅