典型的污染物从雨水排放到生态沟中的去除效应
Hui Luo1,2, Jing Yang1, Bao-Jie He3,4,5,6
1School of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang, 222005, China.
概括
生态沟有效地去除了道路下水污染物,如和. 最佳的液压负载对于有效的污染物去除至关重要,特别是在缓慢的流量条件下.
科学领域:
- 环境工程 环境工程
- 水质管理水质管理
- 生态恢复 生态恢复
背景情况:
- 道路雨水排放是污染水的重要来源.
- 生态沟是旨在减轻这种污染的工程系统.
- 这些系统利用了植物吸收,沉积和微生物作用等自然过程.
研究的目的:
- 在不同的液压条件下 (降雨,缓慢流动,静水) 模拟和分析两种生态沟的污染物清除效率.
- 为了确定液压负载对和去除率的影响.
- 为优化生态沟设计和运营提供数据,以提高污染物减少.
主要方法:
- 在两个不同的生态沟设计中模拟污染物运输.
- 在三种流量条件下对总 (TN) 和总 (TP) 的去除率的评估.
- 分析运行特性和污染物度随时间的推移.
主要成果:
- 在缓慢流动下,随着液压负载的增加,TN去除的减少; 0.3 m3/天) 被确定为合适的负载.
- 降雨模拟显示TN去除率为26.1-37.2% (沟1号) 和24.9-52.5% (沟2号).
- 在降雨期间的TP移除率为44.6-63.3% (沟1) 和36.1-62.1% (沟2).
- 在静态条件下,TP在19.4-22.1小时内达到地表水标准,平均去除率为74.7% (沟1号沟) 和53.7% (沟2号沟).
结论:
- 液压负荷显著影响生态沟中TN清除效率.
- 生态沟在从雨水流水中去除和方面表现出有效性.
- 这些发现为优化生态沟参数提供了宝贵的见解,以改善雨水污染控制.
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