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提高雨水排水中的污染物减轻效率:探索生态系统循环动力学在时间变化中

Feiwu Chen¹, Qian Zhang¹, Guangtai Zheng²

¹College of Hydraulic Engineering, Tianjin Agricultural University, Tianjin 300384, China.

Bioresource technology

|May 11, 2024

概括

使用植物和虫的生物保留系统可以提高营养物质的去除. 不同的干燥时间和生态系统组件优化了随着时间的推移去除酸盐-,总和化学氧气需求.

科学领域:

环境工程环境工程
生态系统科学生态系统科学
水质管理水质管理

背景情况:

生物保留系统对于管理雨水排水和改善水质至关重要.
了解生物保留系统的长期运行效率对于可持续的城市发展至关重要.
结合植物和虫等生物成分,可以增强生物保护的生态系统服务.

研究的目的:

在不同的时间尺度下,评估使用填充剂,植物和虫的生物保留系统的运行效率.
为了确定干燥期对短期污染物去除的影响.
评估植物和虫对长期营养和有机物质去除的影响.

主要方法:

建立了三种不同的生物防护装置,使用不同的填充剂,植物和虫组合.
在短期和长期运行条件下监控污染物去除 (NO3−-N,TP,COD,NH4+-N).
进行微生物社区分析以了解生物过程.

主要成果:

短期:延长的干燥时间使酸 (NO3−-N),总 (TP) 和化学氧气需求 (COD) 的去除分别增加了57%,412%和510%.
长期:植物显著改善了COD去除 (1020%),而地增强了NH4+-N,NO3−-N,特别是TP去除 (916%).
微生物分析证实了对和代谢的积极影响,特别是在植物和虫中.

结论:

结合植物和虫的生物保留系统在不同时间尺度上表现出增强的污染物去除能力.
优化干燥时间对于短期减少污染物是有效的.
植物和虫的协同作用对于生物保留系统中长期的营养和有机物质管理至关重要.

关键词:

生物去除技术生物去除技术干湿交替变换方式微生物社区的微生物社区.雨水的下水流量下降.土壤的无脊椎动物.

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