使用回收聚合物的建造湿地,用于改善尾水处理
Hui Wang1, Xianghua Wang2, Yaou Yang3
1State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, Shaanxi, 710048, China; Department of Municipal and Environmental Engineering, School of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, Shaanxi, 710048, China.
Journal of environmental management
|November 16, 2024
概括
回收建筑聚合物有效处理建筑湿地 (CWs) 的废水. 混合建筑回收聚合物 (MCRA) 基板与Typha orientalis等植物具有高的污染物清除效率.
科学领域:
- 环境工程 环境工程
- 废水处理技术 废水处理技术
- 可持续材料 可持续材料
背景情况:
- 建筑行业的废物存在处理方面的挑战.
- 建筑湿地 (CWs) 在废水处理方面是有效的.
- 作为CW基材的回收建筑聚合物需要进一步调查.
研究的目的:
- 评估回收建筑聚合物作为CW基板的有效性.
- 为了在不同的基板上比较植物生存和废水处理性能.
- 为了确定使用循环聚合物的CW的最佳运行条件.
主要方法:
- 对使用混合建筑回收聚合物 (MCRA),红 (RB) 和砂基板的CW进行系统研究.
- 评估各种植物物种和操作参数 (季节,液压保留时间[HRT],C/N比率).
- 分析尾水质量和微生物群体组成.
主要成果:
- 与RB-CWs和Gravel-CWs相比,MCRA-CWs对化学参数的去除效率更高.
- 在MCRA-CW中,Typha orientalis,Cyperus alternifolius和Phragmites australis的移除率很高.
- 蛋白质细菌在MCRA和RB中主导着微生物群落,而蓝藻细菌在石中最为丰富.
- 水净化受到季节,HRT和C/N比率的显著影响,夏季的性能最好.
结论:
- 经过处理的回收建筑聚合物是CWs的可行的基板.
- MCRA-CW提供了显著的废水净化和环境效益,与废物为废物原则保持一致.
- 工厂的选择和操作参数的优化对于最大限度地提高处理效率至关重要.
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