水生巨型植物在尾水处理过程中减轻了除和氧化排放之间的冲突
Haoping Wu1, Beibei Hao2, Yi You3
1Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China; Key Laboratory of Modern Agricultural Intelligent Equipment in South China, Ministry of Agriculture and Rural Affairs, Guangdong, 510630, China; Key Laboratory of Urban Agriculture in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510640, China.
Journal of environmental management
|October 2, 2024
概括
艾赫霍尼亚和皮斯蒂亚层状植物显示出处理废水厂尾水的巨大潜力,有效地去除和减少氧化排放. 这些水生植物为改善水质提供了可持续的植物修复解决方案.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 生物技术是生物技术.
背景情况:
- 污水处理厂 (WWTP) 的尾水对 (N) 的去除和氧化 (N2O) 排放构成挑战,原因是碳 (C/N) 比率低.
- 选择合适的水生植物对于减轻WWTP尾水中的N去除效率低下和N2O生产至关重要.
研究的目的:
- 评估Eichhornia crassipes,Myriophyllum aquaticum和Pistia stratiotes在模拟WWTP尾水处理中的有效性.
- 研究植物吸收,盆地保留和根芽比在去除中的作用.
- 评估水生植物对微生物群落和转化过程的影响,影响N2O排放.
主要方法:
- 一个模拟的尾水中宇宙实验是使用三个选定的水生植物物种进行的.
- 使用15N同位素质量平衡分析量化了去除.
- 监测了植物特征 (例如,根芽比率,生长率) 和水质参数.
- 分析了细菌社区结构,丰富性,多样性和协会网络.
主要成果:
- 植物吸收和盆地保留是整体去除的重要贡献者.
- 同化效率与植物生长率相比,与根芽比率的相关性更强.
- 水生植物通过改变水质间接调节微生物的去除和N2O排放.
- 水生植物通过影响细菌社区结构和功能来影响的转化.
结论:
- 在尾水处理中,Eichhornia crassipes和Pistia层状植物表现出大量的吸收能力和氧化减缓能力.
- 使用这些水生植物进行植物疗法可以有效地解决尾水净化和N2O生产之间的冲突.
- 该研究强调了特定水生植物在可持续废水管理和减少温室气体排放方面的潜力.
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