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[上海污水处理厂的污泥园艺利用潜力和复合生态风险评估]

Yong Zhan¹, Chao-Qi Yang¹, Hui Wang²

¹School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.

Huan jing ke xue= Huanjing kexue

|October 15, 2025

概括

上海上海上海上海上海

科学领域:

环境科学环境科学
土壤科学土壤科学
城市生态城市生态学

背景情况:

上海的生态建设计划 (2018-2035) 需要大量的土壤资源.
上海的污水处理厂每年产生约122万的污泥.
稳定的污水污泥可以成为生态发展的有价值基材.

研究的目的:

评估干净的污水污泥是否适合作为生态基板,用于上海的绿色空间开发.
分析泥中的重金属,PAH和营养物质,以确定其安全性和肥力.
开发一种复合风险评估方法,用于长期的污泥应用.

主要方法:

系统监测和分析来自10个处理厂的污泥中的重金属,PAH和生态营养素.
根据有机肥,土壤污染和污泥质量的国家标准进行评估.
在复合生态风险评估中应用分析层次过程 (AHP).

主要成果:

污泥符合有机肥 (NY 525-2021) 和土壤环境质量 (GB 36600-2018) 的标准.
营养水平表明高肥力 (指数1.84),适合改善贫困土壤.
氧化水平符合CJ/T 309-2009的标准,证实了城市绿色空间建设的安全性.
综合风险评估显示,整体生态风险低,但强调了对 (Hg) 和 (Ni) 的潜在担忧.

结论:

来自上海的脱水污水污泥是城市绿色空间开发的安全和肥沃资源.
污泥的应用支持土壤的改善,并提供了低碳利用途径.
建议持续监测Hg和Ni,以确保长期的生态可持续性.

关键词:

分析层次的过程过程分析层次的过程.重金属污染污染重金属污染多环芳 ((PAHs) 的污染.污水污泥污水污泥污水污泥污泥综合肥力指数的综合肥力指数

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