施加部分和垂直流湿地处理废水的化潜力
Catiane Pelissari1, Fernando Jorge Corrêa Magalhães Filho2, Cesar Milton Baratto1
1Environmental Biotechnology Research Group (GEBIAM), University of Western Santa Catarina, Santa Catarina, Videira 89566-252, Brazil.
The Science of the total environment
|March 26, 2025
概括
来自和垂直流 (SVF) 湿地的处理废水可以安全地用于施工,与化学肥料的玉米产量相匹配. 这种可持续的方法可以节约水和营养,同时确保土壤健康和粮食安全.
科学领域:
- 农业科学 农业科学
- 环境工程 环境工程
- 土壤科学 土壤科学
背景情况:
- 越来越多的水资源短缺和环境问题需要可持续的农业实践.
- 化学肥料带来环境风险,并导致水污染.
- 在农业中需要可行的灌和营养管理替代方案.
研究的目的:
- 评估使用和垂直流 (SVF) 湿地的处理废水进行 fertigation 的可行性.
- 评估废水处理对玉米生产率,营养吸收和土壤健康的影响.
- 确定与使用SVF湿地废水用于农业再利用相关的微生物风险.
主要方法:
- 进行了实地实验,以比较不同工艺化策略下的玉米产量和营养同化.
- 分析了土壤的宏观营养素水平 (,,有机物质).
- 对SVF湿地废水进行了定量微生物学风险评估 (QMRA).
主要成果:
- 仅用经过处理的废水进行化,就能产生与化学肥料相比较的玉米 (10,070比10,109公斤ha-1).
- 单独的废水应用维持了平衡的土壤宏观营养素水平,并减少了营养素的损失.
- 混合化工 (废水+化学肥料) 导致产量降低,营养积累增加.
- 微生物风险评估证实了SVF湿地废水用于农业再利用的安全性.
结论:
- 来自SVF湿地的经过处理的废水是一种安全和可持续的生化选项,支持作物生产率和土壤肥力.
- 这种方法有效地减轻了水和营养缺乏,为农业的可持续性做出了贡献.
- 通过精制再利用废水可以提高粮食安全和水资源管理,特别是在面临气候挑战的发展中国家.
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