优化提取条件,以提高堆肥衍生的溶解有机物化和土壤修复潜力
Xiangyang Zhou1, Ziling Xiao1, Xiuna Ren1
1College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, PR China.
Journal of environmental management
|April 14, 2025
概括
优化堆肥茶 (CT) 提取包括调整堆肥与水的比例,提取时间和通风. 更长的提取时间显著影响CT质量,特定条件在营养提取或土壤修复的湿化方面表现出色.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 农业化学 农业化学
背景情况:
- 堆肥茶 (CT) 是从堆肥中提取的富含营养的液体,用于环境和农业领域.
- 对于提取参数如何影响CT质量及其在土壤修复中的有效性,人们的了解有限.
- 优化CT提取对于提高其在土壤处理和营养管理中的应用效率至关重要.
研究的目的:
- 研究堆肥与水的比率 (CWR),提取时间 (ET) 和通风模式 (AP) 对CT质量的影响.
- 优化提取条件,以最大限度地提取营养物质,并使CT.
- 评估优化CT在土壤修复中的有效性,特别是对于 (Cd) 去除.
主要方法:
- 采用多因素直角设计L16 (4^3) 来系统地研究CWR,ET和AP的影响.
- 测量了各种治疗组合的营养提取效率 (N,P2O5,K2O) 和软化得分.
- 使用优化的CT评估了 (Cd) 去除效率,将功能组与结合能力相关联.
主要成果:
- ,P2O5和K2O的提取效率分别在10-25%,10-20%和50-85%之间.
- 提取时间 (ET) 被确定为影响CT质量的最有影响的参数.
- 营养提取的最佳条件是CWR 1:60和ET 48h与 (T15),而化在CWR 1:30,ET 48h和通风 (T17) 中优越.
- 治疗T17实现了83.64%的Cd去除,与增加的基,基和碳基函数组有关.
结论:
- 提取时间是决定堆肥茶的营养含量和化水平的关键因素.
- 特定的提取参数可以优化,以提高营养物质的输送或改善土壤应用的湿化.
- 优化的堆肥茶,特别是T17,显示出有效地改善土壤重金属如的巨大潜力.
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