通过微波辅助的热化学处理,从家禽垃圾灰中提升的回收,以提高其可溶性
Ario Fahimi1, Mattia Massa2, Elsayed Mousa3
1Department of Mining and Metallurgical Engineering, Mackay School of Earth Sciences and Engineering, University of Nevada, Reno, NV, 89557, United States.
Journal of environmental management
|March 10, 2025
概括
这项研究使用微波处理从家禽垃圾灰 (PLA) 中回收 (P),提高了其肥料生物可用性. 该过程形成NaCaPO4晶体,增加植物吸收P的溶解度,并提供可持续的生物废物利用.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 禽类垃圾灰 (PLA) 是一种富含 (P) 的生物废物,是一种重要的植物营养素.
- 目前从PLA中回收P的方法往往缺乏效率或经济可行性.
- 提高PLA中的P生物可用性对于可持续的肥料生产和废物管理至关重要.
研究的目的:
- 研究从家禽垃圾灰 (PLA) 中的的回收和增强生物可用性.
- 探索微波辅助热化学处理的有效性,用于P.恢复.
- 分析PLA在用于肥料应用的处理过程中的物理化学转化.
主要方法:
- 使用微波辅助的热化学方法,用二碳酸处理了家禽垃圾灰 (PLA) 样本.
- 使用X射线光 (XRF),X射线衍射 (XRD) 和扫描电子显微镜与能量分散光谱学 (SEM-EDS) 进行了物理化学表征.
- (P) 溶解度被评估以确定潜在的肥料用途的生物可用性.
主要成果:
- 微波处理导致酸 (NaCaPO4) 水晶的形成.
- 治疗后观察到P溶解度的显著增加,这表明生物可用性得到改善.
- 灰中的无形含量增加与P可溶性降低相关,但产生了具有潜在光学特性的玻璃材料.
结论:
- 微波辅助热化学处理是从PLA中回收P的可行方法,提高了其肥料潜力.
- 这项研究展示了生物废物利用和可持续管理的新方法.
- 通过将废物转化为有价值的农业资源,这些发现有助于循环经济原则.
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