通过水热碳化提高牛奶中的的生物可用性和降低水的可泄漏性:加工温度和CaO添加剂的影响
Mohammad Nazrul Islam1,2, Imran Hussian Mahdy1, Lide Chen3
1Department of Chemical and Biological Engineering, University of Idaho, Moscow, Idaho, USA.
Environmental technology
|November 24, 2024
概括
乳制品物的水热碳化 (HTC) 有效地将 (P) 循环转化为,显著降低了P流失的风险. 这种方法为乳制品废物管理和营养回收提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 废物管理 废物管理
背景情况:
- 乳制品便是丰富的 (P) 来源,但通过排水带来环境风险.
- 在土地应用之前减轻肥料中的P损失对于可持续农业至关重要.
研究的目的:
- 通过水热碳化 (HTC) 来研究乳制品便中的化,用于P回收.
- 评估P的生物可用性,稳定性和转化到含有和不含有CaO添加的炭中.
主要方法:
- 在180~240°C的温度下使用HTC生产碳化合物.
- 在220°C时对CaO添加 (0-10%) 的评估.
- 分析水溶性P (WSP),植物可用的P,P分化和物种化.
主要成果:
- HTC显著降低了WSP,表明流失风险较低,特别是在CaO.
- 植物可用的P在220°C达到峰值,达到总P的90%左右.
- 在最佳条件下 (220°C,10%的CaO) 产生了~85%的P回收和97%的流失风险降低.
- P转化为与Ca相关的酸P.
结论:
- 通过HTC生产碳水化合物对从奶肥中回收P是有效的.
- 这一过程可可持续地管理乳制品废物,并减轻P径流风险.
- 这项研究强调炭是从便中获取P的有价值的回收产品.
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