酸盐吸附由家禽便生物炭浸不同来源的
Kyungmin Kim1,2,3, Shannan Sweet2, Johannes Lehmann2,3,4
1Soil and Crop Science Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA.
概括
用硫酸或氧化增强的家禽便生物炭有效地从废水中回收. 这种可持续的方法优化了肥料生产,减少了对工业肥的依赖.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 肥料价格上和有限的可用性引发了对可持续农业的担忧.
- 废水回收为传统的工业肥提供了一个可持续的替代方案.
研究的目的:
- 为了优化浸的家禽便生物炭,以提高的回收.
- 评估不同的源和度,以最大限度地保持酸盐.
主要方法:
- 用各种化合物 (MgSO4,Mg(OH) 2,MgCl2) 浸的家禽便生物炭的生产.
- 从酸盐溶液中评估 (P) 保持能力.
- 对P沉产品和最佳Mg含量的分析.
主要成果:
- 与MgCl2.2相比,硫酸和氧化是保持P的优越Mg来源.
- 对家禽 litter生物炭的最佳Mg含量被确定为~10%w/w.
- 浸生物炭从50毫克的P L-1溶液中实现了95%以上的P回收,最大吸附能力为110毫克P g-1.1.
结论:
- 用~10%的MgSO4和/或Mg(OH) 2浸的家禽便生物炭,对废水中的回收非常有效.
- 这种方法为工业肥提供了可持续和高效的替代品,最大限度地减少了工程过程.
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