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通过响应表面方法来优化咖啡的碳化:循环经济方法用于环境修复

Xia Zhang¹, Panjie Su¹, Weichao Wang¹

¹Faculty of Mechanical and Electrical Engineering, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.

Environmental pollution (Barking, Essex : 1987)

|November 28, 2023

概括

咖啡的废物可以通过优化碳化转化为有价值的生物炭肥料. 这一过程减少了环境污染,并产生了释放缓慢的尿素肥料,提供最佳的营养物质.

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:

咖啡废弃物处理带来了环境挑战,并浪费了宝贵的资源.
碳化提供了一种有效的方法,将咖啡转化为有用的产品,减轻污染.

研究的目的:

为了优化咖啡碳化条件的生物炭生产.
探索咖啡生物炭作为缓释尿素肥料的潜力.

主要方法:

使用响应表面方法来优化碳化参数.
实验对碳化温度 (600-1000°C),时间 (1-5小时) 和加热速度 (5-20°C/分钟) 进行了变化.
分析了尿素吸附,营养物质释放率和红外光谱.

主要成果:

最佳的尿素吸附率为56.3mg/g,在809°C下达到2.83h,加热速度为15.3°C/分钟.
最佳的营养物质释放 (7天内45.4%) 发生在813°C,持续3.19小时,加热速度为15.0°C/分钟.
红外光谱学证实功能组保持不变,而孔隙结构和吸收强度受到碳化的影响.

结论:

优化的碳化将咖啡转化为有希望的生物炭材料,用于缓释尿素肥料.
这种方法提供了有效的废物管理策略,减少了环境污染物.
由此产生的生物炭,其功能组和毛孔,适合用于肥料应用.

关键词:

碳化是指碳化的过程.循环经济是一个循环经济.咖啡的咖啡.污染的整治污染的整治污染的整治响应表面的方法响应表面方法废物管理废物管理

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