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从典型的高废物生物质中获得的释放的碳化合物粒子的新见解:特殊性质,微观结构和形成机制

Wenjing Guo¹, Zhiyong Zhang¹, Bingyu Wang²

¹Key Laboratory of Agro-Environment in Downstream of Yangtze Plain/Scientific Observing and Experimental Station of Arable Land Conservation (Jiangsu), Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.

Waste management (New York, N.Y.)

|January 1, 2025

概括

厨房垃圾和藻类泥的水热碳化 (HTC) 处理产生了独特的微米大小的碳粒子 (HMP). 这些HMP表现为土壤修复和营养恢复的增强结合,这取决于HTC条件.

科学领域:

环境科学与工程环境科学与工程
材料科学材料科学材料科学
生物质的价值化生物质的价值化

背景情况:

水热碳化 (HTC) 是废物生物质回收的关键技术,特别是高原料.
与散装气相比,关于小气粒子 (≥0.45微米) 的特性和形成的知识缺口存在.
来自各种生物质来源的碳微粒 (HMP) 的研究对于了解它们的应用潜力至关重要.

研究的目的:

为了描述从高生物质中获得的化微粒 (HMP):厨房垃圾 (KG) 和藻类泥 (AM).
阐明这些HMP的形成机制.
根据其属性评估HP的潜在应用.

主要方法:

从接受HTC治疗的KG和AM中收集和分析HMP.
基本性质,微观结构和表面化学的表征.
使用差分热重力测量 (DTG),高斯拟合和TG-FTIR-MS进行详细分析.

主要成果:

HMPs (3.42-7.86重量%的产量) 显示出孔隙性差,pH值中等,负电荷和高疏水性 (接触角度为95-117°).
在HMP中识别了微核芳香核和疏水聚合物 (甲氧基,乙烯/碳基组).
提出的形成机制包括多重凝结,循环,梅拉德/曼尼克反应和固体-固体转化.

结论:

医疗保健医生对NH4+,金属和疏水污染物表现出强烈的结合亲和力.
这些特性提高了它们作为土壤肥料和土壤/水系统中的除污剂的有效性.
应用性能受到HTC温度和原料类型的显著影响.

关键词:

核心-外结构核心-外结构高斯的模型是高斯的模型.水性水性水性微球微球是指微球的小部分.这是一个TG-FTIR-MS.

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