从厨房垃圾中获得的生物气残留物质热解的多重附加值产品
Chuanjin Lin1, Bin Dong2, Zuxin Xu1
1College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China.
Journal of environmental sciences (China)
|November 2, 2025
概括
生物气残留物 (BR) 的热解将食品废物转化为有价值的产品,如吸附剂. 这种可持续的方法有效地处理废物和净化废水,支持循环经济.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 资源丰富的食品废弃物处理对于可持续的无氧消化和循环经济原则至关重要.
- 生物气残留 (BR) 是一种未充分利用的原料,用于生产增值产品.
研究的目的:
- 为了研究生物气残留物 (BR) 的热解,以生产高价值产品.
- 用于废水处理应用的BR热解衍生吸附剂的特征.
主要方法:
- 生物气残留物 (BR) 在400-800°C的温度下进行热解.
- 热解产品的分析,包括气体,焦油和煤炭.
- 煤炭衍生吸附剂对甲基蓝和重金属 (Cu2+,Pb2+,Cd2+) 的吸附能力的表征.
主要成果:
- 碳酸 (CaCO3) 在BR中分解为CO2和CaO,增强碳孔结构和焦油质量.
- 灰-生物炭复合材料显示出高吸附能力:969.30 mg/g的甲基蓝和显著的Cu2+,Pb2+和Cd2+的去除.
- 吸附剂表面上的灰分容易通过性环境和n-π相互作用点去除污染物.
结论:
- 热解BR是一种有效的生产高价值产品和高性能吸附剂的方法.
- 开发的吸附剂在废水处理,去除有机染料和重金属方面具有很好的潜力.
- 这种增值过程为土地处置提供了一个经济可行的替代方案,促进循环经济.
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