柴油污染的高的低温处理优化:产生的热解碳和颗粒聚合物的相互影响
Wei Wei1, Mingli Wei2, Yuan Li3
1State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China; IRSM-CAS/HK Poly U Joint Laboratory on Solid Waste Science, Wuhan, 430071, China; Hubei province Key Laboratory of Contaminated Sludge and Soil Science and Engineering, Wuhan, 430071, China.
Environmental pollution (Barking, Essex : 1987)
|October 26, 2024
概括
优化柴油污染土壤的低温整治包括了解火溶性碳形成和高聚合. 确定了关键补救度和温度的关键指数,以有效清理土壤.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 柴油污染带来环境风险,需要有效的补救策略.
- 低温处理对于受污染的地点至关重要,但由于土壤特性变化和副产品形成,效率受到阻碍.
- 了解火解碳和土壤聚合之间的相互作用是优化补救的关键.
研究的目的:
- 通过研究 pyrolytic carbon 和 kaolin 聚合的作用,优化柴油污染现场的低温整治.
- 确定提高效率和减少能源消耗的关键整治参数.
主要方法:
- 用柴油污染的高在不同温度 (100-200°C) 上进行热处理.
- 使用X射线光电子光谱学 (XPS),里埃变换红外光谱学 (FTIR) 和3D光谱 (3D-EEM) 分析火溶性碳形成.
- 评估由柴油度和其与污染物气体下降率的相关性影响的土壤聚合物的碎形维度.
主要成果:
- 峰值质量损失发生在100-150°C之间,在200°C以上损失最小.
- 在150-200°C处理的样本中证实了溶解性碳的形成.
- 柴油污染改变了聚合物碎形维度,其下降率与碎形维度变化和火溶性碳形成有关.
结论:
- 低温处理的有效性与火溶性碳生成和土壤聚合物结构有关.
- 确定了关键补救度 (C0) 和温度 (T0) 为优化柴油污染现场补救提供了一个框架.
- 这项研究为开发更有效,更可持续的土壤整治技术提供了见解.
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