煤炭燃烧产品垃圾填埋场的地球合成粘土层:环境影响评估
Guangying Pu1, Xinyue Wang2, Jinping Tian3
1School of Environment, Tsinghua University, Beijing, 100084, PR China.
Journal of environmental management
|November 7, 2025
概括
地质合成粘土层 (GCLs) 有效地管理垃圾填埋场中的煤炭燃烧产品 (CCPs). 建议使用本托尼特聚合物复合物 (BPC) GCLs用于高度的CCP浸出物,以防止环境污染.
科学领域:
- 地质技术工程 地质技术工程
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 地质合成粘土层 (GCLs) 对于填埋煤炭燃烧产品 (CCPs) 的限制至关重要.
- 评估环境影响和选择适合的GCLs对积极的CCP液仍然是行业和监管机构的挑战.
- 废弃旧的中央货币对手需要强大的航线系统来减轻环境风险.
研究的目的:
- 为了评估GCL在废弃物填埋场复合层中的性能.
- 建立基于CCP液化学的GLC选择标准.
- 评估漏水泄漏对环境的潜在影响.
主要方法:
- 实验室对本 (NaB) 和聚合物复合物 (BPC) GCL 的液压导电性进行测试.
- 透试验使用具有不同双价离子度的侵略性CCP浸出物.
- 污染物运输模拟使用测量数据和美国CCP水地质化学数据库.
主要成果:
- NaB GCL 保持了低液压导电性和安全的地下水污染物水平,用于低至中度度的 CCP 浸出物 (<80 mM).
- BPC GCLs,特别是那些高聚合物含量 (>4%燃烧损失) 的 GCLs,对于含有缩的 CCP 浸出物 (>100 mM) 非常重要.
- 推的GCL应用预计将在100年内将淡水生态毒性限制在<5 CTUe/m2.
结论:
- 对于有效的垃圾填埋,GCL的选择必须考虑CCP液的化学成分.
- BPC GCLs为攻击性CCP液提供了卓越的性能,确保了环境保护.
- 这项研究为GCL选择值提供了关键数据,帮助监管和行业决策.
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