评估城市固体废物填埋场线路的性能
Pradeep Jain1, Kevin M Winslow1, Timothy G Townsend2
1Innovative Waste Consulting Services, LLC, 3720 NW 43rd St., Suite 103, Gainesville, FL 32606.
Journal of environmental engineering (New York, N.Y.)
|November 9, 2023
概括
市政固体废物填埋场道系统在收集水方面表现出超过98%的效率. 复合材料和地膜层的性能都类似,尽管HELP模型可能会不准确地估计泄漏率.
科学领域:
- 环境工程 环境工程
- 地质技术工程 地质技术工程
- 废物管理 废物管理
背景情况:
- 垃圾填埋场内系统对于环境保护至关重要,防止浸物污染.
- 在城市固体废物填埋场中对初级道系统的性能评估对于监管合规性和环境安全至关重要.
研究的目的:
- 在城市固体废物填埋场使用液收集系统 (LCS) 和泄漏检测系统 (LDS) 数据来评估初级层系统的性能和效率.
- 将实际的泄漏率与来自垃圾填埋场性能水文评估 (HELP) 模型的估计进行比较.
主要方法:
- 分析了来自LCS和LDS的流量数据,这些数据来自美国七个州的54个垃圾填埋场.
- 基于收集的浸液量计算聚合层系统效率.
- 观察到的泄漏率与HELP模型预测不同类型的层 (复合材料与地质膜) 的比较.
主要成果:
- 发现,假设完全收集液,初级层系统的总效率超过98%.
- 在复合层和仅用地膜层之间没有观察到收集效率的统计学上显著差异 (两者的中位数为99%).
- 帮助模型倾向于高估地质膜层的泄漏率,但低估复合材料层的泄漏率,考虑到默认缺陷参数.
结论:
- 城市固体废物填埋场的初级道系统具有很高的收集效率.
- 复合材料和仅用地质膜的初级层在液收集效率方面表现相似.
- HELP模型的泄漏估计方程可能需要重新校准,以准确预测船上的性能,考虑到潜在的地下水入LDS.
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