评估活动城市固体废物填埋场的降水,废物和液的水分贡献
Max J Krause1, William Eades2, Natalie Detwiler2
1US Environmental Protection Agency Office of Research & Development, 26 Martin Luther King Dr W, Cincinnati, OH, 45268, USA.
Journal of environmental management
|June 24, 2023
概括
在城市固体废物填埋场中,入水废水是主要的水源,而不是液循环. 这种水平衡模型有助于预测水分含量,避免监管问题.
科学领域:
- 环境工程 环境工程
- 废物管理科学 废物管理科学
- 水文学 水文学
背景情况:
- 城市固体废物 (MSW) 填埋场从各种来源产生大量的水分,影响运营条件和监管合规性.
- 了解垃圾填埋场水平衡对于管理水,气体生产和水分含量至关重要,特别是在严格控制的40%质量门方面.
研究的目的:
- 为俄俄州36个MSW垃圾填埋场进行5-10年的水平衡.
- 量化降水,进来的废物水分和液回收对填埋水分的贡献.
- 评估液再循环对垃圾填埋场水分含量的影响,相对于40%的监管值.
主要方法:
- 来自公共来源的聚合降水,蒸发 (ET),废物位,垃圾填埋气 (LFG) 和水数据.
- 开发了一个水平衡模型,将废物分解纳入LFG收集数据的信息.
- 分析了排水系数 (CRO) 对垃圾填埋场计算的水分含量的影响.
主要成果:
- 流入废物中的排水 (20-30%的水分) 是填埋场水分的最大来源.
- 在ET之后,降水透是第二大水分来源.
- 液循环并没有显著增加年度水分含量,这表明它不太可能超过40%的监管值.
结论:
- 垃圾填埋场的水分含量主要是由进入的废物和降水驱动的,而不是水循环.
- 精确的雨水管理对于防止"生物反应器"条件至关重要.
- 水平衡方法有助于运营商和监管机构了解水分来源并防止运营问题.
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