基于现场状况分析和数值模拟,为丘陵地区的垃圾填埋场制定了液减少和污染控制策略
Zhongle Cheng1, Fugang Wang1, Yaohui Wang1
1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130012, China; Jilin Provincial Key Laboratory of Water Resources and Water Environment, Jilin University, China.
Journal of environmental management
|August 3, 2024
概括
本研究提出了在丘陵地区使用隔离墙和抽水井对垃圾填埋场液控制的策略. 它提供了一种两阶段的方法,以确定最佳的放置和送率,以有效预防污染.
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:
- 在城市固体废物管理中,对垃圾填埋场液的控制至关重要.
- 现有的"隔离墙和抽水井"技术在平原地区是有效的,但对于复杂的丘陵地形缺乏战略.
- 丘陵式垃圾填埋场面临着因地形和地质而导致的液排放减少和污染控制的独特挑战.
研究的目的:
- 提出和验证在位于山区的垃圾填埋场减少液排放和控制污染的战略.
- 为了确定切断墙和抽水井的最佳定位和深度.
- 建立切割壁深度和抽量合理的组合,以有效地管理液.
主要方法:
- 一种两阶段的方法:对自然和工程条件进行定性分析,然后进行定量建模.
- 定性阶段涉及对气候变化,地下水流,地形,水文气象学,含水层厚度和填埋场运行/工程状态的详细分析.
- 定量阶段使用形颗粒追踪和污染物运输建模来确定隔离墙深度和送量.
主要成果:
- 开发了用于确定隔离墙和抽水井位置和深度在丘陵地形的策略.
- 量化了隔离墙深度,送量和污染物制之间的关系.
- 通过对中国东北部垃圾填埋场的案例研究,成功验证了拟议的策略.
结论:
- 拟议的两阶段战略提供了一个明确和可参考的操作方法,用于在丘陵式垃圾填埋场中控制水.
- 在复杂的地形中有效的水处理需要综合的定性和定量方法.
- 这项研究为环境保护和在具有挑战性的地理区域的垃圾填埋场可持续运营提供了宝贵的见解.
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