在MSW垃圾填埋场的特定地点水限值框架:集成高分辨率地点表征和污染物运输建模
Pranjal Singh1, Deepak Kumar Haritwal1, G V Ramana1
1Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, Delhi, 110016, India.
Chemosphere
|January 3, 2025
概括
一个新的框架使用高分辨率的现场特征和污染物运输建模,为旧的城市固体废物填埋场设定特定现场的目标限值. 这种方法有助于科学定义垃圾填埋场对和的修复目标.
科学领域:
- 环境工程 环境工程
- 地质技术工程 地质技术工程
- 污染物水文地质学
背景情况:
- 对于旧的城市固体废物 (MSW) 填埋场,建立特定地点的目标限值 (SSTL) 对于有效的整治至关重要.
- 目前缺乏用于导出SSTL的标准化框架,这阻碍了科学严格的目标设定.
研究的目的:
- 提出和验证一个全面的框架,用于在MSW倾倒场获得SSTL.
- 将框架应用于印度德里的一个案例研究,重点关注不和区中的污染物运输.
主要方法:
- 集成高分辨率站点表征 (HRSC) 工具 (CPTu,HPT) 和有针对性的采样.
- 使用吸附等热量和土壤水特性曲线 (SWCC) 开发污染物运输参数.
- 未来50年的建模以确定SSTL并评估污染物的突破.
主要成果:
- 氨 (NH4+) 和 (Ni) 在粘土和泥沙中被确定为令人担忧的污染物.
- 一个50年模型预测NH4+的SSTL为100mg/L.
- 由于高吸收,Ni在50年内没有突破,这表明不需要立即补救.
结论:
- 拟议的框架提供了一种快速,稳固和科学合理的方法,用于设定未经工程处理的垃圾填埋场的整治目标.
- 这种方法支持基于特定地点数据的动态修复策略的实施.
- 该研究成功地证明了该框架在现实世界MSW倾倒场场景中的实用性.
更多相关视频
相关概念视频
Microbial Leaching
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
Acid Mine Drainage
Mining activities that disturb sulfide-rich rocks, particularly those containing pyrite (FeS₂), initiate a cascade of geochemical and microbiological processes with serious environmental implications. When exposed to air and water, pyrite undergoes oxidation, releasing sulfate, ultimately forming sulfuric acid and mobilizing heavy metals into surrounding water systems. This phenomenon, known as acid mine drainage (AMD), results in low pH waters laden with toxic elements that threaten aquatic...
Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
Biological Treatment of Effluent and Waste Water
Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...


