Air Dispersion Modeling for Landfill Gas Emissions and Facility Siting
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Air dispersion modeling studies how the air pollutants disperse in the ambient atmosphere using computer simulation.

Dispersion models are used to estimate or predict the concentration of air pollutants or toxicants emitted from various sources such as industrial plants, road traffic vehicles or accidental chemical releases. Landfill gas is a complex mixture of gases generated by anaerobic decomposition of biodegradable waste in landfills, which includes many hazardous air pollutants (HAP). In recent years there is increasing concern regarding the acute toxicity, chronic hazards, and risks associated with landfill gas emissions. A landfill site case study is demonstrated, with different screening and refined modeling software tools used for modeling landfill gas emissions and their resulting ambient air concentrations. Facility siting assists decisions in managing the risk to on-site personnel located in new and existing buildings intended for occupancy, and air dispersion models can be applied to determine the consequences of accidental releases of hazardous or toxic materials. In this paper, analytical and computational fluid dynamics (CFD) software are used for a chemical gas plant permanent building location study.

Publication Summary

  • Geosyntec Authors: Tony Liu, Eric Peterson, Morgan Reed
  • All Authors: Tony Liu, Yi Liu, Eric Peterson and Morgan Reed
  • Title: Air Dispersion Modeling for Landfill Gas Emissions and Facility Siting
  • Event or Publication: AIChE 1st Asia-Pacific Conference on Process Safety Proceedings
  • Practice Areas: Air Quality Permitting, Compliance and Optimization, Risk Management, Analysis and Simulation, Design and Assessment
  • Date: 2013