Migration of chloroform in aquifers
Article Abstract:
An investigation on the fluid dynamics of dense chlorinated solvents or chlorinated hydrocarbons (CHCs) was conducted to provide a base for solving the problems of ground-water contamination. Analysis of two quantitative models using a case study in the Louisville aquifer, KY, complemented the qualitative findings of the investigation. Results showed that for the unsaturated zone, transport of CHCs was controlled by diffusion in the gaseous phase and vertical advection. In saturated zones, the transport process was advection along the regional horizontal ground-water flow velocity, and dispersion.
Publication Name: Journal of Environmental Engineering
Subject: Environmental issues
ISSN: 0733-9372
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
UV pilot testing: intensity distributions and hydrodynamics
Article Abstract:
A study on the fundamental differences between small- and large-scale ultraviolet (UV) systems in relation to pilot testing has been made. In the absence of an accurate predictive model of UV disinfection, pilot-scale systems will remain as the tool to assess potential effectiveness of UV disinfection on a site-by-site basis. The results have indicated the advantages of numerical modeling of UV intensity distributions from mercury arc lamps and the advantages of the large pilot systems in terms of hydraulic behavior.
Publication Name: Journal of Environmental Engineering
Subject: Environmental issues
ISSN: 0733-9372
Year: 1995
User Contributions:
Comment about this article or add new information about this topic:
Migration of chloroform in aquifiers
Article Abstract:
A discussion and reply to the discussion on the migration of chloroform in aquifiers is presented. The discussion criticizes a model of chloroform migration in aquifiers at a constant infiltration rate. Possible explanations for the high chloroform concentrations at a given period is presented. The reply to the discussion acknowledges the points raised and criticizes the modification made to the formula that models the transport process.
Publication Name: Journal of Environmental Engineering
Subject: Environmental issues
ISSN: 0733-9372
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Evolution of allometries in the worker caste of Dorylus army ants. Ants in your plants: effects of nectar-thieves on pollen fertility and seed-siring capacity in the alpine wildflower, Polemonium viscosum
- Abstracts: The application of batch extraction tests for the characterization of solidified ferro alloy waste products. Biological treatment of synthetic wastewater containing 2,4 dichlorophenol (DCP) in an activated sludge unit
- Abstracts: Empirical evaluation of observation scale effects in community time series. The frequency spectrum of structured discrete time population models: Its properties and their ecological implications
- Abstracts: The fate of chloroacetanilide herbicides and their degradation products in the Nzoia Basin Kenya. The socio-economic and ecological impacts of the agro-industrial food chain on the rural economy in Kenya
- Abstracts: What drives conversion of tropical forest in Carrasco Province, Bolivia? Glacier evolution in the tropical Andes during the last decades of the 20th century: Chacaltaya, Bolivia, and Antizana, Ecuador