Download or read book Organic Compounds Entering Ground Water from a Landfill written by James M. Robertson and published by . This book was released on 1974 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Compounds Entering Ground Water from a Landfill written by James M. Robertson and published by . This book was released on 1974 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Compounds in Ground Water Near a Sanitary Landfill in the Town of Brookhaven Long Island New York written by Kenneth A. Pearsall and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contamination of Ground Water by Toxic Organic Chemicals written by and published by . This book was released on 1981 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volatile Organic Compounds in Groundwater and Leachate at Wisconsin Landfills written by Marci A. Friedman and published by . This book was released on 1988 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of Organic Compounds in Landfill Leachate written by Craig R. Toussaint and published by . This book was released on 1974 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential for Advection of Volatile Organic Compounds in Ground Water to the Cochato River Baird McGuire Superfund Site Holbrook Massachusetts March and April 1998 written by Jennifer G. Savoie and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occurrence and Status of Volatile Organic Compounds in Ground Water from Rural Untreated Self supplied Domestic Wells in the United States 1986 99 written by Michael James Moran and published by . This book was released on 2002 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Volatile Organic Compounds in Ground Water of the Lower Illinois River Basin written by William S. Morrow and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution and Behaviour of Volatile Organic Compounds in Groundwater at a Landfill Site in Gloucester Ontario written by Jack Edward Barbash and published by . This book was released on 1983 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occurrence and Concentrations of Volatile Organic Compounds in Shallow Ground Water in the Lower Susquehanna River Basin Pennsylvania and Maryland written by Matthew H. Daly and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Potential Solution to Pollution of Groundwater by Diffusion of Volatile Organic Compounds Through the Primary HDPE Geomembrane in Composite Lining Systems of Landfills written by Reon Albertus Pienaar and published by . This book was released on 2015 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waste production is not a modern concept. It has always been a byproduct of human beings use of the earth s natural resources for survival. The safe and reliable long-term disposal of solid waste residues is an important component of integrated waste management. Solid waste residues are waste components that are not recycled, that remain after processing at a material recovery facility, or that remain after the recovery of energy. Historically, solid waste was placed in depressions in the soil of the earth s crust through a process called landfilling. In South Africa, most waste produced by households and industries is disposed of on landfill sites. By law, all landfills and waste containment structures are required to have an engineered containment barrier installed that adheres to the minimum standards described in the waste classification and management regulations of the South African National Environmental Management: Waste Act (Act 59 of 2008). When waste materials in a landfill or any other waste body is exposed to the chemicals and heat generated over time, they produce harmful fluids in the form of leachate or landfill gas that migrate from the landfill towards the liner or capping, and include organic contaminants. These organic contaminants include a group commonly referred to as volatile organic compounds (VOCs) that have been known to migrate to and pollute the underlying groundwater (Prosser & Janechek, 1995). The High Density Polyethylene (HDPE) Geomembrane is often believed to be the primary barrier to contaminant transport, but the clay component in the composite liner usually controls the rate of transport of VOCs since researchers like Edil (2003) have shown that VOCs diffuse through geomembranes at appreciable rates. Therefore, the effectiveness of modern landfill liner systems in minimising the migration of VOCs merits scrutiny. The aim of this study was to obtain reliable data on the reduction in diffusion of VOCs through the HDPE geomembranes (GM) component in the composite liner systems of landfills by extracting air through the leakage detection layer or drainage layer of the composite liner. The objective was to undertake tests in three phases: Phase 1 aimed to prove that the chosen VOCs diffuse from source to receptor through a GM layer and to compare this to the results obtained from the literature. Phase 2 aimed to prove that, even if the separation between the source and receptor consisted of two GMs separated by an air-filled pervious zone, diffusion of the VOCs would still occur from the source to the receptor volumes. Phase 3 aimed to prove that, by introducing airflow into the pervious zone between the two GMs, the concentration of VOCs in the receptor volume (due to diffusion through the GM) could be reduced significantly. The testing in this phase also aimed to determine if the rate of air removal would play a role in the diffusive process and the resultant VOC concentrations in the receptor. Laboratory tests were carried out at the South Campus of the University of Pretoria in South Africa. The tests undertaken were based on the methods used by Prof Kerry Rowe at the Geo-Engineering Centre at the Queens University in Kingston, Canada as demonstrated during a visit to their facility. To undertake these tests it would be required to calculate the Sorption (Sgf) and Diffusion (Dg) coefficients for the compound and GM in question. Sorption/Immersion, Diffusion and Weight Gain tests were done to determine the sorption coefficient for the GM and permeant in question. The Diffusion coefficient (Dg) was inferred using the variation in source and receptor concentrations with time (Fick s second law) at the given boundary conditions. This was done using POLLUTEv7®, which solves the one-dimensional contaminant migration equation subject to boundary conditions at the top and bottom of the GM being modelled. The data entry into POLLUTEv7® includes information such as thickness and density on the layers to be modelled as well as the boundary conditions to be used for modelling. Phase 1 testing had challenges and limitations but it met its objective of proving that the VOCs in question diffuse from the source, through the 2 mm GM, into the receptor that represents groundwater, at rates that were comparable to those found in literature. Phase 2 tests took longer to reach equilibrium since the sorption and diffusion process had to take place over two GMs and the 0.8 cm air-filled pervious zone. The temperature under which phase 2 tests were undertaken was higher than that of phase 1 and, as indicated by literature, diffusion occurs faster at elevated temperatures. Undertaking the tests at different temperatures was not on purpose but rather a factor of laboratory conditions and setup. Data on the diffusion across two GMs separated by air, was not readily available to compare the difference that the increased temperature had on the system, but Phase 2 testing successfully met its aim of proving that the diffusion of BTEX and Chloroform takes place from source to receptor across a divide consisting of two 1 mm GMs separated by an air filled pervious zone. Phase 3 testing showed that, even though the optimal rate of airflow would require additional testing, introducing a flow of air through a pervious zone adjacent to the GM layer in a landfill liner would significantly reduce the concentrations of VOCs in the groundwater beneath landfills and waste containment facilities.
Download or read book Contamination of Groundwaters written by Domy C. Adriano and published by CRC Press. This book was released on 2020-11-25 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: International experts have contributed key chapters to this major work on groundwater contamination. Section 1: Methodology and Modeling deals with both organic and inorganic contaminants, including those from agricultural operations. Section 2: Case Studies presents contamination scenarios with both inorganic and organic chemicals including agriculturally-related constituents, such as the nitrates. This important new publication is a welcome addition to the literature and will enhance recent information on methodology, modeling and real-world situations. It is of interest to scientists and planners in local and national government; environmental chemists, geochemists, geologists, and health and safety officers; river authorities; hydrologists; and the mining and land reclamation industries.
Download or read book Natural Attenuation for Groundwater Remediation written by Commission on Geosciences, Environment, and Resources and published by National Academies Press. This book was released on 2000-08-31 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, officials responsible for clean-up of contaminated groundwater have increasingly turned to natural attenuation-essentially allowing naturally occurring processes to reduce the toxic potential of contaminants-versus engineered solutions. This saves both money and headaches. To the people in surrounding communities, though, it can appear that clean-up officials are simply walking away from contaminated sites. When is natural attenuation the appropriate approach to a clean-up? This book presents the consensus of a diverse committee, informed by the views of researchers, regulators, and community activists. The committee reviews the likely effectiveness of natural attenuation with different classes of contaminants-and describes how to evaluate the "footprints" of natural attenuation at a site to determine whether natural processes will provide adequate clean-up. Included are recommendations for regulatory change. The committee emphasizes the importance of the public's belief and attitudes toward remediation and provides guidance on involving community stakeholders throughout the clean-up process. The book explores how contamination occurs, explaining concepts and terms, and includes case studies from the Hanford nuclear site, military bases, as well as other sites. It provides historical background and important data on clean-up processes and goes on to offer critical reviews of 14 published protocols for evaluating natural attenuation.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1975 with total page 2834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PCB in Water written by Water Resources Scientific Information Center and published by . This book was released on 1973 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas and Leachate from Landfills written by Emil J. Genetelli and published by . This book was released on 1976 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
