Author: Publisher:
ISBN:
Category : Environmental management
Languages : en
Pages : 972
Book Description
The Office of Environmental Management Technical Reports
Author: Publisher:
ISBN:
Category : Environmental management
Languages : en
Pages : 972
Book Description
Radioactive Waste Management
Author: The Office of Environmental Management Technical Reports
Author: Publisher:
ISBN:
Category : Environmental management
Languages : en
Pages : 968
Book Description
Government Reports Announcements & Index
Author: INIS Atomindex
Author: Energy Research Abstracts
Author: Engineering and Design
Author: Us Army Corps Of EngineersPublisher: Military Bookshop
ISBN: 9781780397702
Category : Technology & Engineering
Languages : en
Pages : 434
Book Description
This manual provides practical guidance for the design and operation of soil vapor extraction (SVE) and bioventing (BV) systems. It is intended for use by engineers, geologists, hydrogeologists, and soil scientists, chemists, project managers, and others who possess a technical education and some design experience but only the broadest familiarity with SVE or BV systems.
Analysis of Selected Enhancements for Soil Vapor Extraction
Author: Publisher: DIANE Publishing
ISBN: 1428903607
Category : Soil pollution
Languages : en
Pages : 246
Book Description
This report provides an engineering analysis of, and status report on, selected enhancements for soil vapor extraction (SVE) treatment technologies. The report is intended to assist project managers considering an SVE treatment system by providing them with an up-to-date status of enhancement technologies; an evaluation of each technology's applicability to various site conditions; a presentation of cost and performance information; a list of vendors specializing in the technologies; a discussion of relative strengths and limitations of the technologies; recommendations to keep in mind when considering the enhancements; and a compilation of references. The performance of an SVE system depends on properties of both the contaminants and the soil. SVE is generally applicable to compounds with a vapor pressure of greater than 1 millimeter of mercury at 20EC and a Henry s Law constant of greater than 100 atmospheres per mole fraction. SVE is most effective at sites with relatively permeable contaminated soil and with saturated hydraulic conductivities of greater than 1 x 10 or 1 x 10 centimeter per second (cm/s). SVE by itself does not effectively remove contaminants -3 -2 in saturated soil. However, SVE can be used as an integral part of some treatment schemes that treat both groundwater and the overlying vadose zone. Enhancement technologies should be considered when contaminant or soil characteristics limit the effectiveness of SVE or when contaminants are present in saturated soil. The five enhancement technologies covered in this report are as follows and are described in the following subsections: * Air Sparging * Dual-phase Extraction * Directional Drilling * Pneumatic and Hydraulic Fracturing * Thermal Enhancement.
Research and Technology
Author: Goddard Space Flight CenterPublisher:
ISBN:
Category : Outer space
Languages : en
Pages : 288
Book Description
Permeable Barriers for Groundwater Remediation
Author: Arun R. GavaskarPublisher:
ISBN:
Category : Science
Languages : en
Pages : 198
Book Description
Because of the limitations of conventional pump-and-treat systems in treating groundwater contaminants, permeable barriers are potentially more cost-effective than pump-and-treat systems for treating dissolved chlorinated solvent plumes, which may persist in the saturated zone for several decades. Other contaminants, such as chromium or other soluble heavy metals, can also be treated with this technology. Permeable Barriers for Groundwater Remediation discusses the types of permeable barriers, their design and construction, and how they can be monitored to evaluate compliance. It provides practical guidance on reactive media selection, treatability testing, hydrogeologic and geochemical modeling, and innovative installation techniques for the evaluation and application of this promising new technology. The types of permeable barriers discussed include: trench-type and caisson-based reactive cells; innovative emplacements, such as horizontal trenching and jetting; and continuous reactive barriers versus funnel-and-gate systems.