By Marve Hyman
"Groundwater and Soil Remediation: procedure layout and price Estimating of confirmed applied sciences" describes traditional remedy applied sciences and explains how they're designed and what they price. This functional e-book presents layout info and examples of remediation suggestions with an emphasis at the integration of remediation applied sciences right into a strategy layout scheme. Chemical engineering suggestions are utilized to civil and environmental engineering and hydrogeologic illness difficulties, permitting engineers to pick the best-suited remediation answer from competing possible choices. the stairs in systematic technique layout and procedure keep an eye on are defined intimately for a number of soil and groundwater remediation strategies, together with metals elimination from groundwater, groundwater remediation utilizing carbon absorption, stripping of groundwater, aqueous chemical oxidation, bioremediation platforms, soil venting, thermal remedy for soils and sludges, soil washing, and stabilization and solidification. purposes of conventional price estimating tools in addition to these constructed specially for remediation platforms, in accordance with what's frequently constrained subsurface details, also are provided. The e-book presents a logical pathway for opting for the simplest possible combos of techniques for advanced remediation platforms, explains how readers can discover ways to interpret or create piping and instrumentation diagrams (P&IDs), and offers a entire exposition for expense estimating of therapy structures with either conventional tools and machine courses.
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Extra info for Groundwater and soil remediation : process design and cost estimating of proven technologies
This matrix is optimistic in nature and should always be used in conjunction with the referenced test sections, which contain additional information that can be useful in identifying potentially applicable technologies. 29 Natural Attenuation Full Full Full Full Full Full Vapor Liquid Solid, Liqui< Liquid Solid Liquid No No Yes No No Yes Both Both Neither CAP Both Full Pilot Full Full Full Full Full Liquid None Liquid, Soli( Liquid Solid Liquid, Solk Liquid Yes No No Yes No No No Both Both Both Both Both Both Both NA NA NA None No No Neither Neither Table 1-2 Treatment technologies screening matrix (continued).
Other examples of the ordering logic used in Step 2 are as follows: In situ processes precede or preclude extraction or excavation. , biodegradation, incineration) precede fixation. Excavation precedes capping. Step 3 (estimating effectiveness) is done with the aid of mathematical models that simulate the processes. , stripping air, soil-wash water, vapor extraction air, spent carbon) and their concentrations, contaminant concentration or volume reductions, and immobilization. Step 4 (choosing from among the alternatives) evaluations can be based on some of the criteria shown in Figure 1-1, especially: • • • • • Compliance with ARARs Long-term effectiveness and permanence Reduction of toxicity, mobility or volume Short-term effectiveness Cost Also, Step 4 includes another look at the ability to implement a given remediationoption.
For example, groundwater with dissolved hydrocarbon contaminants may be treated ex situ with: • • • • • • • • Bioremediation using activated sludge Bioremediation using a fixed-film bioreactor Air stripping Steam stripping Carbon adsorption Aqueous oxidation with UV light and peroxide Aqueous oxidation with ozone Aqueous oxidation with peroxide and ozone If just three of these process options appear implementable and effective, the processes (labeled 1, 2, and 3) can be ordered in various sequences, and the possible alternative treatment trains are as follows: 1.
Groundwater and soil remediation : process design and cost estimating of proven technologies by Marve Hyman