soil type Articles
-
Thermally activated persulfate oxidation of NAPL chlorinated organic compounds: effect of soil composition on oxidant demand in different soil-persulfate systems
This study investigates the interaction of persulfate with soil components and chlorinated volatile organic compounds (CVOCs), using thermally activated persulfate oxidation in three soil types: high sand content; high clay content; and paddy field soil. The effect of soil composition on the available oxidant demand and CVOC removal rate was evaluated. Results suggest that the treatment ...
-
Electrical Resistance Heating: a Hot New Approach to Soil and Groundwater Remediation
Electrical Resistance Heating (ERH) is an aggressive remediation technology that can quickly reduce the mass of volatile organic compounds (VOCs) in soil and groundwater by over 99%. The process is often used to clean sites where other technologies have had limited success. Larger ERH sites are cleaned within 6 to 12 months and smaller sites can be cleaned in half that time or less. The ...
-
Review of Biofiltration Review of Biofiltration of Odors and Volatile Organic Compounds (Volatile Organic Compounds (VOCs VOCs)
- Biofiltration of odors and volatile organicshas been practiced successfully for overthree decades - Media used in biofiltration can be categorizedinto two main types: * Natural Media –Compost, soil, peat * Synthetic Media –plastic, ceramic. - Currently, there is no systematic way ofcomparing the cost-performance of ...
-
Microbubble Oxidation Smokes MTBE and BTEX. C-Sparge Ozone Microsparging for Rapid Removal of MTBE and Benzene
Untitled Document Figure 1. Master Control Unit A system called C-SpargingTM which uses ozone/air injected periodically in conjunction with a pulsing pump has been demonstrated to reduce MTBE from over 1000 ppb to less than 100 ppb in less than 40 days. The rate of decay was found to be a ten-fold reduction in monitoring wells located 3 ...
-
Soil Vapor Extraction (In Situ)
Introduction Soil vapor extraction (SVE) is an in situ unsaturated (vadose) zone soil remediation technology in which a vacuum is applied to the soil to induce the controlled flow of air and remove volatile and some semivolatile contaminants from the soil. The gas leaving the soil may be treated to recover or destroy the contaminants, depending on local and state air discharge regulations. ...
-
A Citizen`s Guide to Bioremediation
What is bioremediation? Bioremediation is a treatment process that uses naturally occurring microorganisms (yeast, fungi, or bacteria) to break down, or degrade, hazardous substances into less toxic or nontoxic substances. Microorganisms, just like humans, eat and digest organic substances for nutrients and energy. In chemical terms, 'organic' compounds are those that contain carbon and hydrogen ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you