Use of ironbased technologies in contaminated land and. The applicability of these technologies for the remediation of contaminated soil is also discussed. A directcurrent electric field is imposed on the contaminated soil to extract the contaminants by the combined mechanisms of electroosmosis, electromigration, and or electrophoresis. Remediation technologies for soils and groundwater. In soils, mercury remediation can be technically challenging and costly, depending on the subsurface mercury distribution, the types of mercury species, and the regulatory requirements. Electrochemical remediation technologies for polluted soils, sediments and groundwater edited by krishna r. Electrochemical remediation technologies for polluted soils, sediments and groundwater book january 2009 with 1,177 reads how we measure reads. Environmental protection agency cincinnati, ohio 45268. Remediation technologies for soils and groundwater books.
Permeable reactive barriers prb as an alternative remedial option 15 minutes 7. Remediation technologies for soils and groundwater provides a comprehensive and thorough overview of conventional engineered processes and technologies used for the remediation of contaminated sites. Potential electrokinetic remediation technologies of laboratory. Electrochemical remediation technologies for polluted soils, sediments and groundwater, chapter 17, pp. This paper introduces the chemistry of mercury and its implications for in situ mercury. In an ideal case, depending on the type of contaminants on the site, naturally occurring microorganisms degrade organic compounds to carbon dioxide and water.
Decontamination of petroleumcontaminated soils using the. This method involves the application of direct current of low density to the contaminated site. Theme description highly polluted sites are present all over the world and particularly in countries that, in the last years, have seen uncontrolled and unplanned economic development. Electrochemical remediation is a promising remediation technology for soils contaminated with inorganic, organic, and mixed contaminants. Petroleum hydrocarbon compounds attach to soil components and are difficult to remove and degrade. Soils contaminated with organic substances is an important issue across europe. Anolyte and catholyte solutions are circulated to deliver iron ions to anodes and to deliver peroxide ions to cathodes in the medium. Electrochemical remediation technologies for polluted soils, sediments and groundwater reddy, k. Thus, electrokinetic remediation is a developing technology which intends to separate and extract radionuclides, heavy metals and organic contaminants from saturated or unsaturated soils, sludges, sediments and groundwater. The thermodynamic conditions under which the lixiviant could be effective were. Electrochemical remediation technologies for polluted soils, sediments and groundwater.
Mauro capocelli, researcher, university ucbm rome italy 1. Several economic activities are still causing soil pollution in europe. The first pump determines the water quantity which circulates through the unsaturated zone. Contamination of sediments with heavy metals hms is a worldwide environmental issue, due to the negative ecological effects of hms. Groundwater remediation technologies analysis center 615 william pitt way pittsburgh, pa 15238 412 8265511 800 3731973. Abstract direct current technologies dcts are remediation techniques for contaminated soil, in which an electrical field is created in the polluted medium by applying a lowvoltage direct.
This report provides a comprehensive and thorough overview of conventional engineered processes and technologies used for the remediation of contaminated sites. Remediation technologies for soils and groundwater alok bhandari, rao y. Remediation technologies for contaminated sites springer. The applicability of electrical current based treatment for the. Mercury from anthropogenic activities is a pollutant that poses significant risks to humans and the environment.
This innovative technology evaulation report summarizes the results of the evaluation of the electrochemical remediation technologies ecrts process, developed by p2soil remediation, inc. Electrochemical processes for the remediation of wastewater and contaminated soil. Electrokinetic remediation of mercurycontaminated soils using. Review of remediation technologies for sediments contaminated. Principles of electrokinetic remediation environmental science. Due to the minimal environmental impact and low cost of implementation, biological remediation technologies have become increasingly popular during the last few years. Dependent on the properties of the soil, the diameter of the sphere of influence of a vlr well can extend for up to 20 metres. Aug 01, 2010 read electrochemical remediation technologies for polluted soils, sediments and groundwater. Download for offline reading, highlight, bookmark or take notes while you read electrochemical remediation technologies for polluted soils, sediments and. Read electrochemical remediation technologies for polluted soils, sediments and groundwater. This evaluation was conducted between august 2002 and march 2003 in cooperation with the washington state department of ecology. Pdf electrochemical remediation technologies for polluted soils. Recommended citation ferrarese, elisa and andreottola, gianni 2010 application of electrochemical techniques for the remediation of.
National risk management research laboratory office of research and development u. In recent years there has been considerable interest in the application of electrokinetic processes, especially for the remediation of low permeability contaminated soils and groundwater. Electrochemical remediation technologies for polluted soils, sediments and groundwater provides a systematic and clear explanation of fundamentals, field. Request pdf electrochemical remediation technologies for polluted soils, sediments and groundwater introductionoverviewelectrochemical transport in bulk. Disclosed are methods for electrochemically remediating soil, clay or other media contaminated with organic pollutants using fentons reagent. Special issue environmental remediation of soils and.
Thus, remediating sediments polluted by hms is a crucial activity within the full aquatic ecosystem remediation process, and. Treatability test for the implementation of a remediation technology 10 minutes 5. Modeling edta enhanced electrokinetic remediation of lead contaminated soils, chemosphere, 60 2005. The use of ironbased technologies in contaminated land and groundwater remediation is a rapidly developing field, with a range of techniques proposed which make use of iron as a reductant, or as a sorbent, which have been tested at various scales of application. In the methods, anodes and cathodes are provided in wells formed in the contaminated medium. Get your kindle here, or download a free kindle reading app. This committee report s extensive illustrations, tables, and case studies along with it s simple to follow writing style, makes it appropriate for. Application to a copper spiked kaolin, chemosphere, 542004.
Insitu remediation of soil, sediments, and groundwater. Electrokinetic remediation of mercurycontaminated soils. In this research, enhanced electrokinetic remediation of hgscontaminated soils using i2i lixiviant was investigated using benchscale electrokinetic cells. Application of electrochemical techniques for the remediation. In situ reduction of hexavalent chromium in groundwater and surface soil using acidified ferrous sulfate. Electrokinetic remediation of zinc and copper contaminated. Download for offline reading, highlight, bookmark or take notes while you read electrochemical remediation technologies for polluted soils, sediments and groundwater. The efficiency of metal removal and the electricity consumption in the electrokinetic treatment of soils largely depend on electric and physicochemical conditions. Proprietary acdc converters produce a lowvoltage, lowamperage electrical field that polarizes the soil or sediment soil, causing. Welcome to gwrtac the groundwater remediation technologies analysis center gwrtac is a specialized national technology transfer and information center focusing on the important issue of groundwater. This paper included an experimental application that compared three methods of remediation of contaminated sites, based on electric fields. Influence of coupled electrokineticphytoremediation on. The goal of electrokinetic remediation is to effect the migration of.
Epa625r99012, office of research and development, u. In situ remediation technologies for mercurycontaminated soil. The management of contaminated land and groundwater is a major current environmental issue, where recent and historical industrial and urban activities have led to the presence of elevated concentrations of a wide range of contaminants in soils, sediments and surface and groundwaters, affecting the health of millions of people worldwide. Remediation technologies for soils and groundwater may 20. Aug 04, 2009 electrochemical remediation technologies for polluted soils, sediments and groundwater ebook written by krishna r. Process design and cost estimating of proven technologies march 20 chemical treatment technologies remediation technologies for soils and groundwater may 20. Currently, there are different remediation technologies for contaminated soils, but the selection of the best technology must be not only the treatment efficiency but also the energy consumption. Sponsored by the remediation technologies for soils and groundwater task committee of the environmental council of the environmental and water resources institute of asce. A directcurrent electric field is imposed on the contaminated soil to extract the contaminants by the combined mechanisms of electroosmosis, electromigration, andor electrophoresis.
Electrochemical remediation technologies ecrts in situ remediation of contaminated marine sediments. Thus, remediating sediments polluted by hms is a crucial activity within the full aquatic ecosystem remediation process. Insitu remediation of mercurycontaminated soils, by electrokinetic or other means, is difficult because of the low solubility of mercury and its compounds. Proceedings of the abiotic in situ technologies for groundwater remediation conference, dallas, report no.
Electrokinetic remediation dc electro thermal soil remediation the integration of dc electrical resistive heating, electroosmosis and insitu zerovalent iron reductive technologies for the remediation of clays and glacial tills contaminated with chlorinated solvents. Physicochemical remediation technologies 20 minutes 6. Electrochemical remediation technologies for polluted soils, sediments and groundwater provides a systematic and clear explanation of fundamentals, field applications, as well as opportunities and challenges in developing and implementing electrochemical remediation technologies. Research on progress in combined remediation technologies of heavy metal polluted sediment. Remediation of multiply contaminated ground via permeable.
Electrochemical remediation technologies for polluted soils, sediments and groundwater edited by reddy, k. Electrochemical remediation technologies for polluted soils, sediments and groundwater krishna. Ottosen l m, hansen h k and jensen p e 2009 electrochemical remediation technologies for polluted soils, sediments, groundwater ed k r reddy and c. Reddy, claudio cameselle electrochemical remediation technologies for polluted soils, sediments and groundwater. Potential electrokinetic remediation technologies of laboratory scale into field application methodology overview. Insitu remediation of soil, sediments, and groundwater contaminated by hazardous substances author. Classification of soil remediation technologies 10 minutes 4. Electrochemical remediation technologies for polluted. Electrochemical treatment is a physicochemical treatment that has gained acceptance as an alternative method, for the remediation of organic contaminated soils comparing with the traditional methods as bioremediation and chemical oxidation. Groundwater remediation technologies analysis center a national center providing information on groundwater reittediaiioiitechnologi. Electrokinetic treatment of contaminated marine sediments. In some areas, these are the main causes of pollution, or the second after contamination from waste disposal. Remediation technologies for soils and groundwater edition.
Electrochemical technologies are emerging as important approaches for effective and efficient pollution remediation, both on their own and in concert with other remediation techniques. Groundwater remediation technologies analysis center. Saice remediation technologies for soils and groundwater. Electrochemical remediation technologies ecrts use a proprietary acdc electrical signal to mineralize organic compounds e. Electrokinetic remediation is a useful technique for the removal of ionic contaminants in soils, sediments, sludges, and other solid porous matrixes. Sediments are an important component of aquatic ecosystems, impacting the transformation and transfer of hms in the environment.
Twodimensional model for soil electrokinetic remediation of heavy metals. Abstract this innovative technology evaulation report summarizes the results of the evaluation of the electrochemical remediation technologies ecrts process, developed by p2soil remediation, inc. Electrochemical processes for the remediation of wastewater. The application of negative pressure causes upwell, water flushing the contaminated soil is enriched with contaminants and enters the well through the lower screen. An unmatched reference on electrochemical technologies for soil, sediment, and groundwater pollution remediation. Proprietary acdc converters produce a lowvoltage, lowamperage electrical field. A bhandari, r surampalli, p champagne, s ong, r tyagi publisher.
Physical treatment technologies remediation technologies. Electrochemical remediation technologies for polluted soils, sediments and groundwater krishna r. Electrochemical remediation technologies for polluted soils. Electro chemical remediation technologies ecrts are phenomena. Electrochemical remediation technologies for polluted soils, sediments. May 24, 20 remediation technologies for soils and groundwater. Ijerph free fulltext remediation of soil polluted by. Currently, there are different remediation technologies for contaminated soils, but the selection of the best technology must be not only the treatment.
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