Because, unlike other oxidants used in ISCO, it is a gas, it needs to be injected into the contamination site from the bottom rather than the top. Both of our ISCO technologies employ unique and powerful catalysts to maximize treatment longevity, ensure efficient oxidation, and promote safe chemical use in the field.REGENESIS reviews data from dozens of sites each week where ISCO is being considered. can be used. Our highly experienced professionals work with our clients to develop technically rigorous and cost-effective solutions for ISCO treatment of a variety of contaminants at sites with diverse conditions. The factors that affect treatment wall application and performance are similar to the factors that effect the performance of permeable reactive barriers.The ISCO technology has been tested many times in the field. Ozone is delivered (sparged) as a gas in either a dry air or oxygen carrier gas. Chemical remediation options include the following (and more):ISCO and ISCR remediation options are available as standalone solutions, but can also be used in conjunction with Chemical remediation options include the following (and more):ISCO and ISCR remediation options are available as standalone solutions, but can also be used in conjunction with This shortens the time required for the contaminant to be oxidized. Monitoring of gases given off during oxidation can also help determine if contaminants are being destroyed. In order to apply this method in-situ and in deep soil, the oxidant must be pumped to the point of mixing using a kelly bar (a piece of earth drilling equipment), or appropriate piping to the place where the soil needs to be oxidized.

II.

Another version of this delivery system is the use of a disconnected series of vertical wells to inject the oxidant into the ground water. We have also developed injection tool strings that minimize exposure to our operators during injection. Wickramanayake (Chairs), Remediation of Chlorinated and Recalcitrant Compounds—2010.

This ensures contact while taking into consideration oxidant residence times, kinetics and site hydraulics.

ISCO is a technology appropriate for soil or groundwater remediation, and is applied by injecting chemical oxidants into the contaminated area. Cascade has supported numerous large projects associated with hexavalent chrome or chlorinated solvents groundwater contamination.Maximize your return on remediation with Cascade. Currently, an oxidant is injected into the contaminated site and is distributed by the injection pressure, turbulence and advection. We have also developed injection tool strings that minimize exposure to our operators during injection. Seventh International Conference on Remediation of Chlorinated and Recalcitrant Compounds (Monterey, CA; May 2010).

For worker safety, site that are using ozone as the oxidant must test ozone levels in the air periodically because ozone has adverse respiratory effects.

The When applied in the field, persulfate must first be activated (it must be turned into the sulfate radical) to be effective in the decontamination.

this limitation at sites which have substantial The ISCO delivery technology and reagents also could be enhanced. Again, it is not very soluble and stays in gas form in the water, which makes ozone prone to nonuniform distribution and rising up to the top of contamination site by the shortest routes rather than traveling through the entire material. ISCR remediation is undertaken by injecting liquid chemically reductive additives to the contaminated area, or alternately by inserting chemical reductants in solid form in the path of the plume.Chemical reduction, either by itself or utilized in a combined biotic remedy, provides the reactivity and persistence needed for effective treatment of metals and solvents in both source areas and plumes. bucket mixing), or specialized soil mixing tools (i.e. In Situ Chemical Oxidation Overview.

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