Showing results for: in-situ treatment Articles
-
Former Wellsite Sump - In-Situ Chemical Oxidation - Case Study
Former admixed drilling sump at an abandoned wellsite. Surficial soil impacts were excavated and removed from Site. Shallow groundwater limited excavation and required in-situ treatment method for remaining soil impacts and groundwater impacts. Lithology of the target treatment zone is saturated silty sand, creating a pathway for contaminant ...
-
Project - Large in-situ groundwater treatment plant - Oil refinery, Saudi Arabia
Industry: Oil and Gas Timeframe: 9 Months Location: Saudi Arabia Value: €540K Challenge Geostream was asked to deliver a large in-situ groundwater treatment plant for a pilot trial on an oil refinery. The plant would target significant dissolved phase hydrocarbon contamination and LNAPL in groundwater across the site, using circa 100 recovery/sparge well points. Before installation ...
By Geostream UK
-
The no. 1 choice for improving the performance of soil and groundwater remediation
Adsorption of Contamination The number one challenge associated with most site remediation designs and methodologies is that 90% to 95% of all environmental contaminants; including hydrocarbons (LNAPL), chlorinates (DNAPL), and heavy metals; are present in a sorbed (i.e., absorbed or adsorbed) phase onto soil and bedrock surfaces within both saturated and unsaturated zones. As such, the absorbed ...
-
Common Treatment Technologies for Inorganics in Ground Water, Surface Water, and Leachate
It may be necessary to know other subsurface information to remediate inorganics in ground water, surface water, and leachate. Treatability studies are usually necessary to ensure that the contaminated ground water can be treated effectively at the design flow. A subsurface geologic characterization would be particularly important to characterize the effects of adsorption and other processes of ...
-
Southern California Edison Santa Barbara I MGP in-situ ozone treatment groundwater progress monitoring
Southern California EdisonSanta Barbara - Former MGP siteIn-situ Ozone TreatmentPiper Case History #1-------------------------------------------------------Problem: Former MGP site containing VOC and PAH contamination needed aggressive soil and groundwater remediation.Project Solution: • Phase I - Limited Soil Excavation near Former Gasholder• Phase II – In-Situ Ozone Sparging for Deep Soils• ...
-
In Situ Biological Treatment for Ground Water, Surface Water, and Leachate
The main advantage of in situ treatment is that it allows ground water to be treated without being brought to the surface, resulting in significant cost savings. In situ treatment, however, generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in aquifer characteristics and because the efficacy of the process is more ...
-
In Situ Thermal Remediation of DNAPL and LNAPL Using Resistance Heating
Electrical resistance heating (ERH) is an in situ thermal treatment for soil and groundwater remediation that can reduce the time to clean up volatile organic compounds (VOCs) from years to months. The technology is now mature enough to provide site owners with both performance and financial certainty in their site-closure process. The ability of the technology to remediate soil and groundwater ...
-
Edible Oil Barriers for Treatment of Perchlorate Contaminated Groundwater
An EOS® biobarrier was designed and implemented to remediate perchlorate contaminated groundwater. The report describes the site characterization, design steps, implementation, monitoring results and lessons learned from this effective remedial approach. EXECUTIVE SUMMARYThis final technical report documents the demonstration of emulsified edible oils for remediation of perchlorate in ...
By Redox Tech
-
Liberating contaminants for easy recovery
The number one challenge associated with most site remediation designs and methodologies is that 90-95 per cent of all environmental contaminants are present in an adsorbed phase onto soil and bedrock surfaces within both saturated and unsaturated zones. Contaminants, including hydrocarbons (LNAPL), chlorinates (DNAPL) and heavy metals, are sorbed onto the substrates and so have reduced mobility ...
-
Protocol for Enhanced In Situ Bioremediation Using Emulsified Edible Oil
An in-depth discussion of the EOS® patented technology and its usefulness for site remediation is presented. Details of how the technology works, design considerations as well as strengths and limitations of the technology are presented. 1.1 INTRODUCTION Management of groundwater contaminated with chlorinated solvents, perchlorate, and explosives is one of the Department of Defense’s ...
By Redox Tech
-
A 2006 GLOBE award winner
The GLOBE Corporate Award for Technology Innovation and Application is presented is to a company that has demonstrated outstanding technical ingenuity in the development and/or application of an innovative technology or process with a significant environmental application. This year’s winner, Ivey International Inc., has developed a surfactant remediation technology (Ivey-sol®) solution that ...
-
In-Situ Anaerobic Remediation of Perchlorate-Impacted Soils
AbstractARCADIS is currently leading the development, evaluation, and selection of a final groundwater remedy for a 94-acre manufacturing facility in the western U.S. This facility has produced small explosives and vehicular safety products since 1957. As a result of historic operations, soil and groundwater at the site have been impacted by perchlorate. To date, remediation efforts have been ...
By Arcadis
-
Introduction to Ozone Injection Technology
Untitled Document Ozone is a highly reactive chemical that has proven to be effective in destroying a wide variety of organic chemicals, including MtBE and chlorinated VOCs. Ozone destroys organic chemicals through the process of chemical oxidation, which breaks the targeted organic chemical down into carbon dioxide and water. Ozone is commonly used in aboveground ...
-
Common Treatment Technologies for Fuels in Ground Water, Surface Water, and Leachate
It may be necessary to know other subsurface information to remediate fuels in ground water. Treatability testing to characterize contaminant biodegradability and nutrient content may be needed for any biodegradation technology. A subsurface geologic characterization would be particularly important to characterize the migration of NAPLs. Recovery tests are usually necessary to design a ...
-
What is Environmental Remediation?
Environmental remediation is cleaning up hazardous substances by removing, treating, and containing pollution or contaminants from environmental media like soil, groundwater, and sediment. This process is crucial for protecting the environment and public health by reducing the presence of harmful substances[1][2][3]. Remediation can involve various methods categorized as ex-situ (excavation and ...
-
Remediating Soil While Preserving Soil Structure
The importance of soil cannot be overstated. It’s the basis of agriculture, and as a result, is a critical component of sustaining human life. According to the EPA: “Productive soils, a favorable climate, and clean and abundant water resources are all essential for growing crops, raising livestock, and for ecosystems to continue to provide the critical provisioning services that ...
-
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 ...
-
Data Requirements for Ground Water, Surface Water, and Leachate
It is common for ground water to be contaminated with the water soluble substances found in overlying soils. Many of the required data elements are similar, e.g., pH, TOC, BOD, COD, oil and grease, contaminant identification and quantification, and soil and aquifer characterization. Additional water quality monitoring data elements include hardness, ammonia, total dissolved solids, and metals ...
-
In situ Chemical Oxidation: An Innovative Groundwater Remediation Technology
A promising new technology, in situ Chemical Oxidation (ISCO), has the potential to supplant the more widely used pump-and-treat groundwater remediation technology by destroying groundwater contamination in situ (in place). ISCO is the process of oxidizing contaminants in the groundwater and soil by injecting water containing high concentrations of an oxidant to the site of the contamination. ...
By AECOM
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you