Category: Groundwater Remediation
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Ion Exchange Systems for Removal of Metals and Inorganics
Description Ion Exchange is a process in which ions of a species are displaced from an insoluble exchange material (ion exchange resin) by ions of a different species in water. The removal of target ions is achieved through commercially available ion exchange resins that exchange target anions for chlorine (Cl-) or hydroxide ion (-OH), and…
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Biological Reduction of Selenium, Nitrates, Chromium, and Perchlorate
Description of the Biological Reduction Process Biological treatment is used in a wide range of water and wastewater treatment applications for the removal of biodegradable constituents. The biological treatment process can also be modified and used to reduce nitrates, oxides of selenium, hexavalent chrome, and perchlorate in water. The reduction of nitrates and perchlorate can…
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Water Treatment | Advanced Oxidation with Ozone Peroxide
The advanced oxidation process is a proven technology for the oxidation of a wide range of compounds in water and groundwater impacted with BTEX, MtBE, TPH-g, total petroleum hydrocarbons as diesel (TPH-d), tert-butyl formate (TBF), tert-butyl alcohol (TBA), tert-amyl methyl ether (TAME), diisopropyl ether (DIPE), polyaromatic hydrocarbons (PAHs), trimethylbenzene, 1,4-dioxane, trichloroethylene (TCE), perchloroethylene (PCE), 1,2-dichloroethene…
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Improving Environmental Process Operations
To improve the operation of environmental processes, we identify process improvement opportunities which include process automation and control, process monitoring and data logging, process redesign, and operator training.
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Remediation of Soil and Groundwater | Underground Storage Tanks in California
We have extensive experience remediating soil and groundwater sites impacted by underground storage tanks (UST), UST decommissioning, soil excavation, tank and soil disposal, groundwater monitoring programs, health risk assessment, and closure support. Tank and Contaminant Source Removal Tank extraction services include permitting tank extraction with the corresponding regulatory agency (e.g., the Fire Department, County), tank…
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Feasibility Study, Remediation of Oxygenate Impacted Groundwater, Retail Gas Station, California
A gas station located in Southern California had contaminated the groundwater with oxygenates. The client was in need to contain plume of MTBE and TBA, which was migrating to an environmentally sensitive area. A feasibility study evaluating nine remediation scenarios was conducted to identify the best remediation option.
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Treatment of Groundwater Impacted with 1,4-Dioxane, Westlake Village, California
The development plan for a former media manufacturing site impacted with volatile organic compounds (VOCs) and 1,4-Dioxane in groundwater included the construction of a large development in Westlake Village California. A feasibility study concluded that a pump-and treat system consisting of an advanced oxidation process combined with liquid phase activated carbon (LPGAC) was required. The…
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Peer Review of Technical Specifications and Design, Remediation of a Waterfront Property, Long Beach, California
The soil and groundwater at a waterfront property were heavily impacted with VOCs including chlorinated hydrocarbons. A remedial action plan outlined remediation activities at the Site consisting of soil excavation, offsite thermal treatment, soil disposal, and installation/operation of remediation systems. A peer review of technical specifications and design was commissioned to check for errors…
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Bench Scale Testing of Advanced Oxidation for MTBE
The Merced County of Environmental Health office ordered a gas station located in Los Banos, California to mitigate a plume of MTBE. To mitigate the MTBE in groundwater, an advanced oxidation system was proposed for the site. A pilot test was performed to assess the impact of ozone on naturally occurring chromium in soil at…