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Tag Archives: VOCs
Soil Vapor Extraction | Technology Description
Soil Vapor Extraction (SVE) is an in situ remediation technology designed to remediate soils impacted with volatile organic compounds (VOCs) including gasoline, and chloroethenes. This technology works by extracting soil vapor at a high vacuum using subsurface wells, then treating the soil vapor prior to discharge.
Posted in All Posts, Remediation, Soil Remediation, Technology
Tagged Design, maintenance, operation, Operation and Maintenance, soil remediation, soil vapor extraction, VOC, VOCs
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Dual-Phase Extraction System: Permitting, Design, Construction, and Operation | Industrial Redevelopment Berkeley, CA
The soil and groundwater at a former industrial building located in Berkeley, California were affected with trichloroethene and gasoline. A dual-phase extraction system was permitted, designed, and constructed for site remediation. The site underwent remediation while the developer remodeled and repurposed nearly 500,000 square feet for commercial, retail, office, and light industrial uses.
Posted in All Posts, Groundwater Remediation, Projects, Remediation, Water Treatment
Tagged Design, Dual Phase Extraction, Groundwater Remediation, NPDES, PCE, TCE, VOC, VOCs
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Air Sparge | Technology Description
Air sparge is an in situ groundwater remediation technology were air is injected into the groundwater to increase dissolved oxygen. Air sparge is used to remediate impacted groundwater with volatile organic compounds (VOCs), most commonly gasoline range organics.
Posted in All Posts, Groundwater Remediation, Remediation, Technology
Tagged air sparge, gas stations, Gasoline, groundwater, remediation, VOC, VOCs
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Technical Assistance for CERCLA Sites
Technical support was provided to two groundwater operating units. The operating units are designed to remediate the groundwater impacted with VOCs at two CERCLA sites.
Posted in All Posts, Groundwater Remediation, Projects, Remediation
Tagged aerospace, Air Emissions, CERCLA, Compliance, EPA, GAC, LPGAC, Operation and Maintenance, PCE, site, Sites, Superfund, TCE, Technical Support, VOCs, VPGAC
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Advanced Oxidation using Ultraviolet Light and Hydrogen Peroxide
Advanced oxidation systems using hydrogen peroxide (peroxide) and ultraviolet (UV) light are designed to inject hydrogen peroxide in controlled ratios to the water, then mixing the peroxide, and exposing the water and peroxide solution to UV radiation to form hydroxyl radicals (•OH). Peroxide and hydroxyl radicals are strong oxidizing agents capable of oxidizing 1,4-dioxane and several volatile organic compounds (VOCs). The advanced oxidation process is suitable for groundwater remediation with pump-and-treat, water treatment, and industrial wastewater treatment. Treatment with UV/Peroxide may offer technical advantages over ozone based treatment systems.
Posted in Advanced Oxidation, All Posts, Groundwater Remediation, Industrial Wastewater, Remediation, Technology, Water Treatment
Tagged advanced, groundwater, oxidation, peroxide, remediation, ultraviolet light, UV, VOCs
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Site Closure Plan and Closure Strategy and Regulatory Support, Former Aerospace Site, Southern California
A soil vapor extraction system located at former aerospace site in Southern California had operated for a number of years. The client requested a strategy to obtain regulatory site closure. In response, a site closure plan was prepared outlining a schedule and a list of technical and administrative requirements to support site closure. The closure plan also listed methods and procedures to demonstrate that site-specific cleanup concentrations were protective of human health and groundwater.
Posted in All Posts, Projects, Remediation, Soil Remediation
Tagged closure, Contaminated, gas, Gasoline, Health, PCE, plan, retail, Risk, site, Sites, soil, Stations, Surveys, TCE, VOC, VOCs
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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 follow-up work included preparing a detailed design, preparing NPDES permits for storm water discharge, process flow diagrams, layout diagrams, and process and instrumentation diagrams. Continue reading
Posted in Advanced Oxidation, All Posts, Groundwater Remediation, Projects, Remediation
Tagged 14-dioxane, advanced, former, groundwater, industrial, oxidation, VOC, VOCs
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