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Category Archives: Remediation
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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Dual-Phase Extraction (DPE) | Technology Description
Dual-Phase Extraction (DPE) is a remediation technology used to remediate soils and groundwater affected with volatile organic compounds (VOCs). This technology works by extracting soil vapor and groundwater from the subsurface, then treating the vapors and water prior to discharge.
Posted in All Posts, Groundwater Remediation, Remediation, Soil Remediation, Technology
Tagged dual phase, extraction, groundwater, remediation, system
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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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Lubricant Oil Spill Response, South Gate, California
An emergency cleanup response was executed after 7,000 gallons of lubricant oil were released. The release occurred as a result of railroad tank car colliding with a road tanker. The release affected soils in the vicinity of the incident, and impacted a nearby storm drain.
Posted in All Posts, Projects, Remediation, Soil Remediation
Tagged dig-and-haul, disposal, excavation, remediation, soil, soil thermal remediation, thermal, thermal remediation of soil
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Remediation of a Former Marine Terminal, Southern California
After a marine terminal was demolished, several site assessments revealed that soil and groundwater at the site were affected with petroleum hydrocarbons and lead. An interim remedial action plan (IRAP), a remedial action plan (RAP), and a sampling and analysis plan (SAP) were prepared and implemented to protect harbor water, and remediate the site.
Posted in All Posts, Groundwater Remediation, Projects, Remediation, Soil Remediation
Tagged groundwater, Harbor, IRAP, LNAPL, plan, RAP, remedial, remediation, sampling, skimming
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Fixed-Price Guaranteed Remediation Project, Former Aerospace Site Impacted with VOCs, Southern California
A former aerospace manufacturing site was impacted with perchloroethylene (PCE) and trichloriethylene (TCE) in soil gas. The operation and maintenance of a soil vapor extraction (SVE) system was outsourced through closure.
Posted in All Posts, Projects, Remediation, Soil Remediation
Tagged aerospace, Contracts, Environmental, Fixed, groundwater, Manager, Price, Program, Project, remediation, soil
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Groundwater Remediation using Air Sparge | Pilot Testing, Design, Construction, and Operation
Air sparge is an in situ groundwater remediation technology which uses vertical or horizontal wells to transfer a continuous or pulsed flow air into the groundwater. The purpose of air sparge system is to reduce the concentrations of volatile organic compounds (VOCs) in groundwater through enhanced volatilization, and mass transfer of VOCs and oxygen. Continue reading
Posted in All Posts, Groundwater Remediation, Remediation
Tagged air, Design, groundwater, in-situ, maintenance, operation, pilot-testing, remediation, reports, sparge
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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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