Category Archives: Technology

Dual Phase Extraction (DPE) | Technology Description

Dual-Phase Extraction (DPE) is a remediation technology for soils and groundwater impacted with volatile organic compounds (VOCs). This technology works by extracting soil vapor and groundwater from the subsurface at a high vacuum, then treating the vapors and water prior to discharge.

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Air Sparge | Technology Description

Air Sparge
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.

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Soil Vapor Extraction | Technology Description

Soil Vapor Extraction
Soil Vapor Extraction (SVE) is an in situ remediation technology designed to remediate soils impacted with volatile organic compounds (VOCs) including gasoline, and chlorinated hydrocarbons. This technology works by extracting soil vapor at a high vacuum using subsurface wells, then treating the soil vapor prior to discharge.

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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.

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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 … Continue reading

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Groundwater Remediation with Advanced Oxidation

The advanced oxidation process is a proven technology for the remediation groundwater impacted with Benzene-toluene-ethylbenzene-xylenes (BTEX), methyl tert-butyl ether (MtBE), TPH-g, 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 (1,2-DCE), 1,1-dichloroethene (1,1-DCE), vinyl chloride, and tetrahydrofuran. Continue reading

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