Technology

Technology

A technology for site remediation or water treatment is identified based selection criteria described in regulatory guidance, or feasibility studies. The selection criteria is affected by the types of chemicals released to the environment, presence of free product, concentrations of chemicals of concern, the distribution of chemical impacts in media (soil and groundwater), depth of chemical impacts, site lithology, geochemistry, and evidence of chemical degradation through biological or abiotic mechanisms.


Water Treatment | Advanced Oxidation with Ozone Peroxide

Advanced Oxidation 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 (1,2-DCE), 1,1-dichloroethene (1,1-DCE), vinyl chloride, and tetrahydrofuran.

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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


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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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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Contaminants

Metals

Chromium (Cr), Hexavalent Chromium (CrVI), Selenium (Se), Arsenic (As)

Inorganic Compounds

Nitrates (NO3-), Nitrites (NO2-), Perchlorate (ClO4-)

Industrial and Remediation

Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), Color, Oil and Grease (O&G), Phosphorous (P), Ammonia (NH3), Volatile Organic Compounds (VOCs), Tetrachloroethylene (PCE), Trichloroethylene (TCE), Vinyl Chloride and 1,4-Dioxane

Petroleum

Oil and Grease (O/G); Light Non-Aqueous Phase Liquid (LNAPL); Total Petroleum Hydrocarbons (TPH); Methyl tert-Butyl Ether (MtBE); Benzene, Toluene, Ethyl-benzene, Xylene (BTEX)