Category Archives: Advanced Oxidation
Pilot Testing an Advanced Oxidation System at Salton Sea, Salton Sea Authority, Imperial County, California
As part of a feasibility study intended to identify technical options to restore the water quality in a lake, an advanced oxidation system pilot test was performed to demonstrate the technology, and obtain operations data for a system pre-design and cost estimate.
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.
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.
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
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. Continue reading
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
The site is an active oil and natural gas production property that currently re-injects approximately 135,000 barrels per day (BPD) of produced water. As a result of limited reinjection capacity, the facility was required to treat and discharge up to … Continue reading
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 … Continue reading
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 the site.
A gas station located in Southern California had impacted the groundwater with oxygenates. Prior to implementing a full-scale solution, a feasibility study was prepared to evaluate 9 in-situ remediation technologies and 9 ground-water treatment alternatives. Continue reading