Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Dual-phase extraction

T0211 DRL Environmental Services, Enco-Tec RS-30 Thermal Desorption T0212 Dual-Phase Extraction—General... [Pg.15]

T0212 Dual Phase Extraction—General T0236 Electrokinetic Remediation—General... [Pg.22]

In 1995, PF was used with enhanced dual-phase extraction in a full-scale application at a site in central New Jersey. As a result of manufacturing activities at the site, groundwater had become contaminated with TCE. Twenty vapor extraction wells and a 500-ft /min vapor system were used to treat 1.5 acres to a depth of 30 ft. According to ARS Technologies, total costs were 1.1 million (D22628I, p. 1). [Pg.379]

Croy manufactures a series of SFR pumps that are also for sale (D17804V, p. 6-10). Croy offers a three-cylinder, diesel-driven dual-phase extraction unit that can be leased for pilot tests. As of 1998, the unit rented for 1200 per week, and its purchase price was 20,750 (D17804V,... [Pg.484]

Dual-phase extraction—also called two-phase vacuum extraction, dual-vacuum extraction, or vacuum-enhanced extraction—is an in situ, commercially available technology for the treatment of soils and groundwater contaminated with volatile organic compounds (VOCs) and semi volatile organic compounds (SVOCs). [Pg.505]

Dual-phase extraction accelerates site remediation by simultaneously extracting contaminated liquid and soil vapor from the subsurface. The technology can be used to treat soil or groundwater contaminated with chlorinated solvents and petroleum hydrocarbons. [Pg.505]

Dual-phase extraction cannot remediate heavy chlorinated compounds, pesticides, or heavy hydrocarbons including polychlorinated biphenyls (RGBs), dioxin, fuel oil No. 6, or metals (with the possible exception of mercury). High-velocity pump systems (such as liquid ring vacuum pumps) tend to form emulsions, especially when diesel fuel is part of the recovered fluids. The problem of emulsion can be solved with prepump separation or a de-emulsification unit. [Pg.505]

The U.S. Department of Defense (DOD) estimated the cost of dual-phase extraction to range from 85,000 to 500,000 per site in 1994 (D10925B, p. 4-146). [Pg.505]

The costs of three sizes of a proprietary dual-phase extraction system were estimated in 1991. The costs associated with Radian International s AquaDetox/SVE system (see summary T0641) are detailed in Table 1. The system uses a moderate vacuum stripping tower and low-pressure... [Pg.505]

Biostimulation combined with dual phase extraction... [Pg.185]

See other pages where Dual-phase extraction is mentioned: [Pg.1011]    [Pg.1048]    [Pg.23]    [Pg.43]    [Pg.49]    [Pg.56]    [Pg.62]    [Pg.99]    [Pg.105]    [Pg.132]    [Pg.136]    [Pg.212]    [Pg.212]    [Pg.213]    [Pg.247]    [Pg.249]    [Pg.254]    [Pg.285]    [Pg.288]    [Pg.293]    [Pg.298]    [Pg.378]    [Pg.472]    [Pg.484]    [Pg.505]    [Pg.505]   
See also in sourсe #XX -- [ Pg.1011 , Pg.1040 ]



SEARCH



Extract phase

Phase extraction

Solid-phase extraction dual phases

© 2024 chempedia.info