Granular Activated Carbon GAC

GAC can be used to treat explosives-contaminated water, including process waters from the manufacture and demilitarization of munitions (pink water) and groundwater contaminated from disposal of these process waters. GAC is not used to treat red water produced during the manufacture of TNT. [Pg.153]

The Army conducted pilot-scale studies of continuous flow column GAC equipment at Badger AAP and Milan AAP. At both sites, GAC treatment was found to be effective for removing every type of explosive from the water and removing 2,4- and 2,6-DNT to below detection levels. [Pg.153]

The data obtained at Badger AAP were used to design a full-scale treat- [Pg.153]

Most carbon adsorption units use granular activated carbon (GAC). The powdered form of activated carbon (PAC) typically is less than 100 microns in diameter and may be used to reduce dioxins in incinerator emissions (2) and in the treatment of drinking water and wastewater treatment (see the section on "Activated Sludge"). [Pg.160]

Fig. 6. Breakthrough curves for aqueous acetone (10 mg 1" in feed) flowing through exnutshell granular active carbon, GAC, and PAN-based active carbon fibers, ACF, in a continuous flow reactor (see Fig. 5) at 10 ml min" and 293 K [64]. C/Cq is the outlet concentration relative to the feed concentration. Reprinted from Ind. Eng. Chem. Res., Volume 34, Lin, S. H. and Hsu, F. M., Liquid phase adsorption of organic compounds by granular activated carbon and activated carbon fibers, pp. 2110-2116, Copyright 1995, with permission from the American Chemical Society.

For organic contaminant removal from surface water packed-tower aeration, granular activated carbon (GAC), powdered activated carbon (PAC), diffused aeration, advanced oxidation processes, and reverse osmosis (RO). [Pg.9]

Granular Activated Carbon (GAC) - irregular shaped particles with sizes ranging from 0.2 to 5 mm. This type is used in both liquid and gas phase applications. [Pg.404]

Potable water treatment Granular activated carbons (GAC) installed in rapid gravity filters Removal of dissolved organic contaminants, control of taste and odor problems... [Pg.415]

Granular Activated Carbon (GAC) Adsorption (Liquid Phase) page -... [Pg.443]

Description of granular activated carbon (GAC) adsorption (liquid phase) remediation technology used to clean up pumped ground water contaminated with volatile/semi-volatile organics and PCBs. http //erb. nfesc. navy. mil/restoration/te. [Pg.443]

The carbon is available as a powder or as granular activated carbon (GAC) and is used up in the absorption process. It is either periodically replaced (say, every 12-24 months) or reactivated in a hearth furnace. [Pg.324]

Granular activated carbon (GAC) and peat adsorption are two tertiary wastewater filtration processes using GAC and peat, respectively, as the media for removing not only insoluble suspended solids, but also dissolved organic solids.8 Tables 7.14 and 7.15 report the adsorption efficiencies for... [Pg.282]

When granular activated carbons (GAC) are used as the filter media, the GAC filter can also remove dissolved organics (such as TTO, total toxic organics or VOC, volatile organic compounds).1011... [Pg.329]

Once the micropore surfaces of activated carbon are saturated with target material, the spent carbon must be replaced or regenerated. Granular activated carbon (GAC) is favored over powder activated carbon (PAC) in most cases, because the former is considered to be capable of regeneration and sustainable to flow, although the costs of both carbons and the cost of regeneration are high. [Pg.624]

Granular activated carbon (GAC) is commonly used to remove contaminants from drinking water. It has the ability to remove contaminants to very low concentrations. Brunotts and colleagues66 have studied 11 chemical spills and 18 groundwater contamination cases, which have shown that most... [Pg.642]

U.S. EPA, MTBE Case Study Sparks Solvent/Fuel Site Multi-Phase Extraction Using Fluidized Bed Reactor (FBR) and Granular Activated Carbon (GAC) Media for Treatment of Groundwater, United States Environmental Protection Agency, Washington, DC, July 2000. [Pg.1054]

The activated carbon is often chosen as granular carrier and is referred to as granular activated carbon (GAC) or biological activated carbon (BAC). This support is characterized by a strong propensity to adsorb the dyes and is a good candidate for biofilm formation, because of its natural organic matrix. The marked propensity to adsorb dyes contributes to increase the tolerance to shock loadings. In fact, under transient conditions the free surface of the AC acts as a temporary buffer for the dye, which is eventually released as dye disappears. [Pg.117]

Sirianuntapiboon S, Sansak J (2008) Treatability studies with granular activated carbon (GAC) and sequencing batch reactor (SBR) system for textile wastewater containing direct dyes. J Hazard Mater 159 404-411... [Pg.151]

Granular activated carbons, 4 747 Granular activated carbon (GAC) in advanced wastewater treatment, 25 909... [Pg.408]

T0346 Geotech Environmental Equipment, Inc., Scavenger Recovery Systems T0355 Granular Activated Carbon (GAC)—General... [Pg.23]

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