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Showing 1 to 20 of 81 for “"Granular Activated Carbon"”.
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Reduction of Aqueous Free Chlorine With Granular Activated Carbon
Made available in DSpace on 2014-12-13T19:31:24Z (GMT). No. of bitstreams: 1 7606980.pdf: 3584396 bytes, checksum: 054ad3e673c183d0862395564efc5231 (MD5) Previous issue date: 1975
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Granular activated carbon pretreatment for the removal of trihalomethane precursors
Granular activated carbon (GAC) pretreatment was evaluated for the removal of trihalomethane (THM) precursors from a surface water supply, the Occoquan Reservoir, in northern Virginia. The carbon contactors were operated in the upflow mode at flow rates of 2, 4, and 6 gpm which provided empty bed …
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The effects of metals on thermal regeneration of granular activated carbon
… was to explore how accumulated metals on granular activated carbon (GAC) affected thermal regeneration, and to determine whether thermal regeneration could restore the spent GAC's virgin adsorption capacity, despite the metals.
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Predicting the removal of atrazine by powdered and granular activated carbon
… removal in full scale and pilot scale powdered activated carbon (PAC) and granular activated carbon (GAC) adsorption processes.
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Phenol oxidation on the surface of granular activated carbon under water treatment conditions
Chemical activity of granular activated carbon (GAC) toward adsorbed phenol were investigated in a fixed bed column. After adsorption from aqueous solution, phenol was oxidized to carbon-carbon (C-C) and carbon-oxygen (C-O) bonded dimers as well as an oxidized compound of uncertain structure …
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Biodegradation of tert-butyl alcohol (TBA) using biological granular activated carbon (bio-GAC)
… continuous-flow columns containing biologically activated granular carbon (bio-GAC), simulating an ex-situ remedial system. YZ2 mineralized TBA from 0.5mM to 50mM, which is significantly higher than previously reported cultures. The level at which TBA limited the cellular activity was 40mM; …
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The Reaction of Aqueous Free Chlorine With Organic Compounds Adsorbed on Granular Activated Carbon
… was examined before and after adsorption on an activated carbon bed. An extract of humic acid from peat soil was used as the organic compound in the first part of the study. The concentration of humic acid and chlorine were typical of those encountered in municipal water treatment plants. By …
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Ex situ biodegradation of explosives using photosynthetic bacteria and biological granular activated carbon systems
Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-01-23T14:50:37Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Millerick_Kayleigh.pdf: 3969612 bytes, checksum: a4634da2cbebe77fa318c92bf7da43b9 (MD5)
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Study mass transfer of Cd, Hg, As, DDT and chlordane through adsorption onto granular activated carbon
… have been chosen to be adsorbed onto three (3) granular activated carbon which are SIG (shell industrial grade), SAG (shell analytical grade) and BAG (bitumen analytical grade). The micropollutants (Hg, Cd, As, DDT and chlordane) were prepared using standard stock solution in deionized water. …
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Granular Activated Carbon Sorption as a Load Equalization Mechanism in Operation of Air Pollution Control Devices
… some of these challenges, a systematic study of granular activated carbon (GAC) sorption was conducted to further evaluate its potential as a load equalization mechanism for unsteady loading of volatile organic carbons (VOCs). GAC columns were experimentally tested under dynamic loading …
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Behaviour of trace organics and dissolved organic matter in granular activated carbon filters for drinking water supply
Granular and biological activated carbon (GAC and BAC) filters are widely used to remove organic compounds from drinking water sources during municipal drinking water treatment. Common uses of GAC filters include removal of taste and odour (T&O) causing compounds such as geosmin and …
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Combination of zero-valent iron and granular activated carbon for the treatment of groundwater contaminated with chlorinated solvents
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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Evaluation of granular activated carbon adsorption to remediate ethylene dibromide contamination at Fuel Spill 28 at the Massachusetts Military Reservation
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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Assessing the Potential of Granular Activated Carbon Filters to Limit Pathogen Growth in Drinking Water Plumbing Through Probiotic Versus Prebiotic Mechanisms
… this hypothesis by utilizing biologically active granular activated carbon (GAC) filters, which are already a widely used drinking water treatment both at the municipal and household scale, as a means to naturally shape the microbial ecology of downstream premise plumbing and inhibit Lp and NTM …
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Study of Chemical States, Composition and Adsorption Behavior of Iron Coated Granular Activated Carbon (Fe-GAC) for Selenate Removal and Feasible Adsorbent Modifications
… adsorptive removal of selenate using iron coated granular activated carbon (Fe-GAC) and further investigated its complexation mechanisms and coordination structures using spectroscopic techniques. Adsorption kinetics and equilibrium experiments with initial selenium concentration of 1 mg/L were …
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Evaluation of hybrid treatment configurations of granular activated carbon and alternative adsorbents for per- and polyfluoroalkyl substances removal from surface water and groundwater
… adsorption-based treatment technologies like granular activated carbon (GAC) and anion-exchange resins have been used extensively, but often see diminished performance with “challenging” waters that contain competitive adsorbates such as dissolved organic matter (DOM) and/ or total dissolved …
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A novel bioadsorption-flocculation fluidized bed bioreactor prior to membrane filtration for wastewater treatment and reuse
… relevant to all the above issues. Firstly, the granular activated carbon (GAC) fluidised bed bioreactor was designed and developed through a series of study on (i) bioadsorption capacity of granular activated carbon (GAC) in terms of dissolved organic carbon (DOC) removal from wastewaters, (ii) …
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Thermal regeneration of activated carbon for the treatment of drinking water
Granular activated carbon (GAC) has been specified as the best available technology (BAT) for the removal of synthetic organic compounds from drinking water. Drinking water utilities which use GAC must either replace or regenerate the carbon periodically. Thermal regeneration is one option for …
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The reduction of bromate in drinking water by activated carbon
… in drinking water has been studied. Both granular activated carbon and powdered activated carbon have been used to reduce bromate. Solution characteristics which influenced the reduction of bromate during this study include solution pH, initial bromate concentration, ionic strength of the …
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Sorption and desorption of the industrial chemical MCHM into polymer pipes, liners and activated carbon
… into polymer drinking water infrastructure and granular activated carbon (GAC). Experiments for sorption of non-polar toluene and polar 1-butanol were conducted as a comparison for MCHM sorption. Additionally, a brief odor analysis was done on the ability of activated carbon to remove odor from …
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