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Showing 1 to 20 of 28 for “"Activated carbon (AC)"”.
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Carbon Dioxide Capture: Using Activated Carbon From Chicken Waste
Carbon Dioxide (CO2) emission from hydrocarbon fuel combustion is becoming a serious concern because it is the main contributor to greenhouse gas which causes global warming. Activated carbon sorbents have been used widely in various gas-phase and/or liquid-phase separation. Currently activated …
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Ionic Liquids Tethered to Activated Carbon for Capture of Airborne Toxins
… (ILs) were investigated for functionalization of activated carbon (AC) adsorbents for the filtration of warfare toxins. Preliminary steps were taken by testing absorption capacity of neat ILs and tethering ionic liquids to the surface of AC. AC is known to have good adsorption ability for warfare …
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Impacts of Vanadium and Coke Deposition on CO2 Gasification of Nickel Catalysts Supported on Activated Carbon from Petroleum Coke
One of the ways to dispose of spent carbon-based catalysts is gasification. In this study, the kinetics of CO2 gasification of Ni/activated carbon (AC) catalysts, produced from petroleum coke, were investigated at 700-900 °C using a thermogravimetric analyzer (TGA). The catalysts were coked by …
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Novel Carbon-supported Transition Metal Phosphide Catalysts for Hydrodeoxygenation of Fast Pyrolysis Oil
… of pyrolysis oil into advanced drop-in hydrocarbon liquid fuels by HDO. The first stage of this thesis project investigates a series of molybdenum oxides/phosphide catalysts on different supports that were prepared in-house, such as Al2O3, activated carbon (AC), MgAl2O4 and Mg6Al2(CO3)(OH)16. …
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Conversion of landfill composite to activated carbon as an approach to sustainable landfill management
… evaluated the compositional trend and characteristics of landfill composites with depth in order to assess its suitability as a precursor for activated carbon. A bulk system classification was used during analysis of the composite parameters (‘more degraded’ and ‘less degraded’ components). …
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Effects of feeding a fumonsin (FB[subscript 2]) naturally contaminated corn at various levels, with and without 2 adsorbents on the growth performance, blood, and liver chemistry of nursery pigs
… were randomly allotted to dietary treatments in each experiment. (6 replications) containing different concentrations of FB1. Exp. 1 treatments were a Phase 2 nursery diet supplemented with 1) 0 ppm FB1 (control), 2) 20 ppm FB1, 3) 30 ppm FB1, 4) 40 ppm FB1, and 5) 50 ppm FB1. In conclusion, …
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Removal of Metformin and Clarithromycin from aqueous media using Magnetic Brewery Spent Grain
… The presence of contaminants such as human pharmaceuticals in natural and potable waters has highlighted the need for new modes of treatment. While adsorption has proven to be effective in many applications, conventional adsorbents such as activated carbon (AC) can be expensive to produce. …
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The removal of chlorophenoxy herbicides from drinking water by activated carbon adsorption and liquid core microcapsule perstraction
… rates do not occur despite the existence of activated carbon (AC) treatment regimes in most plants. The present work examines the removal of three chlorophenoxy herbicides (MCPA, 2,4-D and dichlorprop) from aqueous solutions by AC adsorption and a novel liquid-core microcapsule perstraction …
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Removal of acid-extractable organics from oil sands process-affected water using carbon-based adsorbents
In surface mining process, 1.9 volumes of freshwater are used for each volume of bitumen produced and the used water, called oil sands process-affected water (OSPW), is stored in tailings ponds. Acid-extractable organics (AEO), one of the components of OSPW, are believed to be the main component of …
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Hydrogen Cryosorption of Micro-Structured Carbon Materials
… experimental tests was also performed. Common carbon sorbents, including several Norit branded activated carbons and graphene nanoplatelets (GNPs) with various surface areas, were characterised for their pore structures. The structural differences among GPNs of different surface areas were also …
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Application of palm shell activated carbon filter as a medium of indoor air contaminant adsorbent for indoor air quality improvement
For decades, the inclusion of activated carbon (AC) adsorption technique through filtration has gained significant interest on improvement of indoor air quality (IAQ) by reducing level of pollutant. The interest of reseachers in palm shell AC (PSAC) keep increase owing to the fact that this …
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Polychlorinated biphenyl dechlorination with palladized magnesium - Development of a sediment remediation technology
… enclosed conditions was evaluated by mixing activated carbon (AC) into Cocheco River, NH sediment. The higher organic and silt/clay content NBH sediment had lower overall dechlorination than the sandy HSR sediment with lower organic content; PCB desorption from the sediments did not limit …
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Activated Carbon Injection for Mercury Control in Coal-Fired Boilers
… it will remain an environmental concern.</p> <p>Activated carbon (AC) injection is a proposed technology for mercury control in coal-fired boilers. We are interested in determining whether the diffusion rate or the absorptive capacity of the sorbent particle limits mercury absorption. A …
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INCREASING EFFICIENCY AND SUSTAINABILITY OF WASTE-TO-ENERGY SYSTEMS USING BIOCHAR FOR HYDROGEN SULFIDE CONTROL AND LIFE CYCLE ASSESSMENT
… efficiency and reduce the environmental impacts of waste-to-energy technologies, specifically anaerobic digestion (AD) of dairy manure (DM) and combustion of poultry litter (PL). The first objective was co-digestion of DM with gummy vitamin waste (GVW) to increase methane (CH4) yield. The …
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Studies concerning the fate of atrazine and chlorpyrifos in a biobased pesticide waste disposal system
… solid state fermentation (SSF) in contained bioreactors. Emulsions formed from typical pesticide formulations acts as a barrier for pesticide sorption. Adding Ca(OH)₂ for demulsification ofDursban® 4E and filtering suspended particulates was the most effective steps for decreasing chlorpyrifos …
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Flash calcination of limestone in a bench-scale sorbent activation process (SAP) unit
… including sulfur oxides (SOx), hydrochloric acid (HCl) and elemental and ionic mercury (Hgo and Hg2+). A process option to remove these pollutants from the flue gas is by injection of sorbents downstream of a boiler and up-stream of a particulate control device. Activated carbon (AC) is a …
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Microcapillary membranes for purification of biomolecules
… separation media which possess high binding capacity and throughput, avoid column packing, are economically feasible for single-use disposability and work with standard chromatography systems. Two types of microcapillary membranes, hollow fibre membranes (HFM) and microporous walled …
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Application of scalable and inexpensive modification on carbon in clean technologies
Carbon can be a game-changing material to meet the global challenges in freshwater production and renewable conversion and storage devices due to their versatile nature. However, its hydrophobic characteristics, poor stability, low electrical conductivity, and small number of active sites limit its …
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CARBON STRUCTURES AND Mg-BASED MATERIALS FOR GAS SORPTION
… on fossil fuels. The other promising approach in reducing greenhouse gas emissions is carbon capture. Mgbased materials have been considered as a promising hydrogen storage system due to their high hydrogen capacity (up to 7.6 wt.%), high abundance, low cost and lightweight. Different …
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Influence of surface chemistry of carbon materials on inorganic nitrogen contaminants chemisorption
… +), nitrate (NO3-), and nitrite (NO2-), using carbon materials (CMs) such as activated carbon (AC), and biochar (BC) has been widely implemented. This study was based on the hypothesis that surface chemical properties of CMs significantly influence INC adsorption. A range of physicochemical …
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