activated carbon impregnated Articles

Herein, activated carbon impregnated iron oxide nanoparticles (Fe3O4/AC) were synthesized to determine their potentials for the adsorption of nonylphenol (NP) in aqueous solution with different experimental variables, namely the pH of the solution, contact time, adsorbent dosage and the initial NP concentration. Additionally, an artificial neural network system was used to find the ...

Nov. 15, 2016

By IWA Publishing

The main objectives of this study were to evaluate the effectiveness of using iron impregnated granular activated carbon (AC) to remove arsenic from water and to assess the partitioning behavior of arsenic under a variety of conditions. Iron impregnated granular activated carbon (AC-Fe) composites were prepared with different ferric (Fe+3) concentrations, ranging from 0.09 to 3.0 M. These ...

Apr. 30, 2015

By IWA Publishing

The objectives of this study are to optimize the synthesis conditions of metals such as aluminum (Al), iron (Fe) and cerium (Ce) impregnated activated carbon composites (AC-M) for fluoride removal and to evaluate the sorption behavior of fluoride by the composite under varying solution chemistry. To achieve the objectives, several composites were prepared with different combinations of Al, Ce ...

Mar. 22, 2017

By IWA Publishing

Thiol groups of adsorbent surfaces offer strong affinities for heavy metal ions, such as Hg(II), Pb(II), Cd(II), and so on. In this study, thiol group was impregnated to activated carbon by a series of treatments of oxidation and chlorination followed by 1,2-ethanedithiol introduction in order to investigate the adsorption properties of Cd(II) in aqueous solution. Batch sorption experiments were ...

Mar. 1, 2011

By IWA Publishing

Untitled Document Summary: Mercury induced corrosion in LNG plants using mixed refrigerant (Fig.1) can be severe on the cycle gas side of exchangers, primarily during warmup ...

Nov. 1, 1980

By Calgon Carbon Corporation

High Energy low volume pulses of a water based suspension of a unique treatment material (BOS 100) consisting of granular activated carbon that has been impregnated with metallic iron were employed to remediate DNAPL at a large urban industrial facility. Initially, injections were completed using conventional hydraulic fracturing and large portions of the dissolved phase plume responded to this ...

Jul. 31, 2012

By Remediation Products Incorporated (RPI)

Several studies have focused on the application of layered double hydroxide or nanoparticle based adsorbent for removing fluoride. The objectives of this study are to impregnate aluminum (Al) and cerium (Ce) within the pore spaces of activated carbon (AC) for removal of fluoride from water and to evaluate the partitioning behavior of fluoride by the double-metal-AC composite. To achieve the ...

Jul. 11, 2016

By IWA Publishing

In this study, a new zinc chloride (ZnCl2) impregnated activated carbon (Zn-AC) was prepared from oak charcoals as low-cost material and used as adsorbent for tetracycline (TC) adsorption. The Zn-AC was characterized using field emission-scanning electron microscope, powder X-ray diffraction, and CHNS-O analyses. Specific surface area of the adsorbent was also measured using the Brunauer, ...

Sep. 3, 2016

By IWA Publishing

Palm-date pits were used to prepare activated carbon by physiochemical activation method, which consisted of potassium hydroxide (KOH) treatment and carbon dioxide (CO2) gasification. The effects of variable parameters, activation temperature, activation time and chemical impregnation ratios (KOH: char by weight) on the preparation of activated carbon and for removal of pesticides: bentazon, ...

Oct. 18, 2013

By IWA Publishing

Activated carbon (AC) is widely used as an effective adsorbent in many applications, including industrial-scale air purification systems and air filter systems in gas masks. In general, ACs without chemical impregnation are good adsorbents of organic vapors but poor adsorbents of lowmolecular-weight or polar gases such as chlorine, sulfur dioxide (SO2), formaldehyde, and ammonia (NH3). ...

Mar. 3, 2009

By Air & Waste Management Association (A&WMA)

Nitrate is a wide spread contaminant in both ground and surface water due to excessive use of nitrogenous fertilizers in agricultural activities and disposal of untreated sanitary and industrial wastes (Hudak,2000 ; Almasri and Kaluarachchi,2004). Elevated nitrate concentrations in drinking water are linked to health problems such as  ethemoglobinemia in infants and stomach cancer in adults. ...

Mar. 3, 2008

By University of Tehran

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Jun. 20, 2016

By Bioconservacion SA

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Jan. 25, 2017

By Bioconservacion SA

Application Greenstar Ltd. who operate the large waste transfer station at Ballyogan needed to ensure working conditions inside the building were acceptable to the workforce and that the surrounding area did not suffer from odourous emissions. An early part of the design process called for an efficient extraction system to draw air from the Reception Hall and the Baling Hall to meet these ...

Sep. 21, 2010

By ERG (Air Pollution Control) Ltd

Hydrogen sulfide (H2S) is a poisonous, highly flammable, colorless gas that is associated with a ‘rotten egg’ odor. As stated by cchealth.org, “hydrogen sulfide is created naturally by decaying organic matter and is released from sewage sludge, liquid manure, and sulfur hot springs.” It also is a by-product from industrial processes such as natural gas processing, ...

Jul. 1, 2013

By General Carbon Corporation