Activated Carbon Treatment Articles
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Progressive Pulp Processes - Case Study
The pulp and paper industry is one of the largest industrial consumers of water resources within the U.S. and global economies. In the U.S., pulp and paper industry operations require, on average. 14.000 to 16.000 gal of water per metric ton of finished paper product. According to the Food and Agriculture Organization of the United Nations Secretariat, paper mill operations globally use up to ...
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Neon Gas and Where it is Used - PureAire Oxygen Deficiency Monitors for Safety and Why a Monitor May be Required?
Neon gas has a range of uses in industry, including in the popular business signs advertising stores as open. Explore some of the less well-known ways to use neon and learn how use of the gas may require installation of an oxygen deficiency monitor to protect worker safety. Uses for Neon Gas Neon gas can be filtered from helium using activated charcoal in a low temperature environment, or ...
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Physicochemical effect of activation temperature on the sorption properties of pine shell activated carbon
Activated carbons produced from a variety of raw materials are normally selective towards a narrow range of pollutants present in wastewater. This study focuses on shifting the selectivity of activated carbon from inorganic to organic pollutants using activation temperature as a variable. The material produced from carbonization of pine shells substrate was activated at 250°C and 850°C. Both ...
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Case study - Bespoke Solutions
PROJECT 700kg/h animal remains incineration project in accordance with EU WID (Waste Incineration Directive 200/76/EU) Chrzanów , Poland PROJECT DESCRIPTION The purpose of the plant was a combined waste disposal / energy recovery. In-stalled at a large meat processing plant the plant was designed to process approxi-mately 700kg/h per of crushed animal remains and recover energy in the ...
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Overheating Damage at Activated Carbon Filter
At one of the DMT’s plants recently a safety incident occurred. An Activated Carbon Filter overheated due to an incorrect mode of operation, causing damage to the installation. This led to a significant financial loss including business interruption impacts. To raise awareness for correct operation of Activated Carbon Filters, DMT publishes this S.H.E. bulletin to prevent this from ...
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Removal of mixture of ZnO and CuO nanoparticles (NPs) from water using activated carbon in batch kinetic studies
The aim of this study was to understand the effects of pH (5, 6, 7, 8, 9) and activated carbon (AC) concentration (0.01, 0.1, 1, 10, 100 g/L) on the removal of a colloidal solution of nanoparticles (NPs) (ZnO + CuO) using AC in batch kinetic studies. Results revealed that adsorption capacities of AC for Zn and Cu (individually) were 0.9 ± 0.028 mg/g (91.3% removal) and 0.95 ± 0.036 mg/g ...
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Adsorption properties of cationic rhodamine B dye onto metals chloride-activated castor bean residue carbons
This work was aimed to evaluate the feasibility of castor bean residue based activated carbons prepared through metals chloride activation. The activated carbons were characterized for textural properties and surface chemistry, and the adsorption data of rhodamine B were established to investigate the removal performance. Zinc chloride-activated carbon with specific surface area of 395 m2/g ...
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Another MRO company goes wastewater-free!
Jet Aviation in Basel, Switzerland, is using a VACUDEST vacuum distillation system to efficiently and sustainably treat wastewater left over from refurbishing aircraft parts. This state-of-the-art system replaced outdated chemical/physical treatment at the company. Jet Aviation is particularly pleased with the high quality of the treated water, which can even be reused in maintenance processes. ...
By H2O GmbH
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Modeling and optimization of nonylphenol removal from contaminated water media using a magnetic recoverable composite by artificial neural networks
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 relative ...
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Treatment of tannery wastewater for reuse by physico-chemical processes and a membrane bioreactor
Treatment of wastewater from a tannery in Greater Ho Chi Minh City (Vietnam) was investigated on a pilot scale. After pre-treatment by the tannery that included batch-coagulation and sedimentation, the wastewater was treated by dissolved air flotation, a membrane bioreactor (MBR) and granular activated carbon (GAC) for polishing the MBR effluent. The average removal efficiency for organic ...
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Sequestration of hexavalent chromium from aqueous solutions by activated carbon derived from Macadamia nutshells
The purpose of this study was to investigate the feasibility of activated carbons prepared from Macadamia nutshells as an efficient adsorbent for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions. The activated carbon was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), CHNS analyzer and Brunauer–Emmett–Teller (BET). For ...
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Luminant Oak Grove Power Station - Case Study
Powering Texas Luminant, a subsidiary of Energy Future Holdings Corp. (EFH) -which owns competitive and regulated energy subsidiaries in Texas -is the largest electricity generator in Texas. Unit two of the Oak Grove Power plant near Franklin in Robertson County, TX went online in the middle of 2010. Fluor, the project’s EPC company, completed the plant in 35 months and used advanced ...
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Promoted ozonation for the decomposition of 1,4-dioxane by activated carbon
Worldwide attention has been attracted to 1,4-dioxane because of its probable human carcinogenicity and frequent occurrence in surface waters and wastewaters. Thus, many countries and organizations have set limits for the amount of this material in drinking water and wastewater effluent. However, the removal of 1,4-dioxane during traditional treatment processes, even ozonation (pH < 7), ...
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Optimization of UV/H2O2 processes for the removal of organic micropollutants from drinking water: effect of reactor geometry and water pretreatment on EEO values
Increasing concentrations of organic micropollutants, like pharmaceuticals, in surface water may require additional treatment for drinking water production. The UV/H2O2 process is very effective for this purpose, but is known for its relatively high energy demand. This energy demand may be decreased by improving the water matrix composition and/or by optimizing UV reactor geometry. Thus, ...
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Adsorption performance of coconut shell activated carbon for the removal of chlorate from chlor-alkali brine stream
Activated carbon from coconut shell was used to investigate the adsorption of chlorate from a chlor-alkali plant's brine stream. The effect of pH, flowrate, chlorate and chloride concentration on the breakthrough curves were studied in small-scale column trials. The results obtained show enhanced adsorption at low flowrates, higher chlorate concentrations, and at a pH of 10. These studies ...
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Single and competitive adsorption of Cd(II) and Pb(II) from aqueous solution by activated carbon prepared with Salix matsudana Kiodz
In this study, Salix matsudana activated carbon (SAC) was prepared by phosphoric acid activation, and the adsorption characteristics of Cd(II) and Pb(II) on SAC in single- and double-component solutions were investigated. In both systems, the adsorption capacities of both ions on SAC increased with the increasing initial pH value and temperature in the solutions, and the adsorption ...
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How to Get Higher Acceptable Indoor Air Quality Anywhere
The quality of the indoor air we breathe is a concern for everyone, especially those in urban environments where contaminant and particle levels are higher due to nearly constant exposure to things like automobile and truck exhausts, construction, and fumigation. Unfortunately for most people, when it comes to the quality of the air in the buildings where they spend most of their time, they are ...
By Camfil Ltd
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Treatment Solutions - Carbon Removal Case Study
Global Treatment Solutions was contracted by Republic Services to serve as carbon removal and replacement specialists. Republic uses vapor phase granular activated carbon in 55 gallon drums at a municipal solid waste landfill to treat the off gas from a vacuum truck discharge to remove foul odor. A vacuum skid, built and operated by Global, is used to remove upwards of 10,000 pounds of spent ...
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Preparation, characterization, and application of activated carbon from low-cost material for the adsorption of tetracycline antibiotic from aqueous solutions
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, ...
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Ceresco Dam Case Study
Global was contracted by Terra Contracting Services, LLC to serve as Water Treatment Specialists in response to the 2010 Enbridge Oil Spill along the Kalamazoo River. An energy pipeline rupture caused 877,000 gallons of heavy crude oil to spill into Talmadge Creek in Calhoun County, Michigan, which flows into the Kalamazoo River. Global engineered a processing plant for material and slurry ...
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