27 Articles found
Calgon Carbon Corporation Articles
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Removal of Nickel from Cobalt Sulphate Electrolyte Using ISEP® Continuous Ion Exchange
Untitled Document Anglovaal Mining Limited (Avmin) is increasing production at the Chambishi Metals Cobalt Plant in Zambia through its COSAC Project. The increase in cobalt and copper production will increase the nickel input to ...
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Integrated Odor Control for Solids Handling Operations
Untitled Document Solids handling operations and solids holding facilities are often major sources of odor at wastewater treatment plants. Hydrogen sulfide and other odorous compounds generated during primary settling and ...
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Oregon Municipality Eliminates Complaints of Odors and Hazards of Caustic Regeneration Solutions in One Move
Untitled Document The author shares his experiences of his organization's search for a suitable odor control system for a municipal wastewater treatment plant. He provides a comparison of available technologies and explains ...
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Application of a Medium Pressure UV System for the Treatment of N-Nitrosodimethylamine (NDMA)
Untitled Document N-nitrosodimethylamine (NDMA) was first detected in 1990 as a problem pollutant in drinking water wells at levels as high as 3,000 ppt in Elmira, Ontario, Canada. The waste from a large chemical ...
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Comparison of MS-2 Biodosimetry Challenge Results with Computational Fluid Dynamics Modeling for a UV Disinfection Reactor
Untitled Document This project evaluated a medium pressure ultra-violet (UV) reactor downstream from a conventional surface water treatment plant to determine the UV dose delivered by the reactor. The data was ...
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Scale-up of a Medium Pressure UV System for the Treatment of N-Nitrosodimethylamine (NDMA) and its Advantages Over Low Pressure UV Systems
Untitled Document Recently there has been considerable concern in California about the detection of N-nitrosodimethylamine (NDMA) in drinking water at levels as high as 900 ppt. NDMA was found to be a ...
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Activated Carbon: What it is, how it works
Untitled Document Summary: In the last decade public awareness and concern over the quality of drinking water has resulted in more and more consumers turning to point-of-use devices for treating water to their own desired level ...
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Options in Odor Control - New Alternatives and Traditional Technologies
Untitled Document Summary: The control of odorous emissions from sewage treatment facilities has long been a major issue, especially for facilities located close to residential areas. As populations grow and expand near the ...
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Reducing Product Manufacturing Costs Through the Use of a Simple and Flexible Moving Bed Process
Untitled Document Traditionally, the chemical engineer can rely on chemical separation methods such as distillation, crystallization, extraction, and adsorption. This paper presents a process technology for continuous separations ...
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Contaminated Groundwater Cleaned by Granular Carbon System
Untitled Document Summary: A granular activated carbon system developed by Calgon Corp., is being used to remove various toxic materials from contaminated groundwater at the U.S. Army's huge Rocky Mountain Arsenal near ...
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Chromatography in Sugar Processing
Untitled Document Chromatography is a new process to most sugar technologists, yet it is fast becoming a tool of significance for recovering sucrose and other value by-products. The CSEPĀ® chromatographic separator, one ...
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A Smelly Situation: Snuffing Out H2S in Water and Air
Untitled Document Summary: Dealing effectively with hydrogen sulfide (H2S) in groundwater presented a major challenge for coastal Indian River County, Fla. Stripping the odorous substance from the water was only half the ...
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Manufacturer Recycles Solvents, Cuts Air Emissions
Untitled Document To achieve an acceptable level of solvent emissions, Sellotape Products Ltd. of New Zealand installed a carbon adsorption system. This paper describe's the factory's system. To view the ...
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UV Experience for Inactivating Cryptosporidium in Surface Water Plants
Untitled Document The disinfection of pathogenic microbes in drinking water has been largely successful over the last century due to the use of chlorination. However, research conducted in the 1970's revealed ...
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Inactivation of Cryptosporidium parvum by Medium-Pressure Ultraviolet Light in Finished Drinking Water
Untitled Document The inactivation of Cryptosporidium parvum in finished drinking water by medium-pressure UV light (200-300 nm) has been investigated at both the bench scale, using a collimated beam apparatus, ...
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Plant Adds Customized Distillation System
Untitled Document This article describes how the installation of a customized distillation system helped R.J.R. Packaging purify recovered alcohol for reuse and minimize the amount of alcohol in the effluent water for ...
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Catalytic/Adsorptive Carbon Testing for Odor Control at Indian River County, Florida
Untitled Document Most of Central Florida withdraws water from the Floridian Aquifer by means of deep wells. The water that comes from both the inland fresh water wells and the coastal saline wells is typically high in ...
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Effects of Starting Material on Activated Carbon Characteristics and Performance
Untitled Document The objective of this article is to demonstrate how the choice of starting material determines potential carbon product properties. Activation can only "develop" an activated carbon skeleton, using ...
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Emphasis Shifting to Toxicity Reduction
Untitled Document Under the Clean Water Act (CWA), the U.S. Environmental Protection Agency (EPA) established the National Pollutant Discharge Elimination System (NPDES) permitting program as a means of controlling the ...
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Activated Carbon to the Rescue
Untitled Document Summary: Images of the aftermath of an emergency spill are all too familiar. The longer it takes to begin cleanup, the greater the injury to the environment, wildlife and the reputation of the ...