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Archives :: Environmental, Health & Safety :: Environmental Management

Displaying 421 - 440 of 441 stories.
April 1, 2006
Vortex Corp. (Prescott, Ariz.; edlinks.che.com/5828-538) has been awarded a Phase Two, $750,000 Homeland Security Advanced Research Project Agency Small Business Innovation Research contract to develop chlorine-free water-purification systems for municipal water-treatment plants. With support from the University of Arizona’s Water Quality Center (Tuscon), Vortex will develop a large-scale...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/A-new-twist-for-UVO3-disinfection-of-water_2926.html
March 1, 2006
Siemens Industrial Solutions and Services Group (Erlangen, Germany; edlinks.che.com/5827-551) has built, commissioned and deployed the largest mobile water filtration system in the industry. The Horizontal...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Chementator-Mobile-water-plant_2908.html
March 1, 2006
    Solvents have been used for centuries and in all type of industries for the processing, manufacturing and formulation of goods. In the chemical process industries (CPI), solvents are used in various process-operation steps such as separation (of gas, liquid and/or solid), reaction (as reaction medium, reactant, and carrier), degreasing, washing and many more. As part of product formulations...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/regulatory/A-Modern-Approach-to-Solvent-Selection_2775.html
March 1, 2006
    Fuel costs rose sharply in 2005 because of hurricane damage to U.S. interests in the Gulf of Mexico, and international developments in the oil supply market. Competing fuels — coal and natural gas — rose in price in lockstep. Natural gas has risen in cost, and has been reported to be as much as $17/MM Btu in December 2005 for industrial use in the northeastern U.S. As operating...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/sustainability/Consider-Alternate-Fuels-To-Cut-Costs_2797.html
March 1, 2006
Archer Daniels Midland Co. (Decatur, Ill.; edlinks.com/5827-542) plans to build the world’s first commercial plant to produce PHA (polyhydroxyalkanoates), which are high-performance plastics made from renewable resources, such as corn sugar. The plant, to be located at a major ADM site in North America, will have an initial capacity of 50,000 m.t./yr. The facility is a joint venture being established...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/sustainability/Chementator-A-bioprocess-to-make-natural-plastic-makes-its-commercial-debut_2916.html
March 1, 2006
Last August, the comments on this page saluted recent achievements of BASF Corp., Merck, Archer Daniels Midland and other winners of the U.S.’s 2005 Presidential Green Chemistry Challenge Program, administered by the Environmental Protection Agency (Green-chemistry feats bring in the gold, CE, August 2005, p. 7). In light of today’s high interest in, and the clear desirability of, such usage of...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/sustainability/Green-chemistry-theres-a-lot-still-left-to-do_3094.html
March 1, 2006
Last August, the comments on this page saluted recent achievements of BASF Corp., Merck, Archer Daniels Midland and other winners of the U.S.’s 2005 Presidential Green Chemistry Challenge Program, administered by the Environmental Protection Agency (Green-chemistry feats bring in the gold, CE, August 2005, p. 7). In light of today’s high interest in, and the clear desirability of, such usage of...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/sustainability/Green-chemistry-theres-a-lot-still-left-to-do_3105.html
March 1, 2006
    Depending on their location and on other factors, chemical-process-industries (CPI) plants obtain their process water from a diverse range of sources (see Process Water Supply — the Big Picture, Chem. Eng., May 2005, pp. 32–34.). The water from most, if not all, of these sources requires some, if not a great deal of, contaminant removal onsite in order to make the water suitable...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Process-Water-Treatment-Challenges-and-Solutions_2796.html
March 1, 2006
Next month, Mekorot, Israel National Water Company Ltd. (Tel Aviv, Israel) will start up what is claimed as the world’s first ion-exchange system for selectively removing boron from potable water. The plant, designed and constructed by Treitel Chemical Engineering Ltd. (Tel Aviv; edlinks.che.con/5827-532), will treat 6,500 m3/d of reverse-osmosis-product water at Mekorot’s brackish water...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Chementator-Removing-boron-from-drinking-water_2903.html
February 1, 2006
Large tracts of land that have been used for military training, especially in the U.S., are contaminated with RDX— a widely used explosive that is both toxic and carcinogenic. Although bacteria have been isolated that can biodegrade the RDX, the degredation rates are too slow, allowing the RDX to leatch...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Chementator-Converting-trees-into-biodegredation-plants_2901.html
February 1, 2006
    Groundwater, surface wa-ter, wastewater, drinking water: it’s all essentially the same stuff. Whichever stage of the water cycle you care to look at, chemical engineers are to be found — either trying to stop water from becoming polluted in the first place, or cleaning up afterwards.   Cleaning up outdoors Many water purification processes rely on naturally occurring...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Managing-Water-Pollution_3068.html
February 1, 2006
Last month, Rentech, Inc. (Denver, Co.; edlinks.che.com/5826-539) signed its first domestic license agreement with DKRW Advanced Fuels LLC (Houston, Tex.; edlinks.che.com/5826-540) for the use of Rentech’s patented F-T CTL technology (CE, May 2004, p. 23). At the same time, DKRW’s subsidiary, Medicine Bow Fuel & Power LLC...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Chementator-and-theres-a-new-CTL-licensee-and-patent-for-Rentech_2893.html
February 1, 2006
    While politicians and research institutes debate about a future hydrogen economy, plant contractors and industrial gas suppliers are working overtime to build bigger, more efficient hydrogen plants to meet the immediate demands. The fact is, there doesn’t seem to be enough H2 around to meet the growing demand for clean fuels and basic chemicals. This is the first time in the market...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Hydrogen-The-real-ACTION-is-Today_3069.html
January 1, 2006
BASF AG (Ludwigshafen, Germany; edlinks.che.com/5825-546) has developed a biodegradable plastic that contains 45% polylactic acid, a biodegradable polymer made from corn (CE, November 2003...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Chementator-Semi-renewable-plastic_2871.html
January 1, 2006
This month, the first field tests will be conducted on a pilot plant, developed by WOW Energy, Inc. (Sugar Land, Tex.; edlinks.che.com/5825-534), to remove mercury, oxides of sulfur (SOx) and nitrogen (NOx), particulates, heavy metals and volatile organic compounds (VOCs) from the fluegas (FG) of power plants and other industrial facilities. The 2,500-ft3/min pilot unit, constructed with a $1.6-million...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Chementator-This-end-of-pipe-process-treats-all-fluegas-pollutants-_2872.html
January 1, 2006
WOW Energy (see item above) has also developed a patented process that uses commercial, off-the shelf components to reduce the FG temperature to near ambient, while converting the extracted thermal energy into electricity. The cascading closed-loop cycle (CCLC) does this by using a hydrocarbon (propane) working...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Chementator-and-this-process-makes-power-from-waste-heat_2873.html
January 1, 2006
A simple tank-and-siphon system for removing oil from wastewater has been launched internationally by an engineering team from the University of New South Wales (UNSW; Sydney, Australia; edlinks.che.com/5825-541). Called the Extended Gravity Oil Water Separator (EGOWS), it is described as an improvement on the American Petroleum Institute (API) gravity separator, in that it reduces the oil content of the...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Improved-oil-water-separation_2882.html
January 1, 2006
Reader feedback tells us that maintaining process-plant safety is an area of perennial concern. That, doubtless, explains why Carolyn Merritt, chair and chief executive officer of the U.S. Chemical Safety and Hazard Investigation Board (CSB; Washington, D.C.), drew a large audience during her keynote address at the Chem Show in New York two months ago. For attendees of that Show who heard her, or who read...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/A-deplorable-tendency-for-accident-related-risks_3091.html
January 1, 2006
Lurgi AG (Frankfurt, Germany; edlinks.che.com/5825-549) is building the world’s largest biodiesel plant for Neckermann-Renewables GmbH (Würzburg, Germany). When the E64-million facility starts up in December at Piesteritz, Germany, it will produce more than...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Chementator-Biodiesel_2876.html
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