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

Displaying 381 - 400 of 440 stories.
December 1, 2006
    For companies in the chemical process industries, water is an indispensable utility. But the growing scarcity of quality industrial water, combined with stricter environmental regulations and the rising cost of wastewater treatment, have encouraged the conservation of water as a key utility in process plants. Concurrently, the development of systematic techniques for water reduction has made...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/Assess-Your-Plants-True-Water-Savings-Potential_2810.html
December 1, 2006
For the first time, polyols derived only from castor oil can be used to produce tough coatings, flexible adhesives, soft sealants and elastomers. The Polycin GR Series is the latest polyol line from Vertellus Performance...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/A-renewable-precursor-for-the-polyurethane-industry_3054.html
December 1, 2006
The mountains of used tires piling up around the world may be a source of a new filtration media that promises to be a cheaper and more efficient alternative to sand or anthracite, which are commonly used for filtering wastewater. The patented technology, developed by Yuefeng Xie, associate professor of environmental engineering at Penn State Harrisburg (Pa.; edlinks.che.com/6519-555), uses crumb rubber...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Tires-filter-wastewater_3064.html
November 1, 2006
Last month, the American Chemical Society (ACS) celebrated its 19th annual National Chemistry Week, a community-based program that aims to communicate how chemistry benefits quality of life. The initiative goes hand-in-hand with the American Chemistry Council’s (ACC’s) “essential2” advertising campaign, launched a little more than a year ago to inform law and policy makers about how...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/Engineering-image_3103.html
November 1, 2006
Last month, the American Chemical Society (ACS) celebrated its 19th annual National Chemistry Week, a community-based program that aims to communicate how chemistry benefits quality of life. The initiative goes hand-in-hand with the American Chemistry Council’s (ACC’s) “essential₂” advertising campaign, launched a little more than a year ago to inform law and policy makers about...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/Engineering-image_3108.html
November 1, 2006
  Large reductions in the emission of pollutants have been reported in the operation of a novel type of municipal solid-waste treatment plant. A group from the Hong Kong University of Science and Technology’s Dept. of Chemical Engineering (edlinks.che.com/6518-535) has reported test results recently conducted on a municipal-solid-waste (MSW), co-combustion pilot plant — a novel design...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Making-cement-while-destroying-solid-wastes-reduces-pollution_3031.html
November 1, 2006
Last month, Thai Oleochemicals Company Ltd. (TOL; Bangkok, Thailand) and Thai Fatty Alcohols Company Ltd. signed a contract with Uhde GmbH (Dortmund, Germany; edlinks.che.com/6518-531) for the construction of an integrated plant for making 200,000 m.t./yr of methyl ester, 100,000 m.t./yr fatty alcohols and 30,000 m.t./yr of glycerine from palm oil. The methyl ester plant is slated to start up next October...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Uhde-to-build-the-worlds-first-integrated-facility-to-make-biodiesel-and-fattyalcohols_3028.html
November 1, 2006
  A promising method for producing hydrogen involves the gasification of biomass with steam. To enhance the concentration of H₂ in the ensuing mixture of combustible gases, a carbon dioxide sorbent can be used in situ; calcium oxide is commonly used. A research team from the Laboratory for Sustainable Technology, at the University of Sydney’s School of Chemical and Biomolecular Engineering...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/How-to-boost-H2-output-from-biomass-gasifiers_3034.html
November 1, 2006
Over the last three years, DuPont (Wilmington, Del.; edlinks.che.com/6518-552) has been developing technology to break down the complex sugar matrix of corn stover as a means for making ethanol from cellulose in high yield. Although there is more research to be completed, the company is ready to take the next step to bring cellulosic ethanol to market...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Bioethanol_3043.html
November 1, 2006
    More and more, it is recognized that business and science are interwoven, and that these disciplines can complement each other to achieve corporate goals. In the chemical process industries (CPI), a noteworthy role is that of engineering in helping management comply with regulatory policy. A common procedure for most process engineers is performing a mass balance around a given system. Once...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/regulatory/The-Mass-Balance_2825.html
November 1, 2006
Ostara Nutrient Recovery Technologies Inc. (Vancouver, B.C., Canada; edlinks.che.com/6518-533) has constructed the first large-scale reactor to demonstrate the struvite recovery technology first developed by the University of British Columbia (UBC). The e700,000 reactor, located at the Edmonton Gold Bar sewage treatment works, will treat approximately...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Recovering-struvite-from-sewage-sludge_3029.html
October 1, 2006
      Biomass has come center stage in the pursuit of reduced dependence on finite - not to mention geopolitically sensitive - quantities of fossil fuels such as petroleum, coal and natural gas. And while ethanol produced from corn is one promising path for biomass, it is by no means the only one. The number of known viable raw materials is vast, and the assortment of feasible downstream...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/Broader-Horizons-for-Biomass_2787.html
October 1, 2006
Most of today's solar cells are made from silicon wafers cut from blocks of crystals. The wafers are typically 0.2-0.25-mm thick, yet most of the photon-to-electricity conversion takes place in the outermost 0.02 mm of the wafer. In an effort to reduce the amount of Si required (and thus the cost) for solar cells, BP Solar (Frederick, Md; edlinks.che.com/6517-538) is supporting a three-year research...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/Efforts-to-reduce-the-cost-of-Si-based-solar-cells_3016.html
October 1, 2006
Richard Milner, a Honary Fellow at CSIRO Entomology (Canberra, Australia; edlinks.che.com/6517-541), has developed a rare native fungus, Metarhizium, into an environmentally friendly control for grass-hopper-type (including locust) agricultural pests. Metarhizium is a naturally occurring soil fungus that is...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/A-natural-pesticide-combats-locust-plague-_3017.html
October 1, 2006
Stefan Jaronoski, an insect pathologist at the U.S. Dept. of Agriculture's ARS Northern Plains Agricultural Research Laboratory (Sidney, Mont....
http://www.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/Fungus-discovered-to-kill-sugar-beet-root-maggots_3018.html
October 1, 2006
    Water is an essential resource for the chemical process industries (CPI), with steam, cooling water and process water as just a few examples of its many applications. When readily available, this essential commodity is often taken for granted. There is, however, a risk of losing the availability of classic water resources such as groundwater, river water or potable water for an industrial...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Wastewater-A-Reliable-Water-Resource_2792.html
October 1, 2006
Last month, BOC Edwards (Wilmington, Mass.; edlinks.che.com/6517-549) completed installations of its new ERIX wastewaster treatment system at the College of Nanoscale Science and Engineering, of the University of...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/HF-effluent-treatment_3022.html
October 1, 2006
Scientists from the University of Illinois at Urbana-Champaign (edlinks.che.com/6517-551) have developed a catalyst that uses hydrogen to efficiently destroy harmful perchlorate in contaminated groundwater. The catalyst is composed of palladium and rhenium supported on activated carbon. The rhenium removes an oxygen atom from the perchlorate...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Perchlorate_3024.html
September 1, 2006
Researchers from the Physics of Fluids and Biocolloids group at the University of Granada (Spain; edlinks.che.com/6516-549) are developing a system in which...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/Cold-asphalting_3008.html
September 1, 2006
Messer Group GmbH (Krefeld, Germany; edlinks.che.com/6516-531) has commercialized a liquid-nitrogen- (LN₂) based process for purifying exhaust air that contains high (100–1,000 g/m3) loads of chlorofluorocarbons (CFCs) or solvents. Unlike incineration (which can have problems, such as dioxin formation, with chlorinated compounds) or absorption methods (which require subsequent handling or disposal...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/A-cool-way-to-recycle-solvents-from-exhaust-air-streams_2993.html
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