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

Displaying 401 - 420 of 444 stories.
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.chemengonline.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.chemengonline.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.chemengonline.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- (LNâ‚‚) 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.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/A-cool-way-to-recycle-solvents-from-exhaust-air-streams_2993.html
September 1, 2006
Ecovation, Inc. (Victor, N.Y.; edlinks.che.com/6516-539) has constructed a waste-treatment and renewable-energy-production facility for CoolBrands International (North Lawrence, N.Y.) — a cottage-cheese and yogurt production plant that will use Ecovation’s patented Mobilized Film Technology (MFT) to biologically treat wastewater containing...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Reduce-energy-needs-by-converting-wastewater-into-biogas_3000.html
September 1, 2006
The U.S. DOE estimates that uranium contaminates more than 2,500 billion liters of groundwater nation wide; for the past 10 years, the agency has supported research into the ability of naturally-occuring microbes that can stop the underground migration...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Bacteria-may-be-a-solution-to-stop-uranium-migration-in-groundwater_3001.html
September 1, 2006
    The world’s increasing demand for water brings with it technological challenges as well as opportunities for the chemical process industries (CPI). Recent forecasts show that the need and opportunities for water treatment are on the rise and will continue to grow in the foreseeable future.   Globally, the market for water and wastewater equipment and services including chemicals...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/World-Water-Needs-Grow_3083.html
August 1, 2006
Researchers at Pacific Northwest National Laboratory (PNNL; edlinks.che.com/6515-533) have demonstrated a new process for treating water contaminated by toxic perchlorate ions, found in drinking water in 35 U.S. states. As in conventional treatment methods, the process uses ion exchange to separate the ion from water. However, instead of...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Electrically-controlled-ion-exchange-offers-a-greener-way-to-treat-wastewater_2977.html
August 1, 2006
Among this year's award winners of the U.S. Environmental Protection Agency's (EPA; Washington, D.C.) Presidential Green Chemistry Challenge are Codexis, Inc. (Redwood City, Calif.; edlinks.che.com/6515-538), Merck & Co. (Whitehouse, N.J.; edlinks.che.com/6515-539) and Galen Suppes, professor of chemical engineering at the University of Missouri at Columbia...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Honors-for-greener-reaction-conditions-_2980.html
August 1, 2006
As it has for several years, the U.S. Environmental Protection Agency (EPA) once again paid tribute early this summer to companies, as well as to an individual, for contributions to pollution prevention, via its Presidential Green Chemistry Challenge Awards competition. It is no surprise that once again, chemical process companies are well represented among the winners. The details of the achievements of...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Gold-medal-ways-of-going-for-the-green_3100.html
August 1, 2006
As it has for several years, the U.S. Environmental Protection Agency (EPA) once again paid tribute early this summer to companies, as well as to an individual, for contributions to pollution prevention, via its Presidential Green Chemistry Challenge Awards competition. It is no surprise that once again, chemical process companies are well represented among the winners. The details of the achievements of...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Gold-medal-ways-of-going-for-the-green_3106.html
August 1, 2006
    China, one of the world's great growth stories, may become the world's largest consumer market. As that potential unfolds, petrochemical activity and investment are sure to be key drivers. China is now the 6th largest economy in the world, boasting a Gross Domestic Product (GDP) of $2.23 trillion in 2005; but measured on a purchasing power parity (PPP) basis, China would rank as the...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/regulatory/China-Still-Beckons-Petrochemical-Investments_3080.html
August 1, 2006
Dow Chemical Co. (Midland, Mich.; edlinks.che.com/6515-546) has acquired Zhejiang Omex Environmental...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Water-purification_2986.html
July 1, 2006
Soil contaminated with chlorinated aliphatic compounds can be remediated ten times faster than with biological or iron-based methods by use of a new metallic powder developed by Tosoh Corp. (Tokyo; edlinks.che.com/6514-532). The powder, called MA-FN20, electrochemically strips the chlorine atoms from the pollutants, producing soluble chloride ions and volatile organic compounds (VOCs), which can then be...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Tiny-Fe-Ni-batteries-accelerate-soil-decontamination_2967.html
July 1, 2006
    Air pollution is monitored by many different regulatory programs, some of which require that emissions be measured continuously. This task is often accomplished by directly measuring air pollutants with continuous emissions monitoring systems (CEMS). In recent years, innovative technology has enabled a new approach that predicts emissions from process variables. Industry welcomes predictive...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/The-Maturation-of-a-Technology-Predictive-Emissions-Monitoring_2819.html
June 1, 2006
    Volatile organic compounds (VOCs), together with particulate matter, sulfur oxides and nitrogen oxides, are major components of air pollution that can lead to serious environmental and health hazards. Physical, chemical and biological treatment methods are available to remove VOCs from the air by either recovery or destruction [1-3]. Biological treatment methods, while less well-established...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Biological-Treatment-of-VOCs_2781.html
June 1, 2006
    The heat-trapping potential of CO2 and the other major greenhouse gases (GHG)1 in the Earth’s atmosphere, while once hotly debated, is now undisputed, according to the U.S. Environmental Protection Agency (EPA; Washington, D.C.; epa.gov) and a growing list of international scientists and business leaders (see Box, below: Thin ice). With 165 countries having ratified the Kyoto Protocol...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Newsfront-Global-warming-On-the-front-Burner_2778.html
June 1, 2006
In families, organizations or nations, it can happen that when leaders at the top do not lead, those supposedly led take things into their own hands. That seems like an adequate, if imprecise, summary of how the largely regional, state-level and corporate response to global warming has recently been shaping up in the U.S. The details of facing up to CO2 and other greenhouse gases are spelled out in the...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Welcome-new-attention-to-Global-Warming_3097.html
June 1, 2006
Battelle (Columbus, Ohio; edlinks.che.com/5830-544) has licensed the Samms technology, developed at Pacific Northwest National Laboratory (PNNL; Richland, Wash.), to Steward Environmental...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Chementator-Mercury-removal_2958.html
June 1, 2006
Researchers at the Lawrence Livermore National Laboratory (LLNL; Calif.; edlinks.che.com/5830-551) have constructed a membrane of carbon nanotubes (CNTs) on a silicone chip, which has the potential to reduce the...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Chementator-Nanotube-membranes_2963.html
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