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

Displaying 401 - 420 of 437 stories.
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.che.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.che.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.che.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.che.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.che.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.che.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.che.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.che.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.che.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.che.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.che.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.che.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.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Chementator-Nanotube-membranes_2963.html
May 1, 2006
    Advances in catalytic cracking technologies are improving efficiency, product selectivity and environmental emissions. Optimum performance, reliability and flexibility of fluid catalytic cracking (FCC) units is essential for the continued competitiveness of refineries and their ability to meet market demands for refined products. FCC traditionally converts gas oil and heavier residual oil to...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Technology-Showcase-Trends-in-Fluid-Catalytic-Cracking_3073.html
May 1, 2006
Continuously measure chlorine in water The Model TCL (photo, upper left) is a complete system for the measurement of total chlorine in water. Comprised of a sample conditioning system, an analyzer and a sensor, this system provides continuous measurement and was designed to minimize maintenance requirements and operating costs. The sample conditioning system continuously injects a solution of acetic acid...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Focus-On-Boiler-and-Cooling-Water-Handling_2831.html
April 1, 2006
Last month, the Commission on Air Pollution Prevention of the VDI and DIN Standards Committee (Düsseldorf, Germany; edlinks.che.com/5828-544) published a new guideline (VDI...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/regulatory/Combustion-guidelines_2931.html
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.che.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.che.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.che.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.che.com/environmental_health_and_safety/environmental_mgmt/sustainability/Consider-Alternate-Fuels-To-Cut-Costs_2797.html
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