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

Displaying 201 - 220 of 444 stories.
July 1, 2009
An energy-autonomous process for capturing air humidity for drinking water has been developed by scientists at the Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB; Stuttgart; www.fraunhofer.de) and Logos-Innovationen GmbH (Bodnegg, both Germany; www.logos-innovationen.com). The concept...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Extracting-drinking-water-from-humidity_4919.html
May 1, 2009
Strategies for extracting more distillate from petroleum to meet the growing demand for diesel fuel constituted a major theme of the recent annual meeting of the National Petrochemical and Petroleum Refiners Association (NPRA, Washington D.C.; www.npra.gov) in San Antonio, Tex. Worldwide, the demand for distillate is expected to increase by more than 5 million bbl/d over the next 10 years, says Richard...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Petroleum-refiners-seek-to-increase-distillate-yield-decrease-emissions-_4777.html
May 1, 2009
The anthropogenic global warming debate experienced a reawakening last month, following the U.S. Environmental Protection Agency’s proposed finding that greenhouse gases contribute to air pollution that may endanger public health or welfare. In an effort to keep the debate from heading far off course, I must comment on one particular argument that is, in my view, nonsensical and ultimately distracts...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/regulatory/Keep-the-GHG-debate-on-point_4757.html
May 1, 2009
Edison Electric Institute (EEI) member companies support action to lower the country’s carbon and other greenhouse gas (GHG) emissions by 80% from current levels by 2050. And we want to do so in a way that softens electricity price increases for families and our energy-intensive customers, such as chemical manufacturers. A critical factor for achieving this goal within a federal cap-and-trade program...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/regulatory/Letter-to-the-Editor-Shaping-GHG-policies_4789.html
April 8, 2009
Fluor Corp. (Irving, Tex.; www.fluor.com) announced today that it was awarded front-end engineering for CO2 capture for the SaskPower Boundary Dam Integrated Carbon Capture and Sequestration Demonstration project in Estevan, Saskatchewan, Canada. The contract value for the first quarter award was not disclosed. If the project proceeds as planned, it would be the first commercial-scale carbon-capture system...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Fluor-selected-for-SaskPower-carbon-capture-engineering_4726.html
April 1, 2009
As CRTs become an obsolete form of video display technology, recycling their lead-filled glass is increasingly important Earlier this decade, liquid crystal display (LCD) and plasma screens surpassed cathode ray tubes (CRTs) as the visual display of choice in computers and televisions. While the production of CRTs has dwindled to nearly nothing, we will still deal with end-of-life (EoL) units for years to...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Recycling-Cathode-Ray-Tubes_4644.html
April 1, 2009
The U.S. Environmental Protection Agency (EPA, Washington D.C.) plans to set up the first U.S. national system for reporting emissions of CO2 and other greenhouse gases. The proposal marks the first step toward a program for climate control. "Through this new reporting we will have comprehensive and accurate data...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Chementator-EPA-proposes-national-reporting-system-for-greenhouse-gases_4679.html
March 27, 2009
Carbon dioxide is the most prevalent greenhouse gas (GHG) believed to be responsible for global warming. CO2 levels are rising at an accelerated rate with the increasing global demand for transportation fuels and power. Today, worldwide CO2 emissions amount to 7.9 tons per year and are expected to grow 75% to 13.9 tons by 2030. Coal is an abundant and relatively inexpensive energy source. Coal-fired power...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/CO2-capture-now-possible-for-commercial-coal-fired-power-generation_4635.html
March 24, 2009
Siemens Energy (Erlangen, Germany; www.siemens.com/energy) will adapt its proprietary process for carbon dioxide capture to the special conditions prevalent in and mode of operation of combined-cycle power plants for the Norwegian utility Statkraft. The project kicked off in January 2009 and is scheduled to be completed within two years. This technology will then be available for industrial-scale...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Siemens-develops-CO2-capture-technology_4626.html
February 1, 2009
Ultrasound has been applied, with limited success, for the remediation of contaminated soil. Up to now, the approach has been to first extract the contaminant from the soil into a liquid, which is then passed through a sono-reactor where the contaminants are destroyed by high temperatures and pressures (more than 5,000K and 1,000 atm) generated by cavitating bubbles. A new process developed by a team from...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/Chementator-Sonicating-slurries-speeds-soil-remediation_4521.html
February 1, 2009
Globally, water reuse and recycling are not uncommon — with parts of Australia, South Africa and the Middle East rather heartily embracing the practice. Even in Europe, it is estimated that 75 to 80% of water is reused. However, because fresh water is prevalent and plentiful in most parts of the U.S., few domestic chemical processors, or other industrial consumers of water, have yet to take the...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Water-reuse-and-recycling-Taking-the-Plunge_4492.html
January 1, 2009
Ceramic filters are well suited for high-temperature processes that are subject to strict emissions limits, including those for dioxins About Incineration Incineration processes are being widely used more and more to deal with the disposal of waste materials. In many countries, land filling of waste materials is not practical or desirable due to a lack of appropriate sites. Incineration has the benefit of...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Controlling-Emissions-With-Ceramic-Filters_4445.html
January 1, 2009
Aiming at bringing down the barriers to the commercial deployment of post-combustion capture (PCC) of CO2, an Australian team from CSIRO Energy Technology (Newcastle, New South Wales; www.csiro.au), CSIRO Energy Technology (Clayton South, Victoria), and several other research organizations has developed an integrated PCC R&D and pilot plant program. The program includes four pilot plants: The Latrobe...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Chementator-More-efforts-to-capture-CO2-from-power-plants_4455.html
January 1, 2009
For wastewater treatment, membrane bioreactors (MBRs) provide superior effluent quality in a small footprint compared to alternative activated-sludge treatment methods. However, MBRs are prone to fouling, and thus may require frequent membrane cleaning with the associated manpower and chemical costs. Microdyn-Nadir GmbH (Wiesbaden; www.microdyn-nadir.de), in cooperation with Darmstadt University (both...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Chementator-This-mechanical-cleaning-process-reduces-fouling-in-MBRs-without-chemicals_4456.html
December 10, 2008
Arnhem/The Hague, 8 December 2008, Essent Business Development B.V. (Essent) and Shell Gas & Power Developments B.V. (Shell; The Hague; www.shell.com)  agreed to study the feasibility of a 1,000-megawatt, low-CO2 power plant. Most of the CO2 produced by the plant would be captured and stored underground. Essent and Shell today signed a Memorandum of Understanding for the feasibility study. Shell...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Essent-and-Shell-take-step-toward-low-CO2-power-plant_4406.html
December 8, 2008
Alstom (www.power.alstom.com) and PGE Elektrownia Belchatow S.A. have signed a memorandum of understanding (MoU) for the development and implementation of carbon capture and storage (CCS) technology at the Belchatow power plant in Poland. In a first phase, Alstom will design and construct a pilot carbon capture plant at the existing Unit 12 of the Belchatow power plant, which would capture approximately...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/AlstomPGE-Elektrownia-Belchatow-plan-Polish-CCS-project_4403.html
December 1, 2008
When it comes to dust collection in the chemical process industries (CPI), there exists a wide variety of needs. For example, folks in dyes and pigments have a different set of dust collection challenges than those in the pharmaceutical industry, who have differing requirements from processors working with paints and varnishes. However, any and all chemical processors can boost process efficiency by...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Newsfront-Dust-collection-Clean-up-your-act_4364.html
December 1, 2008
RTI International (Research Triangle Park, N.C.; www.rti.org), in partnership with Eastman Chemical Co. (Kingsport, Tenn.) and the U.S. Dept. of Energy (DOE; Washington, D.C.), has developed a modular technology package that removes numerous contaminants — including sulfur, NH3, HCN, HCl and heavy metals — from coal- and petcoke-derived syngas at elevated temperatures (400–1,000°F)...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Cleaning-syngas-at-high-temperatures_4390.html
December 1, 2008
With last month’s proclamation by President-elect Barack Obama that his administration would move to cut U.S. greenhouse-gas emissions, it appears that the U.S. may finally get in step with the 182 countries that have signed the Kyoto Protocol. Obama pledged to establish a cap-and-trade system with the goals of lowering emissions to 1990 levels by 2020, then reducing them an additional 80% by 2050...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Newsfront-Capturing-CO2_4363.html
December 1, 2008
While monoethanolamine (MEA) is the traditional solvent for scrubbing CO2 from fluegas, more effective methods, including solid absorbents, are being developed (see CE, December 2008, pp. 16–20). Sodium carbonate, for example, is the sorbent in a process being developed, with DOE support, by Research Triangle Institute (RTI, Research Triangle Park, N.C.; www.rti.org). Desulfurized fluegas from a wet...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/greenhouse_gases_and_climate_change/Chementator-Two-solid-ways-to-remove-CO2-from-fluegas-one-based-on-Na2CO3-_4392.html
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