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Displaying 21 - 40 of 698 stories.
January 1, 2014
Dust is a critical consideration in the chemical process industries (CPI) from both a process safety standpoint — as a potential fire and explosion hazard — and from an occupational safety standpoint — as a potential worker exposure hazard. Reinforcing basic concepts about dust behavior and properties can help reduce the risks. Health hazards Airborne particles are solids suspended in the...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Dust-Hazards_11362.html
January 1, 2014
Rising temperatures and rapid or excessive heat buildup are useful markers for determining the operational health of many types of machinery and components that are used in a wide array of industrial and manufacturing settings. The types of mechanical and electrical systems for which temperature increases often signal problems include (but are not limited to): rotating machinery, such as motors, turbines...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/protective_equipment/Remote-Thermal-Sensing_11336.html
December 1, 2013
When the U.S. Occupational Safety and Health Administration (OSHA) revised the U.S. Hazard Communication Law, U.S. 29 CFR 1910.1200, in May of 2012, it set off an avalanche of change in the environmental, health and safety (EH&S) circles of American industry. Virtually every manufacturing and service industry will be involved in one aspect or another of adapting its existing hazard communication system...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/regulatory/The-Globally-Harmonized-System_11273.html
November 1, 2013
It is with extreme reticence that I author this page, even though I received permission several months ago to do so. FRI had a near miss in 2010, which was identical to a near miss that occurred in 2007. In the safety world, such things should never happen. In 2007, FRI was running butanes in its high-pressure test column. A gasket blew, releasing butanes to the atmosphere; the butanes did not ignite...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/A-repeat-near-miss_11176.html
November 1, 2013
Remox — the latest addition to this company’s Aquamove fleet of mobile water treatment solutions — is a membrane degasser that removes carbon dioxide and oxygen from water...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/The-launch-of-the-first-mobile-membrane-degasser_11166.html
November 1, 2013
Working in close proximity to the high pressures and temperatures commonly found in the chemical process industries (CPI) is cause enough for concern over a person’s wellbeing; but working in close proximity to chemicals that are considered toxic, hazardous or reactive escalates that concern to a higher degree (Figures 1 and 2). The dangers of such chemicals underline the paramount importance of...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/process_safety_mgmt/Piping-Design-for-Potentially-Lethal-Chemicals_11173.html
October 1, 2013
Chemical, pharmaceutical and related industries produce large amounts of wastewater in their production and cleaning processes. The wastewater characteristics are often diverse, and may include minimally biodegradable or toxic substances, or both. To protect the environment, these wastewaters typically must be treated to minimize pollutant concentrations before discharging to the environment, or to...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Biological-Wastewater-Treatment-Selecting-the-Process_11067.html
September 1, 2013
Newson Gale Avert static electricity buildup with this hose-continuity tester The OhmGuard Hose-Continuity Tester is designed to continuously ensure that a string of assembled hoses are safely grounded to the transferring vehicle during operations that may produce potentially combustible gas, vapor or dust atmospheres. These testers protect against static electricity that can accumulate to dangerous levels...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/Focus-on-Safety-Equipment_10939.html
September 1, 2013
This company’s Bio-Cell sheet, which makes up the core of its Bio-Cell MBR (membrane bioreactor) module, has a self-healing mechanism. Due to its sandwich-like and self-supporting structure...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/These-MBR-membranes-are-self-healing_10931.html
August 1, 2013
The pending water shortage I thank you for the exciting editorial titled The pending water shortage in CE, June 2013 [p. 5]. I fully agree with you that voluntary efforts are needed immediately to do everything possible to drastically bring down the water intensity of present industrial operations. Taking note of your points, we are [working] on serious efforts in engaging with India’s chemical...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/August-Letters_10773.html
July 1, 2013
SJV Hose Jet Filters remove dust from air flowrates from 10,000–500,000 m3/h and are suitable for use in the non-metallic industry, wood and plastic processing, blast-furnace operations, and other...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Capture-dust-from-large-airflows-with-this-system_10675.html
July 1, 2013
Scaling, fouling and corrosion have long been the enemy of cooling-tower water. While these issues still present significant water-treatment hurdles, today’s processors are also dealing with “impaired” water streams and increasing restrictions affecting intake and discharge water, among other challenges. This one-two punch has necessitated a hybrid approach — one that includes both...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Cooling-tower-Water-A-Hybrid-Problem-Calls-for-a-Hybrid-Solution_10653.html
July 1, 2013
Last month at Aquatech China (Shanghai; June 5–7), this company introduced a new addition to its range of membrane-separation elements for reverse osmosis (RO)-based water treatment, namely, Low-Energy...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/RO-membrane-modules-for-lower-energy-consumption_10667.html
July 1, 2013
Security of SCADA (supervisory control and data acquisition) and other industrial control systems (ICSs) is a complex subject, and one that has received much attention in recent years. While modern industrial control systems use many of the same computers, operating systems and networking components as conventional business networks, the two kinds of networks are managed very differently. As a result, what...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/plant_security/Securing-Industrial-Control-Systems_10695.html
June 10, 2013
Siemens Energy (www.siemens.com/energy) will supply a wet-air-oxidation treatment system to handle ethylene spent caustic as part of an ethylene plant expansion. Customer is Qatar Petrochemical Co. (QAPCO), one of the leading companies in the Middle East that produces and supplies ethylene. The Zimpro wet air oxidation (WAO) system from Siemens will be part of QAPCO’s facility in Mesaieed Industrial...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Siemens-to-supply-wet-air-oxidation-system-to-Qatar_10617.html
June 1, 2013
There is an emerging crisis brewing for the chemical processing industries (CPI) in many regions of the world. Those regions include China, the world’s manufacturing powerhouse; swaths of the U.S., including large parts of its South; and chunks of Europe. For once, the crisis has nothing to do with energy costs. The emergence of cheap shale gas in the U.S., and the identification of exploitable...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/The-pending-water-shortage_10553.html
June 1, 2013
This flowrate totalizer has an explosion-proof enclosure Precision Digital The PD6830 ProtEX-RTP Pulse Input Rate/Totalizer has a rugged, explosion-proof, NEMA 4X enclosure and is designed for the quick and easy display of local or remote flow information in hazardous areas. The SafeTouch through-glass buttons allow operation without removing the cover. Flowmeter k-factor units are automatically converted...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Focus-on-Explosion-Protection_10580.html
June 1, 2013
During process operations, elevated pressure inside of isolated zones within a process or system can be rapidly reduced by the release of gas and vapor to a dedicated blowdown network. Analysis can be carried out to determine whether a given pressure-relief device will provide sufficient protection from potential vessel rupture for an unwetted-wall vessel or a vessel containing a high-boiling-point liquid...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/overpressure_and_runaways/Vapor-Depressurization-Concept-and-Implementation_10589.html
June 1, 2013
Ongoing advances in the design and use of dry gas seals (DGSs; [ 1]) — as an alternative to traditional oil-lubricated wet seals [ 2] — have helped to improve the reliability and efficiency of compressors throughout the chemical process industries (CPI). One of the major design considerations in mechanical seals is how to protect seal faces from wear, as one face rotates close to a static face...
http://www.che.com/environmental_health_and_safety/plant_and_personnel_safety/protective_equipment/Compressors-N2-Expands-the-Applicability-of-Dry-Gas-Seals_10582.html
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