Archives :: Environmental, Health & Safety

Displaying 41 - 60 of 709 stories.
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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.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.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/protective_equipment/Compressors-N2-Expands-the-Applicability-of-Dry-Gas-Seals_10582.html
May 1, 2013
Some injuries are permanent; some injuries are total. People who work for, or near, small companies need to be protected just as much as those associated with large companies. Small companies, however, usually cannot afford to employ full-time, certified, degreed, safety professionals. From my own career experiences, it seems as though a company with less than 50 employees cannot afford to employ an expert...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/Small-company-safety_10475.html
May 1, 2013
The Advantage 1.0 is said to be the world’s first ATEX and IEC-Ex Zone 1/21 mobile phone with 3G technology. The device is a very robust, dust- and water-proof industry...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/This-mobile-phone-can-be-used-in-hazardous-zones_10496.html
May 1, 2013
Regardless of whether one is producing acrylic acid, butanediol, tetrahydrofuran or other chemicals, residues will arise that need to be disposed of. This company delivers turnkey thermal utilization plants for these and other production facilities that...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Thermal-treatment-of-residues-with-heat-recovery_10488.html
May 1, 2013
The U.S. Occupational Safety and Health Admin. (OSHA; Washington, D.C.; www.osha.gov) has flagged combustible dusts as one of its top issues since the Imperial Sugar Mill explosion in Port Wentworth, Georgia, that killed 14 employees and injured many others in February 2008. Combustible dust is, in fact, one of OSHA’s National Emphasis Programs (NEPs).   The situation today Despite the...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/dust_explosions/Combustible-Dust-safety_10456.html
April 19, 2013
Praxair, Inc. (Danbury, Conn.; www.praxair.com) and Valero have successfully implemented Praxair’s new CONOx emissions-control technology at Valero’s petroleum refinery in Ardmore, Oklahoma. This technology has helped the refinery meet its fluid-catalytic cracking (FCC) unit oxides-of-nitrogen (NOx) reduction target without requiring a shutdown for installation. FCC units convert petroleum...
http://www.chemengonline.com/environmental_health_and_safety/environmental_mgmt/air_pollution_control/Praxair-and-Valero-successfully-implement-patented-CONOx-technology_10440.html
April 1, 2013
What if someone were to tell you that there is one method available for sizing relief valves that applies to virtually every situation, including two-phase flow and supercritical fluids? And what if they told you that method is more accurate and easier to use than traditional methods or formulas? As it turns out, both of these statements are true. The approach described here — the Direct Integration...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/The-Direct-Integration-Method-A-Best-Practice-for-Relief-Valve-Sizing_10394.html
April 1, 2013
This article provides guidance to the designer and operator of a safety-instrumented system (SIS), with an emphasis on conducting measurements. The use of best practices to ensure the strength of the overall system design, and the use of instrument diversity to combat common causes of failure, are covered briefly. Greater detail are provided on the use of new technologies — in particular, new...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/alarm_mgmt/Safety-Instrumented-Systems-Focus-on-Measurement-Diagnostics_10393.html
March 25, 2013
Users design safety instrumented systems to bring the risk of identified process hazards to within tolerable levels, using application-specific risk...
http://www.chemengonline.com/environmental_health_and_safety/plant_and_personnel_safety/Design-Safety-Instrumented-Systems-with-Relevant-Data_10361.html
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