Reprinted from Pumps and Systems By Thomas L. O’Connor Our company has been designing, fabricating and installing air cleaning and fume scrubbing systems since 1972. Every once in a great while, we run into an emergency that demands beyond the call of duty activity from other designers, construction crews and suppliers. In October 1991, I […]
TL-128 – Big Scrubber, Big Pump, Big Emergency Read More »
Reprinted from CHEMICAL ENGINEERING Submerged in acidic wastewater for years, these polypropylene pumps are still thriving When estimating the potential life of severe-service process pumps, design engineers often think in terms of years, not decades. Back in 1977, Dyno Nobel (Carthage, Mo.) — owner of the last remaining dynamite plant in North America — selected
TL-129 – Three Sump Pumps Survive 18 Years of Corrosive Service Read More »
Reprinted from POLLUTION ENGINEERING INTERNATIONAL A manufacturer of military equipment faced a difficult waste-handling problem because of the many corrosive electroplating and metal finishing solutions held in the processing areas. Extreme temperature variations and environmental elements also were of concern. Site temperatures ranged from slightly below freezing to 44°C. Some of the waste collection sumps
TL-130 – PVC Tank/Pump Systems Handle Corrosive Waste Read More »
Reprinted from Chemical Processing Les Owens, Facilities Engineer, Nalco Chemical Co., Garyville, LA John McCallion, Senior Technical Editor Non-metallic collection system ends underground waste lines Corrosion rebuffed, environment protected To eliminate any possibility of soil or groundwater contamination, Nalco Chemical Co. moved all waste handling lines aboveground at its Garyville, LA, plant in 1993. A
TL-131 – Eliminating Underground Waste Lines Read More »
Reprinted from Chemical Processing Dan Besic, Chief Engineer, Vanton Pump & Equipment Corp. Non-metallics offer broad abrasion and superior corrosion resistance Although the use of thermoplastic pumps has become so common that some designs are now being carried on the shelves in distribution stocks, for those applications involving highly corrosive or abrasive fluids, selection of
TL-132 – Critical selection factors for thermoplastic pumps Read More »
Kenneth Comerford Vice President Vanton Pump and Equipment Corp. Ever tightening regulations and heightened environmental responsibility have driven industrial and municipal facilities to rethink leak prevention, particularly when handling acidic, caustic and abrasive solutions that cause packing and mechanical seals to fail, and toxic solutions that demand failsafe containment. To transfer these solutions, operations and
Reprinted from World Pumps Guide to the selection of materials for pumping the halogen bromine In this second of a series of articles on materials selection for pumping corrosive, abrasive and hazardous chemicals, George Black considers the problems presented by bromine. Dense, toxic and highly aggressive, its handling demands specialized pumping solutions, as illustrated by
TL-159 – Pump Material Selection Guide: Bromine Read More »
Reprinted from Water Engineering & Management Water & Waste Digest By Larry Lewis and Ken Galardi, P.E. Three significant reputations for innovative, reliable solutions to environmental problems came together as the Singapore Ministry of the Environment (ENV) planned for expansion and upgrading of its water and wastewater treatment facilities at Ulu Pandan Sewage Treatment Works
TL-160 – Neutralizing Noxious Odors at Singapore’s Ulu Pandan Sewage Treatment Works Read More »
Reprinted from World Pumps Guide to the selection of materials for pumping NaOH and NaOCl This third article in an on-going series on the selection of materials for pumping corrosive, abrasive and hazardous chemicals considers the challenges presented by the caustic alkali sodium hydroxide and its close relative sodium hypochlorite. George Black looks at the
TL-161 – Pump Material Selection Guide: NaOH Sodium Hydroxide/NaOCl Sodium Hypochlorite Read More »
Reprinted from Pumps and Processes By George Black, Materials Engineering Consultant, Vanton Pump & Equipment Corp. A fresh look at recent design developments Every research study on pump usage clearly indicates that horizontal centrifugal pumps are the most widely used pump type for industrial, chemical and municipal processing, and waste treatment operations. Many years ago,
TL-162 – What’s New with Thermoplastic Centrifugal Pumps? Read More »