The complete Pista Works headworks system combines several headworks processes — screening, grit removal and grit washing — into one skid-mounted package. Each system is preassembled and shipped directly to the job site on one truck, thereby significantly reducing field…
A new hydraulically driven, positive-displacement-pump system can lower the energy requirements for pumping water by 10% in large seawater reverse osmosis (SWRO) desalination plants, where electricity typically represents the largest cost. Recently launched by GE Water & Power (www.ge-energy.com) at…
Veolia Water Solutions & Technologies (Saint Maurice, France; http://www.veoliawaterst.com) has been awarded the supply of a large-scale evaporation and crystallization plant by Iberpotash, S.A., a business unit of ICL Fertilizers. Iberpotash produces potash fertilizers from sylvinite mining from deposits located…
Five new types of Lewabrane membrane-separation elements for reverse osmosis (RO) are now available. As of July, high-rejection (HR) types with membrane surface areas of 370 and 440 ft2, and high-flow (HF) types, with membrane surface areas of 370, 400…
Reducing freshwater consumption and wastewater discharge at large petroleum-refining and chemical-production facilities can lower costs, while allowing plants to expand production capacities without having to secure additional freshwater resources and without having to enlarge their wastewater treatment plants. The key…
A six-stage water treatment process involving electrocoagulation (EC) and multi-stage flash (MSF) distillation could improve options for the disposal of sludge and brine in applications that include the treatment of water from hydraulic fracturing of oil and gas wells (see…
Researchers from the Dept. of Chemical Engineering, Monash University (Clayton, Victoria, Australia; www.monash.edu), have reported on a new composite polymer hydrogel with light-absorbing particles incorporated within it, that can be used as draw agents in the forward osmosis (FO) process…
Production of natural gas from shale formations presents key water management challenges. As the number of gas drilling operations continues to grow in shale plays around the world, and the practice of hydraulic fracturing (frac or fracing) of gas wells…
Kroff, Inc. (Pittsburgh, Pa.; www.kroff.com) is expanding internationally with the establishment of operations in South America and the creation of a new company called Kroff Chile - Tecnologías y Procesos Limitada. Based in Santiago, Kroff Chile - Tecnologías y Procesos Limitada is positioned…
Water and steam are vital components of virtually all plants in the chemical process industries (CPI). And, a very important operation is the treatment of makeup water to produce the purity required for certain applications, most notably for use in…