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Water Treatment

Technology from Veolia Water Solutions is selected for potash and salt recovery in Spain

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…

New RO membranes with high salt rejection

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…

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Water-saving strategies for the CPI

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…

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This water-treatment system can aid disposal options for brine

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…

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Composites that can enhance forward osmosis

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…

Frac Water Reuse

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 expands its water-treatment operations to South America

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…

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Modern Concepts in Makeup Water Treatment

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…

Perkin Award reflects ChE trend

Last month, at a dinner at the Hyatt Hotel in Philadelphia, Pa., the SCI America International Group (Philadelphia, Pa.; www.soci.org), presented its Perkin Medal to Dr. Rodney H. Banks, a research fellow at Nalco (Naperville, Ill.; www.nalco.com). As Stephanie Burns,…

Increase capacity with these membrane filtration modules

The latest version of this company’s Puron membrane bioreactor (MBR) filtration modules allows a possible 25% increase in capacity over the previous version. The Puron PSH1800 offers superior solids management and reduced energy costs, the company says, thanks to a…