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…
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,…
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…
For years it has been the common practice to treat process water with various chemistries to prevent scale, corrosion and microbiologicals. However, as regulatory issues tighten, water scarcity becomes a growing concern and the cost of treatment chemicals increases, chemical…
An alternative desalination process that reduces energy consumption by over 50% compared to best available technology (BAT) has been successfully piloted by the Industry Sector of Siemens AG (Munich, Germany; www.siemens.com), in collaboration with Singapores national water agency, PUB, and…
In June, the U.S. Environmental Protection Agency (EPA; Washington, D.C.; www.epa.gov) announced the winners of the 2011 Presidential Green Chemistry Challenge Awards. Winners of the Challenge, which promotes R&D of less hazardous alternatives to existing technologies that reduce or eliminate…
Forward osmosis (FO) has been recognized as a valuable technology for many applications including wastewater reclamation, seawater desalination, and energy production, due to the low energy input required. The osmotic pressure gradient across a semipermeable FO membrane causes water to…
A new hollow-fiber membrane system, Targa II HF (photo), offers a cost-effective, safe, high-quality water solution for a variety of ultrafiltration applications, from drinking water to seawater pretreatment, industrial wastewater treatment and tertiary wastewater treatment. The membrane element features a…