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…
This company has introduced a modular version of its biological water-treatment system, known as ABMet. The patented system uses naturally occurring microbes to reduce levels of selenium and other metals in water from coal mines and power plants. The ABMet…
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…
The Ultra-Serv Solid chemical-delivery system eliminates the hazards and concerns associated with transporting liquid chemicals within commercial, institutional and industrial facilities where workers must contend with potential exposure. Not only is safety improved, but also the volume of chemicals used…
The TARGA II HF, a new hollow-fiber ultrafiltration system, features an optimized cartridge and rack arrangement that results in one of the smallest-footprint products currently available. TARGA II HF fibers are ideally suited to meet drinking water requirements and provide…
The Dowex Marathon C10 is a strong-acid cation-exchange resin for removing contaminants from water in industrial water demineralization, condensate polishing and softening. An improved version of the product has been launched with a reduced mean particle size that increases resin…
After a nine-month field demonstration at BTX, Inc.’s Sleepy well site in Indiana, Pa., Altela Inc.’s (Albuquerque, N.M.; www.altelainc.com) AltelaRain 4000 water desalination system has been shown to turn Marcellus Shale wastewater into distilled water. The demonstration, funded by the…