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A handheld VOC meter for indoor air-quality maintenance

The HHAQ-107 meter (photo) makes general measurements of mixed-gas volatile-organic-compound (VOC) levels as part of an indoor air quality (IAQ) maintenance program. The HHAQ-107’s metal-oxide semi-conductor sensor can detect ammonia, toluene, ethanol, hydrogen sulfide (H2S) and cigarette smoke. Features of…

Avoid pelletization with this twin screw extruder

The ZSE-27 MAXX “direct-to-sheet” system (photo) facilitates rapid inline compounding and production of prototype sheet samples. Benefits of direct-sheet extrusion include the product having one less heat and shear history, and the economic savings inherent with bypassing the pelletization step.…

Inhibit corrosion with this new vinyl-ester-resin system

Flowchem is a new range of seamless, elastomer-modified vinyl-ester-resin systems that act as a barrier to inhibit the contact between chemical compounds or corrosive materials. Flowchem systems provide temperature resistance of up to 350°F, and exhibit high bond strength, abrasion…

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Continuously cleaned filters for challenging water streams

A new self-cleaning filter from Spiral Water Technologies Inc. (San Rafael, Calif.; www.spiralwater.com) can efficiently treat water with 25,000 mg/L total suspended solids (TSS). According to Spiral Water CEO Ashwin Gulati, the filters use much less energy — reportedly just…

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Thermochemical regenerator system demonstrated in glass facility

A patented thermochemical regenerator system developed by Praxair, Inc. (Danbury, Conn.; www.praxair.com) has been demonstrated at its first industrial site, a glass-making facility in Mexico. The system, known as the Optimelt heat-recovery system, lowers fuel consumption in oxy-fuel furnaces, which…

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A new catalyst removes cyanide from wastewater

Chemists at the University of Amsterdam (UvA; the Netherlands; www.uva.nl) have discovered a new catalytic method for removing cyanide ions from industrial wastewater. The heterogeneous catalyst — discovered jointly by Paula Oulego Blanco, Raveendran Shiju and professor Gadi Rothenberg from…

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This ‘ultrabattery’ makes its commercial debut

Ecoult Energy Storage Solutions (Sydney, Australia; www.ecoult.com) is entering the commercial and residential energy-storage markets with an “ultrabattery,” which was developed by CSIRO (www.csiro.au), with contributions from Furukawa Battery Co. (Yokohama, Japan; www.furukawadenchi.co.jp) and funding from the Australian and Japanese…

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High-efficiency cell removal

Acoustic wave separation (AWS) technology can improve cell-culture clarification in biopharmaceutical applications by enabling high-efficiency, continuous removal of cells in a closed system without centrifugation. Developed by FloDesign Sonics (Wilbraham, Mass.; www.flodesign.org) and licensed to Pall Corp. (Port Washington, N.Y.;…

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Making a mercury-removing polymer from industrial waste

Scientists at Flinders University (Adelaide, Australia; www.flinders.edu.au) have synthesized a new polymer that is extremely effective at binding to mercury for removal from water and soil. The new material — called sulfur-limonene polysulfide — is created from a reaction (diagram)…

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Large-scale production of carbon nanotubes

Last month, Zeon Corp. (Tokyo, Japan; www.zeon.co.jp) started up the worlds first mass-production plant for high-grade carbon nanotubes (CNTs) at its Tokuyama facility in Shunan City, Yamaguchi Prefecture, Japan. The plant produces CNTs with more than 99% purity using the…