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Safety sensors designed for increased vibration resistance

This company’s Eden sensors (photo) now feature a solid-state, board-level design with radio-frequency identification (RFID) technology for increased resistance to vibration and greater security. RFID technology allows for large sensing distances and its vibration resistance decreases the risk of involuntary…

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Odor Issues and Solutions for Wastewater Treatment

Increasingly, wastewater treatment plants must address odors due to volatile contaminants. This guide provides an overview of odor causes and possible remedial actions Processes and applications that emit odor-causing air contaminants are common across many sectors of the chemical process…

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Dual-functioning MOFs maintain a comfortable room humidity

Researchers from the King Abdullah University of Science and Technology (KAUST; Thuwal, Saudi Arabia; www.kaust.edu.sa) have developed a metal-organic framework (MOF) material that can regulate the humidity levels within the “window” established by the American Society of Heating, Refrigeration and…

Powtech Show Preview 2017

Bulk solids experts, process technicians, engineers and plant operators from all over the world will gather in Nuremberg for Powtech 2017 (September 26–28; www.powtech.de). Around 900 exhibitors in six exhibition halls will be presenting their latest equipment and systems for…

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Mixing: Impeller Performance in Stirred Tanks

Characterizing mixer impellers on the basis of power, flow, shear and efficiency Mixing has been defined as “the application of mechanical motion in order to create fluid dynamic effects that achieve a desired process result” [1]. The process result is…

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Dry-Tray Pressure Drop of Sieve Trays Revisited

Data points from literature are refined into a single correlation defining dry-tray pressure drop in sieve trays The sieve tray has been in the marketplace as a distillation device for many decades. It has been used extensively on distillation tray…

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Bio-based xylitol lowers production costs

While demand for the artificial sweetener xylitol grows, expensive raw materials and low yields have kept production prices high. Now, a new process from S2G BioChem (Vancouver, B.C., Canada; www.s2gbiochem.com) aims to produce xylitol in a more cost-effective way, utilizing…

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Fuel tank for natural gas vehicles moves toward commercialization

Natural gas vehicles (NGVs) are attractive because of the low cost and wide availability of natural gas, plus the ability to connect to residential and business gas lines for fueling. Among the challenges for using natural gas as a fuel…

A skid-mounted water-treatment unit for small-scale applications

The R5 dissolved-air flotation (DAF) unit (photo) is modular and skid-mounted with variable tank sizes, flow and recycle rates to provide a customized, flexible solution for smaller water and wastewater treatment operations, pilot-plant testing and backup for unexpected plant equipment…

Advanced sensor technology reduces flowmeter vibrations

The Model FT4A thermal mass flowmeter (photo) is designed for monitoring pure gases, mixed gases and complex flare-gas compositions. Three onboard gas-selection menus encompass numerous configuration options. The meter features non-cantilevered advanced sensor technology that eliminates sensor element vibration, which…