Water/Waste Processing - Feb 2012
New Product Spotlight Probe Improves pH Response Ocean Optics new R1000 4 reflection probe maximizes efficiency of pH measurement Paired with Ocean Optics nonintrusive reflective pH sensing patches the R1000 4 overcomes the shortcomings of alternative pH measurements methods to deliver accurate pH response in turbid or colored environments Ocean Optics optical pH sensor systems consist of a fiber optic probe that accommodates pH reactive patches plus a light source spectrometer and software Indicator material patches and probes can be optimized for monitoring pH in a variety of samples and conditions from clear and lighter colored samples such as alcohols and solvents to turbid and optically dense samples such as slurries and surface waters Sensing patches can be applied directly to fiber optic probes or to cuvettes and other substrates The R1000 4 probe design greatly increases back reflection from reflective pH patches increasing signalto noise ratio for more accurate results according to the manufacturer Ocean Optics www oceanoptics com Write In 211 www waterwaste com Water Waste Processing February 2012 29 Membrane Contactors Membrana Charlotte recently announced the introduction of the 8 x 40 and 8 x 80 inch Liqui Cel Membrane Contactors to its degassing family of products This new product design uses ASME code rated reverse osmosis RO vessels for contactor housings The 8 x 40 and 8 x 80 devices are both rated to 300 psi These devices also utilize combined NPT and Victaulic connections on the shellside for a stacked system design that reduces the footprint and weight Both the 8 x 40 and 8 x 80 Membrane Contactors utilize cartridges of polypropylene hollow fiber inside of the RO vessel An individual 8 x 40 module can process 57 284 m3 hr 25 125 gpm and an 8 x 80 can process 114 341 m3 hr 50 150 gpm Multiple contactors are piped together to handle higher flow rates The use of the RO vessels makes system design simple and easy because the vessels are already familiar to operators The reduced weight small footprint and high pressure capability make these devices especially suited for seawater degassing specifically on offshore platforms Liqui Cel Membrane Contactors offer a modular degassing option for many applications Membrana Charlotte www liquicel com Write In 212
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