Page 9 - Water and Fluid Separation News
Read all about the latest advancements in water treatment and fluid separation.
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November 01, 2010
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Scientists at Michigan State University and the PERMEANT Group describes how they are infusing membranes with nanotechnology in order to improve membrane performance, particularly in the field of water purification.While the use of nanotechnology to expand membrane permeability, selectivity, and resistance has grown more frequent over the last 20 or so years, the new research by these groups is taking this approach in interesting directions.For instance, on one project they have demonstrated that by adding silver nanoparticles into the polymer matrix of the membrane that the mixture is effective at reducing intrapore biofouling.Experimentation also shows that this method could also be used to inhibit the biofilm growth on downstream membrane surfaces.Hopefully with every little improvement that these teams make will lead them a step closer to their goal of making the world’s supply of drinking water safer for all of us.ÂYou can read more about this research here. -
October 18, 2010From this recent article in NanoLetters, the American Chemical Society Journal, comes information about a new form of water sterilization out of Stanford University that takes advantages of the unique bacteria-killing properties of silver (the vampire and werewolf killing properties of silver have yet to be proven). Basically, the proposed multiscale device would perform high speed electrical sterilization of water using a combination of silver nanowires, carbon nanotubes, and cotton. The end result is that when operating at 100,000 L/(h m2) this device can inactivate greater than 98% of bacteria with only several seconds of total incubation time.The author’s of this paper mention two interesting reasons for why silver is used in the device. The first:      ÂTaking advantage of silver nanowires’ (AgNWs) and CNTs’ [Carbon Nanotube] unique ability to form complex multiscale coatings on cotton to produce an electrically conducting and high surface area device for the active,
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September 17, 2010
Had your fill of liquids? You're probably not alone. According to a new survey by Laboratory Equipment magazine, over 90% of lab researchers use liquid handling equipment, and about 60% are using their equipment either continuously or several times daily. As for filtration equipment, 52% of respondents are using it - now we just need to get the other 48% on board!!! You can check out the full results over at the Laboratory Equipment site: Liquid Handling Dominates Lab Activities
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