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June 14, 2017Researchers frequently ask, “what is the purpose of the shims and spacers for use with the membrane test cells, and do I need them?” Curious to know more? In response to this common question Sterlitech’s own Sepideh Jankhah explores this topic in her recently published Paper, which investigates the hydrodynamic conditions in a bench-scale membrane flow-cell (CF042 Cell). It looks at the ways in which parameters such as the feed crossflow velocity, geometry of the cell, and feed spacers, affect system hydrodynamics.
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June 13, 2017In the area of a former military building complex in the Chaoyang District of Beijing is a unique and thriving artistic community. In the middle of this art district, is a strange 7-meter tall tower shaped like an avant-garde metallic pineapple. Designed by Dutch artist Daan Roosegaarde, it is both an artistic creation and a functional tool meant to test a possible solution for Beijing’s worsening air pollution. The tower is a giant silver-colored ionizer and particulate trap designed to pull in and hold tiny pollutants, known collectively as PM 2.5’s. The tower works by releasing charged ions into the air nearby, causing the PM 2.5 particles to become trapped on the metallic fins as they are pulled from the air.
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June 13, 2017Last month we examined filter selection strategies for maximizing service life in continuous use applications. In this 3rd installment, we will examine the use of prefilters to extend service life.
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May 16, 2017Sterlitech now offers an Acrylic Sepa Test Cell in an additional channel depth: 34 mil. The original Acrylic Sepa Test Cell utilizes a 75 mil channel depth and has been widely used by researchers over the years. In many experiments involving the Sepa cells, combinations of stainless steel shims and polymeric spacers (with differing thicknesses) are installed in the cell to reduce the channel depth or mimic the hydrodynamic conditions of commercially available spiral-wound elements.
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May 16, 2017The use of polymeric membranes for filtration of non-aqueous solutions started around 1960 and has been developed significantly since then [1]. Today, non-aqueous membrane filtration applications in chemical and pharmaceutical processing account for more than 25% of the global total polymeric membrane market [2].
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May 16, 2017As we grow in understanding the significance different organisms have in the ecology of an environment, it helps tremendously if we know which organisms inhabit that environment – whether they’re supposed to be there or not. One method that is gaining widespread use, and relies on a simple filtration method, is the analysis of environmental DNA (eDNA) from local waterways.
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May 16, 2017Last month, we described the considerations associated with predicting filter service life and how total throughput can be estimated through experimentation. In this second installment, we will examine four filter selection strategies for maximizing service life in continuous-use applications. These aspects consider chemical compatibility, temperature, binding characteristics, and pore size.
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April 12, 2017DuraMem® and PuraMem® membranes are now available as a valuable addition to our Chemically Resistant Membranes product line. Duramem® and Puramem® polymeric membranes, made by Evonik, are market leaders for Organic Solvent Nanofiltration (OSN).
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April 12, 2017How about a nice tall glass of ice-cold beer… made from recycled sewage water? Did you hesitate? Well, now let’s think about it: most breweries use some combination of hops, malted barley, yeast, and…. well… clean water! But beer from recycled wastewater? That’s exactly what took place March 19-10 at the 2017 WateReuse California Annual Conference in San Diego.
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April 12, 2017You spoke and we listened! Many of you expressed difficulty in finding additional application or technical specifications while viewing a product page on www.sterlitech.com. Thanks to your feedback, each tab is now individually outlined and highlights when moving your mouse cursor over a given tab; information is just one click away! Simply place your mouse curser over the “Application/Specification” tab near the middle of the page (example shown to the left) and click. This will open the tab, and you will then have all pertinent information on your screen.
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