Monthly Archives: April 2017

DuraMem® 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).

Organic Solvent Nanofiltration, i.e. separation of molecules dissolved in organic solvents through a semipermeable membrane, has gained great traction over the last decade. Advantages of OSN over conventional separation processes include lower energy requirements, conservation of expensive materials, and system robustness.

DuraMem® offers long term stability in most polar and polar aprotic solvents (acetone, tetrahydrofuran, dimethylformamide, isopropanol, acetonitrile, methylethylketone, ethyl acetate, and more), while PuraMem® series

How 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. The City of San Diego’s Pure Water San Diego program hosted a fun competition event at the conference, where they asked homebrewers to concoct their favorite pale ales or IPAs using water exclusively sourced from the reuse program, and then offer samples of the created goods to attendees.

In addition to the competition, local San Diego breweries such as Stone Brewing and Ballast Point also showed off a few specialty brews made from water sourced from the program and offered samples to attendees. So how did this process work?

The program in San Diego uses what is known

You 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.

When you are ready to select a product, simply place your mouse curser back over the “Ordering Information” tab and click. You will return to the ordering information tab without leaving the product page and can select the items needed.

Still have questions? Contact a Sterlitech representative directly via [email protected]

For consumers using disk, syringe, and capsule filters it is a common FAQ: How long will my filter last? Or, to put it another way: How much fluid can I expect to pass through my filter before it clogs? This seems to be a simple and reasonable question for a filter consumer: Would any of us purchase a product without an understanding of its service life? However, this apparently simple question is deceivingly complex as a multitude of factors influence filter service life. Service life can be defined as the total volume of fluid that is passed through a normal flow filter until it becomes clogged; this is commonly referred to as total throughput. It is nearly impossible to predict total throughput, even with a good understanding of the application. So, as a filter manufacturer, how would we suggest approaching this challenge?

Most laboratory filtration applications involve