Monthly Archives: June 2017

Purchase of each package listed on the sheet below includes one carboy, the standard closed-cap and open-cap adapter as well as two additional Quick-Connect VersaCaps, one with 2 hose-barb ports and one with 3 hose-barb ports for easy filling, siphoning, and/or venting.
Carboy Special Promo Details 

Researchers 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.

In 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.

While it appears the sculpture is capturing quite a bit of particulate, the full data on its effectiveness is not yet confirmed; it seems there may be too much pollution for it to reduce air pollution except in the immediate vicinity.

Last month we examined filter selection strategies for maximizing service life in continuous use applications.  In this 3^rd installment, we will examine the use of prefilters to extend service life.

Clarifying liquids with high levels of suspended solids is challenging, especially for applications requiring submicron filtration.  In these applications, filter users who experience frustratingly short service life should consider using prefilters.  A suitable prefilter will reduce the particle fouling of the final filter and, consequently, the combination will have better total throughput than the final filter alone.

In general, the amount of particulate a filter can accommodate before becoming clogged is related to its pore size rating.  As filter pore sizes decrease, the smaller pores have reduced void volumes and reduced capacity for holding particulate.  Conversely, as filter pore sizes increase, the larger pores have increased void