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March 31, 2016
The U.S. Department of Labor’s Occupational Safety and Health Administration (OSHA) announced a final rule to improve protections for workers exposed to respirable silica dust. The rule will curb lung cancer, silicosis, chronic obstructive pulmonary disease and kidney disease in America’s workers by limiting their exposure to respirable crystalline silica. The rule changes the Permissible Exposure Limits (PEL) from the current levels of 100µg/m3 of air in general industry (250µg/m3 in construction) to 50µg/m3, averaged over an eight-hour shift. In addition, OSHA affirms in the rule the use of X-Ray Diffraction on silver membrane filters as one of two validated methods for detecting and quantifying airborne crystalline silica in the affected workplace environments.
Sterlitech silver membrane filters are an ideal tool to help keep at-risk workplace environments safe and in accord with the Department of Labor’s final ruling. Affected industries include foundries, abrasive blasting operations,
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March 17, 2016
Sterlitech is excited to announce the availability of small spiral wound membrane elements. At about 1.8” diameter and 12” in length, 1812 spiral wound elements are perfect for scaling up from flat sheets or as a more complete test before pilot scaling. 1812 elements are also ideal for small-scale production, feasibility studies, and product or process development. Operable up to 600 psi, Sterlitech offers SS316 Housing, which is a universal design compatible with the 1812 elements commercially available here.
Sterlitech currently offers commercially available 1812 spiral wound membrane elements from GE, Nanostone, Sydner, and TriSep in a wide range of MWCO, membrane material and surface properties. To browse our complete selection of 1812 spiral wound elements or to place an order with us, click here.
For more information or if you need assistance to find products suited for a specific application, please contact Sterlitech.
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March 10, 2016
The Toray UTC-73U flat sheet membrane is being discontinued by the manufacturer and replaced by the Toray UTC-73UAC membrane.
Product UTC-73UAC(New) UTC-73U(Old) Manufacturer Toray Toray Applications Low Energy, High Rejection
Brackish Water TreatmentWater Treatment/Desalination pH Range 2-11 2-11 Permeate Flux (gfd1)/psi 29-40/150 29.5/109 NaCl Rejection 99.5-99.7% 99.4% Polymer Polyamide Polyamide 1 GFD: Gallons per Square Feet Membrane Active Area per Day Discontinued products will include the following Sterlitech Part numbers:
- YM73USP18
- YM73USP195
- YM73USP4205
- YM73USP475
Limited quantities of Toray 73U are still available. For more information or for assistance with finding a suitable replacement, please contact Sterlitech. Additional RO membranes can be found here.
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March 10, 2016
Sterlitech is launching new flat sheet membranes from TriSep: SBUF and SBNF membranes. SBUF and SBNF are particularly suited for treating surface waters and for the removal of organics and color.
Product SBUF SBNF Manufacturer TriSep TriSep Applications Process/Water Treatment Process/Water Treatment pH Range 4-7 4-7 Permeate Flux (gfd1)/psi NA NA MWCO 8,000 Da 2,000 Da Polymer CA-Blend CA-Blend 1 GFD: Gallons per Square Feet Membrane Active Area per Day These new additions are available in large sheets, as well as in precut coupons for use in the Sepa CF filtration cell, CF042 filtration cell, and most stirred cells. Custom membrane sizes are also available upon request. For more information about SBUF and SBNF or if you need assistance to find products suited for a specific application, please contact Sterlitech. To browse our complete selection of flat sheet membranes or to place an order with us, click here.
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January 19, 2016
Sterlitech is launching new flat sheet membranes from Dow: BW30XFR. This is a Brackish Water Reverse Osmosis Membrane particularly suited for water treatment and desalination. The BW30XFR replaces the obsolete BW30FR; however, limited quantities of BW30FR are available at the moment, please contact Sterlitech for more information or if you need assistance finding a suitable replacement product.
Product BW30XFR(New) BW30FR(Old) Manufacturer Dow Dow Applications Water Treatment/Desalination Water Treatment/Desalination pH Range 2-12 2-11 Permeate Flux (gfd1)/psi 28-33/225 26/255 NaCl Rejection2 99.96% 99.5% Polymer PA-TFC Polyamide 1 GFD: Gallons per Square Feet Membrane Active Area per Day 2 99.65% NaCl rejection at 2,000 ppm NaCl feed, 225 psig feed pressure, 77°F (25°C). These new additions are available in large sheets, as well as in precut coupons for use in the Sepa CF filtration cell, CF042 filtration cell, and most stirred cells. Custom membrane sizes are also available upon request.
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January 18, 2016
Sterlitech is launching new flat sheet membranes from TriSep: UF5 and UF10 ultrafiltration membranes. UF5 and UF10 are particularly suited for food and dairy process applications, and applications involving protein concentration.
1 GFD: Gallons per Square Feet Membrane Active Area per Day These new additions are available in large sheets, as well as in precut coupons for use in the Sepa CF filtration cell, CF042 filtration cell, and most stirred cells. Custom membrane sizes are also available upon request. For more information about UF5 and UF10 or if you need assistance to find products suited for a specific application, please contact Sterlitech. To browse our complete selection of UF membranes or to place an order with us, click here.
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January 13, 2016
The TriSep UE10 flat sheet membrane is being discontinued by the manufacturer and replaced by TriSep UF10 membrane.
Series UE10 (Discontinued) UF10 (New) Manufacturer TriSep TriSep Type Process/Water Treatment Process/Water Treatment pH Range 2-11 2-11 Flux (gfd1)/psi 100/20 100/20 MWCO (Daltons) 10,000 10,000 Polymer Polyethersulfone Polyethersulfone 1 GFD: Gallons per Square Feet Membrane Active Area per Day Discontinued products will include the following Sterlitech Part numbers:
- YMUE101905
- YMUE10475
Limited quantities of UE10 are available at the moment, please contact Sterlitech for more information or if you need assistance finding a suitable replacement product. You can browse other UF membranes that Sterlitech offers at the moment here.
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November 10, 2015
This document gives general guidelines for cleaning Nanostone RO or NF elements in the ST, ST+, ST++ and DT-Module-Configuration. During normal operation the membrane elements can become fouled by constituents in the feed water. The most common foulants include mineral scale, biological, organic, colloidal particles, and metal oxides. The nature of the fouling is dependent on the system design and feed water. Proactive cleaning is necessary to reduce the potential for irreversible fouling. If the membranes are heavily fouled, the cleaning effectiveness may be reduced and the performance may be permanently impacted. At a minimum, RO/NF elements should be cleaned when:
- Normalized permeate flow drops 10-15%
- Normalized permeate quality decreases by 10-15%
- Normalized pressure drop increases 10-15%.
Notes:
- Ensure that the all water used in the cleaning process is chlorine free
- Ensure the direction of the flow during cleaning is the same as during normal operation
- Consult with Nanostone prior
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October 16, 2015Sterlitech was awarded as one of the Puget Sounds 100 fastest growing private companies in 2015!
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October 16, 2015
Inc. Magazine ranked Sterlitech Corporation on its 34th annual Inc. 5000, an exclusive ranking of the nation's fastest-growing private companies. The list represents the most comprehensive look at the most important segment of the economy—America’s independent entrepreneurs. Companies such as Yelp, Pandora, Timberland, Dell, Domino’s Pizza, LinkedIn, Zillow, and many other well-known names gained early exposure as members of the Inc. 5000.
