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Developed by Pacific Northwest National Laboratory, Thiol-SAMMS is an award-winning nanotechnology with broad applications in the remediation, water treatment, catalyst, sensor, and controlled-release markets.

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Document Title: Thiol-SAMMS
Category: Environmental Remediation
Media Type: Graphics
Date of Image/Photo: March 2005
Background: Thiol-SAMMS Removes Mercury from Water Pacific Northwest National Laboratory has developed an inexpensive and easy-to-use technology that absorbs mercury from complex waste streams. This nanostructured sorbent is called Self-Assembled Monolayers on Mesoporous Silica for mercury, or simply thiol-SAMMS. Mercury-laden wastes, which can be toxic to humans, are an expensive problem for offshore oil platforms and other industries. Thiol-SAMMS provides these industries a cost-effective treatment solution for their mercury-laden wastes. Thiol-SAMMS is faster than other sorbents. It adsorbs mercury about 500 to 1000 times faster, pulling more than 99.9% of the mercury out of solution in the first 5 minutes. Given its high affinity, thiol-SAMMS can adsorb more than half its weight in mercury. Thiol-SAMMS is less expensive than other options. The total cost for removing 1 kilogram of mercury is ~60% less than an ion-exchange resin and ~95% less than granulated activated carbon. Because thiol-SAMMS meets the environmental regulations for land disposal, its disposal costs are 10 to 3000 times less than other methods. This R&D 100 award-winning material has been used to remove mercury from laboratory wastes and is currently part of an ongoing commercialization effort.
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/AMER-6,Y_74

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