Since 1982, WTS has assisted chemical manufacturers and users in finding disposal alternatives for waste and byproduct material streams. WTS operates within the American Chemistry Council’s Responsible Care Management System® to evaluate spent waste streams, off spec products, and obsolete/expired inventory for inclusion into responsible recycle and reuse programs. We have found specifically, material from both semiconductor chemical manufacturing as well as chip fabrication often presents an avenue for returned value, as opposed to a disposal cost. In some case, we may be able to also reduce your hazardous waste generator status by removing material from the RCRA world.
As a member and sponsor of SESHA, WTS welcomes you to contact us using the link below to submit materials you would be interested in evaluating or simply click contact us to answer any questions you may have.
Reuse of Calcium Fluoride Sludge/Filter Cake
WTS has assisted 2 Oregon-based semiconductor fabricators in finding a reuse alternative to landfill disposal for over 120 tons per year of Calcium Fluoride sludge/filter cake. WTS has partnered with a company that is able to use this material as a alternative cement ingredient. Thus far we have routed approximately 77 tons of this material for reuse, diverting it from landfill or other disposal methods. This is an ongoing sustainable solution for our customers, with continuing sustainability benefits.
Reuse of Inorganic Acids
Inorganic acids are another area where WTS has been able to find value. To date, WTS has moved more than 500 tons of sulfuric acid from fabricators in Colorado and California for use as raw ingredients for water treatment chemicals.
Recycling and Reusing Isopropanol and Various Mixed Solvents
Depending on the constituents and mixture, WTS may have recycle and reuse options for IPA and other mixed solvent streams. WTS has obtained approval for direct reuse of approximately 40 tons per month from 2 Oregon-based fabricators, providing an ongoing sustainable solution for our client, at a competitive cost, while facilitating the removal of this material from RCRA.
Expired Inventory
WTS may also have solutions for expired inventory. Working with our network of chemical distributors (operating under the Alliance for Chemical Distribution’s Responsible DistributionTM guidelines), WTS regularly assists clients whose raw materials are no longer fit for their product specifications, but are otherwise still useful in other applications. We recently assisted another Oregon fabricator in locating a resale opportunity through our network of chemical distributors for pallets of unused but expired IPA and NMP in addition to drummed Hydrochloric Acid, IPA, and Ammonium Hydroxide.
