Articles
Hexavalent Chrome Treatment For Rinsewater Recycling Reduces Feedwater Demand And Wastewater Discharge
December 9, 2009
•Case Study: Hexavalent Chrome Treatment For Rinsewater Recycling Reduces Feedwater Demand And Wastewater Discharge
By Siemens Water Technologies
In 2006, Siemens Water Technologies was contacted by a hexavalent chrome plating customer for assistance in reducing water demand at the facility. The customer manufactures chrome plated parts and was seeking a solution that would allow increase in production without the need to expand existing pretreatment equipment used to condition city water and also avoid additional investment in the existing precipitation system. Increasing the flow of the wastewater system also required a permit revision.
Siemens' solution featured our wastewater ion exchange (WWIX) service. Wastewater ion exchange is a service-based option which utilizes ion exchange resins and other medias selected to remove specific ionic contaminants from groundwater, industrial wastewater, and process water for recycle. DOT approved vessels containing the selected resin or media treat the water until the capacity is reached. Once exhausted, the WWIX vessels are removed and replaced with fresh, DOT-compliant vessels and returned to service. Exhausted vessels are returned to our processing facility where the contaminants are removed from the media.
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