Articles
Wastewater Ion Exchange Provides A Solution For Removal Of Vanadium From Petcoke Leachate Waste
December 9, 2009
•Case Study: Wastewater Ion Exchange Provides A Solution For Removal Of Vanadium From Petcoke Leachate Waste
By Siemens Water Technologies
In January 2006, Siemens Water Technologies was contacted by a California business that accumulates, stores and ships petroleum coke to its customers worldwide. "Petcoke" is a byproduct of petroleum refining and consists largely of carbon and ash residuals from crude oil processing. It is used as a fuel source and in the production of metals, among other uses. Depending on the source of the crude, the ash in petcoke will contain low to significant concentrations of nickel, vanadium, iron and other metals.
The petcoke at this customer's site was originally stored in uncovered concrete vaults. During a storm, the rainwater would percolate through the petcoke, leaching nickel and vanadium from the ash in concentrations higher than discharge limits. The customer contacted Siemens to find a reliable, straight-forward treatment method to remove these metals from accumulated rainwater.
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