Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2006-11-28
2006-11-28
Barry, Chester T. (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S668000, C210S679000, C210S749000, C210S170050, C210S667000, C210S669000, C210S670000, C210S672000, C210S673000, C210S675000, C210S688000
Reexamination Certificate
active
07141173
ABSTRACT:
The present invention provides a process for enhancing the metal contaminant sorption capacity of mineral compounds within a groundwater-bearing formation by manipulating the pH and the surface acidity of the mineral compounds. The process is useful in removing metal contaminants from groundwater within a groundwater-bearing formation, providing a backstop treatment for groundwater after previous water treatment, and for protection of water sources, for example well-head protection.
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Barry Chester T.
Welsh & Katz Ltd.
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