System and method for treatment of acidic wastewater

Details System and method for treatment of acidic wastewater System and method for treatment of acidic wastewater

2004-07-26

2008-10-21

Drodge, Joseph W (Department: 1797)

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

C210S202000, C210S259000, C210S266000, C210S652000, C210S702000, C210S754000, C210S764000, C210S806000

Reexamination Certificate

active

07438817

ABSTRACT:
A wastewater treatment system comprising separation unit operations inhibits or promotes the formation and precipitation of species by controlling the pH of wastewater to be treated entering into the separation unit operations. The separation unit operations include first and second reverse osmosis devices. The first reverse osmosis device treats wastewater having pH that is less than about 3.5 and the second reverse osmosis device treats wastewater, from the first reverse osmosis device, having a pH that is about 6 or higher.

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