Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2007-04-03
2007-04-03
Bushey, Scott (Department: 1724)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S644000, C210S321790, C210S321840, C210S321880, C261S124000
Reexamination Certificate
active
10986942
ABSTRACT:
An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.
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Cote Pierre Lucien
Janson Arnold
Rabie Hamid R.
Singh Manwinder
Bereskin & Parr
Bushey Scott
Zenon Technology Partnership
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