Method and system for treating wastewater
First Claim
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1. A method of treating wastewater comprising acts of:
- measuring a flow rate of the wastewater into a vessel;
immersing a membrane module in the wastewater;
air scouring the membrane module; and
regulating a rate of air scouring in proportion to the flow rate of the wastewater.
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Abstract
The invention is directed to controlling wastewater treatment system operations in response to a demand associated with the influent conditions. Fluctuations or variations in flow and/or concentration characteristics of the liquid to be treated can create the reduce the operating demand and the treatment system can be operated to a reduced or standby operating mode by adjusting the operation of one or more unit operations or subsystems in response to such variations. The wastewater system can also be operated to treat an anticipated wastewater stream based on the historical characteristics of the stream.
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Citations
20 Claims
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1. A method of treating wastewater comprising acts of:
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measuring a flow rate of the wastewater into a vessel;
immersing a membrane module in the wastewater;
air scouring the membrane module; and
regulating a rate of air scouring in proportion to the flow rate of the wastewater. - View Dependent Claims (2, 3, 4, 5)
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6. A wastewater treatment system comprising:
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a vessel containing the wastewater;
a membrane module immersed in the wastewater;
a flow meter fluidly connected between the vessel and a source of the wastewater;
an aeration system disposed to air scour the membrane module; and
a controller in communication with the flow meter and the aeration system, and configured to generate a control signal that adjusts a rate of air scouring in proportion to a flow rate of the wastewater introduced into the vessel. - View Dependent Claims (7, 8, 9, 10)
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11. A wastewater treatment system comprising:
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a pump disposed to introduce the wastewater into a treatment vessel;
a membrane module disposed in the treatment vessel;
an aeration system disposed to air scour the membrane module; and
a controller in communication with the pump and the aeration system and configured to regulate a rate of air scouring in proportion to a flow rate of the wastewater introduced into the treatment vessel. - View Dependent Claims (12, 13)
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14. A computer-readable medium having computer-readable signals stored thereon that define instructions that, as a result of being executed by a computer, instruct the computer to perform a method of controlling a wastewater treatment system having a membrane module comprising acts of:
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receiving an input signal representative of a flow rate of the wastewater into the treatment system;
air scouring the membrane module; and
regulating a rate of air scouring based at least partially on the input signal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification