Patent ID: 11866348
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 11:
12. A method for treating a wastewater stream to produce an effluent stream, the method comprising:
determining, by a controller, a rate at which to supply a chemical additive to the wastewater stream;
varying, by the controller, the rate at which the chemical additive is supplied to the wastewater stream in real time based on
(i) a first stream of values output by a sensor that continuously measures clarity of the wastewater stream at least every 60 seconds, and
(ii) a second stream of values output by a flow meter that continuously measures flow of the wastewater stream at least every 60 seconds,
wherein the first and second streams of values are analyzed independently, such that the controller is able to address (i) discharges in which variations in the clarity do not correspond to proportional variations in the flow and (ii) discharges in which variations in the flow do not correspond to proportional variations in the clarity, allowing the wastewater stream to be treated without underdosing or overdosing with the chemical additive; and

outputting a signal that causes a pump to inject the chemical additive into the wastewater stream in accordance with the varied rate, so as to dynamically address variations in the clarity and the flow of the wastewater stream.