Method for pH control

Details Method for pH control Method for pH control

1989-05-19

1990-07-10

Hruskoci, Peter

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210 961, 210101, 210143, 364148, C02F 166

Patent

active

049405519

ABSTRACT:
A method for controlling pH of an effluent stream or batch process is provided in which multiple in-process reagent concentration and pH data pairs are used to characterize the titration curve of the influent stream or batch fluid. Reagent is added in two or more portions in either space or time to generate several resulting pH readings and to provide rapid, reliable, and locally valid titration characterization. The titration curve can then be used to determine the required reagent addition.

REFERENCES:
patent: 3899294 (1975-08-01), Magiros
patent: 4053743 (1977-10-01), Niemi
patent: 4670157 (1987-06-01), Nicksic

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