Method and system to monitor ph values in water
Abstract
Abstract A METHOD AND SYSTEM FOR MONITORING THE PH VALUE IN A CONTINUOUSLY FLOWING LIQUID SAMPLE. THE METHOD COMPRISING SPLITTING A CONTINUOUSLY FLOWING SAMPLE STREAM INTO TWO STREAMS, PASSING ONE STREAM THROUGH A CATION EXCHANGE RESIN COLUMN, AND PASSING THE OTHER STREAM THROUGH AN ANION EXCHANGE RESIN COLUMN, MEASURING THE SPECIFIC ELECTRICAL CONDUCTIVITY OF THE CATION EXCHANGE RESIN COLUMN EFFLUENT, MEASURING THE SPECIFIC ELECTRICAL CONDUCTIVITY OF THE ANION EXCHANGE RESIN COLUMN EFFLUENT, AND OBTAINING THE PH VALUE OF THE SAMPLE BY SOLVING THE EQUATION WHERE KCAT IS THE SPECIFIC CONDUCTIVITY IN OHMS-1 CM.2 OF THE CATION EXCHANGE RESIN EFFLUENT, AND KAN IS THE SPECIFIC CONDUCTIVITY IN OHMS-1 CM.2 OF THE ANION EXCHANGE RESIN EFFLUENT. THE SYSTEM COMPRISES A CONDUIT FOR CONDUCTING THE LIQUID SAMPLE, MEANS FOR SPLITTING THE SAMPLE INTO TWO STREAMS AND CONDUCTING ONE STREAM THROUGH A CATION EXCHANGE RESIN COLUMN AND FOR CONDUCTING THE OTHER STREAM THROUGH AN ANION EXCHANGE RESIN COLUMN, SPECIFIC DONDUCTIVITY CELLS FOR MEASURING THE SPECIFIC CONDUCTIVITY OF THE EFFLUENT FROM EACH EXCHANGE RESIN COLUMN AND ELECTRICAL MEANS FOR SOLVING THE EQUATION AND INDICATING THE PH VALUE OF THE LIQUID SAMPLE.
Inventors
- 👤 Svend B Dalgaard
Bibliographic Details
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