Measurement of volatile acid concentration in anaerobic processes by least squares regression of overdetermined titration data

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A numerical procedure is presented which determines the volatile acid content of a sample using standard acid titration data. The procedure uses all available titration data instead of the customary single endpoint titration volume. In many cases volatile acid content can be resolved into acetic and propionic acid components. The procedure is verified using solutions of known concentrations. The procedure gives comparable results to the silicic acid chromatography separation technique.

Keywords: acid titration; alkalinity; anaerobic processes; numerical technique; volatile acids

Document Type: Research Article


Publication date: January 1, 1994

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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