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  1. Determination of microstickies in recycled whitewater by headspace gas chromatography

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    Author(s): X.-S. Chai; J.C. Samp; Q.F. Yang; H.N. Song; J.Y. Zhu
    Date: 2007
    Source: Progress in paper recycling. Vol. 16, no. 3 (May 2007): Pages 12-17.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (258 KB)

    Description

    This study proposed a novel headspace gas chromatographic (HS-GC) method for determination of adhesive contaminants (microstickies) in recycled whitewater, a fiber containing process stream, in the paper mill. It is based on the adsorption behavior of toluene (as a tracer) on the hydrophobic surface of microstickies, which affects the apparent vapor-liquid equilibration partitioning of toluene. It was found that the equilibrium concentration of toluene in the vapor phase is inversely proportional to the apparent effective surface area of microstickies that remain in the corresponding solution. Thus, the amount of microsticky materials in the recycled whitewater can be quantified by HS-GC via indirect measurement of the toluene content in the vapor phase of the sample without any pretreatment. The presented method is simple, rapid and automated.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Chai, X.-S.; Samp, J.C.; Yang, Q.F.; Song, H.N.; Zhu, J.Y. 2007. Determination of microstickies in recycled whitewater by headspace gas chromatography. Progress in paper recycling. Vol. 16, no. 3 (May 2007): Pages 12-17.

    Keywords

    Toluene, adsorption, chromatographic analysis, waste paper, recycling, pulping, papermaking, adhesives, gas charomatography, contamination, water reuse, stickies, microstickies, pulp and paper processes, vapor phase, headspace

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