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Reduction of sampling time in tracer studies

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An approach of evaluation of dispersion number has been suggested. Unlike the existing method, which is based on fixed-point continuous monitoring until the tracer concentration has been reduced to negligible concentration, the new approach assumes that sampling takes place at various equidistant points along the pond or channel simultaneously or at variable times. The new approach was illustrated with laboratory data and gave results 0.9–3.3 higher than those obtained with the conventional Levenspiel and Smith fixed-point continuous-monitoring method. Its advantages over the existing methods, which include savings in time, economy, convenience, and flexibility, were also discussed. The Levenspiel and Smith method was employed in analysis and comparison.
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Keywords: DISPERSION; MODEL; SAMPLING TIME; TRACERS

Document Type: Research Article

Publication date: 1997-05-01

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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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