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Parameters influencing oxygen uptake at clarifier weirs

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Abstract:

Oxygen uptake at clarifier weirs was investigated for both clean water and primary wastewater. A pilot-scale model with cross-sectional geometry similar to clarifier weirs was constructed to carry out the study. The drop height, type of flow regime over the weir, hydraulic loading, and weir shape were identified as important parameters influencing mass transfer. Empirical correlations predicting oxygen uptake were developed for different weir configurations. A correlation using the α-factor was developed to predict the oxygen transfer in primary wastewater using clean water. These correlations are a first step in estimating volatile organic compound emissions for wastewater flows over clarifiers at wastewater treatment plants.

Keywords: CLARIFIER; EMISSIONS; OXYGEN; VOLATILE ORGANIC COMPOUNDS; WEIRS

Document Type: Research Article

DOI: https://doi.org/10.2175/106143096X128018

Publication date: 1996-09-01

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  • Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.

    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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