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Laboratory studies on the anaerobic biosorption process

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Biological solids have significant potential for sorption of soluble organic matter from wastewater streams. The anaerobic biosorption process uses the sorption capabilities of active biomass for the treatment of wastewater. Biosorption is a rapid process. Approximately 40% removal of organic matter was obtained in only 15 minutes after the substrate was brought into contact with the biomass. Anaerobic biomass was grown in 10-L source reactors operated at a constant temperature of 35°C. Biosorption experiments were performed with active bio-mass in 2-L batch reactors using synthetic milk as a substrate. The effects of mixing times, temperature, substrate concentration, biomass concentration, and granular biomass particle size were investigated. Temperature studies indicated increased uptake at higher temperature than at lower temperature. It was observed that wastes at temperatures as low as 7°C could be biosorbed without the application of external heat.

Higher removals were obtained with the small granular biomass than with the large granules. Increasing the biomass concentration resulted in an increase in the percentage removal of organic matter. The results were expressed in terms of adsorption isotherms.
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Keywords: ANAEROBIC TREATMENT; BIOSORPTION; GRANULAR BIOMASS; ISOTHERM; MIXING; TEMPERATURE

Document Type: Research Article

Publication date: 1995-11-01

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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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