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Abstrakty
The investigations were made in a loop bioreactor, where biomass was immobilized in the ceramic carrier. The influence of the internal circulation rate on the biodegradation efficiency of brewery wastes by immobilized biomass and on production of surplus sludge was examined. The rates of the internal circulation were 12, 38, 50 dm3·h-1. The experiments were performed at constant loading rate of the carrier of 17.9 g·dm-3·d-1 and hydraulic retention time of 3 h. Increasing in the internal circulation rate from 12 to 50 dm3·h-1 caused enhancement of the removal rate from 0.40 to 0.48 gCOD·dm-3·h-1 and limitation of surplus sludge productivity from 0.67 to 0.27 g·g-1 COD removed. The biodegradation rate of brewery wastes in a two-stage immobilized system was determined. The hydraulic retention time in this two-stage immobilized system was 6 h, which was enough to get a COD below 150 mg·dm-3 in the effluent.
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Opis fizyczny
p.571-575,fig.
Twórcy
autor
- University of Warmia and Mazury in Olsztyn, Prawochenskiego 1, 10-957 Olsztyn, Poland
autor
autor
autor
Bibliografia
- 1. SUWA Y., SUZUKI T., TOYOHARA H., YAMAGISHI T. URUSHIGAWA Y. Single-stage, single-sludge nitrogen removal by an activated sludge process with cross-flow filtration. Water Research, 26, (9), 1149, 1992.
- 2. WPCF. Total suspended solids dried at 103-105°C. Standard Methods for the examination of water and wastewater, 16th edition. American Public Health Association, Washington DC, USA, 96-98, 1985.
- 3. STROHWALD N.K.H., ROSS W.R. Application of the ADUFr process to brewery effluent on a laboratory scale. Water Science and Technology, 25, (10), 95, 1992.
- 4. CASEY E., GLENNON B., HAMER G. Oxygen mass transfer characteristic in a membrane-aerated biofilm reactor. Biotechnology and Bioengineering, 62, (2), 183, 1999.
- 5. YAMAMOTO K., WIN K.M. Tannery wastewater treatment using a sequencing batch membrane reactor. Water Science and Technology, 23, 1639, 1991.
- 6. GANDER M.A., JEFFERSON B, JUDD S.J. Membrane bioreactors for use in small wastewater treatment plants: membrane materials and effluent quality. Water Science and Technology, 41, (1), 205, 2000.
- 7. CANALES A., PAREILLEUX A, ROLS J.L., GOMA G, HUYARD A. Decreased sludge production strategy for domestic wastewater treatment. Water Science and Technology, 30, (8), 97, 1994.
- 8. CHEMCHAISRI C, YAMAMOTO K., VIGNESWARAN S. Household membrane bioreactor in domestic wastewater treatment. Water Science and Technology, 27, (1), 171, 1993.
- 9. STARS A.S., SOUTH J.B., SMITH N.A. Influence of malting microflora on malt quality. EBC Congress, Oslo, 103-110, 1993.
Typ dokumentu
Bibliografia
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