Benthal Solids Properties Influencing ASB Design and Operating Practices
Publication: Journal of Environmental Engineering
Volume 136, Issue 2
Abstract
Studies undertaken at two aerated stabilization basins (ASBs) treating industrial effluents showed that the benthal solids characteristics varied substantially with location in three dimensions. The top 15–30 cm layer of the deposited solids was found to be the most active biodegradation zone with relatively little activity in the deeper layers. Ammonia and phosphate were present in high concentrations throughout the benthal solids and thus are not believed to limit biological growth and its associated benthal solids degradation kinetics. The nutrient concentrations were particularly higher in the downstream cells than those in the upstream cells. Implementing a suitable strategy to recycle these nutrients could result in minimized discharge and cost savings when treating nutrient-deficient industrial wastewaters. Dewatering properties of the benthal solids also substantially varied from one cell of an ASB to another. The selection and dose optimization of the dewatering polymers should therefore be completed separately for individual cells (or major zones) within an ASB system. Insights provided in this paper could be instrumental in proposing remedies to enhance in situ degradation of benthal solids and to better design and operate ASBs treating industrial effluents.
Get full access to this article
View all available purchase options and get full access to this article.
References
APHA-AWWA-WEF. (1992). Standard methods for the examination of water and wastewater, 18th Ed., APHA-AWWA-WEF Publishing, Washington, D.C.
Archibald, F., Méthot, M., Young, F., and Paice, M. (2001). “A simple system to rapidly monitor activated sludge health and performance.” Water Res., 35(10), 2543–2553.
Brock, T. D., and Madigan, M. T. (1991). Biology of microorganisms, 6th Ed., Prentice-Hall, Englewood Cliffs, N.J.
Bryant, C. W. (1994). “The importance of the sludge zone in the design and diagnosis of aerated stabilization basins at pulp and paper facilities.” Proc., 1994 TAPPI Int. Environmental Conf., Tappi Press, Atlanta, 935–940.
Chen, F., and Cushion, M. (1994). “Use of an ATP bioluminescent assay to evaluate viability of Pneumocystis carinii from rats.” J. Clin. Microbiol., 32(11), 2791–2800.
Collins, M. R., Chowdhury, Z. K., and Bryant, C. W. (1985). “Benthal interactions in a Kraft Mill wastewater lagoon.” Proc., 40th Industrial Waste Conf., Purdue Univ., West Lafayette, Ind., 325–333.
Fair, G. M., Moore, E. W., and Thomas, H. A. J. (1941). “The natural purification of river muds and pollutional sediments.” Sewage Works J., 13, 270–307.
Grady, C. P. L., Daigger, G. T., and Lim, H. C. (1999). Biological wastewater treatment, 2nd Ed., Marcel Dekker, New York.
Hilleke, J. B. (1982). “Sludge bed impacts on aerated stabilization basin performance.” Proc., 1982 TAPPI Environmental Conf., Tappi Press, Atlanta, 237–242.
Lardieri, N. J. (1954). “The aerobic and benthal oxygen demand of paper-mill waste deposits.” Tappi J., 37, 705–708.
Leighton, L., and Sackellares, R. (1988). “Sludge accumulation rate determination in aerated stabilization basins.” Proc., 1988 AIChE Forest Products Division Sessions. Tappi Press, Atlanta, 161–179.
Mahmood, T. (2008). “Insights into the enhancement of the ASB Benthal solids digestion rate.” Water Res., 42(10–11), 2411–2420.
Mahmood, T., and Paice, M. (2006). “Aerated stabilization basin design and operating practices in the Canadian pulp and paper industry.” J. Environ. Eng. Sci., 5, 383–395.
Metcalf and Eddy Inc. (2003). Wastewater engineering—Treatment and reuse, 4th Ed., McGraw-Hill, New York.
Oliveira-Esquerre, K. P., Seborg, D. E., Mori, M., and Bruns, R. E. (2005). “Application of steady-state and dynamic modeling for the prediction of the BOD of an aerated lagoon at a pulp and paper mill. Part II: Nonlinear approaches.” Chem. Eng. J., 105(1–2), 61–69.
Oswald, W. J. (1968). “Advances in anaerobic and pond system design.” Proc., Adv. Water Quality Improvement, Water Quality Symp. No. 1, University of Texas Press, Austin, Tex.
PAPTAC. (2003). “Solvent extractives in wood and pulp.” Pulp and paper technical association of Canada’s standard test methods, methods G.13 and G.20, Paptac, Montreal.
Parkin, G. F., and Owen, W. F. (1986). “Fundamentals of anaerobic digestion of wastewater sludges.” J. Environ. Eng., 112(5), 867–920.
Pohland, F. G. (1992). “Anaerobic treatment: Fundamental concepts, applications, and new horizons.” Design of anaerobic processes for the treatment of industrial and municipal wastewaters, J. F. Malina and F. G. Pohland, eds., Technomics, Lancaster, Pa., 1–40.
Schneiter, R. W., Middlebrooks, E. J., Sletten, R. S., and Reed, S. C. (1993). “Sludges from cold regions lagoons.” Water Environ. Res., 65(2), 146–155.
Speece, R. E. (1996). Anaerobic biotechnology for industrial wastewaters, Archae Press, Nashville, Tenn.
Wilson, S. A., Sorensen, T., and Rahe, T. (1987). “Utilization of ASB solids for reclamation of final landfill cover and amendment of forest soils.” Proc., 1987 TAPPI Environmental Conf., Tappi Press, Atlanta, 283–287.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 136 • Issue 2 • February 2010
Pages: 220 - 226
Copyright
© 2010 ASCE.
History
Received: Jul 15, 2009
Accepted: Aug 18, 2009
Published online: Aug 20, 2009
Published in print: Feb 2010
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.