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Variables of activated-sludge bulking under different conditions of bioflocculation
AbstractVariables of activated-sludge bulking under different conditions of bioflocculation were studied through a set of laboratory experiments using a shake-flask technique. The study was based on the relationships between physical properties of developed bioflocs and some environmental parameters. The physical properties included floc sizes and numbers, solution turbidity and the ratio of unsettled floc numbers (ufn) to total floc numbers (tfn) and settled floc volumes (sfv) to total floc volumes (tfv). The environmental parameters were different sources of wastewater, and use of filamentous, floc-forming and natural bacteria, mixed at different speeds. The results indicated that various sources of wastewater mixed at different speeds, in the presence of various categories of bacteria allowed the development of flocs possessing a wide range of physical properties. The importance of the ratios of ufn to tfn and sfv to tfv, besides floc sizes, number and solution turbidity, in the study of activated-sludge bulking was also discussed.
Variables of activated-sludge bulking under different conditions of bioflocculation
AbstractVariables of activated-sludge bulking under different conditions of bioflocculation were studied through a set of laboratory experiments using a shake-flask technique. The study was based on the relationships between physical properties of developed bioflocs and some environmental parameters. The physical properties included floc sizes and numbers, solution turbidity and the ratio of unsettled floc numbers (ufn) to total floc numbers (tfn) and settled floc volumes (sfv) to total floc volumes (tfv). The environmental parameters were different sources of wastewater, and use of filamentous, floc-forming and natural bacteria, mixed at different speeds. The results indicated that various sources of wastewater mixed at different speeds, in the presence of various categories of bacteria allowed the development of flocs possessing a wide range of physical properties. The importance of the ratios of ufn to tfn and sfv to tfv, besides floc sizes, number and solution turbidity, in the study of activated-sludge bulking was also discussed.
Variables of activated-sludge bulking under different conditions of bioflocculation
Al-Shahwani, M.F. (author) / Al-Rawi, E.H. (author)
Biological Wastes ; 25 ; 99-108
1988-01-20
10 pages
Article (Journal)
Electronic Resource
English
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