High Speed Turbine Aerators with Air Feeding into Hollowed Shaft
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Abstract
This research aims to study and fabricate a high speed submerged turbine aerator in pilot scale. All aeration experiments were conducted in a glass square tank with dimension of 50×50×50 cm, tested water volume of 100 l, air flowrate of 15 l/min. Three types of turbine, namely, Flat Disc–6–Blade Turbine, 45° Pitch–4–Blade Turbine and 45° Flat Disc–6–Blade Turbine were studied with various rotor speeds in the range of 800 to 1200 rpm. Results showed that the 45° Flat Disc–6–Blade Turbine gave the maximum Standard Aeration Efficiency (SAED) of 1.334 kgO2/kW-h at 800 rpm of the rotor speed.
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Engineering Research Articles
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References
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[2] J. He, “A review of Chinese fish trade involving the development and limitations of food safety strategy,” Ocean & Coastal Management, vol. 116, pp.150–161, 2015.
[3] T. J. Pfeiffer, A. Osborn, and M. Davis, “Particle sieve analysis for determining solids removal efficiency of water treatment components in a recirculating aquaculture system,” Aquacultural Engineering, vol. 39, no. 1, pp. 24–29, 2008.
[4] J. Davidson, C. Good, F.T. Barrows, C. Welsh, P. BrettKenney, and S.T. Summerfelt, “Comparing the effects of feeding a grain-or a fish meal-based diet on water quality, waste production, and rainbow trout Oncorhynchus mykiss performance within low exchange water recirculating aquaculture systems,” Aquacultural Engineering, vol. 52, pp. 45–57, 2013.
[5] Good aquaculture practices for freshwater aquatic animal farm, Thai Agricultural Standard TAS 7417–2009, July 2012.
[6] Metcalf and Eddy, Wastewater Engineering: Treatment and Reuse, 4th ed., Singapore: McGraw Hill, 2004.
[7] Measurement of Oxygen Transfer in Clean Water, ASCE standard ANSI/ASCE 2–91, 1992.
[8] A. Petiraksakul and P. Worathanakul, Environmental Technology. Bangkok: KMUTNB Textbook Publishing Center, 2014.
[9] Technical Bulletin Environmental Dynamics Published: 6/2005 Energy Consumption and Typical Performance of Various Types of Aeration Systems (Online). Available: http://www.wastewater.com/ docs/default-source/tech-bulletins/127-energy-consumption-andtypical-performance-of-various-types-ofaeration-systemsx.pdf?sfvrsn=4, (31/8/2016).
[10] K. Rosselot and A. V. Naimpally. (2013, September). Environmental Engineering: Review for the Professional EngineeringExamination [Online]. Available: http://www.springer.com/la/book/ 9780387290720.
