REMOVAL OF FINE PARTICLES FROM WASTEWATER USING INDUCED AIR FLOTATION
REMOVAL OF FINE PARTICLES FROM WASTEWATER USING INDUCED AIR FLOTATION
The suspended solids must be removed from effluent prior to re-using or discharging into environment. In order to remove the fine particles, large basins are needed to provide sufficient retention time due to the extreme low settling velocities, therefore flocculants or coagulants have to be added to increase the settling velocity and efficiency of settling basins. For removing suspended particles from wastewaters, flotation and floc-flotation methods are getting attention recently due to their advantages over the other methods. In this study, IAF process (Induced Air Flotation -Jameson Flotation) was applied to synthetic wastewater containing fine quartz particles. Preliminary results of flotation experiments which were carried out by Jameson flotation cell were given. Effect of particle size and solid/liquid ratio on the turbidity removal efficiency was researched. The synthetic wastewater samples containing suspension of very fine quartz particles was pre-treated with/without anionic flocculant addition and then introduced to the Jameson flotation cell with cationic type collector (amine). Reasonable turbidity removal efficiencies were obtained for the particles larger than 20 µm, however the results were not good as for the -20 µm particles. The experimental works have shown that over 90 % turbidity removal efficiency of -20 µm particles was possible at the lowest solid/liquid ratio (0.06 %) tested when floc-flotation studies was applied by Jameson cell
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- Bratby, J. (2006). Coagulation and Flocculation in Water and Wastewater Treatment. Published by IWA Publishing, London.
- Colic, M., Morse, W., and Miller, J.D. (2007). The development and application of centrifugal flotation systems in wastewater treatment, Int. J. Environment and Pollution, Vol. 30, No: 2, 296-312.
- Çınar, M., Şahbaz, O., Çınar, F., Kelebek, Ş. and Ötekaya, B. (2007). Effect of Jameson Cell Operating Variables and Design Characteristics on Quartz-Dodecylamine Flotation System, Minerals Engineering, 20/15, pp. 1391-1396.
- Evans, G.M., Atkinson, B.W. and Jameson, G.J. (1995). The Jameson Cell, Flotation Science and Engineering, Edited by K.A. Matis, pp 331-363. Gregory, J. (2005). Particles in water: Properties and Process,University College London.
- Jameson, G.J. (1988). A new concept in flotation column design, In: Sastry, K.V.S. (Ed.), Proceedings of the ‘‘Column Flotation 1988’’, Annual meeting, Society of Mining Engineering, Phoenix, Arizona, January 25–28, 1988.
- Jameson, G.J. (1999). Hydrophobicity and Floc Density in Induced-air Flotation for Water Treatment, Colloids Surfaces A: Physicochem. Eng. Asp, 151, pp 269-281.
- Kotze, K., Conway, C., Yan, Y., Janata, W. and Somers, B. (2001). Removal of algae and phosphate from effluent emanating from the Waihi wastewater treatment facility using an innovative new induced air flotation system, Proceeding of 2001 Joint Conference of SCENZ/FEANZ/EMG, Auckland.
- Matis, K.A. and Zouboulis, A.I. (1995). An overview of the process. 1995. Flotation Science and Engineering, Edited by K.A. Matis, pp 1-45. Odegaard, H. (2001). The Use of Dissolved Air Flotation in Municipal Wastewater Treathment, Water Science and Technology, 43 (8), pp 75-81.
- Orr, D. J. (2000). Implementation and Optimisation of a Suspended Solids Removal Solids Removal Unit, Individual Inquiry, The University of Queensland, Submitted to The Department of Chemical Enginnering.
- Rosa J.J. and Rubio J. (2005). The FF (flocculation–flotation) process, Minerals Engineering. 18, pp 701- 707.
- Rubio, J., Souzo M.L. and Smith, R.W. (2002). Overview of Flotation as a Wastewater Treatment Technique, Mineral Engineering, V 15, pp 139-155.
- Russell D. L. (2006). Practical wastewater treatment, Global Environmental Operations, Inc. Lilburn, Georgia.
- Şener, S. (2007). Removal of suspended solid materials from the wastewater of natural dimension Stone cutting plants by flocculation, Journal of Science and Technology, 1 (2), pp 234-244.
- Taşdemir, A., Taşdemir, T. and Öteyaka, B. (2007). The effect of Particle Size and Some Operating Parameters in the Separation Tank and the Downcomer on the Jameson Cell Recovery, Minerals Engineering, 20/15, pp. 1331-1336.
- Taşdemir, T. and Erdem, V. (2010). Flokülasyon yöntemi ile atıksudan askıda tanelerin giderimi, Eskişehir Osmangazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt/Vol:XXIII, Sayı no:1, pp:109-121.
- Tripathy, T. and Ranjan De, B. (2006). Flocculation : A New Way to Treat the Waste Water, Journal of Physical Sciences, Vol. 10, pp 93 – 127.
- Viera, A:M. and Peres, A.E.C. (2007). Effect of amine type, pH and size range in the flotation of quartz, Minerals Engineering,20, pp 1008-1013.
- Yan, Y.D. and Jameson, G.J. (2004). Application of the Jameson Cell technology for algae and phosphorus removal from maturation ponds, Int. J. Miner. Process., Vol 73, pp 23-28.
- ISSN: 2146-7390
- Başlangıç: 2011
- Yayıncı: The association of science, education and technology
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