DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Optimization of water-air regeneration of aerotank-bioreactor synthetic loading

Vestnik MGSU 7/2014
  • Kul'kov Viktor Nikolaevich - Irkutsk State Technical University (IrGTU) Doctor of Technical Sciences, Professor, Department of Utility Lines and Life Support Systems, Irkutsk State Technical University (IrGTU), 83 Lermontova str., Irkutsk, 664074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solopanov Eugeniy Yur'evich - Irkutsk State Technical University (IrGTU) Candidate of Technical Sciences, Associate Professor, Department of Information Technologies, Irkutsk State Technical University (IrGTU), 83 Lermontova str., Irkutsk, 664074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Zelenin Aleksandr Matveevich - Irkutsk State Technical University (IrGTU) Postgraduate Student, Department of Utility Lines and Life Support Systems, Irkutsk State Technical University (IrGTU), 83 Lermontova str., Irkutsk, 664074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 41-50

The article deals with water-air regeneration of immobilized sludge on aerotank-bioreactor brush loading. The researches of inert loading regeneration with water-air method were performed on a physical model of bioreactor representing a planar vertical cross section of the aeration tank volume-bioreactor. Water-air regeneration torch was provided through the ejection nozzles located under brush loading. The dependence of air flow inducing from the nozzles of the specific water flow delivered by the pump in the water circuit with a fixed number of nozzles from one to six is extreme. Increasing the number of nozzles led to an increase in specific water consumption and, accordingly, to an increase in water-air regeneration torch inducing. The authors obtained mathematical equations describing their interdependence with high degree of accuracy. They also determined the efficiency of inert loading regeneration depending on the number of working nozzles. Changing the number of nozzles with up to six units lead to increase of regeneration efficiency from 80 to 95 %. The resulting dependence allows us to calculate the number of nozzles on the projected volume of the aeration tank-bioreactor from the following relationship: one nozzle on the volume of water consumption equal to 0.04 m
3 with a fairly high efficiency air-water regeneration reaching 85 %.

DOI: 10.22227/1997-0935.2014.7.41-50

References
  1. Zhmur N.S. Tekhnologicheskie I biokhimicheskie protsessy ochistki stochnykh vod na sooruzheniyakh s aerotenkami [Technological and Biochemical Processes of Waste Water Treatment on Treatment Plants with Aerotanks]. Moscow, 2003, 512 p.
  2. Kulikov N.I, Raimanov A.Y., Omel'chenko N.P., Chernyshov V.N. Teoreticheskie osnovy ochistki vody [Theoretical Foundations of Water Cleaning]. Makeevka, 2009, 298 p.
  3. Hentse M., Armoes P., La-Cour-Jansen J., Arvan E. Ochistka stochnykh vod [Sewage Treatment]. Moscow, 2004, 480 p.
  4. Chua H.C., Arnot T.C., Howell J.A. Controlling Fouling in Membrane Bioreactors Operated with a Variable Throughput. Desalination. 2002, vol. 149, no. 1—3, pð. 225—229. DOI: http://dx.doi.org/10.1016/S0011-9164(02)00764-6.
  5. Springer Andrew. Loading for the Immobilization of Microorganisms in the Biological Cleaning of Sewage Systems. Water and Waste Treat. 2007, vol. 50, no. 2, pð. 22—23.
  6. Qiyong Yang, Jihua Chen, Feng Zhang. Kontrol' zagryazneniya membrany v pogruzhnykh membrannykh bioreaktorakh s poristoy plavayushchey zagruzkoy [Membrane Fouling Control in a Submerged Membrane Bioreactor with Porous, Flexible Suspended Carriers]. Voda i ekologiya [Water and Ecology]. 2008, no. 1, pp. 33—47.
  7. Litti Yu.V., Nekrasov V.K., Kulikov N.I. Obnaruzhenie anaerobnykh protsessov i mikroorganizmov v immobilizovannom aktivnom ile stantsii ochistki stochnykh vod s intensivnoy aeratsiey [Detection of Anaerobic Processes and Microorganisms in the Immobilized Activated Sludge Wastewater Treatment Plants with Intensive Aeration]. Mikrobiologiya [Microbiology]. 2013, no. 6, pp. 25—28.
  8. Globa L.I., Gvozdyak P.I., Zagornaya N.B., Nikovskaya G.N., Fedorik S.V., Yablonskaya L.I. Ochistka prirodnoy vody gidrobiontami, zakreplennymi na voloknistykh nasadkakh [Cleaning of Natural Water Hydrobionts Nozzles Attached to the Fibrous]. Khimiya i tekhnologiya vody [Chemistry and Technology of Water]. 1992, vol. 14, no. 1, pp. 63—67.
  9. Udo Wiesmann, In Su Choi, Eva-Maria Dombrowski. Fundamentals of Biological Wastewater Treatment. Weinheim, 2007, 255 p.
  10. Omel'chenko N.P., Kovalenko L.I. Voloknistye nasadki dlya system ochistki vody [Fiber Nozzles for Water Cleaning Systems]. Problemy ekologii [Environmental Problems]. Donetsk, 2011, no. 1—2, pp. 12—17.
  11. Mahro Bernd. Denitrification Processes in Wastewater Treatment. KA — Abwasser, Abfall. 2006, 53, no. 9, pp. 916—919.
  12. Osadchiy V.F., Yaremenko L.V. Tsirkulyatsionnyy aerotenk s inertnym napolnitelem [Circulation Aerotank With an Inert Filler]. Sbornik dokladov Mezhdunarodnogo kongressa «EKVATEK-2006», Moskva, 30 maya—2 iyunya [Collection of Reports of the International Congress "EKVATEK -2006", Moscow, May 30 — June 2]. Moscow, 2006, vol. 2, pp. 754—755.
  13. Slovtsov A.A. Sovershenstvovanie protsessov biologicheskoy ochistki stochnykh vod s pomoshch’yu prikreplennykh biotsenozov [Improving Processes of Biological Cleaning of Wastewaters Using Attached Biocenosis]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. Moscow, 2008, no. 3, ðp. 80—85.
  14. Kulikov N.I, Kulikova Å.N., Fåsånêî L.N., Êràsàvêin G.Â. Patent 229858 RU, MÊP6Ñ02 F1/24, Â01 D1/14. Flîtîustànîvêà dlyia îchistki proizvodstvennykh stochnykh vod [Flotation Plant for Industrial Wastewater]. No. 2005122802/15. App. 18.07.05. Publ. 27.05.07. Priority 18.07.05.
  15. Kul'kov V.N., Solopanov E.Yu., Zelenin A.M. Vliyanie gazovoy sostavlyayushchey na effektivnost' vodo-vozdushnoy regeneratsii ershovoy zagruzki v bioreaktore [Gas Component Influence on Water-Air Regeneration of Brush Loading in Bioreactor]. Vestnik IrGTU [Proceedings of Irkutsk State Technological University]. Irkutsk, 2012, no. 11, ðp. 112—118.
  16. Sosna V.M., Zelenin A.M., Solopanov E.Y. Regeneratsiya immobilizovannogo ila nakhodyashchegosya na ershovoy zagruzke v aerotank [Regeneration of Immobilized Sludge Located on Brush Loading in Aerotank]. Sbornik trudov 15 Vserossiyskoy nauchno-prakticheskoy konferentsii Neryungri [Materials of the 15th All-Russian Research-to-Practice Conference in Nerungri]. Nerungri, 2014, ðp. 53—56.

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Engineering protection of pipelinesfrom erosion processes

Vestnik MGSU 7/2013
  • Kul’kov Viktor Nikolaevich - Irkutsk State Technical University (IrGTU) Doctor of Technical Sciences, Professor, Department of Utility Lines and Life Support Systems; +7(3952) 405-142, Irkutsk State Technical University (IrGTU), 83 Lermontova st., Irkutsk, 664074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solopanov Evgeniy Yur’evich - Irkutsk State Technical University (IrGTU) Candidate of Technical Sciences, Associate Professor, Department of Information Technologies; +7 (3952) 405-279, Irkutsk State Technical University (IrGTU), 83 Lermontova st., Irkutsk, 664074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sosna Viktor Mikhaylovich - Irkutsk State Technical University (IrGTU) postgraduate student, Department of Utility Lines and Life Support Systems; +7 (3952) 405-142., Irkutsk State Technical University (IrGTU), 83 Lermontova st., Irkutsk, 664074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 131-139

The article presents the findings of the experimental studies of mechanical regeneration of the immobilized load using an electromechanical unbalanced vibrator. The sedimentation of the sludge on the synthetic load inside the physical model of a vertical bioreactor is studied. Mechanical regeneration of the immobilized sludge on the brush is proposed. The nature of dependence between the concentration of free-floating sludge and the deposition time following the mechanical regeneration is identified. The kinetics of the sludge deposition, the dose and intensity of aeration is studied, if the electric vibrator is used for the mechanical regeneration of the brush load. Thus, the application of the plane model of a bioreactor helped to determine that, if the water-sludge mixture has a small concentration of the free-floating sludge, the sedimentation is about 10 % of the total dose 30 seconds after the mechanical regeneration of the brush load. The effectiveness of the mechanical regeneration performed with the help of an electromechanical unbalanced vibrator was approximately 84–90 %. The application of the bioreactor having a synthetic brush load mechanism increases the concentration of the coagulated activated sludge.

DOI: 10.22227/1997-0935.2013.7.131-139

References
  1. Zhmur N.S. Tekhnologicheskie i biokhimicheskie protsessy ochistki stochnykh vod na sooruzheniyakh s aerotenkami [Technological and Biochemical Processes of Wastewater Treatment at Water Treatment Plants Having Aeration Tanks]. Moscow, ARVAROS, 2003, 512 p.
  2. Wiesmann U., Choi I.S., Dombrowski E.-M. Fundamentals of Biological Wastewater Treatment. Weinheim, 2007, 255 p.
  3. Springer A. Loading for the Immobilization of Microorganisms in the Biological Cleaning of Sewage Systems. Water and Waste Treat. 2007, 50, no. 2, pð. 22—23.
  4. Mahro Bernd. Denitrification Processes in Wastewater Treatment. KA – Abwasser, Abfall. 2006, 53, no. 9, pp. 916—919.
  5. Globa L.I., Gvozdyak P.I., Zagornaya N.B., Nikovskaya G.N., Fedorik S.M., Yablonskaya L.I. Ochistka prirodnoy vody gidrobiontami, zakreplennymi na voloknistykh nasadkakh [Using Hydrobionts Attached to Fibrous Nozzles to Treat Natural Water]. Khimiya i tekhnologiya vody [Chemistry and Technology of Water]. 1992, vol. 14, no. 1, pp. 63—67.
  6. Khorunzhiy V.P. Kinetika voskhodyashchego fil'trovaniya vody na ustanovkakh s voloknistopolistirol'nym zavantazhennyam [Kinetics of upward water filtering with fiber polystyrene loading]. Vestnik inzhenernoy akademii Ukrainy. 2004, no. 2, pp. 82—87.
  7. Omel’chenko N.P., Kovalenko L.I. Voloknistye nasadki dlya sistem ochistki vody [Fibrous Nozzles for Water Treatment Systems]. Problemy ekologii [Environmental Problems]. Donetsk, 2011, no. 1—2, pp. 12—17.
  8. Kulikov N.I., Raymanov A.Ya., Omel’chenko N.P., Chernyshov V.N. Teoreticheskie osnovy ochistki vody [Theoretical Fundamentals of Water Treatment]. Makeevka, DGASU, 2009, 298 p.
  9. Kul’kov V.N., Solopanov E.Yu. Poverkhnost’ kontakta faz v aerobnoy ochistke stochnykh vod [Phase-to-phase Contact Surface in the Aerobic Treatment of Wastewater]. Irkutsk, IrGTU Publ., 2009, 144 p.
  10. Kul’kov V.N., Sosna V.M., Zelenin A.M. Opredelenie kontsentratsii svobodno plavayushchego ila v bioreaktore [Determination of Concentration of Free-floating Sludge in the Bioreactor]. Voda Magazine [Water Magazine Journal]. Moscow, 2012, no. 3, pp. 44—46.

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