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Upgrading of a wastewater treatment plant with a hybrid moving bed biofilm reactor (MBBR)

1 Department of Industrial Engineering, University of Padova, via Marzolo 9-35127 Padova, Italy;
2 Polesine Acque SpA, via B. Tisi da Garofolo 11-45100 Rovigo, Italy

Special Issues: Leading Edge Technologies in Wastewater Treatment

The wastewater treatment plant of Porto Tolle (RO, Italy) was originally projected for 2200 person equivalent (p.e.) and it was made of a pumping station, an activated sludge oxidation tank (395 m3), a settler (315 m3), and two sludge drying beds. Other units were not yet in use in 2008: a fine screen, a sand and grit removal unit, a new settler (570 m3), a disinfection tank and a sludge thickener. Effective hydraulic load was 245% higher, organic load was 46% lower and nitrogen load was 39% higher than project values. Moreover, higher pollutant loads and more strict emission limits for nitrogen were expected. So the plant was upgraded: the old settler was divided into a sector of 180 m3 that was converted into a predenitrification tank, and a sector of 100 m3 that was converted into a hybrid MBBR tank filled with 50% AnoxKaldnesTM K3 carriers; the new settler was connected to the hybrid MBBR, and the other units were started. Biofilm growth was observed two months after plant restarting, its concentration reached 1.1 gTS/m2 (0.26 kgTS/m3), while activated sludge concentration was 2.0-2.8 kgTSS/m3 in all the period of study. The upgraded plant treats 1587 m3/d wastewater with 57 kgCOD/d, 23 kgBOD/d and 13.3 kgN/d, and has a significant residual capacity; the effluent respects all emission limits.
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Keywords hybrid moving bed; nitrogen; biofilm; activated sludge; wastewater treatment; upgrading

Citation: Luigi Falletti, Lino Conte, Andrea Maestri. Upgrading of a wastewater treatment plant with a hybrid moving bed biofilm reactor (MBBR). AIMS Environmental Science, 2014, 1(2): 45-52. doi: 10.3934/environsci.2014.2.45

References

  • 1. Pastorelli G, Processi a biomassa adesa a letto mobile. Sviluppi nelle tecniche di depurazione delle acque reflue (Moving bed biofilm processes, in "Development in wastewater treatment techniques"); 2000. 52nd Sanitary-Environmental Engineering Course proceedings, Milan.
  • 2. Ødegaard H, Rusten B, Siljudalen JG (1999) The development of the moving bed biofilm process―from idea to commercial product. Eur Water Manage 2: 6-43.
  • 3. Helness H, Ødegaard H (2001) Biological phosphorus and nitrogen removal in a sequenching batch moving bed biofilm reactor. Water Sci Technol 43: 233-240.
  • 4. Ødegaard H, Rusten B, Westrum T (1994) A new moving bed biofilm reactor―Application and results. Water Sci Technol 28: 157-165.    
  • 5. Ødegaard H, Gisvold B, Strickland J (2000) The influence of carrier size and shape in the moving bed biofilm process. Water Sci Technol 41: 383-391.
  • 6. Rusten B, Hem L, Ødegaard H (1995) Nitrification of municipal wastewater in moving-bed biofilm reactors. Water Environ Res 67: 75-86    
  • 7. Ødegaard H, Rusten B (1993) Norwegian experiences with nitrogen removal in a moving bed biofilm reactor. Documentation of 9: 205-221.
  • 8. Salvetti R, Azzelino A, Canziani R, et al. Effects of temperature on tertiary nitrification in moving-bed biofilm reactors. Water Res 40: 2981-2993.
  • 9. Hem LJ, Rusten B, Ødegaard H (1994) Nitrification in a moving bed biofilm reactor. Water Res 28: 1425-1433.    
  • 10. Rusten B, Hem LJ, Ødegaard H (1995) Nitrogen removal from dilute wastewater in cold climate using moving-bed biofilm reactors. Water Environ Res 67: 65-74.    
  • 11. Rusten B, Siljudalen JG, Bungun S (1995) Moving bed biofilm reactors for nitrogen removal: from initial pilot testing to start-up of the Lillehammer WWTP. WEFTEC Proceedings 95: 21-25.
  • 12. Bonomo L, Pastrorelli G, Quinto E, et al. (2000) Tertiary nitrification in pure oxygen moving bed biofilm reactors. Water Sci Technol 41: 361-378.
  • 13. Di Trapani D, Mannina G, Torregrossa M, et al. (2008) Hybrid moving bed biofilm reactors: a pilot plant experiment. Water Sci Technol 57: 1539-1545.    
  • 14. Di Trapani D, Mannina G, Torregrossa M, et al. (2010) Comparison between hybrid moving bed biofilm reactor and activated sludge system: a pilot plant experiment. Water Sci Technol 61: 891-902.    
  • 15. Di Trapani D, Christensson M, Ødegaard H (2011) Hybrid activated sludge/biofilm process for the treatment of municipal wastewater in a cold climate region: a case study. Water Sci Technol 63: 1121-1129.    
  • 16. Christensson M, Welander T (2004) Treatment of municipal wastewater in a hybrid process using a new suspended carrier with large surface area. Water Sci Technol 49: 207-214.
  • 17. Josslin B, Johnson CH, Haegh M. Increasing BNR capacity in activated sludge systems by use of the HYBASTM process―Example from a full scale installation at Broomfield BWRF in Colorado; 2006. WEFTEC Annual Conference & Exposition, Dallas, USA.
  • 18. Rutt K, Seda J, Johnson CH (2006) Two year case study of integrated fixed film activated sludge (IFAS) at Broomfield, CO WWTP. Proceedings of the water environment federation 13: 225-239.
  • 19. Falletti L, Conte L (2007) Upgrading of activated sludge wastewater treatment plants with hybrid moving-bed biofilm reactors. Ind Eng Chem Res 46: 6656-6660.    
  • 20. Santamaria A, Zalakain G, Hernández M, et al. (2011) Remodelación del tratamiento biológico de la EDAR Gavà-Viladecans mediante el proceso híbrido Hybas (Modification of biological treatment of EDAR Gavà-Viladecans with hybrid process Hybas, in Spanish language). Agua 327: 58-65.

 

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Copyright Info: 2014, Luigi Falletti, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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