1. C.A.L. Chenicharo, T.B. Ribeiro, G.B. Garcia, A. Lermontov, C.B. Pereira, C.J. Platzer, G.R.C. Possetti, M.A.L. Leites, R. Rosseto, Panorama do tratamento de esgoto sanitário nas regiões Sul, Sudeste e Centro-Oeste do Brasil: tecnologias mais empregadas (Overview of sewage treatment in the South, Southeast and Midwest regions of Brazil: most used technologies), Revista DAE, submitted, (In Portuguese).
  2. P.G.S Almeida, C.A.L. Chernicharo, C.L Souza, Development of compact UASB/TF systems for the treatment of domestic wastewater in small communities in Brazil, Water Sci. Technol., 59 (2009) 1431–1439.
  3. T. Okubo, T. Onodera, S. Uemura, T. Yamaguchi, A. Ohashi, H. Harada, On-site evaluation of the performance of a full-scale down-flow hanging sponge reactor as a post-treatment process of an up-flow anaerobic sludge blanket reactor for treating sewage in India, Bioresour. Technol., 194 (2015) 156–164.
  4. T. Onodera, K. Matsunaga, K. Kubota, R. Taniguchi, H. Harada, K. Syutsubo, T. Okubo, S. Uemura, N. Araki, M. Yamada, M. Yamauchi, T. Yamaguchi, Characterization of the retained sludge in a down-flow hanging sponge (DHS) reactor with emphasis on its low excess sludge production, Bioresour. Technol., 136 (2013) 169–175.
  5. T.B. Ribeiro, Sistema UASB/FBP submetido a hidrograma típico de vazão: avaliação do uso de meio suporte baseado em espuma de poliuretano e operação sem decantadores secundários (UASB/TF System Submitted to a Typical Hydrograph Flow: Assessment of Sponge-Based Media and Operation Without Secondary Settlers), MSc Thesis, Federal University of Minas Gerais, 2015 (In Portuguese).
  6. C.A.L. Chernicharo, J.B. Van Lier, A. Noyola, T. Bressani-Ribeiro, Anaerobic sewage treatment: state of the art, constraints and challenges, Rev. Environ. Sci. Biotechnol., 14 (2015) 649–679.
  7. B.Z.L. Ross, Escuma de reatores anaeróbios tratando esgotos domésticos em escala real: Produção, caracterização e proposição de parâmetros para seu gerenciamento (Scum from Full-Scale Anaerobic Reactors Treating Domestic Sewage: Production, Characterization and Parameters Proposition for Management), PhD Thesis, Federal University of Paraná, 2015 (In Portuguese).
  8. A.P. Rosa, L.C.S. Lobato, C.A.L. Chernicharo, D.C.B. Martins, F.L. Maciel, J.M. Borges, Improving performance and operational control of UASB reactors via proper sludge and scum discharge routines, Water Pract. Technol., 7 (2012) 1–11.
  9. C.L. Souza, C.A.L. Chernicharo, G.C.B. Melo, Methane and hydrogen sulfide emissions in UASB reactors treating domestic wastewater, Water Sci. Technol., 65 (2012) 1229–1237.
  10. C.A.L. Chernicharo, P.G.S. Almeida, L.C.S. Lobato, T.C. Couto, J.M. Borges, Experience with the design and start up of two full-scale UASB plants in Brazil: enhancements and drawbacks, Water Sci. Technol., 60 (2009) 507–515.
  11. E.M.F. Brandt, F.V. Duarte, J.P.R. Vieira, V.M. Melo, C.L. Souza, J.C. Araújo, C.A.L. Chernicharo, The use of novel packing material for improving methane oxidation in biofilters, J. Environ. Manage., 182 (2016) 412–420.
  12. R.M. Glória, T.M. Motta, P.V.O. Silva, P. Costa, E.M.F. Brandt, C.L. Souza, C.A.L. Chernicharo, Stripping and dissipation techniques for the removal of dissolved gases from anaerobic effluents, Braz. J. Chem. Eng., 33 (2016) 713–721.
  13. APHA, Standard Methods for the Examination of Water and Wastewater, 22nd ed., American Public Health Association, Washington, D.C., USA, 2012, 1496 p.
  14. S.C. Oliveira, M. von Sperling, Reliability analysis of wastewater treatment plants, Water Res., 42 (2008) 1182–1194.
  15. M. Pawłowska, A. Rożej, W. Stępniewski, The effect of bed properties on methane removal in an aerated biofilter – model studies, Waste Manage., 31 (2011) 903–913.
  16. R.W. Melse, A.W. van der Werf, Biofiltration for mitigation of methane emission from animal husbandry, Environ. Sci. Technol., 39 (2005) 5460–5468.
  17. C.L. Souza, C.A.L. Chernicharo, S.F. Aquino, Quantification of dissolved methane in UASB reactors treating domestic wastewater under different operating conditions, Water Sci. Technol., 64 (2011) 2259–2264.
  18. J.M. Estrada, N.J.R. Kraakman, R. Lebrero, R. Muñoz, A sensitivity analysis of process design parameters, commodity prices and robustness on the economics of odour abatement technologies, Biotechnol. Adv., 30 (2012) 1354–1363.
  19. C. Alfonsín, R. Lebrero, J.M. Estrada, R. Muñoz, N.J.R. Kraakman, G. Feijoo, M.T. Moreira. Selection of odour removal technologies in wastewater treatment plants: a guideline based on Life Cycle Assessment, J. Environ. Manage., 149 (2015) 77–84.
  20. S. Gomez-Cuervo, J. Hernandez, F. Omil, Identifying the limitations of conventional biofiltration of diffuse methane emissions at long-term operation, Environ. Technol., 37 (2016) 1947–1958.
  21. C. Kennes, M.C. Veiga, Bioreactors for Waste Gas Treatment, Kluwer Academic Publishers, Dordrecht, 2001.
  22. P. Oyarzún, F. Arancibia, C. Canales, G.E. Aroca, Biofiltration of high concentration of hydrogen sulphide using Thiobacillus thioparus, Process Biochem., 39 (2003) 165–170.
  23. WEF, Control of Odors and Emissions from Wastewater Treatment Plants, Manual of Practice 25, 1st ed., Water Environment Federation, Alexandria, 2004.
  24. E.Y. Lee, N.Y. Lee, K.-S. Cho, H.W. Ryu, Removal of hydrogen sulfide by sulfate-resistant Acidithiobacillus thiooxidans AZ11, J. Biosci. Bioeng., 101 (2006) 309–314.
  25. P.G.S. Almeida, A.K. Marcus, B.E. Rittmann, C.A.L. Chernicharo, Performance of plastic- and sponge-based trickling filters treating effluents from an UASB reactor, Water Sci. Technol., 67 (2013) 1034–1042.
  26. WHO, Guidelines for the Safe Use of Wastewater, Excreta and Greywater, Volume 2: Wastewater Use in Agriculture, World Health Organization, Geneva, 2006, 213 p.
  27. M. Tandukar, A. Ohashi, H. Harada, Performance comparison of a pilot-scale UASB and DHS system and activated sludge process for the treatment of municipal wastewater, Water Res., 41 (2007) 2697–2705.
  28. M. Tandukar, I. Machdar, S. Uemura, A. Ohashi, H. Harada, Potential of a combination of UASB and DHS reactors a novel sewage treatment system for developing countries: long-term evaluation, J. Environ. Eng., 132 (2006) 166–172.
  29. D.S. Parker, T. Richards, Nitrification in trickling filters, J. WPCF, 58 (1986) 896–901.
  30. J.A. Sànchez-Guillèn, P.R. Cuèllar Guardado, C.M. Lopez Vazquez, L.M. Oliveira Cruz, D. Brdjanovic, J.B. van Lier, Anammox cultivation in a closed sponge-bed trickling filter, Bioresour. Technol., 186 (2015) 252–260.
  31. H.P. Chuang, T. Yamaguchi, H. Harada, A. Ohashi, Anoxic ammonium oxidation by application of a down-flow hanging sponge (DHS) reactor, J. Environ. Eng. Manage., 18 (2008) 409–417.
  32. J.A. Sànchez-Guillèn, L.K.M.C.B. Jayawardana, C.M. Lopez Vazquez, L.M. Oliveira Cruz, D. Brdjanovic, J.B. van Lier, Autotrophic nitrogen removal over nitrite in a sponge-bed trickling filter, Bioresour. Technol., 187 (2015) 314–325.