Abstracts
This study evaluated the treatment of wastewater from coffee wet processing (WCWP) in an anaerobic treatment system at a laboratory scale. The system included an acidification/equalization tank (AET), a heat exchanger, an Upflow Anaerobic Sludge Blanket Reactor (UASB), a gas equalization device and a gas meter. The minimum and maximum flow rates and volumetric organic loadings rate (VOLR) were 0.004 to 0.037 m³ d-1 and 0.14 to 20.29 kgCOD m-3 d-1, respectively. The kinetic parameters measured during the anaerobic biodegradation of the WCWP, with a minimal concentration of phenolic compounds of 50 mg L-1, were: Y = 0.37 mgTVS (mgCODremoved)-1, Kd = 0.0075 d-1, Ks = 1.504mg L-1, µmax = 0.2 d-1. The profile of sludge in the reactor showed total solids (TS) values from 22,296 to 55,895 mg L-1 and TVS 11,853 to 41,509 mg L-1, demonstrating a gradual increase of biomass in the reactor during the treatment, even in the presence of phenolic compounds in the concentration already mentioned.
agro-industrial waste; bacterial kinetics; pollution control; rural sanitation
O presente estudo avaliou o tratamento das águas residuárias do processamento por via úmida do café (ARC) em sistema de tratamento anaeróbio em escala de laboratório. O sistema utilizado foi composto de um tanque de acidificação e equalização (TAE), um trocador de calor, um reator anaeróbio de manta de lodo e fluxo ascendente (UASB), um equalizador de pressão e um gasômetro. Os valores de vazão mínimos e máximos foram: 0,004 a 0,037 m³ d-1 e os valores da carga orgânica volumétrica (COV) foram 0,14 a 20,29 kgCOD m-3 d-1, respectivamente. Os parâmetros cinéticos encontrados durante a biodegradação anaeróbia da ARC com concentração mínima de compostos fenólicos de 50 mg L-1, foram: Y = 0,37 mgSTV (mgCODremoved)-1; Kd= 0,0075 d-1; Ks = 1.504 mg L-1 e µmax = 0,2 d-1. O perfil de lodo no reator apresentou valores ST de 22.296 a 55.895 mg L-1 e de STV de 11.853 a 41.509 mg L-1, demonstrando o crescimento gradativo da biomassa no reator durante o tratamento, mesmo na presença de compostos fenólicos na concentração anteriormente mencionada.
cinética bacteriana; controle de poluição; resíduo agroindustrial; saneamento rural
- AMERICAN PUBLIC HEALTH ASSOCIATION - APHA; WATER WORKS ASSOCIATION - WWA; WATER ENVIROMENT FEDERATION - WEF. Standard methods for the examination of water and wastewater. Washington, 2005.
- BHUNIA, P.; GHANGREKAR, M. M. Analysis, evaluation, and optimization of kinetic parametersfor performance appraisal and design of UASB reactors. Bioresource Technology, v. 99, p. 2132-2140, 2008. http://dx.doi.org/10.1016/j.biortech.2007.05.053
- BORÉM, F. M. Pós colheita do café. In: BORÉM, F. M. Processamento do café. Lavras: UFLA, 2008. p. 127-158.
- BRUNO, M.; OLIVEIRA, R. A. Performance of UASB reactors in two stages followed by post-treatment with activated sludge in wastewater batch of wet-processed coffee. Engenharia Agrícola, v. 33, p. 808-819, 2013. http://dx.doi.org/10.1590/S0100-69162013000400020
- CAMPOS, C. M. M.; CARMO, A. C. do; LUIZ, F. A. R. Impacto ambiental causado pela poluição hídrica proveniente do processamento úmido do café. Revista Cafeicultura, v. 1, n. 4, p. 28-30, 2002.
- CAMPOS, C. M. M.; PRADO, M. A. C.; PEREIRA, E. L. Anaerobic digestion of wastewater from coffee and chemical analysis of biogas produced using gas chromatography: quantification of methane, and potential energy gas exchanger. Bioscience Journal, v. 29, n. 3, p. 570-581, 2013.
- CAMPOS, C. M. M.; PRADO, M. A. C.; PEREIRA, E. L. Physical-Chemical, Biochemical and Energetic characterization of wastewater originated from wet coffee processing. Bioscience Journal, v. 26, n. 4, p. 514-524, 2010. http://www.seer.ufu.br/index.php/biosciencejournal/article/viewFile/7129/5123
- CHEN, Y.; CHENG, J. J.; CREAMER, K. S. Inhibition of anaerobic digestion process: A review. Bioresource Technology, v. 99, p. 4044-4064, 2008. http://dx.doi.org/10.1016/j.biortech.2007.01.057
- CHERNICHARO, C. A. L. Reatores anaeróbios: princípios do tratamento biológico de águas residuárias. Belo Horizonte: Polytécnica, 2007. 379 p.
- FIA, F. R. L.; MATOS, A. T.; BORGES, A. C.; FIA, R.; CECON, P. R. Treatment of wastewater from coffee bean processing in anaerobic fixed bed reactors with different support materials: performance and kinetic modeling. Journal of Environmental Management, v. 108, p. 14-21, 2012. http://dx.doi.org/10.1016/j.jenvman.2012.04.033
- INSTITUTO ADOLFO LUTZ. Normas analíticas do Instituto Adolfo Lutz. 3. ed. São Paulo: IAL, 1985. v. 1.
- JUNG, K. W.; KIM, D. H.; LEE, M. Y.; SHIN, H. S. Two-stage UASB reactor converting coffee drink manufacturing wastewater to hydrogen and methane. International Journal of Hydrogen Energy, v. 37, p. 7473 - 7481, 2012. http://dx.doi.org/10.1016/j.ijhydene.2012.01.150
- METCALF; EDDY. Wasterwater engineering: treatment, disposal and reuse. New York: McGraw-Hill, 2003. 1334 p.
- MOTTERAN, F.; PEREIRA, E. L.; CAMPOS, C. M. M. Characterization of an acidification and equalization tank (AET) operating as a primary treatment of swine liquid effluent. Brazilian Archives of Biology and Technology, v. 56, n. 3, p. 485-494. 2013. http://dx.doi.org/10.1590/S1516-89132013000300017
- PEREIRA, E. L.; CAMPOS, C. M. M.; MOTERANI, F. Avaliação do desempenho físico-químico de um reator UASB construído em escala piloto na remoção de poluentes de efluentes de suinocultura. Revista Ambiente & Agua, v. 5, n. 1, p. 79-88, 2010. http://dx.doi.org/10.4136/ambi.agua.121
- PEREIRA, E. L.; CAMPOS, C. M. M.; MOTTERAN, F. Physical-chemical study of pH, alkalinity and total acidity in a system composed of Anaerobic Baffled Reactor in series with Upflow Anaerobic Sludge Blanket reactor in the treatment of pig farming wastewater. Acta Scientiarum Technology, v. 35, p. 477-483, 2013.
- PEREIRA, E. L. Treatment of slaughterhouse wastewater using a system consisting of reactors with biofilm. 2013. 214 p. Dissertation (Master of Science) - Escola de Engenharia de Lorena, Universidade de São Paulo, Lorena, 2014.
- RAMAKRISHNAN, A.; SURAMPALLI, R. Y. Comparative performance of UASB and anaerobic hybrid reactors for the treatment of complex phenolic wastewater. Bioresource Technology, v. 123, p. 352-359, 2012. http://dx.doi.org/10.1016/j.biortech.2012.07.072
- RIPLEY, L. E.; BOYLE, W. C.; CONVERSE, J.C. Improved alkalimetric monitoring for anaerobic digestion of high- strength wastes. Journal Water Pollution Control Federation, v. 58, n. 5, p. 406-411, 1986. http://www.jstor.org/stable/25042933
- SELVAMURUGAN, M.; DORAISAMY, P.; MAHESWARI, M.; An integrated treatment system for coffee processing wastewater using anaerobic and aerobic process. Ecological Engineering, v. 36, p. 1686-1690, 2010. http://dx.doi.org/10.1016/j.ecoleng.2010.07.013
- SILVA, J. F.; CAMPOS, C. M. M.; PEREIRA, E. L.; SILVA, V. G. Avaliação microscópica da endogenia microbiana em reatores UASB concêntricos, tratando água residuária do processamento dos frutos do cafeeiro por via úmida. Acta Scientiarum. Technology, v. 33, n. 2, p. 129-135, 2011a.
- SILVA, V. G.; CAMPOS, C. M. M.; PEREIRA, E. L.; SILVA, J. F. Characterization of the biomass of a anaerobic hybrid reactor (AHR) with two types of support material during the treatment of the coffee wastewater. Brazilian Archives of Biology and Technology, v. 56, n. 3, p. 495-504, 2013. http://dx.doi.org/10.1590/S1516-89132013000300018
- SILVA, V. G.; CAMPOS, C. M. M.; PEREIRA, E. L.; SILVA, J. F. Start-up and steady-state conditions of an Anaerobic Hybrid Reactor (AHR) using mini-filters composed with two types of support medium operating under low loading rates. Brazilian Archives of Biology and Technology, v. 54, n. 5, p. 973-982, 2011b. http://dx.doi.org/10.1590/S1516-89132011000500015
- SPEECE, R. E. Anaerobic biotechnology for industrial wastewaters. Vanderbilt University: Archae Pr., 1996. 389p.
- ZEEUW, W. J. D. Acclimatization of Anaerobic Sludge for UASB-reactor Start-up. Editora: Agricultural University of Wageningen, 1984. 156p.
Publication Dates
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Publication in this collection
31 Oct 2014 -
Date of issue
Dec 2014
History
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Received
16 Jan 2014 -
Accepted
15 Sept 2014
