Nutrient removal in anaerobic-aerobic reactors followed by a trickling filter
DOI:
https://doi.org/10.5902/2179460X91600Keywords:
Combined processes, Nitrogen removal, Phosphorus adsorptionAbstract
This study aimed to evaluate the performance of a combined system used in nitrogen and phosphorus removal, with a variation of the hydraulic retention time (HRT) and the recirculation rate (R). The system consisted of three sequential reactors operated in series, composed of an anaerobic reactor (20 L), an aerobic fixed bed reactor (19 L), and a trickling filter (16 L). The recirculation rates of 150, 100, and 50% and HRT of 9, 7, and 5 h have been, with a constant aeration flow of 10 L min-1. For system evaluation, liquid temperature, pH, total alkalinity, bicarbonate alkalinity, volatile acids, dissolved oxygen, chemical oxygen demand, Kjeldahl total nitrogen, nitrogen ammonia, nitrite, nitrate, and total phosphorus have been analyzed. The combined system has reached achieved organic matter removal efficiencies of 99%, 98%, and 98% for the recirculation rates of 50, 100, and 150%, respectively. Under the same R rates, TKN removal efficiencies resulted in 96, 89, and 87%, and TP removal efficiencies in 78, 82, and 77%, respectively. When operated with HRT of 9, 7, and 5 h, the combined system achieved removal efficiencies of 86, 96, and 98% for COD, 90, 93, and 94% for TKN, and 74, 89, and 95% for TP, respectively. The best operational condition was experimentally established having with a recirculation rate of 150% and HRT of 5 h. However, after experimental validation by CCRD (through desirability), the optimal operational condition resulted in a recirculation rate of 123% and HRT of 5 h for TKN and PT removal efficiencies.
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ABREU, S. B.; ZAIAT, M. Desempenho de reator anaeróbio-aeróbio de leito fixo no tratamento de esgoto sanitário. Engenharia Sanitária e Ambiental, v. 13, n. 2, p.181-188, 2008.
APHA. Standard Methods for the Examination of Water and Wastewater (23rd ed.). Washington DC: American Public Health Association. 2017.
ARAÚJO, A. P. C. S.; FREITAS, B. de O. Remoção de Matéria Orgânica e Oxidação do Nitrogênio Amoniacal Presente em Esgoto Sanitário Por Sistema Combinado UASB e Biofiltro Aerado Submerso. Enciclopédia Biosfera: Centro Científico Conhecer, Goiânia, v. 10, n. 19, p.1642-1655, 2014.
BACELO, H.; PINTOR, A.M.A.; SANTOS, S.C.R.; BOAVENTURA, R.A.R.; BOTELHO, C.M.S. Performance and prospects of different adsorbents for phosphorus uptake and recovery from water. Chemical Engineering Journal, v. 381, 2020.
BRASIL. Resolução Conama N° 357, de 17 de março de 2005: Dispõe sobre a classificação dos corpos de água e diretrizes ambientais para o seu enquadramento, bem como estabelece as condições e padrões de lançamento de efluentes, e dá outras providências. 2005. Brasília, DF: CONAMA [2005]. Disponível em: http://pnqa.ana.gov.br/Publicacao/RESOLUCAO_CONAMA_n_357.pdf.
BRASIL. Resolução Conama Nº 430 de 13 de maio de 2011: Dispõe sobre as condições e padrões de lançamento de efluentes, complementa e altera a Resolução nº 357/2005. 2011. Brasília, DF: CONAMA [2011]. Disponível em: https://www.legisweb.com.br/legislacao/?id=114770.
CHERNICHARO, C.A. de L. Post-treatment Options for the Anaerobic Treatment of Domestic Wastewater. Reviews. Environmental Science and Biotechnology. p. 73-92. 2006.
DILLALO, R.; ALBETSON, O. E. Volatile acids by direct titration. Journal of Water Pollution Control Federation, New York, v. 33, n. 4, p. 356-365, 1961.
FOCO, M. L. R.; NOUR, E. A. A. Desempenho de sistema combinado anaeróbio-aeróbio na remoção de nitrogênio no tratamento de esgoto sanitário. Ciências Exatas e Tecnologia, Londrina, v. 35, n. 2, p. 131-138. 2014.
JIANG, Yu; WANG, Hongyu; Shang, Yu; Yang Kai. Simultaneous removal of aniline, nitrogen and phosphosrus in a line-containing wastewater treatment by using sequencing batch reactor. Bioresource Technology, v. 207, p. 422-429, 2016.
JORDÃO, E. P.; PESSÔA, C. A. Tratamento de Esgotos Domésticos. 6.ed. Rio de Janeiro: Abes, 2011. 969 p.
KAVOUSI, R.; BORGHEI, S. M. Application of Anaerobic-Aerobic Combined Bioreactor in Phosphorus Removal. Geomatics and Environmental Engineering, v.17, no. 6, p. 111-127, 2023.
KAÇAN, E., KÜTAHYALI, C. Adsorption of strontium from aqueous solution using activated carbon produced from textile sewage sludges, J. Anal. Appl. Pyrolysis, v.97, p.149–157, 2012.
LIER, J. B. van; ZEE, F. P. van der; FRIJTERS, C. T. M. J.; ERSAHIN, M. E. Celebrating 40 years anaerobic sludge bed reactors for industrial wastewater treatment. Reviews in Environmental Science and Bio/Technology, v. 14, n. 4, p. 681-702, 2015.
NIWA, T.; HATAMOTO, M.; YAMASHITA, T.; NOGUCHI, H.; TAKASE, O.; KEKRE, K. A.; ANG, W. S.; TAO, G.; SEAH, H.; YAMAGUCHI, T. Demostration of a full-scale plant using na UASB followed by a ceramic MBR for the reclamation of industrial wastewater. Bioresource Techology, v. 218, p. 1-8, 2016.
OLIVEIRA NETTO, A. P. de; ZAIAT, M. Treatment of Domestic Sewage in na Anaerobic-Aerobic Fixed-bed Reactor with Recirculation of the Liquid Phase. Clean Soil Air Water, [s.l.], v. 40, n. 9, p.965-971, 26 jul. 2012.
OLIVEIRA NETTO, A. P. Reator Anaeróbio-Aeróbio de Leito Fixo, Com Recirculação da Fase Líquida, Aplicado ao Tratamento de Esgoto Sanitário. 2007. Tese (Mestrado) – Escola de Engenharia de São Carlos, Universidade de São Paulo, São Carlos, SP. 2007.
RATHI, B.S.; KUMAR, P. S. Application of adsorption process for effective removal of emerging contaminants from water and wastewater. Environmental Pollution, v. 280, 2021.
RIPLEY, L. E.; BOYLE, W. C.; CONVERSE, J. C. Improved Alkalimetric Monitoring for Anaerobic Digestion of High-Strength Wastes. Journal Water Pollution Control Federation, New York, v. 58, n. 5, p. 406-411, 1986.
SPERLING, M. V. Introdução à qualidade das águas e ao tratamento de esgotos: princípios do tratamento biológico de águas residuárias. Belo Horizonte: UFMG, 2006.
TAWFIK, A.; BADR, N.; TALEB, E.; EL-SENOUSY, W. Sewage treatment in an up-flow anaerobic sponge reactor followed by moving bed biofilm reactor based on polyurethane carrier material. Desalination And Water Treatment, [s.l.], v. 37, n. 1-3, p.350-358, 2012.
TORRES, P. Desempenho de um Reator Anaeróbio de Manta de Lodo (UASB) de Bancada no Tratamento de Substrato Sintético Simulando Esgoto Sanitário. 1992. São Carlos. 185p. Dissertação (Mestrado) - Escola de Engenharia de São Carlos - Universidade de São Paulo. 1992.
UGWUANYI, E.D.; NWOKEDIEGWU, Z.Q.S.; DADA, M.A.; MAJEMITE, M.T.; OBAIGBENA, A. Review of emerging technologies for nutrient removal in wastewater treatment. World Journal of Advanced Research and Reviews, v. 21, no. 02, p, 1737–1749, 2024.
WANG, H., SHEN, S., LIU, L., JI, Y., WANG, F. Effective adsorption of phosphate from wastewaters by big composite pellets made of reduced steel slag and iron ore concentrate. Environmental Technology, 36(22), p. 2835–2846, 2015.
WOSIACK, P. A.; LOPES, D. D.; DAMIANOVIC, M. H. R. Z.; FORESTI, E.; GRANATO, D.; BARANA, A. C. Removal of COD and nitrogen from animal food plant wastewater in an intermittently-aerated structured-bed reactor. Journal Of Environmental Management, [s.l.], v. 154, p.145-150, 2015.
YAYA-BEAS, R.; CADILLO-LA-TORRE, E.; KUJAWA-ROELEVELD, K.; LIER, J. B. V.; ZEEMAN, G. Presence of helminth eggs in domestic wastewater and its removal at low temperature UASB reactors in Peruvian highlands. Water Research, v. 90, p. 286-293, 2016.
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