Nitrogen and organic matter removal in an intermittently aerated fixed-bed reactor for post-treatment of anaerobic effluent from a slaughterhouse wastewater treatment plant

Barana, Ana Cláudia; Lopes, Deize Dias; Martins, Tiago Henrique; Pozzi, Eloísa; Damianovic, Márcia Helena Rissato Zamariolli; Nery, Valéria Del; Foresti, Eugênio

doi:10.1016/j.jece.2013.06.015

Cited by 69 publications

(45 citation statements)

References 33 publications

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“…The experimental conditions used were defined based on the study developed by Moura et al (2012) and Barana et al (2013) (Table 1). Nine trials were evaluated that differed by the aeration time in each cycle of 180 minutes and the recirculation ratio (Qr).…”

Section: Methodsmentioning

confidence: 99%

“…Barana et al (2013) used the same reactor design to treat poultry slaughterhouse effluent with COD of 418 mg.L -1 and observed COD removal above 88%. Moura et al (2012), who evaluated the treatment of synthetic sewage with COD of 353 mg.L -1 in the same reactor, using HRT of 8 to 12 hours, Qr of 5 and aeration of 120 aerobic minutes followed by 60 without aeration, did not notice difference in the efficiency of COD removal, which varied between 85 and 89%.…”

Section: Removal Of Nitrogen and Codmentioning

confidence: 99%

“…Recent studies have shown that the use of structured bed biological reactors with intermittent aeration is feasible for the joint removal of nitrogen and COD (Santos et al, 2016;Wosiack et al, 2015;Barana et al, 2013). In this type of reactor, the COD removal, the nitrification and denitrification occur simultaneously and without the need for an external carbon source.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Aeration and Recirculation in the Removal of Nitrogen and Chemical Oxygen Demand From Sanitary Sewage in a Structured Bed Reactor

et al. 2017

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This study aimed to evaluate a structured bed reactor with intermittent aeration in the simultaneous removal of Chemical Oxygen Demand (COD) and Total Nitrogen (TN) from sanitary sewage. The reactor was operated for 339 days with a Hydraulic Retention Time (HRT) of 12 hours, temperature of 30 ± 1ºC and continuous feeding. Nine trials were carried out in which three different effluent recirculation flow (Qr), 3, 2 and 1 time the incoming flow, were evaluated in three different aeration times, of 1h, 2h, and 3h, in 3 hour cycles. The results showed that different recirculation flows and aeration times did not influence the removal of COD, which reached 89%±12. It was observed that the efficiency of TN removal was higher in the tests with higher COD/TKN ratio, between 7.2 and 7. It was verified that it is possible to remove the COD and nitrogen from sanitary sewage in a structured bed reactor with intermittent aeration.

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Section: Methodsmentioning

confidence: 99%

Section: Removal Of Nitrogen and Codmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Aeration and Recirculation in the Removal of Nitrogen and Chemical Oxygen Demand From Sanitary Sewage in a Structured Bed Reactor

et al. 2017

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“…The polluter potential of wastewater in slaughterhouse (ARA) is due to the high content of organic matter (BEUX et al, 2007;KIST et al, 2009;CAO & MEHRVAR, 2011), reflecting the presence in this type of effluent of pieces of meat, entrails, fat, fur and especially large volume of blood (PALATSI et al, 2011;BARANA et al, 2013). This fact leads to the search for effective treatment systems, in order to comply with the requirements and standards set by environmental legislation.…”

Section: Introductionmentioning

confidence: 99%

Start-up of anaerobic reactors for slaughterhouse wastewater treatment

et al. 2015

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This study aimed to evaluate the start-up of a horizontal anaerobic fixed bed reactor (HAFBR) followed by an upflow anaerobic sludge blanket (UASB) for the slaughterhouse wastewater treatment. HAFBR was filled with bamboo rings and had 1.2 m in length, 0.10 m in diameter and volume of 7.5 L. The UASB had the volume of 15 L. The HAFBR and UASB operated at organic loading rate and hydraulic retention time average of 8.46 and 3.77 kg m -3 d -1 of COD and 0.53 and 0.98 days, respectively. During 150 days of monitoring system it was found pH 6.8, relatively high values of bicarbonate alkalinity (> 1000 mg L -1 ) and reduced values of volatile acids (70 to 150 mg L -1 ), which afforded average removal efficiencies of COD total and total suspended solids of the order of 31 and 23% in HAFBR and 79% and 63% in UASB. It can be concluded that the generation and consumption of bicarbonate alkalinity and total volatile acids, thereby maintaining the pH during the study indicated stable operation of the reactors. The COD removal in the reactors was satisfactory especially when it considers that the assessment was conducted in a period of adaptation of organisms to the effluent and also the high organic load applied during this period.KEYWORDS: UASB, anaerobic filter, slaughterhouse, organic matter. , o que proporcionou eficiências médias de remoção de DQO total e sólidos suspensos da ordem de 31 e 23% no RAHLF e de 79 e 63% no UASB. Pode-se concluir que a geração de alcalinidade bicarbonato e consumo de ácidos voláteis totais e consequente manutenção do pH durante o estudo indicaram operação estável dos reatores. A remoção de DQO nos reatores foi satisfatória, principalmente quando se considera que a avaliação foi realizada em per íodo de adaptação dos microrganismos ao efluente e também à elevada carga orgânica aplicada durante este período. PARTIDA DE REATORES ANAERÓBIOS PARA TRATAMENTO DE EFLUENTES PALAVRAS-CHAVE:UASB, filtro anaeróbio, matadouro, matéria orgânica.

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“…Barana et al (2013) Santos (2014) verificou a potencialidade da remoção concomitante de matéria carbonácea e nitrogenada, em sistema alimentado com água residuária sintética, submetido a relações C/N de 9,7, de 7,6 e de 2,9, TDH de 11,2 horas, e aeração intermitente de 2 horas com aeração e 1 hora sem aeração. A eficiência média de remoção de DQO manteve-se acima de 90% ao longo de todo o período experimental.…”

Section: Nitrificação E Desnitrificação Simultâneas (Nds)unclassified

Efeitos do tempo de aeração no desempenho de reator de leito estruturado e aeração intermitente usado para remoção de matéria orgânica e nitrogênio de efluente de reator UASB

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Nitrogen and organic matter removal in an intermittently aerated fixed-bed reactor for post-treatment of anaerobic effluent from a slaughterhouse wastewater treatment plant

Cited by 69 publications

References 33 publications

Effect of Aeration and Recirculation in the Removal of Nitrogen and Chemical Oxygen Demand From Sanitary Sewage in a Structured Bed Reactor

Effect of Aeration and Recirculation in the Removal of Nitrogen and Chemical Oxygen Demand From Sanitary Sewage in a Structured Bed Reactor

Start-up of anaerobic reactors for slaughterhouse wastewater treatment

Efeitos do tempo de aeração no desempenho de reator de leito estruturado e aeração intermitente usado para remoção de matéria orgânica e nitrogênio de efluente de reator UASB

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