Efeitos do pH, acidez e alcalinidade na microbiota de um reator anaeróbio de manta de lodo (UASB) tratando efluentes de suinocultura

Pereira, Erlon Lopes; Campos, Cláudio Milton Montenegro; Moterani, Fabricio

doi:10.4136/ambi-agua.109

Cited by 30 publications

(16 citation statements)

References 8 publications

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“…The biological treatment consisted of two anaerobic units working in series; an anaerobic baffled reactor (ABR) and an upflow anaerobic sludge blanket reactor (UASB). The treated effluent was pumped to a greenhouse and used in fertirrigation experiments (Pereira et al, 2009;Pereira et al, 2010a;Pereira et al, 2010b;Moterani, 2010 andPereira et al, 2011).…”

Section: Experimental Apparatusmentioning

confidence: 99%

The behaviour of an anaerobic baffled reactor (ABR) as the first stage in the biological treatment of hog farming effluents

Motteran

Pereira

Campos

2013

Braz. J. Chem. Eng.

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-This present paper reports a study of the efficiency of an anaerobic Baffled Reactor (ABR) composed of three chambers working as the first stage of a biological treatment system for swine wastewater, over a period of 116 days. The average value of the volumetric organic loading rate (VOLR) was 17.8 kgCODtotal m -3 d -1 , the biological organic loading rates (BOLR) based on total and filtered COD influents of 14381 mg L -1 and 3610 mg L -1 , respectively, were: 1.3 kgCODtotal kgTVS d -1 and 0.98 kgCODfiltered kgTVS d -1 , respectively, and the hydraulic loading rate (HLR) was about 1.4 m 3 m -3 d -1 . The average removal efficiency for total COD was 80% at a hydraulic retention time (HRT) of about 18 hours. The average alkalinity in the effluent was 3801 mgCaCO 3 L -1 . The average removal efficiencies for oil and grease and total soluble solids were 41% and 78%, respectively. The sludge granulation and biogas production in the ABR were quite different between the first and third compartment, showing a distinct microbial consortium in each chamber. Through this research it was confirmed that this type of reactor can be employed as the first stage in a system treating swine wastewater.

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Section: Experimental Apparatusmentioning

confidence: 99%

The behaviour of an anaerobic baffled reactor (ABR) as the first stage in the biological treatment of hog farming effluents

Motteran

Pereira

Campos

2013

Braz. J. Chem. Eng.

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“…O valor do pH do efluente de fecularia sem adição de glicerol estava dentro da faixa considerada ideal para o processo de digestão anaeróbia e desenvolvimento dos micro-organismos (KUNZ, 2010). O pH do efluente de fecularia com adição de glicerol indica que em torno de 50% dos AGV estavam na sua forma não ionizada, que é tóxica para os micro-organismos (PEREIRA et al, 2009).…”

Section: Resultsunclassified

Produção De Metano a Partir De Efluente De Fecularia E Suinocultura Associados Com Glicerol Bruto

Pessuti

Lins

Hermes

et al. 2015

R. gest. sust. ambient.

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RESUMOA suinocultura e os setores ligados à Mandiocultura são atividades que vem ganhando destaque no agronegócio brasileiro, acentuando sua participação nos impactos provocados ao ambiente, uma das alternativas para minimizar os efeitos causados é a digestão anaeróbia, que além de remover a carga orgânica produz o biogás. O objetivo deste estudo consistiu na digestão anaeróbia de efluente de fecularia e de suinocultura, ambos associados com glicerol bruto derivado da produção de biodiesel e o efeito desta associação sobre a remoção de sólidos totais (ST) e voláteis (SV) e produção de metano. O tempo de retenção hidráulica (TRH) foi de 21 dias, com temperaturas na faixa mesófila. O inoculo utilizado foi o lodo procedente de um reator contínuo destinado à digestão anaeróbia de dejeto suíno. A adição de glicerol bruto no efluente de fecularia aumentou em 94%, a produção de metano, já para o efluente de suinocultura a maior produção de metano ocorreu no efluente sem adição de glicerol. A redução de ST e SV foi maior com a adição de glicerol, para o efluente de

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“…The pH of the studied FW was 6.29, slightly below the ideal range, but the addition of inoculum (7.49) contributed to its increment, leading to values between 6.5 and 7.5, a range indicated by Pereira et al (2009) as optimal for the growth of most microorganisms.…”

Section: Resultsmentioning

confidence: 99%

Methanization potential of anaerobic biodigestion of solid food waste

Oliveira

Filho

Vasconcelos

et al. 2018

Rev. bras. eng. agríc. ambient.

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Anaerobic biodigestion of solid and semi-solid wastes has been widely used for the treatment of these residues and methane production; however, during the process (more specifically in the acidogenic phase), there is a tendency of pH reduction, an unfavorable condition to methanogenic bacteria. Thus, the present work aims to evaluate the methanization potential of an agroindustrial anaerobic granular sludge (AIS) from UASB (Upflow Anaerobic Sludge Blanket) reactor, individually and biodigested with food waste (FW) from the University Restaurant of the Federal University of Pernambuco with buffering agent (AIS + FW + b) and without it (AIS + FW). After the laboratory tests, the AIS + FW + b configuration obtained a cumulative methane production approximately six times greater than that of AIS + FW, and approximately twice that of the inoculum alone (AIS).

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Efeitos do pH, acidez e alcalinidade na microbiota de um reator anaeróbio de manta de lodo (UASB) tratando efluentes de suinocultura

Cited by 30 publications

References 8 publications

The behaviour of an anaerobic baffled reactor (ABR) as the first stage in the biological treatment of hog farming effluents

The behaviour of an anaerobic baffled reactor (ABR) as the first stage in the biological treatment of hog farming effluents

Produção De Metano a Partir De Efluente De Fecularia E Suinocultura Associados Com Glicerol Bruto

Methanization potential of anaerobic biodigestion of solid food waste

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