Effect of feeding strategy and COD/sulfate ratio on the removal of sulfate in an AnSBBR with recirculation of the liquid phase

Archilha, Natália C.; Canto, Catarina Simone Andrade do; Ratusznei, Suzana Maria; Rodrigues, José Alberto Domingues; Zaiat, Marcelo; Foresti, Eugênio

doi:10.1016/j.jenvman.2010.03.016

Cited by 20 publications

(5 citation statements)

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“…Sequential batch reactor and sequencing batch biofilm reactor are the most common configuration of batch reactors used for sulfate removal. These reactors offers specific conditions for operating the system at high cellular retention times once it promotes microbial immobilization or cellular adhesion in some inert support such as porcelain rings (Mohan et al, 2005), mineral coal (Sarti et al, 2010), and polyurethane foam (Archilha et al, 2010). The operation of such reactor comprises of feeding liquid influent, anaerobic biological reactions, settling of sludge, decantation and then drawing the final effluent (Dague, 1993).…”

Section: Sulfidementioning

confidence: 99%

Theoretical and Practical Aspects of Biological Sulfate Reduction: A Review

2019

Global NEST: The International Journal

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The major environmental impact of discharge of excessive quantities of sulfate is the pollution of the surface and ground water supplies which can be harmful to life forms and therefore the need for an efficient treatment system arises. Biological sulfate reduction offers the advantage of less sludge production, less operational cost and efficiency in comparison to the physicochemical processes. Depending upon the feeding and operating conditions as well as microbes used, a number of intermediates are formed that may greatly affect the overall performance of bioreactor. This article extensively explores the bacterial community, formation of intermediates and desirable end products, theoretical and practical aspects of various environmental and operating conditions, and performance of bioreactors used for treating sulfate rich wastewater along with process biokinetics involved in biological sulfate reduction.

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Section: Sulfidementioning

confidence: 99%

Theoretical and Practical Aspects of Biological Sulfate Reduction: A Review

2019

Global NEST: The International Journal

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“…This corroborates with the findings of Jeong et al (2008) reported that the formation of H 2 S was decreased with increase in COD/SO 4 2− ratio from 1.1 to 116 and the removal of sulphate ion was decreased with increase in F/M ratios. Archilha et al (2010) reported that the production of sulphide was found to be high for the wastewater operated at low COD/SO 4 2− ratio. The AD of PTWW with COD/SO 4 2− ratio of 1.2 showed H 2 S formation below 460 mg L −1 at all F/M ratios in the present investigation.…”

Section: Effect Of F/m Ratio On Anaerobic Digestion Of Wastewater Witmentioning

confidence: 99%

Anaerobic digestion of sulphate-rich post-tanning wastewater at different COD/sulphate and F/M ratios

et al. 2018

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Anaerobic digestion of post-tanning wastewater was performed in batch anaerobic digester to evaluate the effect of COD/sulphate ratio [0.62, 0.69, and 1.20 (w/w) %] and F/M ratio [0.2, 0.3, 0.5, 0.7, 0.9, 1.1, 1.3, and 1.5 (w/w) %)] on the removal efficiency of COD. The F/M ratio of 0.3 was found to be the optimum ratio for the removal of COD by 53, 57, and 65%, respectively at COD/sulphate ratio of 0.62, 0.69, and 1.20. The maximum sulphate removal was observed at F/M ratio of 0.2 and the removal efficiency was 48, 50, and 58% at COD/sulphate ratio of 0.62, 0.69, and 1.20, respectively. The removal efficiency of COD and sulphate was increased with increase in COD/sulphate ratio from 0.62 to 1.20 and decreased with increase in F/M ratio from 0.2 to 1.5 in anaerobic digestion of post-tanning wastewater. The maximum concentration of sulphide formation was 784 mg/L at COD/sulphate ratio of 0.62 in anaerobic digestion process and the process was inhibited at this sulphide concentration. The microbial activity in the sludge was evaluated through live and dead cell assay using fluorescent microscopy. The maximum amount of dead microbes was observed in the anaerobic digester, which was operated at COD/sulphate ratio of 0.62 than other studied ratio.

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“…Os reatores descontínuos usando biomassa granulada (ASBR) e imobilizada (AnSBBR) foram aplicados ao tratamento de vários tipos de águas residuárias como: esgotos sanitários, indústria alimentícia (soro de leite), indústria química (produtos de higiene pessoal, indústria automobilística, indústria metalúrgica, resíduos da produção de biodiesel, resíduos contento nitrogênio amoniacal, resíduos contendo sulfato), lixiviados de aterros, e resíduos de suinocultura (Canto et al, 2008;Damasceno et al, 2007Damasceno et al, e 2008Zimmer et al, 2008;Mockaitis et al, 2010;Bezerra et al, 2007Bezerra et al, , 2009Bezerra et al, e 2011Oliveira et al, 2008Oliveira et al, e 2009Albanez et al, 2009;Novaes et al, 2010aNovaes et al, e 2010bCarvalhinha et al, 2010, Archilha et al, 2010Selma et al, 2010;Rodrigues et al, 2011;Costabile et al, 2011;Lovato et al, 2012;Silva et al, 2013).…”

Section: Objetivo Geralunclassified

Produção de biohidrogênio em AnSBBR tratando efluente do processo de produção de biodiesel: efeito da carga orgânica e do tempo de enchimento

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Effect of feeding strategy and COD/sulfate ratio on the removal of sulfate in an AnSBBR with recirculation of the liquid phase

Cited by 20 publications

References 20 publications

Theoretical and Practical Aspects of Biological Sulfate Reduction: A Review

Theoretical and Practical Aspects of Biological Sulfate Reduction: A Review

Anaerobic digestion of sulphate-rich post-tanning wastewater at different COD/sulphate and F/M ratios

Produção de biohidrogênio em AnSBBR tratando efluente do processo de produção de biodiesel: efeito da carga orgânica e do tempo de enchimento

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