2012
DOI: 10.1590/s1516-35982012000200002
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Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit

Abstract: -The objective of the present study was to evaluate the efficiency of the process of biodigestion of the protein concentrate resulting from the ultrafiltration of the effluent from a slaughterhouse freezer of Nile tilapia. Bench digesters were used with excrements and water (control) in comparison with a mixture of cattle manure and effluent from the stages of filleting and bleeding of tilapias. The effluent obtained in the continuous process (bleeding + filleting) was the one with highest accumulated populati… Show more

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Cited by 4 publications
(3 citation statements)
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“…The anaerobic fermentation takes place in a pH range between 5.5 and 8 for all phases. For the acidogenesis phase, it is between 5.5 and 6.5 (Souza et al, 2012), for acetogenesis, it is near neutrality. For methanogens, the pH range is between 6 and 8 (Gourdon, 2002).…”
Section: Ch 3 Cooh → Ch 4 + Co 2 (Reaction 2)mentioning
confidence: 95%
“…The anaerobic fermentation takes place in a pH range between 5.5 and 8 for all phases. For the acidogenesis phase, it is between 5.5 and 6.5 (Souza et al, 2012), for acetogenesis, it is near neutrality. For methanogens, the pH range is between 6 and 8 (Gourdon, 2002).…”
Section: Ch 3 Cooh → Ch 4 + Co 2 (Reaction 2)mentioning
confidence: 95%
“…The occurrence of these variations in operating conditions makes it difficult to plan a single treatment unit capable of meeting the requirements for all types of effluents produced in this type of industry (SOUZA et al, 2012). Therefore, the characterization of effluents, including daily volume, flow rates and associated pollutant load, is fundamental for an efficient design of the treatment systems.…”
Section: Characterization and Technologies For Treatment Of Effluentsmentioning
confidence: 99%
“…Nesse sentido, as águas residuais desta atividade industrial são potencialmente poluidoras. Os processos comumente usados no tratamento destes efluentes envolvem a coagulação/sedimentação (Konieczny et al, 2005), flotação (Cristovão et al, 2014), processos biológicos (Alexandre et al, 2011) e combinações de processos (Souza et al, 2012;Cristovão et al, 2012;Bustillo-Lecompte & Mehrvar, 2015).…”
Section: Introductionunclassified