Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit

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 wi...

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Main Authors: Milena Alves de Souza, Milena Penteado Chaguri, Fabrício Rogério Castelini, Jorge de Lucas Junior, Rose Meire Vidotti
Format: Article
Language:English
Published: Sociedade Brasileira de Zootecnia 2012-02-01
Series:Revista Brasileira de Zootecnia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200002
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author Milena Alves de Souza
Milena Penteado Chaguri
Fabrício Rogério Castelini
Jorge de Lucas Junior
Rose Meire Vidotti
author_facet Milena Alves de Souza
Milena Penteado Chaguri
Fabrício Rogério Castelini
Jorge de Lucas Junior
Rose Meire Vidotti
author_sort Milena Alves de Souza
collection DOAJ
description 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 population from the 37th day, as well as greatest daily production. Gases composition did not differ between the protein concentrates, but the gas obtained with the use of the effluent from the filleting stage presented highest methane gas average (78.05%) in comparison with those obtained in the bleeding stage (69.95%) and in the continuous process (70.02%) or by the control method (68.59%).
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spelling doaj.art-be1a4c5834bc4621945b4e2f44566e2f2022-12-22T02:15:07ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1516-35981806-92902012-02-0141224224810.1590/S1516-35982012000200002Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unitMilena Alves de SouzaMilena Penteado ChaguriFabrício Rogério CasteliniJorge de Lucas JuniorRose Meire VidottiThe 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 population from the 37th day, as well as greatest daily production. Gases composition did not differ between the protein concentrates, but the gas obtained with the use of the effluent from the filleting stage presented highest methane gas average (78.05%) in comparison with those obtained in the bleeding stage (69.95%) and in the continuous process (70.02%) or by the control method (68.59%).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200002biogasbleedingfilletingfreshwater-fishmethane
spellingShingle Milena Alves de Souza
Milena Penteado Chaguri
Fabrício Rogério Castelini
Jorge de Lucas Junior
Rose Meire Vidotti
Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
Revista Brasileira de Zootecnia
biogas
bleeding
filleting
freshwater-fish
methane
title Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
title_full Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
title_fullStr Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
title_full_unstemmed Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
title_short Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
title_sort anaerobic bio digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
topic biogas
bleeding
filleting
freshwater-fish
methane
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200002
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