Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum
A kinetic study of the anaerobic digestion of olive mill wastewater (OMW) which was obtained with the technological helper "Olivex", was carried out. An identical wastewater, obtained without this enzyme was also used. Both OMW were pre-treated aerobically with Geotrichum Candidum to elimi...
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Consejo Superior de Investigaciones Científicas
1992-08-01
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doaj-adaaa099f55340a49e0db453f2c3130e2021-05-05T07:28:35ZengConsejo Superior de Investigaciones CientíficasGrasas y Aceites0017-34951988-42141992-08-0143421922510.3989/gya.1992.v43.i4.11551135Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum CandidumR. Borja Padilla0J. Alba Mendoza1A. González Becerra2Instituto de la Grasa y sus Derivados (CSIC)Instituto de la Grasa y sus Derivados (CSIC)Centro de Investigaciones Biológicas (CSIC)A kinetic study of the anaerobic digestion of olive mill wastewater (OMW) which was obtained with the technological helper "Olivex", was carried out. An identical wastewater, obtained without this enzyme was also used. Both OMW were pre-treated aerobically with Geotrichum Candidum to eliminate the greater part of the phenolic compounds responsible for inhibition. The anaerobic process was carried out in bioreactors with microorganisms immobilized on two micronized clay supports, Sepiolite and Bentonite. Assuming that the overall anaerobic digestion process conforms to a first-order kinetic, specific rate constants, Ko, were obtained by using the Roediger's equation in each case. In contrast to what takes place with both OMW without pretreatment, kinetic constant was observed virtually constant when the substrate concentration was increased, in the range of COD (chemical oxygen demand) studied. The mean value of this kinetic parameter was a 40% larger for the OMW obtained with Olivex compared to the reference OMW, in the two digesters used. Sepiolite favoured the kinetic and increased the yield coefficient compared to Bentonite.http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1155alpechíncinéticadigestión anaerobiageotrichum candidumolivexpretratamiento aerobio |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
R. Borja Padilla J. Alba Mendoza A. González Becerra |
spellingShingle |
R. Borja Padilla J. Alba Mendoza A. González Becerra Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum Grasas y Aceites alpechín cinética digestión anaerobia geotrichum candidum olivex pretratamiento aerobio |
author_facet |
R. Borja Padilla J. Alba Mendoza A. González Becerra |
author_sort |
R. Borja Padilla |
title |
Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum |
title_short |
Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum |
title_full |
Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum |
title_fullStr |
Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum |
title_full_unstemmed |
Kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with Geotrichum Candidum |
title_sort |
kinetic study of the anaerobic digestion of olive mill wastewater, from the oil extraction using olivex, previously biotreated with geotrichum candidum |
publisher |
Consejo Superior de Investigaciones Científicas |
series |
Grasas y Aceites |
issn |
0017-3495 1988-4214 |
publishDate |
1992-08-01 |
description |
A kinetic study of the anaerobic digestion of olive mill wastewater (OMW) which was obtained with the technological helper "Olivex", was carried out. An identical wastewater, obtained without this enzyme was also used. Both OMW were pre-treated aerobically with Geotrichum Candidum to eliminate the greater part of the phenolic compounds responsible for inhibition. The anaerobic process was carried out in bioreactors with microorganisms immobilized on two micronized clay supports, Sepiolite and Bentonite.
Assuming that the overall anaerobic digestion process conforms to a first-order kinetic, specific rate constants, Ko, were obtained by using the Roediger's equation in each case. In contrast to what takes place with both OMW without pretreatment, kinetic constant was observed virtually constant when the substrate concentration was increased, in the range of COD (chemical oxygen demand) studied. The mean value of this kinetic parameter was a 40% larger for the OMW obtained with Olivex compared to the reference OMW, in the two digesters used. Sepiolite favoured the kinetic and increased the yield coefficient compared to Bentonite. |
topic |
alpechín cinética digestión anaerobia geotrichum candidum olivex pretratamiento aerobio |
url |
http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1155 |
work_keys_str_mv |
AT rborjapadilla kineticstudyoftheanaerobicdigestionofolivemillwastewaterfromtheoilextractionusingolivexpreviouslybiotreatedwithgeotrichumcandidum AT jalbamendoza kineticstudyoftheanaerobicdigestionofolivemillwastewaterfromtheoilextractionusingolivexpreviouslybiotreatedwithgeotrichumcandidum AT agonzalezbecerra kineticstudyoftheanaerobicdigestionofolivemillwastewaterfromtheoilextractionusingolivexpreviouslybiotreatedwithgeotrichumcandidum |
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