Semi-continuous anaerobic co-digestion of orange peel waste and residual glycerol derived from biodiesel manufacturing.
Identifieur interne : 000D32 ( Main/Curation ); précédent : 000D31; suivant : 000D33Semi-continuous anaerobic co-digestion of orange peel waste and residual glycerol derived from biodiesel manufacturing.
Auteurs : M A Martín [Espagne] ; R. Fernández ; A. Serrano ; J A SilesSource :
- Waste management (New York, N.Y.) [ 1879-2456 ] ; 2013.
English descriptors
- KwdEn :
- Anaerobiosis, Biodegradation, Environmental, Biofuels, Biological Oxygen Demand Analysis, Bioreactors, Citrus sinensis (metabolism), Fatty Acids, Volatile (metabolism), Food Industry, Glycerol (metabolism), Hydrogen-Ion Concentration, Industrial Waste, Kinetics, Methane (biosynthesis), Temperature, Waste Management (instrumentation), Waste Management (methods).
- MESH :
- chemical , biosynthesis : Methane.
- chemical , metabolism : Fatty Acids, Volatile, Glycerol.
- chemical : Biofuels, Industrial Waste.
- instrumentation : Waste Management.
- metabolism : Citrus sinensis.
- methods : Waste Management.
- Anaerobiosis, Biodegradation, Environmental, Biological Oxygen Demand Analysis, Bioreactors, Food Industry, Hydrogen-Ion Concentration, Kinetics, Temperature.
Abstract
The manufacturing of orange juice generates high volumes of orange peel waste which should not be deposited in landfill according to current recommendations. Furthermore, glycerol is a compound co-generated in biodiesel manufacturing, but the volume generated is higher than the current demand for pure glycerol. The anaerobic co-digestion of orange peel waste with residual glycerol could reduce the inhibitory effect of some compounds and provide a correct nutrient balance. Under mesophilic temperature and semi-continuous conditions, a mixture of orange peel waste-residual glycerol of 1:1 (in COD) operated favorably for organic loads up to 2.10 g VS/L. At higher organic loads, the accumulation of volatile fatty acids (VFA) and a decrease in the pH caused process destabilization. The methane yield coefficient was quite constant, with a mean value of 330±51 mL(STP)/g VSadded, while the organic loading rate (OLR) reached a mean value of 1.91±0.37 kgVS/m3 d (17.59±2.78 kgmixture/m3 d) and the hydraulic retention time (HRT) varied in a range of 8.5-30.0 d.
DOI: 10.1016/j.wasman.2013.03.027
PubMed: 23680268
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pubmed:23680268Le document en format XML
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Fernández</name></author><author><name sortKey="Serrano, A" sort="Serrano, A" uniqKey="Serrano A" first="A" last="Serrano">A. Serrano</name></author><author><name sortKey="Siles, J A" sort="Siles, J A" uniqKey="Siles J" first="J A" last="Siles">J A Siles</name></author></analytic><series><title level="j">Waste management (New York, N.Y.)</title><idno type="eISSN">1879-2456</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anaerobiosis</term><term>Biodegradation, Environmental</term><term>Biofuels</term><term>Biological Oxygen Demand Analysis</term><term>Bioreactors</term><term>Citrus sinensis (metabolism)</term><term>Fatty Acids, Volatile (metabolism)</term><term>Food Industry</term><term>Glycerol (metabolism)</term><term>Hydrogen-Ion Concentration</term><term>Industrial Waste</term><term>Kinetics</term><term>Methane (biosynthesis)</term><term>Temperature</term><term>Waste Management (instrumentation)</term><term>Waste Management (methods)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Methane</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Fatty Acids, Volatile</term><term>Glycerol</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Biofuels</term><term>Industrial Waste</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Waste Management</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Citrus sinensis</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Waste Management</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Anaerobiosis</term><term>Biodegradation, Environmental</term><term>Biological Oxygen Demand Analysis</term><term>Bioreactors</term><term>Food Industry</term><term>Hydrogen-Ion Concentration</term><term>Kinetics</term><term>Temperature</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The manufacturing of orange juice generates high volumes of orange peel waste which should not be deposited in landfill according to current recommendations. Furthermore, glycerol is a compound co-generated in biodiesel manufacturing, but the volume generated is higher than the current demand for pure glycerol. The anaerobic co-digestion of orange peel waste with residual glycerol could reduce the inhibitory effect of some compounds and provide a correct nutrient balance. Under mesophilic temperature and semi-continuous conditions, a mixture of orange peel waste-residual glycerol of 1:1 (in COD) operated favorably for organic loads up to 2.10 g VS/L. At higher organic loads, the accumulation of volatile fatty acids (VFA) and a decrease in the pH caused process destabilization. The methane yield coefficient was quite constant, with a mean value of 330±51 mL(STP)/g VSadded, while the organic loading rate (OLR) reached a mean value of 1.91±0.37 kgVS/m3 d (17.59±2.78 kgmixture/m3 d) and the hydraulic retention time (HRT) varied in a range of 8.5-30.0 d.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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