Experimental and theoretical study of recovery processes of olive by-products by thermal and physico-chemical paths
Identifieur interne : 000368 ( Main/Exploration ); précédent : 000367; suivant : 000369Experimental and theoretical study of recovery processes of olive by-products by thermal and physico-chemical paths
Auteurs : Ajmia Chouchene [France]Source :
Descripteurs français
English descriptors
- mix :
Abstract
In Tunisia, oil extraction industry generates high amount of two by-products: an aqueous effluent (Olive Mill WasteWater) and a solid residue (Olive Mill Solid Waste). Two recovery pathways (thermal and physicochemical) were performed to reduce these wastes. Firstly, a combined process which includes impregnation on low-cost renewable absorbents and an energetic recovery via combustion was studied. Olive Mill Solid Waste (OMSW) and sawdust were chosen as absorbent of OMWW. During combustion tests, carbon balance increases with temperature increasing followed by an increase of CO and VOC emissions. Nevertheless, it was necessary to increase the residence time of gas in order to reduce the unburned compounds in the exhaust. This process may be a promising issue to reduce OMWW environmental impact. The mixture of OMSW/ OMWW with mass ratio of OMWW close to 28%wt shows a similar behaviour to original OMSW under inert and oxidative atmospheres. It seems that the use of this mixture of OMSW/OMWW may be a solution for Tunisia since the resource is abundant and may increase farm yields. The physico-chemical way of OMSW recovery focused on the removal of nickel and copper from wastewaters. The trapping of these metals in the ash reveals that nickel and copper are low volatilized. Moreover, these metals are not soluble during leaching. Consequently, their transfer to the atmosphere and the environment is minimal.
Url:
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000007
- to stream Hal, to step Curation: 000007
- to stream Hal, to step Checkpoint: 000018
- to stream Main, to step Merge: 000377
- to stream Main, to step Curation: 000368
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Experimental and theoretical study of recovery processes of olive by-products by thermal and physico-chemical paths</title><title xml:lang="fr">Etude expérimentale et théorique de procédés de valorisation de sous-produtis oléicoles par voies thermique et physico-chimique</title><author><name sortKey="Chouchene, Ajmia" sort="Chouchene, Ajmia" uniqKey="Chouchene A" first="Ajmia" last="Chouchene">Ajmia Chouchene</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-109941" status="VALID"><orgName>Laboratoire de Gestion des Risques et Environnement</orgName><orgName type="acronym">GRE</orgName><desc><address><addrLine>25 rue de Chemnitz 68200 Mulhouse</addrLine><country key="FR"></country></address><ref type="url">http://www.gre.uha.fr/</ref></desc><listRelation><relation name="EA2334" active="#struct-300319" type="direct"></relation></listRelation><tutelles><tutelle name="EA2334" active="#struct-300319" type="direct"><org type="institution" xml:id="struct-300319" status="INCOMING"><orgName>Université de Haute Alsace - Mulhouse</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Mulhouse</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region></placeName><orgName type="university">Université de Haute-Alsace</orgName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">HAL</idno><idno type="RBID">Hal:tel-00703759</idno><idno type="halId">tel-00703759</idno><idno type="halUri">https://tel.archives-ouvertes.fr/tel-00703759</idno><idno type="url">https://tel.archives-ouvertes.fr/tel-00703759</idno><date when="2010-12-06">2010-12-06</date><idno type="wicri:Area/Hal/Corpus">000007</idno><idno type="wicri:Area/Hal/Curation">000007</idno><idno type="wicri:Area/Hal/Checkpoint">000018</idno><idno type="wicri:explorRef" wicri:stream="Hal" wicri:step="Checkpoint">000018</idno><idno type="wicri:Area/Main/Merge">000377</idno><idno type="wicri:Area/Main/Curation">000368</idno><idno type="wicri:Area/Main/Exploration">000368</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Experimental and theoretical study of recovery processes of olive by-products by thermal and physico-chemical paths</title><title xml:lang="fr">Etude expérimentale et théorique de procédés de valorisation de sous-produtis oléicoles par voies thermique et physico-chimique</title><author><name sortKey="Chouchene, Ajmia" sort="Chouchene, Ajmia" uniqKey="Chouchene A" first="Ajmia" last="Chouchene">Ajmia Chouchene</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-109941" status="VALID"><orgName>Laboratoire de Gestion des Risques et Environnement</orgName><orgName type="acronym">GRE</orgName><desc><address><addrLine>25 rue de Chemnitz 68200 Mulhouse</addrLine><country key="FR"></country></address><ref type="url">http://www.gre.uha.fr/</ref></desc><listRelation><relation name="EA2334" active="#struct-300319" type="direct"></relation></listRelation><tutelles><tutelle name="EA2334" active="#struct-300319" type="direct"><org type="institution" xml:id="struct-300319" status="INCOMING"><orgName>Université de Haute Alsace - Mulhouse</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Mulhouse</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region></placeName><orgName type="university">Université de Haute-Alsace</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Absorption</term><term>Combustion</term><term>Emissions</term><term>Kinetic</term><term>Metals</term><term>Olive Mill Solid Waste</term><term>Olive Mill WasteWater</term><term>Pyrolysis</term></keywords><keywords scheme="mix" xml:lang="fr"><term>Cinétique</term><term>Grignons d'olives</term><term>Margines</term><term>Métaux</term><term>Pyrolyse</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Métal</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In Tunisia, oil extraction industry generates high amount of two by-products: an aqueous effluent (Olive Mill WasteWater) and a solid residue (Olive Mill Solid Waste). Two recovery pathways (thermal and physicochemical) were performed to reduce these wastes. Firstly, a combined process which includes impregnation on low-cost renewable absorbents and an energetic recovery via combustion was studied. Olive Mill Solid Waste (OMSW) and sawdust were chosen as absorbent of OMWW. During combustion tests, carbon balance increases with temperature increasing followed by an increase of CO and VOC emissions. Nevertheless, it was necessary to increase the residence time of gas in order to reduce the unburned compounds in the exhaust. This process may be a promising issue to reduce OMWW environmental impact. The mixture of OMSW/ OMWW with mass ratio of OMWW close to 28%wt shows a similar behaviour to original OMSW under inert and oxidative atmospheres. It seems that the use of this mixture of OMSW/OMWW may be a solution for Tunisia since the resource is abundant and may increase farm yields. The physico-chemical way of OMSW recovery focused on the removal of nickel and copper from wastewaters. The trapping of these metals in the ash reveals that nickel and copper are low volatilized. Moreover, these metals are not soluble during leaching. Consequently, their transfer to the atmosphere and the environment is minimal.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li></region><settlement><li>Mulhouse</li></settlement><orgName><li>Université de Haute-Alsace</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Chouchene, Ajmia" sort="Chouchene, Ajmia" uniqKey="Chouchene A" first="Ajmia" last="Chouchene">Ajmia Chouchene</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/NickelMaghrebV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000368 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000368 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= NickelMaghrebV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Hal:tel-00703759
|texte= Experimental and theoretical study of recovery processes of olive by-products by thermal and physico-chemical paths
}}
| This area was generated with Dilib version V0.6.27. |  |