Enhanced removal of COD and color from landfill leachate in a sequential bioreactor.
Identifieur interne : 000327 ( Main/Exploration ); précédent : 000326; suivant : 000328Enhanced removal of COD and color from landfill leachate in a sequential bioreactor.
Auteurs : Pooja Ghosh [Inde] ; Swati [Inde] ; Indu Shekhar Thakur [Inde]Source :
- Bioresource technology [ 1873-2976 ] ; 2014.
Descripteurs français
- KwdFr :
- Analyse de la demande biologique en oxygène (MeSH), Bioréacteurs (microbiologie), Cellules HepG2 (MeSH), Chromatographie gazeuse-spectrométrie de masse (MeSH), Couleur (MeSH), Humains (MeSH), Hydrocarbures aromatiques polycycliques (métabolisme), Lignine (métabolisme), Phanerochaete (métabolisme), Polluants chimiques de l'eau (composition chimique), Polluants chimiques de l'eau (métabolisme), Pseudomonas (métabolisme), Purification de l'eau (méthodes), Test des comètes (MeSH), Tests de mutagénicité (MeSH).
- MESH :
- composition chimique : Polluants chimiques de l'eau.
- microbiologie : Bioréacteurs.
- métabolisme : Hydrocarbures aromatiques polycycliques, Lignine, Phanerochaete, Polluants chimiques de l'eau, Pseudomonas.
- méthodes : Purification de l'eau.
- Analyse de la demande biologique en oxygène, Cellules HepG2, Chromatographie gazeuse-spectrométrie de masse, Couleur, Humains, Test des comètes, Tests de mutagénicité.
English descriptors
- KwdEn :
- Biological Oxygen Demand Analysis (MeSH), Bioreactors (microbiology), Color (MeSH), Comet Assay (MeSH), Gas Chromatography-Mass Spectrometry (MeSH), Hep G2 Cells (MeSH), Humans (MeSH), Lignin (metabolism), Mutagenicity Tests (MeSH), Phanerochaete (metabolism), Polycyclic Aromatic Hydrocarbons (metabolism), Pseudomonas (metabolism), Water Pollutants, Chemical (chemistry), Water Pollutants, Chemical (metabolism), Water Purification (methods).
- MESH :
- chemical , chemistry : Water Pollutants, Chemical.
- chemical , metabolism : Lignin, Polycyclic Aromatic Hydrocarbons, Water Pollutants, Chemical.
- metabolism : Phanerochaete, Pseudomonas.
- methods : Water Purification.
- microbiology : Bioreactors.
- Biological Oxygen Demand Analysis, Color, Comet Assay, Gas Chromatography-Mass Spectrometry, Hep G2 Cells, Humans, Mutagenicity Tests.
Abstract
In the present study, a sequential treatment process was carried out using a fungal sp. (Phanerochaete sp.) followed by a bacterial sp. (Pseudomonas sp.) for the degradation and detoxification of contaminants in landfill leachate. The process was optimized using Box-Behnken design (BBD) and response surface methodology (RSM) for three variables (C source, N source and duration), while monitoring two responses (% COD and color removal). After treatment in a bioreactor under optimized conditions, enhanced removal of COD (76.9%) and color (45.4%) was observed. Further, GC-MS analysis of metabolites detected at different stages of treatment showed formation of degradation products of lignin and polycyclic aromatic compounds. Treatment efficiency was finally evaluated by the alkaline comet assay in HepG2 human hepato-carcinoma cells. The results indicated no statistically significant DNA damage at the end of the treatment, making the effluent suitable to be discharged conforming to the safety standards.
DOI: 10.1016/j.biortech.2014.07.079
PubMed: 25113402
Affiliations:
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Le document en format XML
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(Phanerochaete sp.) followed by a bacterial sp. (Pseudomonas sp.) for the degradation and detoxification of contaminants in landfill leachate. The process was optimized using Box-Behnken design (BBD) and response surface methodology (RSM) for three variables (C source, N source and duration), while monitoring two responses (% COD and color removal). After treatment in a bioreactor under optimized conditions, enhanced removal of COD (76.9%) and color (45.4%) was observed. Further, GC-MS analysis of metabolites detected at different stages of treatment showed formation of degradation products of lignin and polycyclic aromatic compounds. Treatment efficiency was finally evaluated by the alkaline comet assay in HepG2 human hepato-carcinoma cells. The results indicated no statistically significant DNA damage at the end of the treatment, making the effluent suitable to be discharged conforming to the safety standards. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">25113402</PMID><DateCompleted><Year>2015</Year><Month>06</Month><Day>02</Day></DateCompleted><DateRevised><Year>2017</Year><Month>10</Month><Day>09</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-2976</ISSN><JournalIssue CitedMedium="Internet"><Volume>170</Volume><PubDate><Year>2014</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Bioresource technology</Title><ISOAbbreviation>Bioresour Technol</ISOAbbreviation></Journal><ArticleTitle>Enhanced removal of COD and color from landfill leachate in a sequential bioreactor.</ArticleTitle><Pagination><MedlinePgn>10-19</MedlinePgn></Pagination><ELocationID EIdType="pii" ValidYN="Y">S0960-8524(14)01068-2</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.biortech.2014.07.079</ELocationID><Abstract><AbstractText>In the present study, a sequential treatment process was carried out using a fungal sp. (Phanerochaete sp.) followed by a bacterial sp. (Pseudomonas sp.) for the degradation and detoxification of contaminants in landfill leachate. The process was optimized using Box-Behnken design (BBD) and response surface methodology (RSM) for three variables (C source, N source and duration), while monitoring two responses (% COD and color removal). After treatment in a bioreactor under optimized conditions, enhanced removal of COD (76.9%) and color (45.4%) was observed. Further, GC-MS analysis of metabolites detected at different stages of treatment showed formation of degradation products of lignin and polycyclic aromatic compounds. Treatment efficiency was finally evaluated by the alkaline comet assay in HepG2 human hepato-carcinoma cells. The results indicated no statistically significant DNA damage at the end of the treatment, making the effluent suitable to be discharged conforming to the safety standards. </AbstractText><CopyrightInformation>Copyright © 2014 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ghosh</LastName><ForeName>Pooja</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India. Electronic address: pooja.ghosh9@gmail.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Swati</LastName><AffiliationInfo><Affiliation>School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Thakur</LastName><ForeName>Indu Shekhar</ForeName><Initials>IS</Initials><AffiliationInfo><Affiliation>School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India. Electronic address: isthakur@hotmail.com.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>07</Month><Day>30</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Bioresour Technol</MedlineTA><NlmUniqueID>9889523</NlmUniqueID><ISSNLinking>0960-8524</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D011084">Polycyclic Aromatic Hydrocarbons</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D014874">Water Pollutants, Chemical</NameOfSubstance></Chemical><Chemical><RegistryNumber>9005-53-2</RegistryNumber><NameOfSubstance UI="D008031">Lignin</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D057919" MajorTopicYN="Y">Biological Oxygen Demand Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019149" MajorTopicYN="N">Bioreactors</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003116" MajorTopicYN="Y">Color</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020552" MajorTopicYN="N">Comet Assay</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008401" MajorTopicYN="N">Gas Chromatography-Mass Spectrometry</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D056945" MajorTopicYN="N">Hep G2 Cells</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008031" MajorTopicYN="N">Lignin</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009152" MajorTopicYN="N">Mutagenicity Tests</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020075" MajorTopicYN="N">Phanerochaete</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011084" MajorTopicYN="N">Polycyclic Aromatic Hydrocarbons</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011549" MajorTopicYN="N">Pseudomonas</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014874" MajorTopicYN="N">Water Pollutants, Chemical</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018508" MajorTopicYN="N">Water Purification</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">Bioreactor</Keyword><Keyword MajorTopicYN="N">COD</Keyword><Keyword MajorTopicYN="N">Leachate treatment</Keyword><Keyword MajorTopicYN="N">Response surface methodology</Keyword><Keyword MajorTopicYN="N">Toxicity reduction</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2014</Year><Month>06</Month><Day>25</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2014</Year><Month>07</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2014</Year><Month>07</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>8</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>8</Month><Day>13</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2015</Year><Month>6</Month><Day>3</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">25113402</ArticleId><ArticleId IdType="pii">S0960-8524(14)01068-2</ArticleId><ArticleId IdType="doi">10.1016/j.biortech.2014.07.079</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Inde</li></country></list><tree><country name="Inde"><noRegion><name sortKey="Ghosh, Pooja" sort="Ghosh, Pooja" uniqKey="Ghosh P" first="Pooja" last="Ghosh">Pooja Ghosh</name></noRegion><name sortKey="Swati" sort="Swati" uniqKey="Swati" last="Swati">Swati</name><name sortKey="Thakur, Indu Shekhar" sort="Thakur, Indu Shekhar" uniqKey="Thakur I" first="Indu Shekhar" last="Thakur">Indu Shekhar Thakur</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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