Biosorption of landfill leachate by Phanerochaete sp. ISTL01: isotherms, kinetics and toxicological assessment.
Identifieur interne : 000184 ( Main/Exploration ); précédent : 000183; suivant : 000185Biosorption of landfill leachate by Phanerochaete sp. ISTL01: isotherms, kinetics and toxicological assessment.
Auteurs : Pooja Ghosh [Inde] ; Indu Shekhar Thakur [Inde]Source :
- Environmental technology [ 1479-487X ] ; 2017.
Descripteurs français
- KwdFr :
- Adsorption (MeSH), Cellules HepG2 (MeSH), Cinétique (MeSH), Humains (MeSH), Phanerochaete (composition chimique), Polluants chimiques de l'eau (composition chimique), Polluants chimiques de l'eau (toxicité), Survie cellulaire (effets des médicaments et des substances chimiques), Test des comètes (MeSH), Élimination des déchets liquides (méthodes).
- MESH :
- composition chimique : Phanerochaete, Polluants chimiques de l'eau.
- effets des médicaments et des substances chimiques : Survie cellulaire.
- méthodes : Élimination des déchets liquides.
- toxicité : Polluants chimiques de l'eau.
- Adsorption, Cellules HepG2, Cinétique, Humains, Test des comètes.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Water Pollutants, Chemical.
- chemistry : Phanerochaete.
- drug effects : Cell Survival.
- methods : Waste Disposal, Fluid.
- chemical , toxicity : Water Pollutants, Chemical.
- Adsorption, Comet Assay, Hep G2 Cells, Humans, Kinetics.
Abstract
The study investigates the ability of fungus Phanerochaete sp. ISTL01 for biosorption of color from landfill leachate. Batch mode experiments were conducted to study the effects of pH, temperature, adsorbent dose, contact time and initial leachate concentration on biosorption. Maximum biosorption capacity was determined as 17.73 mg g-1 of biomass. Equilibrium isotherms and kinetics were further studied. The biosorption data were found to fit well to the Freundlich isotherm and pseudo-second-order kinetic model. The value of activation energy suggested that chemisorption mechanism was involved. Biosorption efficiency was also evaluated by the Methyltetrazolium (MTT) assay for cytotoxicity and alkaline comet assay in HepG2 human hepato-carcinoma cells. The fungus reduced toxicity as shown by 1.3-fold increase in MTT EC50 and 1.5- and 1.1-fold reduction in Tail moment and Olive tail moment, respectively, after 12 h biosorption. The fungus showed good biosorption characteristics in terms of contaminant-level reduction per unit mass of adsorbent, process kinetics and toxicity reduction, envisaging its application in leachate treatment.
DOI: 10.1080/09593330.2016.1244218
PubMed: 27745028
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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ISTL01 for biosorption of color from landfill leachate. Batch mode experiments were conducted to study the effects of pH, temperature, adsorbent dose, contact time and initial leachate concentration on biosorption. Maximum biosorption capacity was determined as 17.73 mg g<sup>-1</sup> of biomass. Equilibrium isotherms and kinetics were further studied. The biosorption data were found to fit well to the Freundlich isotherm and pseudo-second-order kinetic model. The value of activation energy suggested that chemisorption mechanism was involved. Biosorption efficiency was also evaluated by the Methyltetrazolium (MTT) assay for cytotoxicity and alkaline comet assay in HepG2 human hepato-carcinoma cells. The fungus reduced toxicity as shown by 1.3-fold increase in MTT EC<sub>50</sub> and 1.5- and 1.1-fold reduction in Tail moment and Olive tail moment, respectively, after 12 h biosorption. The fungus showed good biosorption characteristics in terms of contaminant-level reduction per unit mass of adsorbent, process kinetics and toxicity reduction, envisaging its application in leachate treatment.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">27745028</PMID><DateCompleted><Year>2017</Year><Month>10</Month><Day>11</Day></DateCompleted><DateRevised><Year>2017</Year><Month>10</Month><Day>11</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1479-487X</ISSN><JournalIssue CitedMedium="Internet"><Volume>38</Volume><Issue>13-14</Issue><PubDate><Year>2017</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Environmental technology</Title><ISOAbbreviation>Environ Technol</ISOAbbreviation></Journal><ArticleTitle>Biosorption of landfill leachate by Phanerochaete sp. ISTL01: isotherms, kinetics and toxicological assessment.</ArticleTitle><Pagination><MedlinePgn>1800-1811</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1080/09593330.2016.1244218</ELocationID><Abstract><AbstractText>The study investigates the ability of fungus Phanerochaete sp. ISTL01 for biosorption of color from landfill leachate. Batch mode experiments were conducted to study the effects of pH, temperature, adsorbent dose, contact time and initial leachate concentration on biosorption. Maximum biosorption capacity was determined as 17.73 mg g<sup>-1</sup> of biomass. Equilibrium isotherms and kinetics were further studied. The biosorption data were found to fit well to the Freundlich isotherm and pseudo-second-order kinetic model. The value of activation energy suggested that chemisorption mechanism was involved. Biosorption efficiency was also evaluated by the Methyltetrazolium (MTT) assay for cytotoxicity and alkaline comet assay in HepG2 human hepato-carcinoma cells. The fungus reduced toxicity as shown by 1.3-fold increase in MTT EC<sub>50</sub> and 1.5- and 1.1-fold reduction in Tail moment and Olive tail moment, respectively, after 12 h biosorption. 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