Treatment of poplar alkaline peroxide mechanical pulping (APMP) effluent with Aspergillus niger.
Identifieur interne : 002C62 ( Main/Exploration ); précédent : 002C61; suivant : 002C63Treatment of poplar alkaline peroxide mechanical pulping (APMP) effluent with Aspergillus niger.
Auteurs : Tingzhi Liu [République populaire de Chine] ; Huiren Hu ; Zhibin He ; Yonghao NiSource :
- Bioresource technology [ 1873-2976 ] ; 2011.
Descripteurs français
- KwdFr :
- Alcalis (composition chimique), Analyse de la demande biologique en oxygène (MeSH), Aspergillus niger (croissance et développement), Aspergillus niger (métabolisme), Biomasse (MeSH), Biotechnologie (méthodes), Concentration en ions d'hydrogène (MeSH), Couleur (MeSH), Dépollution biologique de l'environnement (MeSH), Facteurs temps (MeSH), Papier (MeSH), Peroxydes (composition chimique), Populus (composition chimique), Température (MeSH), Élimination des déchets liquides (MeSH).
- MESH :
- composition chimique : Alcalis, Peroxydes, Populus.
- croissance et développement : Aspergillus niger.
- métabolisme : Aspergillus niger.
- méthodes : Biotechnologie.
- Analyse de la demande biologique en oxygène, Biomasse, Concentration en ions d'hydrogène, Couleur, Dépollution biologique de l'environnement, Facteurs temps, Papier, Température, Élimination des déchets liquides.
English descriptors
- KwdEn :
- Alkalies (chemistry), Aspergillus niger (growth & development), Aspergillus niger (metabolism), Biodegradation, Environmental (MeSH), Biological Oxygen Demand Analysis (MeSH), Biomass (MeSH), Biotechnology (methods), Color (MeSH), Hydrogen-Ion Concentration (MeSH), Paper (MeSH), Peroxides (chemistry), Populus (chemistry), Temperature (MeSH), Time Factors (MeSH), Waste Disposal, Fluid (MeSH).
- MESH :
- chemical , chemistry : Alkalies, Peroxides.
- chemistry : Populus.
- growth & development : Aspergillus niger.
- metabolism : Aspergillus niger.
- methods : Biotechnology.
- Biodegradation, Environmental, Biological Oxygen Demand Analysis, Biomass, Color, Hydrogen-Ion Concentration, Paper, Temperature, Time Factors, Waste Disposal, Fluid.
Abstract
Although the moderate load (COD of 5000-10,000 mg/L) and biodegradability of the APMP pulping effluent should allow biological treatment, toxic compounds in the effluent can interfere with this type of treatment. Studies were conducted to determine if treatment of the effluent with Aspergillus niger S13 was feasible. Under the optimized conditions (3% inoculum, pH 6, shaking at 160 rpm, 60-72 h, and 30°C), this fungus was able to remove about 97% of the methyl tertiary butyl ether (MTBE) extractives, and 60%, 77% and 43% of the chemical oxygen demand, turbidity and color even without a pre-flocculation step. These results are of practical interest in China because the APMP process has become popular, and efficient and cost-effective effluent treatment technologies are in high demand.
DOI: 10.1016/j.biortech.2011.04.043
PubMed: 21612920
Affiliations:
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Studies were conducted to determine if treatment of the effluent with Aspergillus niger S13 was feasible. Under the optimized conditions (3% inoculum, pH 6, shaking at 160 rpm, 60-72 h, and 30°C), this fungus was able to remove about 97% of the methyl tertiary butyl ether (MTBE) extractives, and 60%, 77% and 43% of the chemical oxygen demand, turbidity and color even without a pre-flocculation step. 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Studies were conducted to determine if treatment of the effluent with Aspergillus niger S13 was feasible. Under the optimized conditions (3% inoculum, pH 6, shaking at 160 rpm, 60-72 h, and 30°C), this fungus was able to remove about 97% of the methyl tertiary butyl ether (MTBE) extractives, and 60%, 77% and 43% of the chemical oxygen demand, turbidity and color even without a pre-flocculation step. These results are of practical interest in China because the APMP process has become popular, and efficient and cost-effective effluent treatment technologies are in high demand.</AbstractText><CopyrightInformation>Copyright © 2011 Elsevier Ltd. 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sortKey="Ni, Yonghao" sort="Ni, Yonghao" uniqKey="Ni Y" first="Yonghao" last="Ni">Yonghao Ni</name></noCountry><country name="République populaire de Chine"><noRegion><name sortKey="Liu, Tingzhi" sort="Liu, Tingzhi" uniqKey="Liu T" first="Tingzhi" last="Liu">Tingzhi Liu</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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