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The sorption of Cd(II) from aqueous solutions by fixed Lentinus edodes mushroom flesh particles
Zhang, Dan1,2; Zeng, Xuedan1,2,3; Ma, Pei3; He, Haijiang1,2,3; Falandysz, Jerzy4
Corresponding AuthorZhang, D
2012
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
EISSN1944-3986
Volume46Issue:1-3Pages:21-31
SubtypeArticle
AbstractLentinus edodes residue that is immobilized with polyvinyl alcohol-Na-alginate was studied as a sorbent for Cd(II) removal from solutions to discover a cost-effective and more practical sorption material for heavy metal ion removal from sewage. Results demonstrated that the sorption of Cd ions by immobilized L. edodes reached equilibrium within 7 h. The kinetics of Cd ion sorption were best described with a pseudo-second-order model with an equilibrium sorption capacity (q(e)) of 0.2008 mg/g. The optimal pH for Cd ion sorption ranged from 4 to 7. The sorption capacity for Cd ions gradually increased with increasing initial Cd concentration from 0 to 120 mg/L. When the Cd ion concentration was fixed at 10 mg/L and the interfering metal Cu or Pb ion concentration in the same solution was varied from 0 to 30 mg/L, the sorption rate of Cd ions decreased significantly, as determined with variance analysis. The Langmuir model was the most suitable for describing Cd ion sorption with a correlation coefficient (R-2) of 0.9981 and a theoretical maximum sorption capacity (q(m)) of 6.4475 mg/g, which was similar to the experimentally observed q(m) of 6.046 mg/g. The Langmuir-Freundlich and Freundlich models were also suitable for describing the Cd ion sorption process. Scanning electron microscopy was used for observing the contractive change of the cell surface before and after absorbing Cd ions by immobilized L. edodes beads. Fourier transform infrared spectroscopy analysis demonstrated -OH, -CO, and -CO-NH in the cell wall of L. edodes plays an important role in Cd ion sorption.; Lentinus edodes residue that is immobilized with polyvinyl alcohol-Na-alginate was studied as a sorbent for Cd(II) removal from solutions to discover a cost-effective and more practical sorption material for heavy metal ion removal from sewage. Results demonstrated that the sorption of Cd ions by immobilized L. edodes reached equilibrium within 7 h. The kinetics of Cd ion sorption were best described with a pseudo-second-order model with an equilibrium sorption capacity (q(e)) of 0.2008 mg/g. The optimal pH for Cd ion sorption ranged from 4 to 7. The sorption capacity for Cd ions gradually increased with increasing initial Cd concentration from 0 to 120 mg/L. When the Cd ion concentration was fixed at 10 mg/L and the interfering metal Cu or Pb ion concentration in the same solution was varied from 0 to 30 mg/L, the sorption rate of Cd ions decreased significantly, as determined with variance analysis. The Langmuir model was the most suitable for describing Cd ion sorption with a correlation coefficient (R-2) of 0.9981 and a theoretical maximum sorption capacity (q(m)) of 6.4475 mg/g, which was similar to the experimentally observed q(m) of 6.046 mg/g. The Langmuir-Freundlich and Freundlich models were also suitable for describing the Cd ion sorption process. Scanning electron microscopy was used for observing the contractive change of the cell surface before and after absorbing Cd ions by immobilized L. edodes beads. Fourier transform infrared spectroscopy analysis demonstrated -OH, -CO, and -CO-NH in the cell wall of L. edodes plays an important role in Cd ion sorption.
KeywordImmobiL.zed L. Edodes Residue Beads Cd Ion Sorption Ftir Sem
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1080/19443994.2012.677411
WOS Subject ExtendedEngineering ; Water Resources
Indexed BySCI
WOS KeywordPOLYVINYL-ALCOHOL PVA ; PHANEROCHAETE-CHRYSOSPORIUM ; METAL BIOSORPTION ; BOTRYTIS-CINEREA ; FUNGAL BIOMASS ; BAKERS-YEAST ; TOXIC METALS ; CA-ALGINATE ; WASTE-WATER ; BY-PRODUCTS
Language英语
Quartile4区
TOP
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000304590700003
Funding OrganizationNational Natural Science Foundation of China(40871111) ; Key Scientific and Technological Project of Sichuan Province, China(04SG023-006-05)
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6294
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Environm Div & Control, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100081, Peoples R China
4.Univ Gdansk, Res Grp Environm Chem Ecotoxicol & Food Toxicol, PL-80952 Gdansk, Poland
Recommended Citation
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Zhang, Dan,Zeng, Xuedan,Ma, Pei,et al. The sorption of Cd(II) from aqueous solutions by fixed Lentinus edodes mushroom flesh particles[J]. DESALINATION AND WATER TREATMENT,2012,46(1-3):21-31.
APA Zhang, Dan,Zeng, Xuedan,Ma, Pei,He, Haijiang,&Falandysz, Jerzy.(2012).The sorption of Cd(II) from aqueous solutions by fixed Lentinus edodes mushroom flesh particles.DESALINATION AND WATER TREATMENT,46(1-3),21-31.
MLA Zhang, Dan,et al."The sorption of Cd(II) from aqueous solutions by fixed Lentinus edodes mushroom flesh particles".DESALINATION AND WATER TREATMENT 46.1-3(2012):21-31.
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