Selection of optimum formulation for biosorbing lead and cadmium from aquatic solution by using PVA-SA's immobilizing Lentinus edodes residue
文献类型：期刊论文
| 作者 | Zhang, Dan1,2 ; Zeng, Xuedan1,2,3; Li, Wei1,2; He, Haijiang1,2,3; Ma, Pei3; Falandysz, Jerzy4
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| 刊名 | DESALINATION AND WATER TREATMENT
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| 出版日期 | 2011-07-01 |
| 卷号 | 31期号:1-3页码:107-114 |
| 关键词 | PVA-SA Immobilization Lentinus edodes residue Thermodynamics |
| ISSN号 | 1944-3994 |
| 通讯作者 | Dan Zhang |
| 合作状况 | 国际 |
| 英文摘要 | This study focused on macrofungi Lentinus edodes residue immobilized by polyvinyl alcohol (PVA)-Na-alginate (SA) for lead (Pb) and cadmium (Cd) adsorption. Based on the ability of absorbing Pb2+ and Cd2+ from aqueous solution, the mechanical strength and balling property, an orthogonal experiment was done to confirm the optimum formulation of PVA-SA's immobilizing L. edodes. The optimum immobilization formulation for absorbing Pb2+ was 8% (m/V) PVA + 1% SA + 3% L. edodes + 2% CaCl2 in saturated H3BO3 solution with adsorption rate of 95.4%, while that for absorbing Cd2+ was 5% PVA + 1% SA + 3% L. edodes + 2% CaCl2 in saturated H3BO3 with adsorption rate of 63.7%. The Langmuir isotherm model best described free L. edodes for Pb2+ adsorption with R-2 of 0.9939. Freundlich isotherm model best described free L. edodes for Cd2+ adsorption with R-2 of 0.9993 and best described Pb2+ and Cd2+ adsorption by immobilized L. edodes with R-2 of 0.9587 and 0.9823 respectively. The adsorption for Pb2+ and Cd2+ by L. edodes reached equilibrium within 1 h with equilibrium quantity (q(e)) of 0.8440 mg Pb2+/g and 1.8120 mg Cd2+/g respectively, while that by immobilized L. edodes reached equilibrium within 3 h and 7 h separately with q(e) of 0.4925 mg Pb2+/g and 0.2008 mg Cd2+/g respectively. The pseudo-second-order model fit well Cd2+ and Pb2+ adsorption kinetics by free L. edodes and immobilized L. edodes. The rate constant k(2) of the pseudo-second-order model was 1.2531 for Cd2+ adsorption and was 1.3241 for Pb2+ by free L. edodes, and that was 0.7805 for Pb2+ and 0.2310 for Cd2+ by immobilized L. edodes respectively. The theoretic maximum adsorption quantity (q(m)) of of 6.4475 mg/g for Cd2+ by immobilized L. edodes was higher than q(m) of 2.8321 mg/g for Cd2+ by free L. edodes calculated from the Langmuir model and the k value of 3.0401 by immobilized L. edodes calcuated from the Freundlich model for Pb2+ adsorption was higher than the k value of 0.7704 for Cd2+ adsorption by free L. edodes indicated that after immobilization treatment, the capacity of L. edodes for Pb2+ and Cd2+ adsorption increased, and the adsorption ability for Pb2+ was stronger than Cd2+ by immobilized L. edodes. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 学科主题 | 微生物学 ; 土壤学 |
| 类目[WOS] | Engineering, Chemical ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | POLYVINYL-ALCOHOL PVA ; ALGINATE ; CELLS ; BIOSORPTION ; ADSORPTION ; SORPTION ; GEL |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000295919200013 |
| 公开日期 | 2011-09-07 |
| 源URL | [http://192.168.143.20:8080/handle/131551/3452]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Div & Control, Chengdu 610041, Peoples R China 2.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Univ Gdansk, Inst Environm Sci & Publ Hlth, Res Grp Environm Chem Ecotoxicol & Food Toxicol, PL-80952 Gdansk, Poland |
| 推荐引用方式 GB/T 7714 | Zhang, Dan,Zeng, Xuedan,Li, Wei,et al. Selection of optimum formulation for biosorbing lead and cadmium from aquatic solution by using PVA-SA's immobilizing Lentinus edodes residue[J]. DESALINATION AND WATER TREATMENT,2011,31(1-3):107-114. |
| APA | Zhang, Dan,Zeng, Xuedan,Li, Wei,He, Haijiang,Ma, Pei,&Falandysz, Jerzy.(2011).Selection of optimum formulation for biosorbing lead and cadmium from aquatic solution by using PVA-SA's immobilizing Lentinus edodes residue.DESALINATION AND WATER TREATMENT,31(1-3),107-114. |
| MLA | Zhang, Dan,et al."Selection of optimum formulation for biosorbing lead and cadmium from aquatic solution by using PVA-SA's immobilizing Lentinus edodes residue".DESALINATION AND WATER TREATMENT 31.1-3(2011):107-114. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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