| Study on the Flocculability of Metal Ions by Bacillus Mucilaginosus GY03 Strain |
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| 作者姓名： | 连宾 陈烨 袁生 朱立军 刘丛强 |
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| 作者单位： | Key Laboratory of Microbial Engineering College of Life Sciences，Nanjing Normal University，College of Chemistry and Bio-engineering，Guizhou University of Technology，Key Laboratory of Microbial Engineering College of Life Sciences，Nanjing Normal University，College of Chemistry and Bio-engineering，Guizhou University of Technology，State Key Laboratory of Environmental Geochemistry，Institute of Geochemistry，Chinese Academy of Sciences Nanjing 210097，China，College of Chemistry and Bio-engineering，Guizhou University of Technology，Guiyang 550003，China，Guiyang 550003，China，Nanjing 210097，China，Guiyang 550003，China，Guiyang 550002，China |
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| 基金项目： | State Key Lab.of Environmental Geochemistry Foundation of Chinese Academy of Sciences，中国博士后科学基金 |
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| 摘 要： | Inrecentyears,withtherapiddevelopmentofindustrialeconomy ,wastewaterisdischargedinhugevolumeandtheaccumulationofheavymetalionsinsoilsandwatersourcesisspeededuprapidly .Asaresult,waterpollutionhasbecomeadailydeterioratingproblem .Heavymetalsareeasytoenterthefoodchain ,therebyconstitutingagreatthreattothehealthofanimalsandhu manbeings .Therefore,howtoeffectivelyhandleheavymetalpollutionhasbecomeacommonat tractionformankind .Theroutineheavymetaltreatmentmethodsaremainlythechemical,phys icalandphy…
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Study on the Flocculability of Metal Ions by Bacillus Mucilaginosus GY03 Strain |
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| LIAN Bin ,CHEN Ye ,YUAN Sheng ,ZHU Lijun ,and LIU Congqiang.Study on the Flocculability of Metal Ions by Bacillus Mucilaginosus GY03 Strain[J].Chinese Journal of Geochemistry,2004,23(4). |
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| Authors: | LIAN Bin CHEN Ye YUAN Sheng ZHU Lijun and LIU Congqiang |
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| Institution: | LIAN Bin 1,2),CHEN Ye 2),YUAN Sheng 1),ZHU Lijun 2),and LIU Congqiang 3) 1) |
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| Abstract: | This study deals with the flocculability of two types of metal ions by Bacillus mucilaginosus GY03 Strain, with an emphasis on the influence of pH conditions, volume and time of flocculants produced by GY03 Strain on the adsorption of metal irons such as Pb 2 and Mn 2 and the capabilities of flocculants to adsorb metal ions of different concentrations. The results showed that microbial flocculants produced by Bacillus mucilaginosus GY03 Strain are highly capable of flocculating metal ions, but show different effectiveness with respect to the adsorption of Pb 2 and Mn 2. In accordance with the experimental data and actual waste-water treatment conditions, the relevant regression equation of flocculation has been deduced, which has found some application in practice. The experimental results of this study demonstrated that microbial flocculants produced by Bacillus mucilaginosus can be used to treat metallic ion-containing waste water. In practical application the volume of microbial flocculants required and flocculation conditions should be taken into comprehensive consideration in accordance with the properties of metal ions, the composition of anions and the solubility of other metals, in combination with the cost and effectiveness of flocculants to be used. Flocculant used in this experiment has the advantages of being applied over a wide range of pH values, small flocculant volume, and rapid speed of flocculation. So this kind of flocculant is within excellent prospect of application. |
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| Keywords: | microbial flocculant Bacillus mucilaginosus silicate bacterium flocculability waste-water treatment |
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