| 微生物絮凝剂絮凝机理和絮凝形态的研究 |
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| 引用本文： | 袁辉洲,王志. 微生物絮凝剂絮凝机理和絮凝形态的研究[J]. 桂林电子科技大学学报, 2009, 29(3): 268-271 |
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| 作者姓名： | 袁辉洲 王志 |
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| 作者单位： | 深圳职业技术学院建筑与环境工程学院,广东深圳,518055;湖南大学土木工程学院,湖南长沙,410082 |
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| 基金项目： | 深圳职业技术学院科技发展基金 |
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| 摘 要： | 微生物絮凝剂高产菌株G15是本实验室分离、筛选和优化培养的优质菌株.为了进一步探讨该微生物絮凝剂的絮凝机理和絮凝形态,设计实验对该微生物絮凝剂的活性、热稳定性、絮凝过程中ζ电位的变化以及絮体的微观形态进行了深入研究.研究结果表明:该菌种所产絮凝活性成分主要为细胞的代谢产物,具有较强的热稳定性;在4g/L高岭土悬浊液中加入G15菌株产生的絮凝剂后,其℃电位从-36.27 mV显著上升至-12.97 mV,絮凝机理主要为压缩双电层和吸附架桥;从显微镜絮体照片可以看出,该絮体颗粒较大且结构密实,沉降性能良好,并且在形态上具有明显的分形特征.
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| 关 键 词： | 微生物絮凝剂 絮凝活性 絮凝形态 ζ电位 |
Flocculating Mechanics and Flocculation Morphology of Bioflocculant |
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| YUAN Hui-zhou,WANG Zhi. Flocculating Mechanics and Flocculation Morphology of Bioflocculant[J]. Journal of Guilin University of Electronic Technology, 2009, 29(3): 268-271 |
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| Authors: | YUAN Hui-zhou WANG Zhi |
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| Affiliation: | 1.School of Building & Environment Engineering;Shenzhen Polytechnic;Shenzhen 518055;China;2.School of Civil Engineering;Hunan University;Changsha 410082;China |
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| Abstract: | Experiments of flocculating mechanics and flocculation morphology were conducted using the high-bioflocculant to produce strain G15 which was isolated,screened,optimized and cultivated by our laboratory.The mechanisms of bioflocculant coagulation were observed and analyzed.The results showed that the active components of the Bioflocculant Produced by G15(BPG15) exist in deposition after centrifugation.The BPG15 has fairly better heat stability.The Zeta potential of colloidal particles in Kaolin suspending s... |
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| Keywords: | bioflocculant flocculating activity flocculation morphology Zeta potential |
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