| 流动系统内生物膜的形成及控制 |
| 摘要点击 1232 全文点击 1451 投稿时间：1999-03-03 |
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| 中文关键词 细菌固定 水力剪切力 辐射流动室 硝化细菌 |
| 英文关键词 bacteria adhension hydraulic shear stress radical flow chamber nitrifying bacteria |
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| 中文摘要 |
| 应用辐射流动室(RadicalFlow Cham ber,RFC)技术定量地研究了水力剪切力对硝化细菌在聚苯乙烯(PS)载体表面固定的影响,发现水力剪切力直接影响硝化细菌的固定。当作用于PS表面的水力剪切力大于8.0N/m2 时,硝化细菌基本不能在PS表面附着;水力剪切力小于8.0N/m2 时,硝化细菌的固定程度随剪切力的减小而得到加强,直至达到最大。实验表明辐射流动室技术为定量研究生物膜形成及控制与水力剪切力间的关系提供了手段。 |
| 英文摘要 |
| This paper quantitatively studied the effect of hydraulic shear stress on adhesion of nitrifying bacteria on PS surface using Radical Flow Chamber.It was found that hydraulic shear stress closely affected adhesion of nitrifying bacteria.As the hydraulic shear stress was greater than 8.0N/m2,nitrifying bacteria were not able to adhere to PS surface.When the hydraulic shear stress exerted on PS surface was less than 8.0N/m2,adhesion of nitrifying bacteria was increased up to its maximum with decreasing the hydraulic shear stress.Experiments show that Radical Flow Chamber technique provides a mean for study of quantitative relation between bacteria adhesion and hydraulic shear stress in a flowing system. |
