| 固定化微生物柱处理染料废水试验中细菌的存活 |
| 摘要点击 874 全文点击 1232 投稿时间：1997-11-13 |
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| 中文关键词 固定化微生物 凹凸棒颗料 染料废水 脱色试验 |
| 英文关键词 immobilized microbe granulated Attapulgus dying wastewater decoloring test |
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| 中文摘要 |
| 以凹凸棒粘土颗粒为载体,混合固定化7株高效脱色菌,组装成固定化生物反应柱,进行各种染料废水的脱色试验。在试验各阶段,从柱体取出凹凸棒颗粒进行细菌存活检查。经过半年多的运行,最后能检测到初始固定化7种菌中的6种菌,说明本试验采用的固定化混合菌种及强制固定化优良菌株的方式是可行的。电镜检查表明,凹凸棒颗粒表面粗糙,具有孔洞、缝隙,是微生物生长的良好载体。固定化细菌主要在凹凸棒表面生长繁殖,也可在颗粒缝隙200μm深处生长,但由于氧气、养分的不足,颗粒缝隙由外至内,细菌数量逐渐减少,并发生变形. |
| 英文摘要 |
| A experimental system was set up for decoloring of dying wastewater.The key element of the system was the immobilized microbe column packed with granulated Attapulgus clay (3—5mm) on which 7 strains were immobilized.Bacteria survival was checked during the different period of the experiment.At the beginning seven strains were immobilized on Attapulgus,six of them were found alive after six months of running.That means the method of immobilization in this work is effective and feasible for practical use.The test by electron micrograph showed that Attapulgus with big specific surface area is good carrier for immobilized microbe and bacteria lived mainly on surface of Attapulgus.They could survive even in depth of 200μm inside the holes or gaps in Attapulgus,but change of bacteria in shape was found and the population was gradually decreasing from surface to inside the holes due to deficiency of oxygen and nutriment. |
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