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化学工业与工程
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��ѧ��ҵ�빤�� 2006, Vol. 23 Issue (6) :520-522    DOI:
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��������-����������ʯ�������Rhodococcus sp. H-412
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Sodium Alginate and Diatomite as Entrapping Agents for Immobilizing the Desulfurization Bacteria of Rhodococcus sp. H-412
HAN Zhen-wei~(1,2),YAN Hai-yan~(1,2)(1.National Engineering Research Center of Distillation Technology,Tianjin 300072,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
(1,2),YAN Hai-yan~(1,2)(1.National Engineering Research Center of Distillation Technology,Tianjin 300072,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China
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ժҪ ������̶����о����������������ƹ�Ӧ�þ�����Ҫ�����塣������ʵ����ɸѡ�ġ�����4S�����л;����Rhodococcus sp.H-412Ϊ�о�����,���������(DBT)Ϊ����߻�����ģ�⻯����,�����������Rhodococcus sp.H-412�Ĺ̶�������������ʹ������������������:�ڽ����¶�Ϊ4��,�������Ȼ�����ҺŨ��Ϊ0.10 mmol/L,����������������Ϊ3.0%,��Ӽ���������������Ϊ1.0%,������(����ʪ�ءý������)Ϊ1��20��������,��8��ҽ����ͷ����,���Եõ����нϸߵ�������ԡ��ϺõĻ�еǿ�Ⱥʹ������ܵĹ̶���ϸ���������̶���ϸ���������ϸ������,���нϸߵ��¶���Ӧ�����ͽϿ��pH��Ӧ��Χ��
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Abstract�� Immobilization of the desulfurizing bacteria is very important for the application of biodesulfurization technology.The Rhodococcus sp.H-412 screened by ourselves in the lab,which possessed the 4S desulfurization metabolic route,was chosen as the target.Conditions of its immobilization and application were main analyzed by using DBT as a model compound.The experiment results indicated that the immobilized cell had the optimum desulfurization effect under the conditions of 3.0% sodium alginate(SA) as carrier,1.0% diatomite as additive,the ratio of SA(mL) to cell(g) being 20,cross-linking at 4 �� with 0.10 mmol/L calcium chloride as cross-linking agent.Compared with free bacteria,the immobilized cell was able to endure higher temperature and adapt to wider range of pH.
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Received 2006-11-15; published 2006-11-15
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����Ϊ;�Ժ���;.��������-����������ʯ�������Rhodococcus sp. H-412[J].  ��ѧ��ҵ�빤��, 2006,23(6): 520-522
HAN Zhen-wei~.Sodium Alginate and Diatomite as Entrapping Agents for Immobilizing the Desulfurization Bacteria of Rhodococcus sp. H-412[J].  Chemcial Industry and Engineering, 2006,23(6): 520-522
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