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گواهی نمایه سازی مقاله Study of immobilized and free Thiobacillus thioparus capability for detection of hydrogen sulfide

عنوان مقاله: Study of immobilized and free Thiobacillus thioparus capability for detection of hydrogen sulfide
شناسه (COI) مقاله: ICHEC07_431
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال ۱۳۹۰
مشخصات نویسندگان مقاله:

Maryam Mirzaei - Department of Chemical Engineering, Faculty of Engineering, University of Tehran, P.O. Box 11155-4563,Tehran, Iran Research Center for New Technologies in Life Science Engineering, University of Tehran, P.O. Box 63894- 14179, Tehran, Iran
Ghasem Amoabediny - Department of Chemical Engineering, Faculty of Engineering, University of Tehran, P.O. Box 11155-4563,Tehran, Iran Research Center for New Technologies in Life Science Engineering, University of Tehran, P.O. Box 63894- 14179, Tehran, Iran Department of Li
Hamid Rashedi - Department of Chemical Engineering, Faculty of Engineering, University of Tehran, P.O. Box 11155-4563,Tehran, Iran Research Center for New Technologies in Life Science Engineering, University of Tehran, P.O. Box 63894- 14179, Tehran, Iran
Fatemeh Yazdian - Department of Chemical Engineering, Faculty of Engineering, University of Tehran, P.O. Box 11155-4563,Tehran, Iran Research Center for New Technologies in Life Science Engineering, University of Tehran, P.O. Box 63894- 14179, Tehran, Iran Department of Li

خلاصه مقاله:
The microbial immobilization method using polyvinyl alcohol (PVA) gel as an immobilizing material was used for entrapment of Thiobacillus thioparus, a sulfide oxidizer bacterium. The immobilized beads and free cells of Thiobacillus thioparus were applied to a system in which hydrogen sulfide was produced. As H2S was consumed by the bacteria, the content of dissolved oxygen was decreased and this reduction was determined by use of an O2 electrode. Theimmobilized system showed a lag time in detection of hydrogen sulfide because of the resistance which is caused by the matrix of poly vinyl alcohol. The reduction rate of oxygen was also calculated and it was shown that consumption rate of hydrogen sulfide in immobilized system is more uniform than free cell system. H2S was used in 10 ppm and 20 ppm concentration.

کلمات کلیدی:
immobilization, free cell, Thiobacillus thioparus, poly vinyl alcohol

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