首页|固定化细胞滤床和生物膜滤床净化二甲苯的比较

固定化细胞滤床和生物膜滤床净化二甲苯的比较

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Comparison of air-borne xylene biodegradation between immobilized-cell biofilter and biofilm attached biofilter
The Bacillus firmus was immobilized into Ca- alginate beads according to the different initial biomass concentration, calcification time and activation time. Three types of immobilized Bacillus firmus beads were packed respectively in trickling biofilter to purify xylene contained waste gases, and the performance of immobilized-cell biofilter was compared with traditional biofilm attached biofilter packed with two types of ceramic pellets. The results showed that three types of immobilized beads had different capabilities for removing xylene and life-spans. Higher initial biomass in immobilized beads resulted in better performance but shorter life-span. Activation process can remarkably enhance the activity of bacteria, and the removal efficiency of xylene can substantially be improved. Calcification time had influence on life-span of immobilized beads. Without acclimation, the cell-entrapped biofilter can obtain the maximum elimination capacity of 92.4 g/(m3·h). However, compared with biofilm attached biofilter, it has a poorer intrinsic drawback in volatile organic compounds (VOCs) removal due to the existence of excess mass transfer resistance.

immobilized-cell biofilter, biofilm attached biofilter, xylene, biodegradation.

刘强、刘学锦、AROWOLO E Babajide、安太成、傅家谟、盛国英

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School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200072, P. R. China

State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, P. R. China

immobilized-cell biofilter, biofilm attached biofilter, xylene, biodegradation.

国家自然科学基金Shanghai Leading Academic DisciplinesYouth Development Foundation of Shanghai Municipal Commission of Education

50608049T10504AC107

2007

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2007.11(5)
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