Jang Jong Hee, Hirai Mitsuyo, Shoda Makoto
Chemical Resources Laboratory, Tokyo Institute of Technology, R1-29-4259 Nagatsuta, Yokohama 226-8503, Japan.
J Biosci Bioeng. 2006 Jul;102(1):53-9. doi: 10.1263/jbb.102.53.
The styrene-degrading bacterium Pseudomonas sp. SR-5 exhibited a high styrene removability in a biofilter. However, the styrene removal efficiency (RE) of SR-5 decreased with time. We carried out styrene gas removal in a biofilter inoculated with mixed cultures of SR-5 and other microorganisms to determine the possibility of obtaining an enhanced RE for a long period. The following three inocula were carried out: (i) styrene-degrading bacteria, strains 1 and 3, (ii) a benzoic acid-degrading bacterium Raoultella sp. A, and (iii) wastewater from a chemical company dealing with styrene. These biofilters with mixed SR-5 showed an enhanced RE compared with those with a single culture of SR-5. The complete styrene elimination capacities for ensuring 100% styrene removal in those mixed cultures were 151, 108 and 124 g/m(3)/h, compared with a single culture of SR-5.
降解苯乙烯的细菌假单胞菌属SR-5在生物滤池中表现出较高的苯乙烯去除能力。然而，SR-5的苯乙烯去除效率（RE）随时间下降。我们在接种了SR-5和其他微生物混合培养物的生物滤池中进行苯乙烯气体去除实验，以确定长期获得提高的去除效率的可能性。进行了以下三种接种：（i）降解苯乙烯的细菌菌株1和3，（ii）降解苯甲酸的细菌拉乌尔菌属A，以及（iii）来自一家处理苯乙烯的化工公司的废水。与单一培养SR-5的生物滤池相比，这些含有混合SR-5的生物滤池表现出提高的去除效率。与单一培养SR-5相比，在那些混合培养物中确保100%苯乙烯去除的完全苯乙烯消除能力分别为151、108和124 g/m³/h。
