Jang Jong Hee, Hirai Mitsuyo, Shoda Makoto
Chemical Resources Laboratory, Tokyo Institute of Technology, R1-29-4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
J Biosci Bioeng. 2005 Sep;100(3):297-302. doi: 10.1263/jbb.100.297.
Styrene removal was studied for 3 months in a laboratory-scale biofilter packed with a mixed packing material of peat and ceramic at a ratio of 1 to 1 on a dry-weight basis and inoculated with Pseudomonas sp. SR-5. More than 90% removal efficiency (RE) was attained at 1-140 g/m3/h styrene loads under nitrogen-source limitation. When RE decreased to 70% after 30 d with an increase in styrene load, readdition of SR-5 and washing of the filter packing material restored the RE to more than 90% by maintaining the population of SR-5 at 1-10% of the total cell number. The maximum elimination capacity (EC) by kinetic analysis was estimated to be 290 g/m3/h. High conversion of the removed styrene carbon to CO2, and significantly small production of cell mass from the removed carbon were confirmed.
在实验室规模的生物滤池中研究了苯乙烯去除情况，该生物滤池填充了泥炭和陶瓷按干重比1:1混合的填料，并接种了假单胞菌属SR-5。在氮源限制下，苯乙烯负荷为1-140 g/m³/h时，去除效率（RE）超过90%。当苯乙烯负荷增加30天后RE降至70%时，重新添加SR-5并清洗滤池填料，通过将SR-5的数量维持在总细胞数的1-10%，可使RE恢复到90%以上。通过动力学分析估计最大去除能力（EC）为290 g/m³/h。证实了去除的苯乙烯碳向CO₂的高转化率，以及从去除的碳中产生的细胞量显著减少。
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