Park D W, Kim S S, Haam S, Ahn I S, Kim E B, Kim W S
Department of Chemical Engineering, College of Engineering, Yonsei University, Seodaemoon-ku, Seoul, Korea.
Environ Technol. 2002 Mar;23(3):309-18. doi: 10.1080/09593332508618411.
The biodegradation of toluene by biofiltration inoculated with Pseudomonas putida DK-1 was investigated with variation of the several environmental parameters, such as temperature, bed length, gas flow rate and optimal humidity zone. The optimal temperature range to treat toluene gas was found to be 32-35 degrees C. Increasing the gas flow rate showed an inverse effect on the elimination capacity and the removal efficiency. The optimal gas flow rate was obtained at 65 ml min(-1) from the relation between the removal efficiency and the elimination capacity. The biodegradation rate of the toluene with respect to the bed lengths (3, 6, 9, 12 and 15 cm) increased up to 80 h but was then independent of the bed lengths after 80 h except for the 3 cm bed length. The elimination capacity was improved by about 70% compared with that reported in other literature and was also in agreement with theoretical models.
研究了接种恶臭假单胞菌DK-1的生物滤池对甲苯的生物降解情况，并考察了温度、滤床长度、气体流速和最佳湿度范围等几个环境参数的变化。发现处理甲苯气体的最佳温度范围为32-35摄氏度。气体流速的增加对去除能力和去除效率有相反的影响。根据去除效率和去除能力之间的关系，在65毫升/分钟时获得了最佳气体流速。甲苯相对于滤床长度（3、6、9、12和15厘米）的生物降解率在80小时内增加，但80小时后除3厘米滤床长度外，与滤床长度无关。与其他文献报道相比，去除能力提高了约70%，并且也与理论模型相符。
