摘要
以模拟的甲苯废气为目标污染物,探究生物滴滤(biological trickle filter, BTF)系统在室温条件下空白系统、启动挂膜以及稳定运行3个阶段进气浓度、进气量及营养液喷淋速率对甲苯去除效率(η)的影响。研究结果表明:在空塔试运行下,甲苯进出口浓度差<3%,空白系统各因素下甲苯吸附效率在3%~5%之间,对后续系统运行的影响可忽略不计。BTF系统在进气量15 L/min、进气浓度100~300 mg/m3及营养液喷淋速率60 mL/min的条件下,活性污泥挂膜时间<30 d;当进气浓度增加至500 mg/m3,η>90%。系统稳定运行结果表明,随着进气量和进气浓度的增大,η略微下降;当进气量为5~25 L/min、进气浓度为100~1 000 mg/m3,η> 85%;当营养液喷淋速率在10~100 mL/min,η稳定在95%左右。
At room temperature, the simulated toluene exhaust gas was used as the target pollutant, and the effect of toluene intake concentration, the intake air amount and the nutrient solution spray rate to toluene removal efficiency(η) were investigated in the three stages of the blank system, the start-up membrane and the stable operation of biological trickle filter(BTF) system. The results show that under the empty tower test operation, the difference of toluene inlet and outlet concentration is less than 3%, and the adsorption efficiency of toluene is between 3% and 5% under various factors of blank system, which has negligible impact on the subsequent system operation.When BTF system has an intake air volume of 15 L/min, an intake air concentration of 100~300 mg/m3 and a nutrient solution spray rate of 60 mL/min, the activated sludge filming time is less than 30 d. The gas concentration increases to 500 mg/m3, η is over 90%.During the stable operation phase of the system, η gradually decreases with the increase of the intake air amount and the toluene intake concentration;when the intake air amount is 5~25 L/min and the intake air concentration is 100~1 000 mg/m3, η is more than 85%;changing the spraying rate of nutrient solution to 10~100 mL/min, η is approximately stable at 95%.
作者
高亭
戴珏
关杰
王晓璞
朱秋杰
范丹丹
王冠
GAO Ting;DAI Jue;GUAN Jie;WANG Xiaopu;ZHU Qiujie;FAN Dandan;WANG Guan(School of Environmental and Material Engineering,Shanghai Polytechnic University, Shanghai 201209, China;Resource Recycling Science and Engineering Center,Shanghai Polytechnic University, Shanghai 201209, China;College of Civil Engineering and Architecture,Hebei University, Baoding, Hebei 071002, China)
出处
《上海第二工业大学学报》
2019年第2期90-96,共7页
Journal of Shanghai Polytechnic University
基金
上海市高原学科–环境科学与工程(资源循环科学与工程)
上海第二工业大学培育学科建设项目(EGD18YJ0029)
上海第二工业大学研究生项目基金(EGD17YJ003)资助
上海市联盟计划-难题招标专项(LM201857)
关键词
生物滴滤系统
甲苯
启动挂膜
稳定运行
去除效率
biological trickle filter system
toluene
film forming start up
stable operation
removal efficiency
