[Removal of mixed waste gases by the biotrickling filter].
A biotrickling filter (BTF) was designed for treating mixed waste gases, which contained hydrogen sulfide (H2S), tetrahydrofuran (THF) and dichloromethane (DCM) at the start-up and steady states. The removal efficiency of H2S and DCM could maintain about 99% and 60%, respectively, and the removal efficiency of DCM was reduced from 90% to 37% with the shortening empty bed retention time (EBRT) form 50 to 20 seconds when the inlet concentrations were 200, 100, 100 mg x m(-3) of H2S, THF, DCM, respectively. In the theoretical study, the biodegradation efficiency of contaminants was H2S > THF > DCM by analyzing the Michaelis-Menten Dynamic model.
Xinchang Pharmaceutical Factory, Zhejiang Medicine Co., Ltd., Shaoxing 312500, China. zhangdf@xcpharma.com
Ding-Feng
DF
Zhang
Jun-Yi
JY
Fang
Jie-Xu
JX
Ye
Song-Kai
SK
Qiu
Dong-Sheng
DS
Qian
Qi-Zhou
QZ
Dai
Dong-Zhi
DZ
Chen
D001419:Bacteria / Q000378:metabolism; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D004345:Drug Industry; D005374:Filtration / Q000379:methods*; D005663:Furans / Q000302:isolation & purification / Q000378:metabolism; D005740:Gases / Q000737:chemistry* / Q000302:isolation & purification; D006862:Hydrogen Sulfide / Q000302:isolation & purification* / Q000378:metabolism; D007220:Industrial Waste / Q000517:prevention & control; D007700:Kinetics; D008752:Methylene Chloride / Q000302:isolation & purification / Q000378:metabolism; D018505:Waste Management / Q000379:methods
D005663:Furans; D005740:Gases; D007220:Industrial Waste; C018674:tetrahydrofuran; D008752:Methylene Chloride; D006862:Hydrogen Sulfide