Mesophilic biohydrogen production by Clostridium butyricum CWBI 1009 in 1 trickling biofilter reactor
نویسندگان
چکیده
14 This study investigates the mesophilic biohydrogen production from glucose using a strictly 15 anaerobic strain, Clostridium butyricum CWBI1009, immobilized in a trickling bed sequenced 16 batch reactor (TBSBR) packed with a Lantec HD Q-PAC ® packing material (132 ft2/ft3 specific 17 surface). The reactor was operated for 62 days. The main parameters measured here were 18 hydrogen composition, hydrogen production rate and soluble metabolic products. pH, 19 temperature, recirculation flow rate and inlet glucose concentration at 10 g/l were the controlled 20 parameters. The maximum specific hydrogen production rate and the hydrogen yield found from 21 this study were 146 mmol H2/L.d and 1.67 mol H2/mol glucose. The maximum hydrogen 22 composition was 83%. Following a thermal treatment, the culture was active without adding 23 fresh inoculum in the subsequent feeding and both the hydrogen yield and the hydrogen 24
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