Table 8.11
Results of comparative studies on culture pretreatments
Type of culture
Substrate
Maximum H
2 yield
(mol/mol substrate) Reported treatment trend
References
Municipal aeration tank
culture
Corn stover
hydrolysate
5.0
Heat > acid > base > ultrasonic > ultraviolet
[235]
Anaerobic granulated
sludge
Palm oil mill
effluent
19.5
1
Heat > base > chloroform
¼ acid > freezing-thawing > control
[236]
Anaerobic digested sludge
Glycerol
0.05
2
Wet heat > dry heat > freezing-thawing > control > acid > base
[237]
Anaerobic digested mixed
culture
Dairy wastewater
0.032
1
BESA > acid + BESA > acid + heat > acid + heat + BESA,
heat + BESA > acid
[220]
Notes
(1) The units of H
2 yield
¼ mmol H
2 /g COD. (2) The units of H
2 yield
¼ mol H
2 /g glycerol. (3) BESA
¼ 2-bromoethanesulfonic acid
8 Biohydrogen of Industrial Waste
353