[(massSCOD/d)effluent− (massSCOD/d)influent]/ [(massPCOD/d)influent− (massPCOD/d)effluent] (1) [(massVFA/d)effluen− (massVFA/d)influent]/ [(massSCOD/d)effluen− (massSCOD/d)influent] (2)
the samples were also analyzed according to the Standard
Methods .The hydrolysis rate and VFA productionrate were calculated
by Eqs. (1) and (2)respectively.
chromatography .The mixed liquors were intermittently taken
from both the flow-through and the retention reactor, and the
properties, including pH, alkalinity, COD, VSS, VS, and TS, of
Experimental Apparatus
Gas sampling pot
Biogas Activating reactor
Sludge tank Insutation
Heating Coil Thermophilic fermenter
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Efluent
Analysis and Calculations
fermentation system with stable hydrogen production by heat
treatment, and with high yield of hydrogen by adopting
thermophilic condition.
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Materials and Methods
and to increase the hydrolysis of particulate organics in sewage
sludge
。
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Introduction
Commercial hydrogen is almost produced from steam
reforming of natural gases and gasification of coal, but these
require high-energy inputs obtained from non-renewable
resources .With both advantages of hydrogen production and
stabilization of organic waste, the anaerobic fermentation is
Retention Times (HRTs) ranged from 1 to 5 days. The heat
treatment of the fermenting sludge using the boiling retention
vessel was an effective to select hydrogen producing bacteria,
Biohydrogen Production from Sewage Sludge Using a Continuous Hydrogen
Fermentation System with a Heat Treatment Vessel
KSCE Journal of Civil Engineering (2010) 14(5):673-679
heat treatment, was studied for enhanced continuous hydrogen
fermentation using sewage sludge. The performance of the
hydrogen fermentation system was tested at various Hydraulic
a flow rate of 40 mL/min, and the temperatures of theinjector, detector,
and column were 80, 90, and 50oC, respectively.The volatile fatty acid
levels and their compositions were analyzed by high-performance liquid
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Abstract：
An anaerobic hydrogen fermentation system with a
thermophilic flow-through reactor (55oC) for hydrogen
production and a boiling retention vessel (100oC) for continuous
relatively an efficient and inexpensive method compared to the
physicochemical methods for hydrogen production .The objective
of the study is to develop a continuous anaerobic hydrogen
Biogas production was monitored daily, and its composition was
analyzed by a gas chromatograph equipped with a thermal conductivity detector To analyze the methane and carbon dioxide in the biogas. with