NDLI: Long Term Operation of Biological Hydrogen Production in Anaerobic Sequencing Batch Reactor (ASBR)

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Long Term Operation of Biological Hydrogen Production in Anaerobic Sequencing Batch Reactor (ASBR)

Content Provider	Semantic Scholar
Author	Jeong, Seong-Jin Lee, Teang Shui
Copyright Year	2013
Abstract	Long term hydrogen production was investigated in an anaerobic sequencing batch reactor (ASBR) using mixed microflora. Glucose (about 8,250 mg/L) was used as a substrate for the ASBR operation under the condition of pH 5.5 and 37°C with mixing at 150 rpm. The experiment was carried out over a period of 160 days. Hydrogen yield was 0.8 mol H2/mol glucose with F/M ratio 2 at initial operation period. The hydrogen yield reached to maximum 2.6 mol H2/mol glucose at 80th day operation. However decreased hydrogen yield was observed after 80 days operation and eventually no hydrogen yield. Although well-known hydrogen producer Clostridium sp. was detected in the reactor by PCR-DGGE analysis, changed reactor operation was the major reason of the decreased hydrogen production, such as low F/M ratio of 0.5 and high propionic acid concentration 2,130 mg/L. Consequently the long period operation resulted in MLSS accumulation and then low F/M ration stimulating propionic acid formation which consumes hydrogen produced in the reactor.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF HTM / HTML
DOI	10.4491/KSEE.2013.35.1.001
Volume Number	35
Alternate Webpage(s)	http://www.jksee.or.kr/upload/pdf/KSEE_1_2013_01_1.pdf
Alternate Webpage(s)	http://210.101.116.28/W_files/kiss2/04713595_pv.pdf
Alternate Webpage(s)	https://doi.org/10.4491/KSEE.2013.35.1.001
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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