Abstract
The feasibility of hydrogen generation from palm oil mill effluent (POME), a high strength wastewater with high solid content, was evaluated in an anaerobic sequencing batch reactor (ASBR) using enriched mixed microflora, under mesophilic digestion process at 37 °C. Four different hydraulic retention times (HRT), ranging from 96 h to 36 h at constant cycle length of 24 h and various organic loading rate (OLR) concentrations were tested to evaluate hydrogen productivity and operational stability of ASBR. The results showed higher system efficiency was achieved at HRT of 72 h with maximum hydrogen production rate of 6.7 LH2/L/d and hydrogen yield of 0.34 LH 2/g CODfeeding, while in longer and shorter HRTs, hydrogen productivity decreased. Organic matter removal efficiency was affected by HRT; accordingly, total and soluble COD removal reached more than 37% and 50%, respectively. Solid retention time (SRT) of 4-19 days was achieved at these wide ranges of HRTs. Butyrate was found to be the dominant metabolite in all HRTs. Low concentration of volatile fatty acid (VFA) confirmed the state of stability and efficiency of sequential batch mode operation was achieved in ASBR. Results also suggest that ASBR has the potential to offer high digestion rate and good stability of operation for POME treatment.
| Original language | English |
|---|---|
| Pages (from-to) | 5912-5919 |
| Number of pages | 8 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 36 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - May 2011 |
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Keywords
- Anaerobic sequencing batch reactor (ASBR)
- Biohydrogen
- Hydraulic retention time (HRT)
- Palm oil mill effluent (POME)
- Solid retention time (SRT)
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
Cite this
Effect of hydraulic retention time on biohydrogen production from palm oil mill effluent in anaerobic sequencing batch reactor. / Badiei, Marzieh; Md Jahim, Jamaliah; Anuar, Nurina; Sheikh Abdullah, Siti Rozaimah.
In: International Journal of Hydrogen Energy, Vol. 36, No. 10, 05.2011, p. 5912-5919.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of hydraulic retention time on biohydrogen production from palm oil mill effluent in anaerobic sequencing batch reactor
AU - Badiei, Marzieh
AU - Md Jahim, Jamaliah
AU - Anuar, Nurina
AU - Sheikh Abdullah, Siti Rozaimah
PY - 2011/5
Y1 - 2011/5
N2 - The feasibility of hydrogen generation from palm oil mill effluent (POME), a high strength wastewater with high solid content, was evaluated in an anaerobic sequencing batch reactor (ASBR) using enriched mixed microflora, under mesophilic digestion process at 37 °C. Four different hydraulic retention times (HRT), ranging from 96 h to 36 h at constant cycle length of 24 h and various organic loading rate (OLR) concentrations were tested to evaluate hydrogen productivity and operational stability of ASBR. The results showed higher system efficiency was achieved at HRT of 72 h with maximum hydrogen production rate of 6.7 LH2/L/d and hydrogen yield of 0.34 LH 2/g CODfeeding, while in longer and shorter HRTs, hydrogen productivity decreased. Organic matter removal efficiency was affected by HRT; accordingly, total and soluble COD removal reached more than 37% and 50%, respectively. Solid retention time (SRT) of 4-19 days was achieved at these wide ranges of HRTs. Butyrate was found to be the dominant metabolite in all HRTs. Low concentration of volatile fatty acid (VFA) confirmed the state of stability and efficiency of sequential batch mode operation was achieved in ASBR. Results also suggest that ASBR has the potential to offer high digestion rate and good stability of operation for POME treatment.
AB - The feasibility of hydrogen generation from palm oil mill effluent (POME), a high strength wastewater with high solid content, was evaluated in an anaerobic sequencing batch reactor (ASBR) using enriched mixed microflora, under mesophilic digestion process at 37 °C. Four different hydraulic retention times (HRT), ranging from 96 h to 36 h at constant cycle length of 24 h and various organic loading rate (OLR) concentrations were tested to evaluate hydrogen productivity and operational stability of ASBR. The results showed higher system efficiency was achieved at HRT of 72 h with maximum hydrogen production rate of 6.7 LH2/L/d and hydrogen yield of 0.34 LH 2/g CODfeeding, while in longer and shorter HRTs, hydrogen productivity decreased. Organic matter removal efficiency was affected by HRT; accordingly, total and soluble COD removal reached more than 37% and 50%, respectively. Solid retention time (SRT) of 4-19 days was achieved at these wide ranges of HRTs. Butyrate was found to be the dominant metabolite in all HRTs. Low concentration of volatile fatty acid (VFA) confirmed the state of stability and efficiency of sequential batch mode operation was achieved in ASBR. Results also suggest that ASBR has the potential to offer high digestion rate and good stability of operation for POME treatment.
KW - Anaerobic sequencing batch reactor (ASBR)
KW - Biohydrogen
KW - Hydraulic retention time (HRT)
KW - Palm oil mill effluent (POME)
KW - Solid retention time (SRT)
UR - http://www.scopus.com/inward/record.url?scp=79955468114&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79955468114&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2011.02.054
DO - 10.1016/j.ijhydene.2011.02.054
M3 - Article
AN - SCOPUS:79955468114
VL - 36
SP - 5912
EP - 5919
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 10
ER -