The effect of HRT on biohydrogen production from acid hydrolyzed waste wheat in a continuously operated packed bed reactor

Kirli B., KARAPINAR İ.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.43, sa.23, ss.10678-10685, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 23
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.ijhydene.2018.01.175
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.10678-10685
  • Anahtar Kelimeler: Biohydrogen, Dark fermentation, Hydraulic retention time, Packed bed, Waste wheat, FERMENTATIVE HYDROGEN-PRODUCTION, HYDRAULIC RETENTION TIME, ANAEROBIC SLUDGE, LIGNOCELLULOSIC BIOMASS, DARK FERMENTATION, IMMOBILIZED CELL, FLUIDIZED-BED, BIOREACTOR, OPTIMIZATION, PRETREATMENT
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Biohydrogen production in a continuously operated up flow packed bed reactor was investigated at different hydraulic retention time (HRT) varying between 2 h and 13 h scouring sponge pad. The substrate was sugar solution obtained from hydrolysis of waste wheat at pH = 2 and 90 degrees C in an autoclave for 15 min. Experimental results indicated that hydrogen production volume and yield increases with decreasing HRT. The highest volumetric hydrogen production rate and yield were obtained as VHPR = 1.75 L H-2/L d and Y-H2 = 1.6 moL H-2/mol TS, respectively, at HRT = 2 h. Yields and rates at HRT = 2 h were almost two times of that obtained at HRT = 13 h. It can be concluded that metal mesh covered plastic scouring sponge pad is a suitable microorganism support particle to obtain high hydrogen yield and rate at short HRTs by dark fermentation. (C) 2018 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.