Volume No. 9 Issue No.: 2 Page No.: 342 -347 October-December 20

 

HYDROGEN PRODUCTION FROM DISTILLERY WASTEWATER USING AN ANAEROBIC SEQUENTIAL BATCH REACTOR

 

Raman Preet* and Kaushik Anubha

1. Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, Haryana (INDIA) 2. University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi (INDIA)

 

Received on : July 10, 2014

 

ABSTRACT

 

Molecular hydrogen (H2) production with simultaneous wastewater treatment was studied in periodic sequencing batch reactor by continuous stirring of the substrate under anaerobic conditions. The bioreactor was operated at mesophilic temperature of 37.5oC at pH 6.5 with a total cycle period of 24h comprising Fill (30 min), React (23 h) and Decant (30 min) phases. Distillery wastewater having chemical oxygen demand of 1, 42000 mg/L was used as a substrate. Anaerobic mixed consortium from the wastewater treatment tank of distillery was used as inoculum. Hydrogen production rates with simultaneous increase in concentration of VFA’s during the six consecutive cycles declined from 238.16 to 18.50 ml/L/d. Replacement of half of the degraded substrate by fresh substrate in the next cycle leads to reduction in hydrogen formation in the system, due to over acidification of system by the Volatile Fatty Acids (VFAs) and the related changes in microbial activity and degrading products in the bioreactor produced in the previous batch cycle.

 

Keywords : Hydrogen, Wastewater, Bioreactor, Inoculums, Fermentation

 

 

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