Anaerobic Treatability of Wastewater Contaminated with Propylene Glycol


Sezgin N. , Tonuk G. U.

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, cilt.91, ss.320-323, 2013 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 91 Konu: 3
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s00128-013-1063-y
  • Dergi Adı: BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
  • Sayfa Sayıları: ss.320-323

Özet

The purpose of this study was to investigate the biodegradability of propylene glycol in anaerobic conditions by using methanogenic culture. A master reactor was set up to develop a culture that would be acclimated to propylene glycol. After reaching steady-state, culture was transferred to serum bottles. Three reactors with same initial conditions were run for consistency. Propylene glycol was completely biodegradable under anaerobic methanogenic conditions. Semi-continuous reactors operated at a temperature of 35A degrees C had consistently achieved a propylene glycol removal of higher than 95 % based on chemical oxygen demand (COD). It was found that in semi-continuous reactors, anaerobic treatment of propylene glycol at concentrations higher than 1,500 mg COD m(-3) day(-1) was not convenient due to instable effluent COD.

The purpose of this study was to investigate the biodegradability of propylene glycol in anaerobic conditions by using methanogenic culture. A master reactor was set up to develop a culture that would be acclimated to propylene glycol. After reaching steady-state, culture was transferred to serum bottles. Three reactors with same initial conditions were run for consistency. Propylene glycol was completely biodegradable under anaerobic methanogenic conditions. Semi-continuous reactors operated at a temperature of 35°C had consistently achieved a propylene glycol removal of higher than 95 % based on chemical oxygen demand (COD). It was found that in semi-continuous reactors, anaerobic treatment of propylene glycol at concentrations higher than 1,500 mg COD m−3 day−1 was not convenient due to instable effluent COD.