International Journal of Applied Environmental Sciences

  • Year: 2009
  • Volume: 4
  • Issue: 3

Combined COD & Nutrients Removal from Slaughter-house Wastewater in a Sequencing Batch Reactor

  • Author:
  • Koushik Paul
  • Total Page Count: 15
  • DOI:
  • Page Number: 347 to 361

BIT Mesra, Ranchi, Civil Engineering Department, (former student of Jadavpur University, Kolkata), E-mail: koushik_p77@yahoo.co.in.

Abstract

The objective of the project was to investigate the performance of the laboratory scale sequencing batch reactor(SBR) for combined removal of soluble organics and nutrients (nitrogen and phosphorus) from slaughter-house wastewater by varying D.O. and design parameters like dilution factor, filling time, cycle time, anoxic/anaerobic sequence and anoxic/anaerobic time phase. Good denitrification was obtained in all the runs performed. The SBR was found to perform well with respect to EBPR (enhanced biological phosphorus removal) for slaughter-house waste-water upon adding sodium acetate as an RBCOD, thus increasing the SCOD/TKN (soluble-COD/Total Kjeldahl Nitrogen) ratio.

Keywords

Sequencing Batch Reactor(SBR), soluble fraction of COD (SCOD), readily biodegradable COD (RBCOD), enhanced biological phosphorus removal (EBPR), COD/TKN ratio, COD/TP ratio, Simultaneous Nitrification and Denitrification(SND)