Performance evaluation and kinetic parameter analysis for static granular bed reactor (SGBR) for treating poultry slaughterhouse wastewater at mesophilic condition

In South Africa, the poultry product industry consumes a significant quantity of potable water ranging from 4.2 to 16.7 m3 per tonne of live carcass weight for slaughtering and processing of birds including for cleaning and sanitising of equipment (Park et al., 2012). The wastewater volumes generated from the poultry slaughterhouse ranges from 2.0 to 5.1 L per tonne of live weight kill (LWK) with an average of 3.9 m3 per tonne LWK (Oh, 2012). This results in the generation of a large volume of wastewater, which contains a high concentration of organic matter quantifiable as biochemical oxygen demand (BOD5) and/or total chemical oxygen demand (tCOD). The objectives of this part of the study was to: evaluate the COD removal rate of the SGBR reactor in treating PSW; evaluate the effect of organic loading rates on process performance of the SGBR and determine the bio-kinetic parameters, which can be used to predict COD removal from the SGBR using Grau second order and modified Stover-Kincannon models