Abstract:
—Discharge of untreated poultry processing wastewater
(PPWW) causes various environmental pollution issues in the re ceiving environment of water, land, and air. Treatment and disposal
of PPWW in compliance with disposal norms is one of the main
concerns of poultry meat production industries in Sri Lanka. In
many countries, PPWW is treated using either Anaerobic Biological
Treatments (ANERBTs) incorporated with energy recovery or Aero bic Biological Treatments (AERBTs) and discharged into municipal
sewage systems for further treatment. The primary aim of this paper
is to estimate organic strength characteristics (OSCs) of untreated
PPWW in terms of COD and to provide an overview of the existing
treatment technologies, its compatibility, and treated wastewater
(TWW) disposal practices since no sound written documents or sci entific studies done in Sri Lanka are reported. In this study, COD of
untreated PPWW was used to determine its OSCs and compatibility
of treatment techniques of existing treatment facilities. The field
sample analysis reported COD of above 1,605mg/l assuring high
OSCs of PPWW and evaluation of existing treatment methodologies
surprisingly highlighted a very few applications of ANRBTs in
the local PPIs, though ample research evidence is available on the
application of ANRBTs for the treatment of wastewaters with high
OSCs
