Analysis of load variation on chicken slaughterhouse waste water treatment using GAS-SBR

Abstract

In general, chicken slaughterhouses have capacity of slaughtering more than 40,000 chickens per day so its produce a high waste water. It takes sewage treatment appropriate technology, Granular Aerobic Sludge which use Sequencing Batch Reactor (GAS-SBR) due to the high of BOD and COD. The purpose of this research was to explore GAS ability in decreasing parameter of COD, BOD, TSS and ammonia. The initial concentration COD influent was 6,406.4 mg/L then it was varied into three concentrations were 6,144 mg/L (100%), 4,608 mg/L (75%) and 3,072 mg/L (50%) of diluted pure water. As the result with four hours’ aeration time, the highest removal of 100% BOD load was 56.25% and an effluent was 1,400 mg/L. The highest removal of 50% COD load was 75% and an effluent was 768 mg/L. The highest removal of 100% TSS load was 36.73% an effluent was 1.79 mg/L. And the highest removal of 75% Ammonia load was 67.91% and an effluent was 1.11 mg/L. The parameter for the TSS and ammonia have meet the quality ministry environment no.5 2014 law for slaughterhouses, while the BOD and COD parameters are exceeding the standards due to its high organic content.