Author: Engin GÜRTEKİN
Publishing Date: 2009
Volume: 24 Issue: 1
In this study, the effects of organic loading and aeration time on biological treatment of dairy industry wastewater were investigated. The removal efficiencies of the Sequencing Batch Reactor (SBR) increased when the organic loading was decreased and hydraulic retention time (HRT) was increased. The Sequencing Batch Reactor (SBR) was operated in 24 h time cycle and the eration time of 7 h was sufficient for COD, BOD5 and NH4+‐N removal.The COD rameter in the treated effluent satisfied the discharge limits of Water Pollution Control Regulation (WPCR), when the reactor was operated with dairy industrial wastewater under HRT of 4 h and the organic loading of 0,60 kg BOD5/m3‐d. Therefore, the results showed that higher HRT was required for higher ammonium removal.
Key Words: Sequencing batch reactor; dairy industry wastewater; organic loading; aeration time.