VOLATILE FATTY ACID PRODUCTION DURING ACIDIFICATION OF OLIVE MILL WASTEWATER

摘要

This study aims to investigate acidification potential of oil mill wastewater (OMW) via acidification reactors. During the study, tVFA production was determined; pH, sCOD, TSS, Total Volatile Fatty Acid concentration and composition were monitored. Acidification reactors were performed for 60 days and according to datas for first 60 days; tVFA concentration (in terms of Acetic Acid), gradually increased form 450 mg/l to 5278 mg/l. During the process, changes in Volatile Fatty Acid composition have been observed. While each VFA concentration were increased, also other VFA compounds, not detected in influent, were determined in the effluent. During acidification process, changes in sCOD concentration were monitored daily. No major changes were observed in organic matter concentration during process. Therefore, loss of organic matter was not mentioned. Although there is no change in organic matter concentration but there is increase in tVFA concentration. Therefore it is indicated that organic matter change form thus acidification process was performed successfully.