tailieunhanh - Treatment of olive oil mill wastewater with fungi

Olive oil mills produce a liquid waste called olive black water in the olive oil production process. In this study, olive oil mill wastewater (OOMW) was analysed and then treated aerobically with fungi. Consequently, high chemical oxygen demand (COD), phenol and color reduction were obtained. High biomass yields and laccase enzyme activities were also determined. | Tr. J. of Biology 23 (1999) 231-240 © TÜBİTAK Treatment of Olive Oil Mill Wastewater With Fungi Özer YEŞİLADA Inönü University, Science and Arts Faculty, Department of Biology, Malatya-TURKEY Sibel ŞIK Inönü University, Faculty of Education, Department of Biology, Malatya-TURKEY Mesut ŞAM Balıkesir University, Science and Arts Faculty, Department of Biology, Balıkesir-TURKEY Received: Abstract:: Olive oil mills produce a liquid waste called olive black water in the olive oil production process. In this study, olive oil mill wastewater (OOMW) was analysed and then treated aerobically with fungi. Consequently, high chemical oxygen demand (COD), phenol and color reduction were obtained. High biomass yields and laccase enzyme activities were also determined. Key Words: Olive oil mill wastewater, Fungi, Chemical oxygen demand, Phenol, Laccase. Zeytinyağı Fabrikası Atıksuyunun Funguslarla Arıtımı Özet: Zeytinyağı, fabrikaları, zeytin yağı üretim sürecinde zeytin kara suyu adı verilen bir sıvı atık üretmektedir. Bu çalışmada, zeytinyağı fabrikası atıksuyu (ZYFA) analiz edilmiş ve daha sonra funguslar ile aerobik olarak muamele edilmiştir. Çalışmamız sonucunda, yüksek kimyasal oksijen istemi (KOİ), fenol ve renk giderimi elde edilmiştir. Yüksek biyokütle verimi ve lakkaz enzimi aktiviteleri de ayrıca saptanmıştır. Anahtar Sözcükler: Zeytinyağı Fabrikası Atığı, Fungus, Kimyasal Oksijen İstemi, Fenol, Lakkaz. Introduction Olive oil technology uses two methods for production of oil from olive fruit: the discontinuous press process or the continuous solid-liquid centrifuge system. Wastewater with a high pollution potential is produced whichever processing method is used (1). This olive oil mill wastewater is called “Kara Su” in Turkey. The annual olive oil mill wastewater production in Mediterranean countries is estimated to be over 3x107 m3 (2). Biochemical (biological) and chemical oxygen demand of this waste may be as high as 100 and 200 g/l respectively.