Investigation of Olive Mill Wastewater Treatment with Advanced Oxidation Processes

Öz

In this study, the effectiveness of ozone (O3), ozone+hydrogen peroxide (O3+H2O2) and fenton (Fe2++H2O2) processes were investigated in the treatment of olive mill wastewater obtained from an olive oil production facility operating in Balıkesir province. Firstly, the ozone generator was operated with a 10% capacity. Ozonation was performed for 6 hours at three different pH values (4.75, 10 and 11) and the maximum removal efficiency was calculated as 15.27% when the pH value was 11. Secondly, the ozone generator was operated with a 10% capacity and an avarage of 500 mg L-1 H2O2 was added. After this 6 hour experiment, the removal efficiency was obtained as 9.8%. Finally, in the fenton process, where the effects of Fe2+ (2.014 g L-1 and 4.028 g L-1) and H2O2 (19.05, 44.44 and 80 g L-1) concentrations were examined for the treatment of olive mill wastewater, the remained concentrations of COD decreased continuously at the and of the experinent when Fe2+ and H2O2 concentrations increased. The concentrations of Fe2+ and the H2O2 were set at 4.029 mg L-1 and 80 mg L-1 respectively, and COD removal was achieved at the rate of 81.94%. The results obtained from the experiments revealed that the fenton process has much more effeciency than other processes.

Anahtar Kelimeler

• Fenton (Fe²⁺+H₂O₂)
• hydrogen peroxide (H₂O₂)
• advanced oxidation process (AOP)
• ozone (O₃)
• olive mill wastewater

Proje Numarası

BAP 2012/099

Zeytin Karasuyunun İleri Oksidasyon Prosesleri İle Arıtımının İncelenmesi

Öz

Bu çalışmada, Balıkesir ilinde faaliyet gösteren bir zeytinyağı üretim tesisinden temin edilen zeytin karasuyunun arıtımında ozon (O3), ozon+hidrojen peroksit (O3+H2O2) ve fenton (Fe2++H2O2) proseslerinin etkinlikleri incelenmiştir. İlk olarak %10 kapasite ile O3 jeneratörü çalıştırılmış ve 3 farklı pH (4.75, 10 ve 11) değerinde 6 saat boyunca ozonlama işlemi gerçekleştirilmiş ve maksimum giderim verimi pH değeri 11 olarak ayarlandığında %15.27 olarak hesaplanmıştır. İkinci olarak %10 kapasite ile O3 jeneratörü çalıştırılmış ve ortama 500 mg L-1 H2O2 ilave edilmiştir. 6 saatlik bu deneme sonrasında giderim verimi %9.8 olarak gerçekleşmiştir. Son olarak zeytin karasuyunun arıtımı için farklı Fe2+ (2.014 g L-1 ve 4.028 g L-1) ve H2O2 (19.05, 44.44 ve 80 g L-1) konsantrasyonlarının etkilerinin incelendiği fenton prosesinde Fe2+ ve H2O2 konsantrasyonları arttığında deney sonunda ortamda kalan KOİ konsantrasyonları sürekli azalmıştır. Fe2+ konsantrasyonu 4.029 mg L-1 ve H2O2 konsantrasyonu 80 mg L-1 olarak ayarlanmış ve %81.94 oranında KOİ giderimi sağlanmıştır. Elde edilen sonuçlar fenton prosesinin, diğer proseslerden çok daha fazla etkinliğinin olduğunu ortaya çıkarmıştır.

Anahtar Kelimeler

• Fenton (Fe²⁺+H₂O₂)
• hidrojen peroksit (H₂O₂)
• ileri oksidasyon prosesi (İOP)
• ozon (O₃)
• zeytin karasuyu

Destekleyen Kurum

Atatürk Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi

Proje Numarası

BAP 2012/099

Teşekkür

Bu çalışma Atatürk Üniversitesi Bilimsel Araştırma Projeleri, BAP 2012/099 nolu proje kapsamında desteklenmiş olup çalışmamız için desteklerini esirgemeyen Atatürk Üniversitesi Çevre Mühendisliği Bölümü’nün kıymetli çalışanlarına teşekkür ederiz.

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