Performance evaluation of an side-stream anaerobic membrane bioreactor: Synthetic and alcoholic beverage industry wastewater

Öz

The treatment performance of a laboratory-scale anaerobic membrane bioreactor (AnMBR) using high strength wastewater was evaluated. The AnMBR model system consisted of an up-flow anaerobic sludge blanket reactor (UASB) and an ultrafiltration (UF) membrane. Its performance was first examined using molasses based synthetic wastewater at different hydraulic retention times (1-3 days) and organic loading rates (5-15 kg COD/m3.day). As a result of the experimental studies, maximum treatment efficiency with respect to COD reduction (95%) was achieved at 7.5 kg COD/m3.day OLR (CODinfluent=15.000 mg/L, HRT=2 days) applications. When OLR was increased to 15 kg COD/m3.day, system performance decreased sharply. Similarly, methane gas production decreased by increasing OLR. After then, feed was changed to real wastewater, which was alcoholic beverage industry effluent. At this study, maximum COD removal efficiency of the system and maximum methane gas production was 88% and 74%, respectively.

Yan akımlı anaerobik membran biyoreaktör veriminin araştırılması: Sentetik atıksu ve alkollü içki sanayi atıksuyu

Öz

Yan akımlı anaerobik membran biyoreaktörlerin verimi yüksek kirliliğe sahip atıksular için laboratuvar ölçekli bir sistem kullanılarak irdelenmiştir. Sistem, yukarı akışlı çamur yataklı anaerobik (UASB) reaktör ve ultrafiltrasyon (UF) membran modülünden oluşturulmuştur. Sistemin verimi öncelikle seyreltilmiş melastan hazırlanan sentetik atıksu ile farklı hidrolik alıkonma süreleri (1-3 gün) ve organik yükleme oranlarında (5-15 kg KOİ/m3.day) incelenmiştir. Yapılan deneysel çalışmalar neticesinde, maksimum KOİ giderme verimi (%95) 7.5 kg KOİ/m3.gün organik yükleme değerinde (KOİgiriş=15.000 mg/L, HRT=2 gün) elde edilmiştir. Organik yükleme değeri 15 kg KOİ/m3.gün değerine çıkartıldığında sistem performansı aniden düşmüştür. Daha sonra, besleme suyu bir alkollü içki sanayi atıksuyu ile değiştirilerek gerçek atıksu ile çalışmalar yürütülmüştür. Bu çalışmada, maksimum toplam sistem verimi ve metan gazı oluşumu sırasıyla %88 ve %74 olarak belirlenmiştir.

Anahtar Kelimeler

• Anaerobik, Membran, Atıksu, Alkollü içki sanayi

Kaynakça

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