Zeytin Karasuyunun Anaerobik Arıtılabilirliği ve Biyogaz Üretim Potansiyelinin Araştırılması

Yıl 2020, Cilt: 9 Sayı: 4, 1766 - 1778, 25.12.2020

Fatih Tufaner

https://doi.org/10.17798/bitlisfen.676940

Cited By: 1

Öz

Zeytinyağı üretim fabrikalarında zeytin karasuyunun anaerobik olarak arıtılması hem biyogaz üretimi hem de sürdürülebilir çevre için umut verici bir yöntemdir. Bununla birlikte zeytinyağı fabrikalarının dönemsel çalışıyor olması bir dezavantaj gibi görünse de geniş zaman imkanı ile yüksek organik yüke sahip olan zeytin karasuyunun gerekli seyreltme ve baz ilavesi gibi ön işlemler ile arıtılması mümkündür. Bu çalışmada, yaklaşık 78000 mgL-1 KOİ konsantrasyonuna sahip ham zeytin karasuyu yaklaşık 1/8 oranında musluk suyu ile seyreltilerek 6.15 L aktif hacme sahip yukarı akışlı havasız çamur yataklı anaerobik reaktörde mezofilik şartlarda (36.5-37 °C) arıtılmıştır. Deneysel çalışma esnasında zeytin karasuyunun fiziksel ve kimyasal yapısından kaynaklanabilecek olumsuzlukların önüne geçerek gerekli mikroorganizma adaptasyonunun sağlanabilmesi için 39 günlük bir kesikli besleme süreci ile proses deneysel çalışmaya hazırlanmıştır. Hidrolik besleme süresinin 10 gün organik yükleme oranının 1 kg KOİ m-3gün-1 olduğu anaerobik proses 32 gün boyunca yarı sürekli olarak beslenmiştir. Zeytin karasuyunun düşük alkaliniteye sahip olması anaerobik proses için zorlayıcı olmuştur. Yaklaşık 615 mL (10000 mgL-1 KOİ ) seyreltilmiş zeytin karasuyuna 1N 12 mL NaOH ilavesi yapılarak sistem anaerobik şartlar için uygun pH aralığına (6.8-7.2) yaklaştırılmıştır. Çalışmanın sonunda %75.6 (±14.2) KOİ giderimi ile birlikte 2177 (± 279) mLgün-1 biyogaz üretiminin gerçekleştiği tespit edilmiştir. Anaerobik arıtma, seyreltilerek alkalinite takviyesi yapılmış olan zeytin karasuyundan KOİ giderimi ve biyogaz üretimi için sürdürülebilirlik açısından ve çevresel olarak dikkate alınması gereken bir prosestir.

Anahtar Kelimeler

Zeytin Karasuyu, Anaerobik Arıtma, KOİ Giderimi, Biyogaz Üretimi

Destekleyen Kurum

Adıyaman Üniversitesi Bilimsel Araştırma Projeleri Birimi (ADYÜBAP)

Proje Numarası

MÜFLAP/2017-0012

Teşekkür

Yazar bu çalışmayı finansal olarak destekleyen Adıyaman Üniversitesi Bilimsel Araştırma Projeleri Birimine teşekkür etmektedir (MÜFLAP/2017-0012).

Kaynakça

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