Üç-aşamalı (Karanlık-fermantasyon, metanojenesis ve foto-fermantasyon) sistemlerde organik atıklardan entegre biyohidrojen ve metan üretiminin araştırılması

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2015

Author

Ergüder, Hande Tuba
Eroğlu, İnci
Gündüz, Ufuk
Tunçay, Güneş Ekin
Akman, Can Melih
Koç, Engin

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Bu projenin amacı, birim organik maddeden elde edilen enerjiyi, diğer bir deyişle, toplam hidrojen ve metan üretimini arttırmak için, üç-aşamalı karanlık fermantasyon, metanojenesis ve foto-fermantasyon konfigürasyonunun geliştirilmesi ve enerji veriminin maksimizasyonu amacıyla üçlü sistemin uygun işletim koşullarının belirlenmesidir. Önerilen üç-aşamalı konfigürasyon bugüne kadar çalışılmamış, özgün bir sistemdir. Bu teknolojinin geliştirilmesi için her aşama, kesikli işletilen ve(ya) ardışık-kesikli modda sürekli işletilen reaktörlerle kademeli olarak entegre edilmiştir. Üç-aşamalı konfigürasyon, sentetik atıksu ve uygulama olarak şeker fabrikası atığı / yan ürünü melas ile çalıştırılmıştır. Baskın olan popülasyon dinamiğinin belirlenmesi için moleküler analizleri de gerçekleştirilmiştir. Proje çıktıları, önerilen üç-aşamalı konfigürasyonlardan (kesikli veya ardışık-kesikli reaktör - AKR- entegrasyonlarından) elde edilen maksimum toplam (brüt) ısıl enerji değerinin 13,47- 16,11 kJ/g çKOİeklenen, H2 bazında maksimum verimin ise 9,18-10,80 mol H2/mol heksoz aralığında olduğunu göstermiştir. Bu değerler, iki-aşamalı karanlık fermantasyon + fotofermantasyon sistemlerinde bugüne kadar elde edilen en yüksek verimden (7,2 mol H2/mol heksoz) %27-50; iki-aşamalı hidrojen sistemlerinin kurulumu için ekonomik değer sınırını oluşturan 8 mol H2/mol heksoz veriminden de %14-37 fazladır. Üç-aşamalı sistem konfigürasyonları, iki-aşamalı karanlık fermantasyon + metanojenesis sistemlerinden elde edilen enerjiye (13,15-14,64 kJ/g çKOİ) benzer ölçüde enerji üretmektedir. Bulgular, üç-aşamalı konfigürasyondan elde edilen enerjinin, iki-aşamalı karanlık fermantasyon + metanojenesis sistemlerinden elde edilebilecek teorik değere oldukça yakın (%89-96) olması açısından da önemlidir. Maksimum enerji ve verim eldesi (16,11 kJ/g çKOİ ve 10,80 mol H2/mol heksoz), AKR-Karanlık fermentasyon + AKR- Metanojenesis + Kesikli fotofermantasyon entegre sisteminde sağlanmıştır. Bu projede önerilen konfigürasyonla, ülkemiz hedefleri içerisinde yer alan, yenilenebilir enerji üretimi, atıkların kontrolsüz bertarafı ve olası sera-gazı salınımının azaltımı için alternatif bir teknoloji, ve sürdürülebilir kalkınma hedefi gerçekleştirilebilmiştir. Ayrıca, yeşil teknolojinin iki xxiv önemli ham maddesi, metan ve hidrojen, aynı konfigürasyonla ve önemli bir verim eldesiyle üretilmiştir.

Subject Keywords

Enerji, Fotofermantasyon, Hidrojen, Homoasetojenesis, Karanlık fermantasyon, Metan, Metanojenesis, PCR-DGGE

URI

https://app.trdizin.gov.tr/publication/project/detail/TVRRNE9UQXc
https://hdl.handle.net/11511/49530

Collections

Department of Environmental Engineering, Project and Design

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Citation Formats

H. T. Ergüder, İ. Eroğlu, U. Gündüz, G. E. Tunçay, C. M. Akman, and E. Koç, “Üç-aşamalı (Karanlık-fermantasyon, metanojenesis ve foto-fermantasyon) sistemlerde organik atıklardan entegre biyohidrojen ve metan üretiminin araştırılması,” 2015. Accessed: 00, 2020. [Online]. Available: https://app.trdizin.gov.tr/publication/project/detail/TVRRNE9UQXc.