Türkiye'deki Yaygın Tarımsal Atıların Biyogaz Üretim Potansiyelinin Değerlendirmesi

Year 2021, Volume: 23 Issue: 68, 547 - 555, 24.05.2021

Emine Gözde Özbayram , Orhan İnce

https://doi.org/10.21205/deufmd.2021236817

Cited By: 1

Abstract

Günümüzdeki enerji politikaları, sürdürülebilirlik kriterlerinin sağlanması yeşil kaynaklardan enerji üretimini teşvik etmektedir. Dünyadaki en büyük tarım üreticilerinden biri olan Türkiye, büyük bir biyogaz üretim potansiyeline sahiptir. Bu çalışmada, Türkiye'deki yaygın tarımsal atıkların biyometan verimlerinin incelenmesi ve biyogaz üretimine katkı potansiyellerini değerlendirilmesi amaçlamaktadır. Bu kapsamda, Türkiye'nin farklı bölgelerinden substrat olarak değerlendirilmek üzere tahıl atıklarından buğday, çavdar ve tritikale ile ayçiçeği başları, çay artıkları, pamuk sapları toplanmıştır. Seçilen atıkların biyometan üretiminin belirlenmesi için anaerobik çürütücüler kurularak, 30 gün süre ile 37 ° C'de kesikli olarak işletilmiştir. Çürütücü deney setleri üç tekrarlı olarak kurulmuş, metan üretimleri eş zamanlı kaydedilmiştir. Aşı çamurundaki metan üretiminin ağırlıkla asetoklastik metanojenik yolağı izlediği belirlenirken, bakteriyel komünite Cloacimonetes, Firmicutes ve Bacteroidetes türlerinden oluşmuştur. En yüksek metan verimi buğday samanı ile işletilen çürütücülerde gözlenirken (164 NmL/gUKMgiriş), bunu tritikale samanı ile ayçiçeği başları izlemiştir. En düşük biyometan verimi pamuk sapları ile işletilen çürütücülerde kaydedilmiştir (71 NmL/gUKMgiriş). Tarımsal atıklarla işletilen çürütücülerde biyometan potansiyel verimlerini artırmak ve anaerobik çürütücüleri daha uygulanabilir hale getirmek için, işletme koşulları optimize edilmeli ve fiziko-kimyasal ve biyolojik ön arıtma teknikleri ve / veya biyoaugmentasyon uygulamaları sistemlere entegre edilmelidir.

Keywords

Tarımsal atık, Anaerobik Çürütme, Biyometan, Yenilenebilir Enerji, Atık Yönetimi

Supporting Institution

ERANET-LAC Projesi

Project Number

118Y2170

Comparative Assessment of Biogas Production Potential of the Most Abundant Agro-residues in Turkey

Abstract

Recent energy policies promote energy generations from green resources to meet sustainability criteria. Since Turkey is one of the largest agricultural producers globally, it has great biogas production potential. This study aims to evaluate the biomethane yields of the most abundant agro-residues in Turkey and to assess their potentials for contribution to biogas production. Within this scope, sunflower heads, tea residues, cotton stalks, and crop residues; wheat, rye, and triticale straws were collected from different regions of Turkey. Anaerobic batch digesters were conducted to investigate the biomethane production of the selected feedstock and operated for 30 days at 37°C. Each setup was conducted in triplicates and methane productions were monitored online. The main methane production route of the inoculum was determined as acetoclastic methanogenesis while Cloacimonetes, Firmicutes, and Bacteroidetes composed the core bacterial phyla. The greatest methane yield was observed in the digesters operated with the wheat straw followed (164 NmL/gVSinfluent) by triticale straw and sunflower head. The lowest yields were calculated for the digesters fed with the cotton stalks (71 NmL/gVSinfluent). To increase the biomethane potential yields in the anaerobic digesters operated with agro-residues and to make the anaerobic digesters more feasible, operational conditions should be optimized and physico-chemical and biological pre-treatment techniques and/or bioaugmentation applications should be integrated into the systems.

Keywords

Agricultural residues, Anaerobic Digestion, Biomethane, Renewable Energy, Waste Management

Project Number

118Y2170

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