Effects of Magnetic Nanoparticles on Biogas Production in Anaerobic Digester

Öz

Anaerobic digestion, one of the processes commonly used to stabilize sludge produced in wastewater treatment plants and to generate renewable energy, is a process performed by many groups of microorganisms. Nowadays, advances in nanotechnology, a new field for scientific research, have enabled nanoparticles to be used in many areas. The effects of nanoparticles on methane production and stabilization in anaerobic digesters have become a remarkable issue in recent years. One of the most known and widely used nanoparticles is Fe₃O₄. In this study, the effects of magnetic nanoparticles, especially Fe₃O₄ magnetic nanoparticles, on biogas production in anaerobic digesters were investigated by giving information about nanoparticle applications. In addition, Fe₃O₄ magnetic nanoparticle was synthesized in the laboratory using the co-precipitation method and its magnetic properties were evaluated. After Fe₃O₄ was synthesized, the effects of Fe₃O₄ dose on biogas production were investigated by adding different concentrations to anaerobic digesters. Biogas increased with the increase in Fe3O4 concentration, and the average biogas volume in the control devices without Fe₃O₄ was 428.9 mL, while 572.8 mL biogas was obtained with the addition of 0.3 g/L Fe₃O₄.

Anahtar Kelimeler

• Stabilization
• Anaerobic digestion
• Methane production
• Nanoparticle
• Fe3O4

Manyetik Nanopartiküllerin Anaerobik Çürütücüde Biyogaz Üretimi Üzerine Etkileri

Öz

Atıksu arıtma tesislerinde üretilen çamurun stabilizasyonu ve yenilenebilir enerji üretmek için yaygın olarak kullanılan işlemlerden biri olan anaerobik çürütme, birçok mikroorganizma grubu tarafından gerçekleştirilen bir işlemdir. Günümüzde, bilimsel araştırmalar için yeni bir alan olan nanoteknolojideki gelişmeler, nanopartiküllerin birçok alanda kullanılmasını sağlamıştır. Nanopartikülleri anaerobik çürütücülerdeki metan üretimi ve stabilizasyon üzerine etkileri son yıllarda dikkat çeken bir konu haline gelmiştir. En bilinen ve yaygın olarak kullanılan nanopartüküllerden biri Fe₃O₄’tir. Bu çalışmada, nanopartikül uygulamaları hakkında bilgi verilerek ve manyetik nanopartiküllerin, özellikle de Fe₃O₄ manyetik nanopartiküllerinin anaerobik çürütücüde biyogaz üretimi üzerine etkileri ile araştırılmıştır. Ayrıca, laboratuvar ortamında, birlikte çökeltme yöntemi ile Fe₃O₄ manyetik nanopartikülü sentezlenmiş ve manyetik özellikleri değerlendirilmiştir. Fe₃O₄ sentezlendikten sonra farklı konsantrasyonlarda anaerobik çürütücülere ilave edilerek Fe₃O₄ dozunun biyogaz üretimi üzerindeki etkileri incelenmiştir. Fe₃O₄ konsantrasyonu artması ile biyogaz artışı görülmüş ve Fe₃O₄ kullanılmayan kontrol düzeneklerindeki ortalama biyogaz hacmi 428,9 mL iken 0,3 g/L Fe₃O₄ ilavesinde 572,8 mL biyogaz elde edilmiştir.

Anahtar Kelimeler

• Stabilizasyon
• Anaerobik çürütme
• Metan üretimi
• Nanopartikül
• Fe3O4

Kaynakça

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