<b>Büyükbaş Hayvan Atıkları için Kurulacak Havasız Çürütme Tesisinin Ekonomik Analizi</b> / The Economical Analysis of Cattle Manure Treatment by Anaerobic Digestion Process
DOI:
https://doi.org/10.7596/taksad.v1i4.143Keywords:
Biyogaz, büyükbaş hayvan atıkları, geri ödeme periyodu, havasız çürütme, Biogas, cattle manure, payback period, anaerobic digestionAbstract
Büyükbaş hayvan atıkları, içeriğindeki yüksek katı madde, organik kirlilik ve patojen mikroorganizmalar sebebiyle halk sağlığı açısından olumsuz etkiler yapabilecek bir atıktır. Bu çalışmada havasız çürütme ile atıkların stabilize edilerek biyogaz elde edilmesi ve çürümüş atıkların toprakta doğal gübre olarak kullanılmasını içeren bir yönetim modeli uygulanmıştır. Bunun için pilot ölçekli bir havasız çürütme reaktörü işletilmiş ve çürümüş atıklar çeşitli dozlarda yonca, Macar fiğ ve arpa karışımı ile mısır silajı bitkilerinin ekildiği alanlarda doğal gübre olarak toprağa eklenmiştir. Havasız çürütme işleminde yarımcı materyal olarak mısır silajı da reaktöre beslenmiştir. Çalışma sonunda elde edilen sonuçlar ve literatür yardımıyla 1000 baş hayvan için kurulum ve işletme maliyetleri hesaplanmıştır. Kurulum maliyeti; elektrik üretim sisteminin kurulup kurulmaması açısından iki farklı değer olarak hesaplanmıştır. İşletme maliyetleri farklı tarla ürünleri ve yine elektrik sisteminin kurulup kurulmaması açılarından çeşitli durumlar için hesaplanmıştır. Sonuç olarak elde edilen en iyi sonuçlara göre; çürümüş atıklar Macar fiğ ve arpa karışımı bitkisinin ekiminde kullanıldığında kurulacak tesisin elektrik üretim sistemi de kurulduğunda 2,5 yılda, elektrik üretim sistemi kurulmadığında ise 2,1 yılda kendisini amorti ettiği bulunmuştur. The Economical Analysis of Cattle Manure Treatment by Anaerobic Digestion Process Cattle manure is a potential for causing detrimental effects on human health due to its high solid matter and pathogen microorganism content. In this study, it was aimed to achieve biogas production by stabilizing the waste using anaerobic digestion. Digested waste was utilized as natural fertilizer. For that reason, a pilot-scale anaerobic digestion tank was operated and digested wastes were added to soil in diverse dosages where alfalfa, the mixture of Hungarian vetch and barley and corn silage are planted. Corn silage was fed to the reactor as a supplementary material during anaerobic digestion process. Installation and operating costs are determined for 1,000 cattle by the results obtained and the literature datas. Installation cost was evaluated considering both installed electricity producted system and non-installed electricity producted system. As a result, according to best results, the system would pay for itself in 2. 5 years when electricity production system is installed while the system is not installed, the pay off would be realized in 2. 1 years for the mixture of Hungarian vetch and barley.References
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