2021 Cilt 15 Sayı 43

Permanent URI for this collectionhttps://hdl.handle.net/11452/27324

Browse

Browsing by BUU Author "Kılıç, İlker"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Publication
    Determination of enteric methane emissions from cattle production by using Tier-2 method
    (Bursa Uludağ Üniversitesi, 2021-08-09) Yaylı, Büşra; Kılıç, İlker; Ziraat Fakültesi; Biyosistem Mühendisliği Bölümü
    Livestock farms are known to be important greenhouse gas producers. Especially in the agriculture sector, the most important sourceof anthropogenic methane (CH4) emission is ruminant animals. In recent studies of dairy cattle, it is noted that most of the formation of CH4 gas occurs as a result of enteric fermentation. In this study, it was aimed to evaluate the CH4 emissions resulting from enteric fermentation of cattle during the 2004-2020 period in Turkey. The Tier-2 method adopted by the Intergovernmental Panel on Climate Change (IPCC) was used adopted for data generation and calculation of emission factors for the calculation of CH4 emissions forenteric fermentation in cattle. Based on the study results, the required gross energy (GE) value and enteric fermentation emission factors (EF) were calculated according to cattle sub-categories. It has been observed that methane gas emission from cattle as a resultof enteric fermentation has followed a fluctuating course in the last 16 years in Turkey. Methane emissions of 541 kT to 907 kT CH4gas emissions were calculated. Methane emission can be suppressed by changes made in feed rations, added oil and various additivesto reduce methane emissions in the rumen. In addition, breeding high yielding species with low methane production is one of the strategies that can reduce methane formation.
  • Thumbnail Image
    Publication
    Treatment of ammonia from animal barns by using biofilter
    (Bursa Uludağ Üniversitesi, 2021-08-09) Kılıç, İlker; Ziraat Fakültesi; Biyosistem Mühendisliği Bölümü
    As a result of intensive animal production, decomposition of manure due to various microorganism activities, and metabolic activities of the animal, many gases, especially ammonia, are released. These gases are thrown into the atmosphere cause many environmentalproblems. This study, it was aimed to treat ammonia originating from animal barns by biofilter. In the study, tree bark, compost, and sawdust were used as biofilter materials. These biological materials were mixed in specific proportions, brought to 80% moisture content, and placed into the biofilter. Ammonia was introduced into the biofilter filled with biological material. Ammonia concentrations in the air leaving the biofilter were measured at nine points by placing multiple gas meters on the front of the biofilter. Moisture content, dry matter content, pH, salinity, and temperature values were determined by taking samples from the biofiltermaterial before and after treatment. According to the study results, the highest treatment efficiency was 98.4% at the first measurement point and the lowest treatment efficiency with 89.4% at the sixth point. An average of 94% treatment efficiency wasachieved at all measurement points. As a result of the analyzes, it was observed that the pH and temperature values of the biofiltermaterial did not change significantly before and after the treatment. However, the salinity values changed significantly. In the lightof ammonia treatment rates, it can be said that the biofilter developed in this study is useful for animal barns. But biofilter is open to improvement using new biofilter materials.