Background and Objective: Anaerobic digestion of slaughterhouse solid wastes, such as rumen contents, is an appropriate treatment option for managing such residues, because of their significant role in reducing the environmental impacts as well as the potential for biog
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Background and Objective: Anaerobic digestion of slaughterhouse solid wastes, such as rumen contents, is an appropriate treatment option for managing such residues, because of their significant role in reducing the environmental impacts as well as the potential for biogas production. The objective of this study was determining the appropriate temperature, time and ratio of water to livestock rumen content on the total biogas production.Material and Methodology: This study was conducted at the Khorramabad Industrial Slaughterhouse. After slaughtering livestock the contents of the rumen of five cows and five sheep were mixed together to homogenize and in separate experiments to examine the impact of severity different temperatures (30, 40 and 50° C), different times of Ultrasonic device waving (10, 20 and 30 minutes) and different ratios of mixing contents of rumen and water (50 ml of water to 100 g of rumen contents, 100 ml of water to 100 g of rumen contents and 200 ml of water to 100 g of rumen contents) in process of biogas production was discussed.Findings: In general, the largest amount of total biogas, related to the triple opposite effect of using 30 minutes of ultrasonic pretreatment (t3) * C50 ° (te3) * Combination ratio of visceral contents (r3) with production amount of 350/333 ml which is considered the best results.Discussion and Conclusion: the finding indicated that the total biogas production from rumen content in the process of anaerobic digestion are more effected by the treatment under the conditions of a longer ultrasonic pretreatment, higher temperature and lower concentration.
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