List of Articles Slaughterhouse wastes Open Access Article Abstract Page Full-Text 1 - Investigating the most appropriate treatments for ultrasonic duration, temperature and water ratio to the contents of livestock rumen in biogas production (Case study: Khorramabad city slaughterhouse) Ali Kooshki morteza almassi Mohammad Ghahderijani Hamidreza Shamloui 10.30495/jest.2021.54005.5115 Open Access Article Abstract Page Full-Text 2 - Effects of Retention Time and Substrate Type on Biogas and Alkalinity Productions from Anaerobic Digestion of Slaughterhouse Wastes Amaneh Salimi Shahnaz Danesh Seyed Hadi Ebrahimi