List of Articles هضم بیهوازی Open Access Article Abstract Page Full-Text 1 - Biogas Production from Sugar Beet Wastes in an Overload Bioreactor with pH Adjustment Misagh Keramati Hossein Beiki 10.22034/jest.2021.25836.3479 Open Access Article Abstract Page Full-Text 2 - 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 3 - 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 Open Access Article Abstract Page Full-Text 4 - A Review of Various Suitable Methods of Dry Anaerobic Digestion for Agricultural Wastes Disposal in Iran Laleh Ghafghazi Lobat Taghavi