The increased wastes in the agricultural sector is a domino effect of population growth and the growing demand for food that have put pressure on the agricultural and livestock farming sectors for more production. Biomass is currently a major source for replacing fossil fuels driven by their future depletion and current environmental impacts as a result of their unbridled consumption. Anaerobic digestion of biomass is a known technology effective in producing gaseous biofuels. The study comprehensively reviews the potential of producing gaseous biofuels from agricultural residues including sugarcane, apple, sugarbeet, wheat, potato, rice, barley, alfalfa, grapes, corn, and dates and also from animal wastes including livestock and poultry manure and slaughterhouse wastes (e.g., blood and rumen) in Khuzestan Province, as the hub of Iranian agriculture. These wastes are a known concern of farmers and cannot be put to proper use. One of the best ways to use the above-mentioned wastes is to turn them into biofuels such as biogas. The study results revealed that agricultural wastes could produce over 830 million m³ of biogas, 400 million liters of biobutanol, and 345 million m³ of biohydrogen. The livestock farming sector of Khuzestan is also capable of producing 6 million tons of livestock feces and 0.34 million tons of chicken manure that can be the feedstock for producing 380 million m³ of gaseous biofuel. In addition, slaughterhouse wastes are also another source that can produce around 1030 million m³ of biogas. According to the results, by managing wastes both from the agricultural and livestock sectors in this province, the potential of biogas production can be used for generation of more than 4 TW/year of electricity. The findings of the present investigation could assist policy-makers in making decisions aimed at taking advantage of these renewable resources.

农业部门废物的增加是人口增长和对粮食需求增长的多米诺骨牌效应，这给农业和畜牧业部门带来了增加产量的压力。目前，生物质是替代化石燃料的主要来源，这些化石燃料的未来消耗和不加限制的消费对当前环境的影响推动了这种化石燃料的发展。生物质的厌氧消化是有效生产气态生物燃料的已知技术。这项研究全面审查了从农业残渣（包括甘蔗，苹果，甜菜，小麦，马铃薯，水稻，大麦，苜蓿，葡萄，玉米和枣）以及动物废物（包括畜禽粪便和屠宰场废物）生产气态生物燃料的潜力（例如，在胡泽斯坦省，作为伊朗农业的枢纽。这些废物是农民已知的问题，无法正确使用。使用上述废物的最佳方法之一是将其转化为生物燃料，例如沼气。研究结果表明，农业废弃物可能产生8.3亿多米³个沼气，4亿升生物丁醇和3.45亿立方米³的生物氢。胡齐斯坦省的畜牧养殖业也能够年产6万吨畜禽粪便和034万吨鸡粪，可以是原料生产3.8亿米的³气态生物燃料。此外，屠宰场废物也是另一个可产生约10.3亿立方米^{3的来源。}沼气。根据结果​​，通过管理该省农业和畜牧业的废物，沼气生产的潜力可用于每年发电超过4 TW。本次调查的结果可以帮助决策者做出旨在利用这些可再生资源的决策。