Agricultural and livestock waste poses a serious concern regarding its management and disposal, as a large sum ends up as solid waste or gets burnt in the field. Therefore, it contributes to air pollution and global warming; thus, different methodologies have been investigated to convert waste into wealth in the form of chemicals, biogas, and raw materials for different industries. In this regard, the electro-methanogenic reactor has shown tremendous enhancement in converting this waste into biogas and bio-fertilizer compared to anaerobic digestion. The improvement is primarily associated with increased hydrogenotrophic methanogens and enriched direct electron transfer in the microorganism matrix. The mini-review aims to provide an overview of existing literature on anaerobic digestion microbial electrolysis cells (AD-MEC) for treating agricultural and livestock waste, offering a promising solution for energy production. It covers technical aspects like pre-treatment methodologies, reactor configuration, and operational procedures. In addition, the economic evaluation of the AD-MEC compared to the AD reactor has been presented to assess the technology's superiority. Furthermore, it identifies potential avenues for future investigations and aims to develop AD-MEC as an efficient and sustainable technology.

中文翻译：

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农畜废弃物电产沼气反应器及其与沼气厂的比较分析：小综述


农业和畜牧废物的管理和处置引起了严重关注，因为大量最终成为固体废物或在田间焚烧。因此，它会加剧空气污染和全球变暖；因此，人们研究了不同的方法，将废物以化学品、沼气和不同行业原材料的形式转化为财富。在这方面，与厌氧消化相比，电产甲烷反应器在将废物转化为沼气和生物肥料方面表现出巨大的增强。这种改善主要与微生物基质中氢营养产甲烷菌的增加和直接电子转移的丰富有关。该小型评论旨在概述用于处理农业和牲畜废物的厌氧消化微生物电解池（AD-MEC）的现有文献，为能源生产提供一种有前途的解决方案。它涵盖了预处理方法、反应器配置和操作程序等技术方面。此外，还对 AD-MEC 与 AD 反应堆进行了经济评估，以评估该技术的优越性。此外，它还确定了未来研究的潜在途径，并旨在将 AD-MEC 开发为一种高效且可持续的技术。