This study evaluated the combination of bioprocesses to increase the utilization of agro-industrial poultry wastes. Composting piles were submitted to hydration and fraction separation (FS) and then, the solid fraction was vermicomposted and the liquid fraction was anaerobically digested. Composting followed by hydration and FS prior to vermicomposting enhanced earthworm adaptation and survival by reducing salt levels (50%), total organic carbon, and total nitrogen which may be limiting to vermicomposting at high concentrations. These strategies providing the production of up to 300 new cocoons and 360 young earthworms more than the control treatment. In addition to providing a favorable environment for earthworm growth, the combination of bioprocesses resulted in a high-quality organic fertilizer free of phytotoxic compounds and with phytostimulant properties (germination index higher than 100%). Energy recovery was greater in the treatment without the precomposting step (T0) (461.8 L CH4 kg-1. Volatile Solidsadded). The results show that combining the bioprocesses is a sustainable alternative for managing poultry wastes not only in terms of the recycling of nutrients but also by providing a clean source of energy.

中文翻译：

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农业工业家禽废物管理的生物过程组合：对蚯蚓堆肥和厌氧消化的影响。

本研究评估了生物过程的组合，以提高农工业家禽废物的利用率。堆肥堆经过水化和馏分分离 (FS)，然后将固体部分进行蚯蚓堆肥，液体部分进行厌氧消化。在蚯蚓堆肥之前先进行堆肥，然后是水合和 FS，可通过降低盐分 (50%)、总有机碳和总氮来增强蚯蚓的适应和存活，这可能会限制在高浓度蚯蚓堆肥。与对照处理相比，这些策略提供了多达 300 个新茧和 360 条幼蚯蚓的生产。除了为蚯蚓的生长提供良好的环境外，生物过程的结合产生了一种不含植物毒性化合物并具有植物刺激特性（发芽指数高于 100%）的高质量有机肥料。在没有预堆肥步骤 (T0) 的处理中能量回收率更高（461.8 L CH4 kg-1。添加的挥发性固体）。结果表明，结合生物过程是管理家禽废物的可持续替代方案，不仅在养分循环方面，而且通过提供清洁能源。