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首页> 外文期刊>Renewable energy >Co-ensiling of cattle manure before biogas production: Effects of fermentation stimulants and inhibitors on biomass and methane preservation
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Co-ensiling of cattle manure before biogas production: Effects of fermentation stimulants and inhibitors on biomass and methane preservation

机译：沼气生产前牛粪的共同培养：发酵刺激剂和抑制剂对生物量和甲烷保存的影响

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The impact of formic acid and glucose addition on the co-ensiling of cattle manure with straw was assessed during 4 months at laboratory scale. Feedstock deprived of additives lost 67% of its methane potential for prolonged ensiling. This was mainly due to the lack of water-soluble carbohydrates and to the high methanogenic activity of cattle manure. The use of co-substrates enhanced biomass and energy conservation during ensiling. The best result was obtained for co-ensiling of cattle manure with glucose (100 g/kg of feedstock). For this condition, lactate production was extensive, which enabled biomass acidification, suppressed ammonia emissions and led to full preservation of methane potential after 4 months. Therefore, in field-scale storage, co-ensiling with a sugar-rich co-substrate appears to be the most resourceful method to optimize cattle manure preservation. Application of this promising technique will have a major impact on the methane yield of agricultural biogas plants where cattle manure has to be stored for long periods. (C) 2018 Elsevier Ltd. All rights reserved.
机译：在实验室规模的4个月内，评估了甲酸和葡萄糖添加对牛粪与秸秆共沉淀的影响。缺乏添加剂的原料因长时间加盖而丧失了67％的甲烷潜力。这主要是由于缺乏水溶性碳水化合物和牛粪的高产甲烷活性。共基质的使用增强了青贮过程中的生物量和能源节约。牛粪与葡萄糖（100克/千克原料）的共同保鲜获得了最佳结果。在这种情况下，乳酸的生产很广泛，可以使生物质酸化，抑制氨的排放，并在4个月后完全保留甲烷的潜力。因此，在田间规模的存储中，与富含糖分的共底物共同盘养似乎是最优化牛粪保存的资源最丰富的方法。这种有前途的技术的应用将对必须长期保存牛粪的农业沼气厂的甲烷产量产生重大影响。 （C）2018 Elsevier Ltd.保留所有权利。

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