• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Co-Digestion of Hog Manure with Glycerol to Boost Biogas and Methane Production.
【24h】

Co-Digestion of Hog Manure with Glycerol to Boost Biogas and Methane Production.

机译：猪粪与甘油共同消化以提高沼气和甲烷的产量。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The use of off-farm materials as amendments in anaerobic digestion of manure is an option that is being explored more extensively, due to the benefits of boosting biogas production, and making the process more economical for the farmer. The addition of varying amounts of glycerol, which is a by-product in the biodiesel industry, was used as an amendment to anaerobic digestion of hog manure in lab-scale tests. Four bench-scale anaerobic digesters were operated under mesophilic conditions (35°C) at an SRT of 17.5 days. They were tested to determine how the anaerobic digestion process, and the biogas production, would be affected by the addition of glycerol.;The use of 2% glycerol produced the greatest amount of methane and biogas, however stabilization time was quite high, and the digestion of nutrients in the manure appeared to decrease. The addition of 4% glycerol resulted in an overloading of COD and digester failure. The addition of 1% glycerol resulted in a doubling of the methane and biogas production and the acclimation period was quite short, while the effluent quality remained good. There appeared to be no detrimental effects of using crude, industrial-based glycerol compared to pure, chemical-grade glycerol. Batch tests also confirmed that using smaller additions of glycerol (0.5% and 1%) produced the highest biogas and methane yields, and were recommended as good co-substrates to be used in anaerobic digestion with hog manure.
机译：由于增加了沼气生产的好处，并且使该过程对农民来说更加经济，因此，使用场外材料作为厌氧消化粪肥的一种修正方法正在被广泛研究。在实验室规模的测试中，添加了不同量的甘油（这是生物柴油行业中的副产品）被用作猪粪厌氧消化的一种修正。四个台式厌氧消化池在中温条件（35°C）下以17.5天的SRT运行。他们进行了测试，以确定添加甘油对厌氧消化过程和沼气产生的影响。;使用2％甘油产生的甲烷和沼气量最大，但是稳定时间非常长，并且粪便中养分的消化似乎减少。添加4％甘油会导致COD超载和蒸煮器故障。添加1％的甘油会使甲烷和沼气的产量增加一倍，适应期很短，而出水水质仍然良好。与纯化学级甘油相比，使用粗制的工业级甘油似乎没有不利影响。分批测试还证实，使用较少量的甘油（0.5％和1％）可产生最高的沼气和甲烷产率，因此建议将其作为良好的共底物用于猪粪的厌氧消化。

著录项

  • 作者

    Wohlgemut, Oswald.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Engineering Agricultural.;Engineering Environmental.
  • 学位 M.Sc.
  • 年度 2009
  • 页码 90 p.
  • 总页数 90
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号