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Theoretical analysis of the kinetic performance of laboratory- and full-scale composting systems

机译：实验室和全规模堆肥系统动力学性能的理论分析

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摘要

Composting research at laboratory-scale is critical for the development of optimized full-scale plants. Discrepancies between processes at laboratory-scale and full-scale systems have been investigated in terms of heat balances, but a kinetic analysis of this issue is still missing. In this study, the composting rate at laboratory-scale was, on average, between 1.9 and 5.7 times faster than in full-scale systems for a set of published studies using municipal solid waste, food waste or similar materials. Laboratory-scale performance and full-scale systems were limited to 71 and 46%, respectively, of their maximum potential due to poor management of environmental process conditions far from their optimum. The main limiting environmental factor was found to be moisture content, followed by temperature. Besides environmental factors, waste composition and particle size were identified as factors accounting for kinetic differences between laboratory- and full-scale systems. Overall, this study identifies those factors that affect the kinetics of the composting process most and revealed a significant margin for reducing process time in full-scale composting.
机译：实验室规模的堆肥研究对于优化全规模工厂的开发至关重要。已经根据热平衡研究了实验室规模的过程和全规模系统之间的差异，但是仍然缺少对此问题的动力学分析。在这项研究中，对于一组使用城市固体废物，食物废物或类似材料的已发表研究，实验室规模的堆肥率平均比全尺寸系统快1.9到5.7倍。由于对环境过程条件的管理不善，无法将实验室规模的性能和全面规模的系统分别限制在其最大潜力的71％和46％。发现主要的限制环境因素是水分含量，其次是温度。除环境因素外，废物成分和粒径也被确定为解释实验室系统与大型系统之间动力学差异的因素。总的来说，这项研究确定了那些最能影响堆肥过程动力学的因素，并显示出了减少大规模堆肥过程时间的显着优势。

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  • 来源
    《Waste management & research》 |2012年第7期|p.700-707|共8页
  • 作者

    Marco Baptista; Ana Silveira; Fernando Antunes;

  • 作者单位

    Departamento de Ciencias e Engenharia do Ambiente, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal,Unidade de Ambiente e Recursos Naturais, Instituto Nacional de Investigacao Agraria, Instituto Nacional de Recursos Biologicos, I.P.,Lisboa, Portugal;

    Departamento de Ciencias e Engenharia do Ambiente, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, Caparica, Portugal;

    Departamento e Centro de Qui'mica e Bioquimica, Faculdade de Ciencias da Universidade de Lisboa, Lisboa, Portugal;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composting; kinetics; rate constant; full-scale; food waste; particle size;

    机译：堆肥动力学;速率常数全尺寸食物浪费;粒径;

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