Life cycle assessment of swine and dairy manure: Pyrolysis and combustion processes
Life cycle assessment of swine and dairy manure: Pyrolysis and combustion processes
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DOI：
10.1016/j.biortech.2015.01.140
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发表时间：
2015-04-01
影响因子：
11.4
通讯作者：
Sanchez-Silva, L.
中科院分区：
文献类型：
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作者：
Fernandez-Lopez, M.;Puig-Gamero, M.;Sanchez-Silva, L.
评估了三种不同粪便样品通过热解和燃烧过程的价值。乳制品粪便（样品 Pre）通过厌氧消化（样品 Dig R）进行生物预处理，而猪粪（样品 SW）通过生物干燥过程进行预处理。通过热重分析与质谱联用 (TGA-MS) 研究了粪便样品的热行为。这些过程可分为四个一般阶段：脱水、脱挥发分、炭转化（氧化燃烧）和无机物分解。样品之间观察到的主要差异归因于其不同的成分和预处理。通过生命周期评估（LCA）方法对乳制品样品热解和燃烧技术的经济可行性、能源和环境影响进行了评估。分析了四种不同的场景。热解过程的经济可行性得到了证明，样品 Dig R 是最佳的环境选择。然而，样品 Pre 的燃烧是最好的能量选择。 (c) 2015 Elsevier Ltd. 保留所有权利。
The valorization of three different manure samples via pyrolysis and combustion processes was evaluated. Dairy manure (sample Pre) was biologically pretreated by anaerobic digestion (sample Dig R) whereas swine manure (sample SW) was pretreated by a biodrying process. Thermal behavior of manure samples were studied by means of thermogravimetric analysis coupled with mass spectrometry (TGA-MS). These processes could be divided into four general stages: dehydration, devolatilization, char transformation (oxidation for combustion) and inorganic matter decomposition. The main differences observed among the samples were attributed to their different composition and pretreatment. The economic feasibility, energetic and environmental impacts of pyrolysis and combustion technologies for dairy samples were carried out by means of life cycle assessment (LCA) methodology. Four different scenarios were analyzed. The economic feasibility of the pyrolysis process was demonstrated, being sample Dig R the best environmental option. However, the combustion of sample Pre was the best energetic option. (c) 2015 Elsevier Ltd. All rights reserved.