The Composition and Use Value of Tree Biomass Ash
The Composition and Use Value of Tree Biomass Ash
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树木生物质灰的成分及利用价值
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Lazdiņš
中科院分区：
文献类型：
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作者：
M. Okmanis;D. Lazdiņa;A. Lazdiņš
摘要 随着越来越多的生物质用于能源生产，木灰填埋问题不仅在拉脱维亚而且在全世界都日益严重。利用木材燃烧废物作为肥料已在世界范围内使用，但缺乏有关从拉脱维亚植物中获得的木灰化学成分的信息，因此本研究的目的是确定化学成分并分析从拉脱维亚植物中获得的木灰的可能利用方案。为此，采集了53家企业的木灰样品，进行筛选并测定样品的化学成分。结论是，在炉子容量较高的情况下，观察到木灰的粗颗粒部分较多，其作为肥料的价值较低。木灰是很好的石灰材料，含有碱化合物和其他生物元素，还含有重金属，这些都是污染物，可能会导致环境问题。
Abstract Wood-based ash landfilling is increasing issue not only in Latvia but in the whole world as more biomass is used for energy production. Utilization of wood burning waste as fertilizer is already used worldwide, but there is lack of information about chemical composition of wood ash obtained from Latvia plants, so the aim of this study was to determine chemical composition and analyse possible utilization options of wood-based ash from Latvia plants. Therefore wood ash samples from 53 companies were collected, sieved and chemical composition of samples was determined. It was concluded that within higher capacity of furnace more coarse fraction of wood ash was observed which is less valuable as fertilizer. Wood ash is good liming material consisting alkali compounds and other biogenic elements but also heavy metals, which are pollutants and could cause environmental problems.