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首页> 外文期刊>Journal of Hazardous Materials >Deportment and management of metals produced during combustion of CCA-treated timbers
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Deportment and management of metals produced during combustion of CCA-treated timbers

机译：运送和管理经过CCA处理的木材燃烧过程中产生的金属

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摘要

Experiments were conducted to study CCA-treated wood combustion over a range of temperature and oxygen concentrations with a view to understanding the factors affecting energy and metals recovery from waste treated timber. CCA-treated wood was burned in a furnace at temperatures from 400 to 940℃ and oxygen concentrations between 5 and 21%. The ash and condensed volatiles were digested for total concentrations of metals and subjected to leaching tests to determine the stabilized concentrations of metals. Arsenic volatilisation increased with increasing furnace temperature whereas the copper and chromium reported mainly to the ash product. The effect of oxygen concentration was weak although it appeared that more arsenic volatilises at higher oxygen concentrations. However, a larger proportion of the arsenic in the ash generated at lower oxygen concentrations is solubilised during leaching tests, with the result that the concentration of stabilized arsenic in the ash is relatively unaffected by oxygen concentration.
机译：为了了解影响从废物处理过的木材中回收能源和金属的因素，进行了实验研究了在一定温度和氧气浓度下经过CCA处理的木材的燃烧情况。经CCA处理的木材在400至940℃的温度和氧气浓度为5％至21％的炉子中燃烧。消化灰分和冷凝的挥发物以获得金属的总浓度，并进行浸出试验以确定稳定的金属浓度。砷的挥发随炉温的升高而增加，而铜和铬则主要报告给灰分产品。尽管似乎在较高的氧气浓度下更多的砷挥发，但是氧气浓度的影响却微弱。然而，在较低的氧浓度下，在灰分中产生的灰分中的砷中的大部分溶解，结果是灰分中稳定的砷浓度不受氧浓度的影响。

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