The composting of tree bark in small reactors—adiabatic and fixed-temperature experiments

C.D. Campbell, J.F. Darbyshire, J.G. Anderson
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引用次数: 23

Abstract

The effect of temperature on the composting of bark in adiabatic and fixed-temperature reactors was studied with respect to decomposition, loss of phytotoxicity and a reduction in the production of Aspergillus fumigatus spores. High temperatures could be maintained for long periods using an adiabatic reactor and the temperature could be controlled by aeration. In fixed-temperature reactors, the optimal temperature for decomposition was either 40 or 50°C. Phytotoxicity, as determined by an in-vitro seedling assay, was reduced more quickly by 50°C composting than by 40°C. In addition the growth and sporulation of a potential human pathogen, Aspergillus fumigatus, was less at 50°C than at 40°C.

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树皮在小反应器中的堆肥——绝热和定温实验
研究了温度对树皮在绝热和定温反应器中堆肥的分解、植物毒性丧失和烟曲霉孢子产量减少的影响。使用绝热反应器可以长时间保持高温,并且可以通过曝气来控制温度。在固定温度反应器中,分解的最佳温度为40℃或50℃。通过体外幼苗试验确定,50°C堆肥比40°C堆肥更快地降低了植物毒性。此外,一种潜在的人类病原体烟曲霉(Aspergillus fumigatus)在50°C下的生长和产孢量低于40°C。
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