Pilot Experiment of Rotary Thermal Desorption of Polluted Clay Soil
In order to conduct engineering of thermal desorption, it is necessary to conduct pilot experiment of rotary thermal desorption of polluted soil. In this paper, the working condition of rotary thermal desorber was investigated. The effect of rotary speed on temperature, residence time of soil and dehydrated content (TH) was determined. It illustrated that the thermal system could achieve stable operation. It also showed that optimum preheating time and soil transporting frequency was 80 min and 5 Hz, respectively. Under the optimum condition, TH was 94.83％ and residence time of soil was 3 min. Moreover, problems such as efficient quantity of dust in the secondary combustion system and tending to producing soil dust at the soil outlet were found within present thermal desorption system. Recommendations include spray device at the soil outlet to increase the soil moisture and suppressing dust and fixing simple dust collector before the axial flow fan to reduce the quantities of dust in the secondary combustion system.
thermal desorption rotary soil pilot experiment
Guolong GAO Jianguo JIANG Wang ZHANG
School of Environment, Tsinglma University, Beijing, China, 100084 School of Environment, Tsinglma University, Beijing, China, 100084 Key Laboratory forSolid Waste Man
国际会议
The Sixth International Conference on Waste Management and Technology(第六届固体废物管理与技术国际会议 ICWMT 6)
苏州
英文
135-138
2011-08-30（万方平台首次上网日期，不代表论文的发表时间）