摘要
采用垂直土柱易混置换法,就不同质地及不同的加溶质方式对氟在土中运移规律的影响进行了研究,结果表明:氟在黏粒含量高的土中的水动力弥散系数和阻滞因子均大于黏粒含量低的土,在溶质注入方式上,同时加NaF和NaCl混合液比单独加NaF溶液在浓度峰值到达时间上要来得慢些,浓度峰值也小,但在解吸过程中合加NaF溶液时淋出氟的浓度比单加溶液时要大。
The influence of different textures of soils to the transportation law for fluorin in soils is studied. The results indicate that the coefficient of hydraulic dispersion and the retardation factor for fluorin in the soil with high clay content is greater than those with low clay content, and that the reaching time for the peak value of fluorin content when the NaF and NaCl added is later than that when NaF added only and the peak value is also lower. In the way of input solute the fluorin content when NaF added is greater that when sodium chloride added only.
出处
《工程勘察》
CSCD
北大核心
2005年第5期15-17,共3页
Geotechnical Investigation & Surveying
基金
国家自然科学基金重点项目资助(50239010).
关键词
氟
土
溶质
运移规律
fluorin
soil
solute
transportation role
