摘要
The occurrence of fluorosis in Gaomi City is among the highest regions in China.High fluoride groundwater occurrence in Quaternary sediments originated from the weathering residuals of Cretaceous volcano clastic rock. The origin of high fluoride groundwater in Gaomi City was summarized as the following 2 model: one is leaching and enrichment, the other one is evaporation and condensation in alkali condition. Based on the analysis of the local environment and the mechanism of fluoride enrichment,a method of “insitu dispelling' was proposed and confirmed through laboratory leaching test. This might be economical and feasible method for the removal of fluorine from the local strata.
