The excessive fluorine content in ash-sluicing water has become one of the main environmental pollution problems in the thermal power generation industry. This study selected 5 representative soil types and used fluoride ions (F-) as the pollution control factor. The experimental
results showed that the isotherms of the F- solutions prepared by deionized water (adsorbed by Jianbi clay and Fengrun sandy soil) and ash-sluicing water all conformed to the Langmuir isothermal adsorption equation. In terms of the F- solution prepared with ash-sluicing
water, the adsorption isotherm of Tianshengqiao red clay conformed to the Langmuir isothermal adsorption equation; the adsorption isotherms of Beijing silty soil and Fen River loess conformed to the Henry isothermal adsorption equation. In terms of the maximum adsorption capacity, Tianshengqiao
red clay > Jianbi clay > Beijing silty soil ? Fen River loess > Fengrun sandy soil. Through the experiments, we also found that the adsorption capacity decreased with increasing pH, and the pH buffering effects of the 5 soils, from high to low, were Tianshengqiao red clay > Jianbi
clay > Beijing silty soil > Fen River loess > Fengrun sandy soil.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.