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The fluoride removal performance of GW-F90 resin was studied through static and dynamic tests, and the effects of adsorption time, initial fluoride concentration, pH and impurity ions on the fluoride removal performance of the resin were investigated. The influence of different desorbers on the desorption performance of the resin was investigated, and the mechanism of fluoride removal of the resin was determined. The research shows that the dynamic adsorption capacity of GW-F90 resin is 75.3 mg/g, the fluoride removal rate of the resin single adsorption can reach 92.7%, and the desorption rate is 98.7% when 10% sodium hydroxide solution is used to desorb the resin. GW-F90 resin has good selectivity and fluoride removal performance, and can effectively remove fluoride from fluoride-containing water.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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