D201树脂的SO_4^(2-)吸附及脱附性能

SO_4^(2-)adsorption and desorption performance on D201 macroreticular ion exchange resin

采用离子交换树脂吸附去除炼化废水中的SO_4^(2-),以静态吸附法对比凝胶型树脂和大孔型树脂的性能,并进一步探究最优树脂的SO_4^(2-)吸附和脱附再生性能。结果表明,大孔型树脂较凝胶型树脂在复杂水质情况下性能更稳定,最优树脂为D201树脂,有较稳定的饱和吸附容量和较好的吸附脱附性能。

Ion exchange resins were applied in the treatment of SO42-refining wastewater,the performances of the gel-type and macroreticular resins were compared by the static adsorption experimental method,and a further study of the most suitable resin adsorption,desorption,and regeneration performance was carried out. Experimental results show that macroreticular resins performed better and were more stable than gel-type resins in the treatment of complex wastewater,and D201 was the most suitable resin for SO_4^（2-）removal,because it had a stable saturated adsorption capacity and better adsorption and desorption performance.