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| 717阴离子交换树脂吸附高盐废水中金的性能研究 |
| Study on the adsorption performance of 717 anion resin for gold in high-salt waste water |
| 投稿时间：2022-03-14 |
| DOI： |
| 中文关键词: 化学冶金 高盐度废水 树脂吸附 金 动力学 |
| 英文关键词: chemical metallurgy high-salt waste water resin adsorption gold kinetics |
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| 摘要点击次数: 1275 |
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| 中文摘要: |
| 研究了717阴离子交换树脂吸附高盐度废水中金的性能，考察了pH、吸附时间及树脂用量对树脂吸附金的影响。结果表明，pH值对吸附率影响较大，pH=2时，经60 min吸附，1.0 g树脂对100 mL金浓度为10.6 mg/L高盐废液中金的吸附率达95%以上；树脂对金的静态饱和吸附量为241 mg/g；吸附反应符合准二级反应动力学模型，升高温度对金的吸附有利，表观活化能Ea=21.3 kJ/mol。 |
| 英文摘要: |
| The adsorption performance of 717 anion exchange resin for goldin high-salt waste water was studied. The effects of pH value, adsorption time and resin dosage on the gold adsorption were investigated. The results showed that the pH value had a great influence on the adsorption rate. When pH=2, after 60 min adsorption, the adsorption rate of 1.0 g resin to 100 mL high-salt wastewater with 10.6 mg/L gold was more than 95%. The static saturated adsorption capacity of the resin is 241 mg/g. Elevated temperature is favorable to gold adsorption. Adsorption kinetics study showed that the adsorption followed the second-order kinetics model, and that the reaction apparent activation energy calculated is 21.3 kJ/mol. |
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