摘要
采用静态吸附法和动态吸附法研究了强碱性阴离子交换纤维(简称纤-Ⅱ)对含铀矿井水的吸附行为,测定了接触时间、床层高度对吸附和淋洗的影响,以及铀在溶液和离子交换纤维中的平衡浓度。试验结果表明,纤-Ⅱ比201×7阴离子交换树脂吸附速度和淋洗速度快,吸附容量与201×7树脂相当;Na2CO3+NaHCO3作为淋洗剂淋洗效果好。纤-Ⅱ可以从含铀矿井水中回收铀,并使处理后的矿井水达标排放。
Methods of static adsorption and dynamic adsorption are used to study the adsorption of uranium-bearing pit water on ion exchange fibre. The effects of contact time, height of ion exchange fibre column, and balance of uranium between aqueous phase and fibre phase are investigated. It is indicated that ion exchange fibre presents advantages such as fast adsorption, fast elution, same capacity compared with ion exchange resin. 106 g/L Na2 CO3 ＋5 g/L NaHCO3 is a suitable eluant for ion exchange fibre. Therefore ion exchange fibre can be selected to process uranium-bearing pit water.
出处
《铀矿冶》
CAS
2012年第2期100-102,共3页
Uranium Mining and Metallurgy
关键词
离子交换纤维
铀
矿井水
ion exchange fibre
uranium
pit water
