大蒜渣生物质材料对铀的吸附性能研究  

Study on the Adsorption Property for Uranium by Garlic Dregs Biomass Material

作　　者：王扬[1] 牛洁[1] 徐乐昌[1] WANG Yang;NIU Jie;XU Lechang(Beijing Research Institute of Chemical Engineering and Metallurgy,Beijing 101149,China)

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《铀矿冶》2020年第4期278-281,共4页Uranium Mining and Metallurgy

摘　　要：以大蒜渣(DSZ)为原料,对其处理后用于含铀废水的吸附研究。对DSZ生物质材料吸附铀的影响因素进行了考察,结果表明:在溶液pH=6、接触反应时间60 min、反应温度20℃、固液质量体积比5 g/L的条件下,DSZ材料对铀具有良好的吸附效果;当铀初始质量浓度为20~100 mg/L时,随铀初始浓度的增大,DSZ材料对铀的吸附量增大,但对铀的去除率降低。采用某实际水样进行了柱动态试验,DSZ材料在铀初始质量浓度为2 mg/L、pH=6.5的条件下,稳定运行了192 h,工作容量为2.4 mg/g,操作性能良好。Garlic dregs(DSZ)was used as biomass material to study the adsorption of uranium-containing wastewater after treatment,the results show that when the solution pH is 6,the contact reaction time is 60 min,the reaction temperature is 20℃and the solid-liquid mass-volume ratio is 0.5 g/100 mL,DSZ has a good adsorption effect on uranium.When the initial concentration of uranium is in the range of 20~100 mg/L,the removal rate of DSZ decreases with the increase of the initial concentration of uranium.A column dynamic test was carried out on a real water sample.DSZ was operated stably for 192 h at the initial uranium concentration of 2 mg/L,pH=6.5,the working capacity of DSZ was 2.4 mg/g and the operation performance was good.

关 键 词：大蒜渣 铀 生物质吸附剂 

分 类 号：X703[环境科学与工程—环境工程]