核电站含硼废液的处理方法研究
关键词 脲醛树脂 硼 吸附效果
毕业论文设计说明书（论文）外文摘要
Title Urea-FormaldehydeResin Adsorption of Boron
Abstract
The adsorption capacity of urea-formaldehyde resin on boron under different reaction time, temperature, pH conditions were mainly introduced.And the adsorption ability of urea-formaldehyde resin on boron of constant temperature incubator shaker controller and shear mixer two experimental apparatus were compared. urea-formaldehyde resin on boron, the ratio of urea and formaldehyde in urea-formaldehyde resin to adsorbing capacity were preliminary explorated. The results show that, the reaction of urea-formaldehyde resin to boron-containing waste was endothermic reaction, the higher the temperature, the more strongly alkaline, the higher the F/U in the urea-formaldehyde resin, urea-formaldehyde resin adsorption of boron, the better. shear mixer experimental apparatus are more favourable for reaction process. After the shear mixer shear，the adsorbing capacity of urea-formaldehyde resin on boron increase rate of 48.2%.
Keywords urea-formaldehyde resin boron adsorption
目次
1 绪论 1
1.1核电站含硼废水的来源 1
1.2硼的危害 1
1.3硼的排放标准 1
1.4含硼废液的处理技术 2
1.5树脂吸附法的优点 4
2 脲醛树脂对含硼溶液的吸附研究 4
2.1实验仪器及试剂 4
2.2硼的标准曲线的绘制 5
2.2.1实验方法： 5
2.2.2实验仪器： 5
2.2.3实验步骤： 5
2.3脲醛树脂对硼的吸附效果的研究 6
2.3.1脲醛树脂的合成 6
2.3.2 溶液浓度对脲醛树脂吸附性能的影响 6
3 结果与分析 7
3.1脲醛树脂对硼的振荡吸附实验 7
3.2强力剪切对硼吸附性能的影响实验 13
3.2.1强力剪切与恒温振荡的对吸附效果的对比研究 13
3.2.2 脲醛树脂对高浓度含硼废水的吸附 13
结论 15
致谢 16
参考文献 17
1 绪论
1.1核电站含硼废水的来源
含硼废液是核电站运行和文修过程中无法避免的产物。硼及硼化合物在核电站运行中起到了巨大的作用，在压水堆核电站中，硼及硼化合物作为“冷却剂”用于核反应堆，即在压水堆核电站运行过程中，通过向反应堆中添加硼酸来控制其反应性，并且当换料或检修时也会向堆芯注入大量硼酸溶液保证反应堆的安全性[1]。通过废水处理系统处理后，硼酸会随核电厂其他放射性核素的废水一起到排入环境中。一座106kW的压水堆核电站，每年排放约132m3含硼7000mg/L的硼酸废液[2]。随着我国核电事业的蓬勃发展，大量含硼废液的排放对环境的影响受到了极其广泛的关注。