- 上一篇：核工业废水中硝酸盐的催化分解
- 下一篇：小分子氨基硝酸离子液体在硝化反应中的应用研究
摘要本论文主要内容为制备脲醛树脂来处理含Pb2+废水和Sr2+废水，通过对脲醛树脂用量、吸附时间、溶液PH值探讨脲醛树脂对Pb2+和Sr2+的吸附性能。
(1)以尿素和甲醛为原料合成了尿醛树脂，通过调节尿素和甲醛的加入量 合成不同F/U比的尿醛树脂。
(2)采用紫外分光光度计对尿醛树脂吸附Pb2+的性能进行了研究，得到了最佳吸附条件。结果表明在Pb2+初始浓度为100mg/L，UF树脂处理Pb2+废水的最佳条件为：UF树脂用量为8.0g，反应时间为24h， pH为不低于4.0。且UF树脂对Pb2+的吸附符合Langmuir等温线方程 。64568
(3)采用紫外分光光度计对尿醛树脂吸附Sr2+的性能进行了研究，得到了最佳吸附条件。结果表明在Sr2+初始浓度为100mg/L，UF树脂处理Sr2+废水的最佳条件为：UF树脂用量为6.0g，反应时间为21h， pH为不低于1.0,且UF树脂对Pb2+的吸附符合Langmuir等温线方程 。
毕业论文关键词 脲醛树脂 重金属离子 放射性核素 吸附性能
毕业设计说明书（论文）外文摘要
Title Adsorption of Pb2+, Sr2+ by urea-formaldehyde resin
Abstract
The major content in this dissertation is to deal with the wastewater, which contain Pb2+ and Sr2+ by compounding urea-formaldehyde resin, what the properties of urea-formaldehyde resin of Pb2+ and Sr2+ adsorption has been investigated by the amount of urea-formaldehyde resin, adsorption time, the PH value.
（1）Urea and formaldehyde as raw materials to compound urea-formaldehyde resins, then different F/U ratio of urea-formaldehyde resins is compounded by adjusting the amount of added Urea and formaldehyde.
（2）Urea-formaldehyde resin adsorption of Pb2+ properties is researched by UV spectrophotometer in order to acquire the optimum adsorption conditions. What the results shows that initial concentration of Pb2+ by 100mg/L, the optimum conditions of UF resin treatment wastewater contain Pb2+ : UF resin, the dosage of which is by 8.0g, the reaction time is 24h,the pH value is not less than 4.0, meanwhile UF resin adsorption of Pb2+ coincide with the Langmuir isotherm equation.
（3）Urea-formaldehyde resin adsorption of Sr2+ properties were investigated by UV spectrophotometer for the sake of acquiring the optimum adsorption conditions. The results shows that the initial concentration of by Sr2+ 100mg/L, the optimal conditions of UF resin dispose wastewater contain Sr2+: UF resin, the dosage of which is by 6.0g, the reaction time was 21h,the pH is not less than 1.0, in addition, the UF resin adsorption of Pb2+ fit well with the Langmuir isotherm equation.
Keywords urea-formaldehyde resin heavy metal ions radionuclide adsorption
1绪论 1
1.1 重金属废水概况 1
1.2 国内外对含Pb2+、Sr2+废水的处理方法研究现状 2
1.3 脲醛树脂概述 7
1.4 本论文的研究内容及意义 10
2脲醛树脂对Pb2+的吸附研究 11
2.1 引言 11
2.2 实验部分 11
2.3 结果与讨论 12
2.4 本章小结 16
3脲醛树脂对Sr2+的吸附研究
-
基于非对称六羧基配体的...
-
含脲基的金属-有机框架材...
-
高频导磁体对填充式电化学反应器性能的影响
-
NHC-Pd化合物在催化溴代苯...
-
金属改性芦苇活性炭对重金属的吸附性能研究
-
微生物菌剂对污泥好氧发...
-
基于醚四酸MOFs的构筑及其对pH的传感
十二层带中心支撑钢结构...
中考体育项目与体育教学合理结合的研究
大众媒体对公共政策制定的影响
河岸冲刷和泥沙淤积的监测国内外研究现状
酸性水汽提装置总汽提塔设计+CAD图纸
java+mysql车辆管理系统的设计+源代码
当代大学生慈善意识研究+文献综述
电站锅炉暖风器设计任务书
杂拟谷盗体内共生菌沃尔...
乳业同业并购式全产业链...