摘要为了对含汞废水的处理进行研究，首先要对废水中的汞含量进行测定，并对除汞方法进行一定了解，本文分别使用DTC 、TMT-15、Na2S对含汞废水进行处理。首先研究了使用各种除汞剂除汞的最佳pH、与最佳投加量，再以除汞效率最佳的条件下研究氯离子对除汞效率的影响。研究结果表明：Na2S的最佳投加量为15mg/L，最佳pH为10。此时，1mol硫离子去除了0.06molHg，是理论剂量的15倍； TMT的浓度为1g/L或DTC浓度为100mg/L时，汞的去除效果最佳，分别为89.5%和99.5%。氯离子浓度从0到10mg/L，除汞剂为Na2S情况下，Hg的去除率下降了26%；除汞剂为DTC（10mg/L、100mg/L、1g/L）情况下，Hg的去除率分别下降了5.5%、 3.9%、3.8%；除汞剂为TMT（10mg/L、100mg/L、1g/L）情况下，Hg的去除率分别下降了6%、5.1%、5.1%。加入氯离子后，Hg+去除效率下降，并随着氯离子浓度升高，Hg+去除效率下降，氯离子浓度变化对Na2S的除汞效率较大，对DTC、TMT-15的除汞效率变化较小。46798
In order to deal with the waste water containing mercury study, first of all to the mercury content in waste water was determined, and the mercury removal method of a certain understanding, this paper uses DTC, TMT-15, Na2S treatment of mercury containing waste water. Firstly, the mercury removal agent pH, the removal of mercury and the best dosageused, again with the best efficiency of mercury chloride ion effect on the mercury removalefficiency. The results of the study show that: Na2S optimal dosage is 15mg / L, the optimal pH is 10. At this time, 1mol sulfide removed 0.06molHg, is 15 times the theoretical dose; concentration of TMT is 1g / L or DTC concentration of 100mg / L, the optimal removal efficiency of mercury, were 89.5% and 99.5%. Chloride concentration from 0 to 10mg / L, Na2S mercury removal agent is the case, Hg removal rate decreased by 26%; removed amalgam to DTC (10mg / L, 100mg / L, 1g / L) conditions, Hg of removal rate decreased by 5.5%, 3.9%, 3.8%; mercury removal agent under the TMT (10mg / L, 100mg / L, 1g / L) case, Hg removal decreased by 6%, 5.1%, 5.1% . After the addition of chloride ions, Hg + removal efficiency decreases, and as the chloride ion concentration, Hg + removal efficiency decreases, changes in the concentration of chloride ions on mercury removal efficiency greater Na2S smaller for DTC, mercury removal efficiency of the TMT-15 changes.
毕业论文关键词：环境工程学； 废水处理； DTC； TMT-15； Hg2+； 除汞
Keyword: Environmental Engineering; wastewater treatment; DTC; TMT-15; Hg2+; removal of mercury
目 录
1引言 2
1.1 含汞废水的来源 2
1.2 含汞废水的危害 3
1.4 现有含汞废水处理技术 4
2 研究方法 5
2.1 研究对象 5
2.2 技术路线图： 5
2.3研究方案 5
2.3.1实验方法 5
2.3.2 实验步骤 6
3 实验结果 6
3.1 硫化钠最佳除汞效率研究 6
3.2 TMT-15处理 8
3.3 DTC处理 9
3.4 氯离子影响 9
4 结论 10
参考文献 11
1引言
1.1 含汞废水的来源 氯离子对含汞废水处理影响研究:http://www.youerw.com/huaxue/lunwen_48602.html