摘要为了对含汞废水的电吸附处理条件进行研究,首先要对废水中的汞离子浓度进行测定,并对除汞方法进行一定了解。本文采用活性炭纤维对废水中的汞离子进行电吸附。首先采用500ml 的100,500,1000μg/L浓度的含汞废水进行实验,确定1000μg/L的含汞废水可以被吸附饱和。再通过改变电压和电解质浓度来研究最佳的电吸附条件。研究结果表明:在2V电压下活性炭纤维电吸附除汞离子的效果最好,可以达到99。7%的处理效率。得出水中存在氯离子会对活性炭纤维电吸附除汞产生较大的抑制作用,水中氯离子的浓度越大,活性炭纤维电吸附的处理效果就越差。所以在工业生产或者研究实验中应当尽量避免氯离子的进入以免对吸附产生较大的影响。还得出废水在实际操作时需要控制好流量,适当增加废水在反应器停留时间。73645
In order to electric adsorption condition for the research of mercury containing waste water, first of all to the mercury ion concentration in the wastewater was determined, and the method of understanding on mercury removal。 In this paper, the use of activated carbon fiber wastewater mercury ions electric absorption。 Firstly, 500ml of 100,500,1000μg / L concentration of mercury wastewater experiments to determine 1000μg / L of mercury-containing waste water can be adsorbed saturated。 And then by changing the voltage and electrolyte concentration to study the optimum electrical adsorption conditions。 Research results show that: At 2V voltage electrical activated carbon fiber adsorption efficiency of mercury removal ion best, can reach 99。7%。 Also the presence of chloride ions derived activated carbon fiber electric water will have a greater mercury removal adsorption inhibition, the greater the concentration of chloride ions in water, the treatment effect of adsorption on activated carbon fiber electric worse。 Therefore, in the industrial production or research experiments should be avoided so as not to enter the chlorine ions have a greater impact on the adsorption。 Wastewater is also drawn in the actual operation need to control the flow, due to increase in water reactor residence time。
毕业论文关键词:活性炭纤维; 电吸附;除汞;废水处理;Hg2+
Keyword: ACF; Electric adsorption; Removal of mercury;Wastewater Treatment;Hg2+
目 录
1。引言 4
1。1含汞废水的来源 4
1。2含汞废水的危害 4
1。2。1汞对植物的危害 4
1。2。2汞对动物的危害 4
1。4现有处理技术 5
2研究方法 6
2。1研究对象 6
2。2技术路线图 7
2。3实验方法 7
2。4实验步骤 8
3实验结果 10
3。1不同浓度,相同电压,活性炭纤维静态电吸附除汞的效果研究。 10
3。2不同电压,相同浓度,活性炭纤维静态电吸附除汞的效果研究。 11
3。3不同电解质浓度,相同汞浓度,相同电压活性炭纤维静态电吸附除汞的效果研究。 14
3。4动态吸附实验 18
4结论 19
参考文献 ACF电吸附处理含汞废水条件研究:http://www.youerw.com/huaxue/lunwen_84048.html