三聚硫氰酸三钠盐对水溶液中Cd^(2+)、Hg^(2+)的吸附研究  

Study on Adsorption of Cd^(2+)、Hg^(2+)in Aqueous Solution by Trisodium Trithiocyanate

作　　者：郭巧静 GUO Qiaojing(Shanxi Provincial Institute of Chemical Industry(Co.,Ltd.,),Jinzhong 030600,China)

机构地区：[1]山西省化工研究所(有限公司),山西晋中030600

出　　处：《河南化工》2022年第10期24-26,共3页Henan Chemical Industry

摘　　要：使用三聚硫氰酸三钠盐(TMT)作吸附剂,对Cd^(2+)、Hg^(2+)水溶液(浓度100 mg/L)进行吸附处理。研究了溶液pH值、温度、TMT用量以及吸附时间对重金属离子去除率的影响,得到了吸附Cd^(2+)、Hg^(2+)的最佳吸附条件,并采用能谱仪对其沉淀物进行了分析表征。结果表明:吸附剂的使用量为60 mg,pH值为7,吸附时间为5 h时,吸附效果最佳。当吸附温度为30℃时,Cd^(2+)的去除率达到98.88%。吸附温度为20℃时,Hg^(2+)的去除率达到97.44%。Trisodium trithiocyanate(TMT)is used as an adsorbent to adsorb 100 mg/L Cd^(2+)、Hg^(2+)aqueous solution.The effects of pH value,temperature,TMT dosage and adsorption time on the removal rate of heavy metal ions are studied.The optimum adsorption conditions for Cd^(2+)、Hg^(2+)are obtained,and the precipitates are analyzed and characterized by energy dispersive spectrometer.The results show that when the amount of adsorbent is 60 mg,the pH value is 7 and the adsorption time is 5 h,the adsorption effect is the best.When the adsorption temperature is 30℃,the removal rate of Cd^(2+)reaches 98.88%.When the adsorption temperature is 20℃,the removal rate of Hg^(2+)reaches 97.44%.

关 键 词：三聚硫氰酸三钠盐 重金属处理 吸附 

分 类 号：TQ424.29[化学工程] X78[环境科学与工程—环境工程]