摘要
Abstract
The thiol group has good coordination ability with antimony,so researchers grafted the thiol group onto the designed molecular framework to synthesize a new heavy metal scavenger(HMC-1).The experiment uses HMC-1 to treat Sb(Ⅴ)in printing and dyeing wastewater,and studies the effects of different HMC-1 dosages,pH,and coexisting ions on the removal efficiency of Sb(Ⅴ).The experimental results show that under optimal conditions,the dosage of HMC-1 is 100 mg/L,pH is 4.0±0.2,and the concentration of coexisting anions is 0 mg/L,and the removal rate of Sb(Ⅴ)can reach 92.33%,and the concentration of Sb(Ⅴ)can be reduced from 3.00 mg/L to 0.23 mg/L.After the treatment of printing and dyeing wastewater,the effluent meets the requirements of the"Industrial Pollutant Discharge Standards for Tin,Antimony,and Mercury"(GB 30770-2014).Compared with other treatment methods,this heavy metal capture agent has better removal efficiency for Sb(Ⅴ)in wastewater,fast treatment speed,small dosage,and low cost,which has good market application prospects.关键词
巯基嫁接/重金属捕捉剂/除锑Key words
thiol grafting/heavy metal capture agents/antimony removal分类
资源环境
