摘要
以亲水性悬臂键连3-氨基吡啶的聚苯乙烯型螯合树脂(PS-DEG-3AP)为吸附剂,通过柱试验方法系统研究了柱分离参数对Hg2+的回收率的影响。结果表明,当树脂用量、进样体积、进样体积流量、解吸液体积流量分别为100 mg、30 mL、1 mL/min、0.5 mL/min时,树脂对水溶液中的Hg2+皆能达到定量回收。过量的碱金属、碱土金属及重金属离子对Hg2+回收率略有影响,回收率均大于90%;树脂重复利用5次后对Hg2+的回收率略有下降。
By using the chelating resin containing hydrophilic spacer and 3-amiono pyridine as adsorbent,removal of Hg2+ in water solution was investigated through column method.The results showed that: when the amount of resin,sample volume,sample flow rate,elution flow rate were 100 mg,30 mL,1 mL/min,0.5 mL/min respectively,Hg2+ in water solution could be recovered quantitatively.Excessive amount of alkali metals,alkaline earth metal and heavy metal ions slightly affected the recovery rate of Hg2+,which was more than 90%.Five consecutive sorption-desorption cycles demonstrated that recovery of Hg2+ was slightly low.
出处
《水处理技术》
CAS
CSCD
北大核心
2012年第7期30-32,共3页
Technology of Water Treatment
基金
国家自然科学基金(51073075)
山东省自然科学基金(Y2007B19)
鲁东大学科研基金(LY20082902)
关键词
螯合树脂
亲水性悬臂
3-氨基吡啶
回收率
柱试验
chelating resin
hydrophilic spacer
3-amiono pyridine
recovery
column method