固相萃取柱填料对固体废物中盐分分离的影响  

Effect of Solid Phase Extraction Column Packing Material On Solid Waste Metallic Ion Separation

作　　者：黄志娣 HUANG Zhidi

机构地区：[1]广州环投设计研究院有限公司,广东广州511300

出　　处：《化工设计通讯》2024年第7期99-101,105,共4页Chemical Engineering Design Communications

摘　　要：采用固相萃取法分离固体废物试样中的Be、As、Se、Cd、Cu、Zn、Ba、Cr、Ni和Pb等10种金属离子,并用电感耦合等离子发射光谱仪和电感耦合等离子质谱仪对被分离样品进行了测定。实验表明:当样品溶液的pH约为1时,各元素在SCX/PSA比例为60/40填料上达到定量吸附;使用3 mL浓度为3 mol/L的硝酸可将吸附的离子洗脱完毕;填料的吸附容量为0.28 mmol(Cu)/g填料;该方案应用于生活垃圾飞灰和炉渣中Be、As、Se、Cd、Cu、Zn、Ba、Cr、Ni和Pb等10种元素的测定,结果满足标准要求。Ten metallic ions including Be,As,Se,Cd,Cu,Zn,Ba,Cr,Ni,and Pb in the solid waste samples were separated by Solid phase extraction columns,and tested by an inductively coupled plasma emission spectrometer and an inductively coupled plasma mass spectrometer.Results showed that:the solution pH value was about 1,each element could be quantitatively recovered on the packing material;Metallic ions could be eluted using 3 mL of 3 mol/L nitric acid.The adsorption capacity of the packing material is 0.28mmol(Cu)/g dry packing material.This method was applied to MSWI Fly Ash Solidification Wastes and MSW incinerator residue,testing 10 elements including Be,As,Se,Cd,Cu,Zn,Ba,Cr,Ni and Pb,and the results meet the standard requirements.

关 键 词：固体废物 固相萃取法 金属离子 填料 

分 类 号：X703.5[环境科学与工程—环境工程]