金属矿物对丁铵黑药在饱和多孔介质中迁移特性的影响  

Effect of Metallic Minerals on Transport Characteristics of Ammonium Dibutyl Dithiophosphate in Saturated Porous Media

作　　者：冯宇庭 成丽 王可媚 胡恩柱 FENG Yu-ting;CHENG Li;WANG Ke-mei;HU En-zhu(School of Metallurgy,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学冶金学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2024年第3期401-406,共6页Journal of Northeastern University(Natural Science)

基　　金：国家重点研发计划项目(2020YFC1806400,2018YFC1801200);中央高校基本科研业务费专项资金资助项目(N2225037).

摘　　要：以丁铵黑药(ADD)为研究对象,基于饱和土柱迁移实验和数学模型,探究石英砂表面金属负载种类和负载量对ADD迁移规律的影响.结果表明,在石英砂表面负载针铁矿(w(Fe)为0.028%和0.042%),不会影响ADD的迁移.在介质上继续负载氧化铜,ADD与矿物表面的Cu2+反应生成Cu-ADD络合物,抑制了ADD的迁移.并且随着w(Cu)从0.0018%增加到0.0055%,ADD的回收率从44.32%下降至8.85%.在w(Cu)为0.0018%时,随着ADD质量浓度从20 mg/L增加到60 mg/L,其回收率提高至63.64%.Taking ammonium dibutyl dithiophosphate(ADD)as the research object,based on the saturated soil column migration experiment and mathematical model,the effects of the type and amount of metal loading on the surface of quartz sand on the migration law of ADD were explored.The results show that the migration of ADD is not affected by the loading of goethite on the surface of quartz sand(iron content 0.028%and 0.042%).However,when CuO was coated on sand surface subsequently,ADD reacted with Cu2+on the surface of the minerals,forming Cu‑ADD complex,which restrained the transport of ADD.With the increase of copper content from 0.0018%to 0.0055%,the recovery rate of ADD decreased from 44.32%to 8.85%.When the copper content is 0.0018%,the recovery rate increases to 63.64%as the mass concentration of ADD increases from 20 mg/L to 60 mg/L.

关 键 词：丁铵黑药 针铁矿 氧化铜 迁移 数学模型 

分 类 号：X53[环境科学与工程—环境工程]