Journal of Northeastern University(Natural Science) ›› 2024, Vol. 45 ›› Issue (3): 401-406.DOI: 10.12068/j.issn.1005-3026.2024.03.012

• Resources & Civil Engineering • Previous Articles     Next Articles

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

Yu-ting FENG, Li CHENG, Ke-mei WANG, En-zhu HU()   

  1. School of Metallurgy,Northeastern University,Shenyang 110819,China.
  • Received:2022-10-31 Online:2024-03-15 Published:2024-05-17
  • Contact: En-zhu HU
  • About author:HU En-zhu, E-mail: huez@smm.neu.edu.cn

Abstract:

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 0.001 8% to 0.005 5%, the recovery rate of ADD decreased from 44.32% to 8.85%. When the copper content is 0.001 8%, the recovery rate increases to 63.64% as the mass concentration of ADD increases from 20 mg/L to 60 mg/L.

Key words: ammonium dibutyl dithiophosphate, goethite, copper oxide, transport, mathematic model

CLC Number: