Inorganic Chemicals Industry ›› 2022, Vol. 54 ›› Issue (11): 25-31.doi: 10.19964/j.issn.1006-4990.2021-0774

• Reviews and Special Topics • Previous Articles     Next Articles

Current situation of waste salt generation and research progress on resource utilization in chemical industry

GAO Run(),YIN Jin(),ZHANG Nan,GAO Ting,LIU Ruiyong   

  1. College of Environmental Science and Engineering,Yangzhou University,Yangzhou 225009,China
  • Received:2022-02-08 Online:2022-11-10 Published:2022-11-23
  • Contact: YIN Jin E-mail:1028927418@qq.com;yinjin@yzu.edu.cn

Abstract:

The amount of waste salt in China is large,the source is wide and difficult to be treated,so it is of great significance to study the recycling and disposal of waste salt.The sources,classification and properties of chemical waste salt were summarized,and the current treatment and disposal policies and problems of waste salt were listed.The disposal technology and research progress of waste salt in pesticide,medicine,printing and dyeing,coal chemical industry and epoxy resin five high-yield industries were discussed.In order to provide some reference for the recycling of waste salt in related industries,the new ideas of classifying resource utilization according to different industries,improving the removal rate of organic matter and conversion efficiency of chemical reaction,and realizing source emission reduction and raw material recovery and reuse were put forward.

Key words: chemical waste salt, treatment and disposal, resource utilization

CLC Number: