Chemical industry production produces a large amount of waste salt to result in environmental pollution due to lack of proper treatment processes. Landfill is presently the main disposal method of waste salts in China, which is impossible to recycle the waste salt. This paper introduces two approaches to waste salt recycling and treatments in detail, that is, the high temperature pyrolysis+brine purification process and the resin adsorption+advanced oxidation process Several application cases are taken to analyze and find the reason for their low rates of waste salt resource utilization. It turns out that the treatment and reuse of waste salt lack related standards and regulations, on the other hand, economical and practical technology for massive application is still unavailable. Therefore some constructive suggestions are put forward, including the industrial waste salt discharge amount should be reduced to some extent to realize waste salt recycling, new method should be developed, and new laws should be published for utilization of waste salt.

chemical industry  /  industrial waste salt  /  resource utilization  /  treatment