Research progress and inspiration on the generation and treatment technology of chemical waste salt
This study summarized the research status of production characteristics and current treatment technologies for chemical waste salt in key industries,such as pesticides,pharmaceuticals,printing and dyeing,and coal chemical industry in China.This study analyzed the characteristics and implementation effects of existing treatment technologies for chemical waste salt from the perspectives of heat treatment and deep treatment.Standardized and efficient resource utilization was the ultimate goal of chemical waste salt management in China.The main problems in the resource utilization of chemical waste salt in China were summarized from two aspects,namely management policies and treatment technologies.Detailed problems included the lack of pollution control limits in the product standards for the resource utilization of chemical waste salt,loopholes in the resource utilization system,limited resource utilization pathways for consuming a large amount of recycled salt,lacking risk assessment and detection system for regenerated salt,and urgent requirement for efficient and low-energy treatment technologies.Finally,countermeasures and suggestions were proposed to address the above issues.
chemical waste saltproduction characteristicstreatment technologyreclaimed salt