A PROCESS FOR REMOVAL OF SULFIDES IN THE AQUEOUS SPENT CAUSTIC STREAMS

摘要

The present invention relates to the development of process technology for the removal of sulfides in the aqueous spent caustic solutions and finding the active metals, metal oxides and support systems. The process developed is simple, efficient and energy intensive and a complete solution for treatment of sulphides and phenols in the aqueous spent caustic streams. The described invention also relates to the process design of the suitable pre-treatment method(s) for the removal sulphides in the aqueous spent caustic streams.