METHOD FOR TREATING WASTEWATER PRODUCED DURING THE MANUFACTURE OF NITRO COMPOUNDS

摘要

The present invention relates to a method for treating wastewater produced during the nitration of compounds. According to the method of the present invention, which employs a suitable pretreatment process together with a vacuum evaporation process, acidic or alkaline aqueous wastewater, which are difficult to treat with existing processes, can be easily treated without having to employ the treatment of microorganisms.