Treatment of industrial phenol-containing wastewater with solid extractants depending on the acidity of the medium

Abstract

The problem of pollution of open water by industrial effluents remains relevant over the past two centuries.
Wastewater from the oil refining, chemical-pharmaceutical and coke industries is particularly hazardous. These industries emit
into open water up to 4-10 tons of phenol per day. Earlier, we conducted studies aimed at studying the distribution of phenol in
three-component stratified systems consisting of phenol, water and acetic acid esters. Studies have been carried out to establish
optimal conditions for the extraction of phenol from wastewater by solid extractants - tributyl phosphate (TBPh), multiradical
phosphinoxide (MPh), diisooktylmethylphosphonate (DIOMPh). In the present work the regularities of phenol extraction from
industrial wastewater by solid extractants depending on the acidity of the medium were investigated. The article presents the
results of experimental studies of phenol extraction by organic solvents under thermostatic conditions. We found that the most
effective extraction of phenol occurs when the acidity of the medium pH = 1-7.