Development of polyfunctional sorbents based on zeolites for wastewater treatment

Abstract

The article presents technological approaches to solving the problem of involving production waste in the technology of sorption treatment of wastewater by component composition. Zeolites of the Holinsky deposit of Eastern Transbaikalia of the klinoptilolite type were taken as the initial matrix for creating a sorbent. We propose to use chloroanic wastes as an adsorbent of heavy metal ions, as which we propose to consider epichlorohydrin. The analysis of existing technologies for the disposal of organochlorine wastes, as well as known sorption materials, using sulfur as one of the modifier components. As a result of the deposition of a sulfur-containing polymer network on the surface of natural zeolite, not only its hydrophobization occurs. Sulfur atoms appear in its composition, which contributes to an increase in the selective ability to heavy metal ions, while copper ions are sorbed most rapidly. Previously, we proposed a method for modifying natural zeolites with highly organosilicon compounds, which made it possible to effectively neutralize oily wastewater.