Experimental study of the effectiveness of sorbents based on building binder mixtures and porous granular materials for cleaning supply air in buildings

Abstract

Experimental study of the effectiveness of sorbents based on building binder mixtures and porous granular materials for cleaning supply air in buildings

Litvinova N.A., Azarov V.N., Shapoval A.F., Chekardovsky M.N.

Incoming article date: 10.11.2023

The effectiveness of air purification with the following sorbents has been studied: crushed expanded clay with granule sizes up to 2-3 mm, zeolite with granule sizes up to 1-3 mm, activated carbon with granules up to 3 mm, the natural mineral pyrolusite as a catalyst, Portland cement prepared using various methods: with the addition of a 6% solution of table salt, with soaking of granules in 26%, 31% and 36% solutions of diethanolamine. Studies have shown that the most effective (98%) use of pyrolusite granules, Portland cement granules obtained after mixing Portland cement with a 6% sodium chloride solution, soaked in 31% diethanolamine and then drying the granules at a temperature of 125 0C.

Keywords: crushed expanded clay, portland cement, purification, supply air, sulfur dioxide, carbon monoxide, formaldehyde, granules