A New Sorbent for Air Cleaning from Water Vapors, Acidic Gases and Microorganisms

Abstract

There were investigated physico-chemical and absorption properties of new sorbent, that was obtained by means of mixing of fine-grained Portland cement -500, 100 g of gaize from Astrakhan Oblast with 100 cm3 of 10% aquatic solution of table salt and forming of pellets with desired size (from 0.5 to 5 cm diameter). Formed mass after setting and hardening was placed into current water, and cured so far as water had negative reaction on chloride-ion. After drying at 80-85oC pellets were placed into 40% aquatic solution of diethanol amine (DEA) during 1 hour, then pellets carried over on sieve, therewith removing excess of DEA, and pellets were predrying in free air (fan) at 20-40oC. Sorbent SV-DA was used for ambient air cleaning from acidic gases and water vapors, such as hydrogen sulfide, sulfur dioxide, carbon dioxide and microorganisms. Obtained results are testified high absorption properties of sorbent, allowing cleaning ambient air from acidic gases to level less than 0.01 MAC.