UDC 628.237.2:628.521
DOI 10.35776/VST.2023.10.03

Tcherkesov A. Yu., Israilov R.

Removing malodorous substances from gas-air mixtures in wastewater disposal systems

Summary

A scientific justification is given for the use of the method of hydrogen sulfide absorption by aqueous media containing an oxidizer – hypochlorite ion, obtained electrochemically in a stream of reusable absorption solution, in a countercurrent absorber for gas-air mixture purification in wastewater disposal systems. The results of theoretical and experimental studies of the influence of operational factors on the efficiency of removing hydrogen sulfide from gas-air mixtures using the proposed method are presented. Recommendations for using the method are given. A process flow scheme for gas-air mixture purification in wastewater disposal systems using the method of hydrogen sulfide absorption by aqueous media containing an oxidizer – hypochlorite-ion, as well as the process parameters for its application, are presented. The results of estimating the economic efficiency of the developed technology are provided.

Key words

sodium hypochlorite , hydrogen sulfide , absorption , gas cleaning , absorbent , absorber