H2S Chemistry

Removing Hydrogen Sulfide

Chemistry
H2S + 2NaOH + 4NaOCL = Na2SO4 + 4NaCL + 2H2O
Sodium Sulfate Na2SO4 Stable Salt Regardless of pH
Solubility at 70F is 20 lbs. Na2SO4 / 100 lbs. water

Example
1000 CFM with 100 PPM H2S — 98% removal
0.65 GPH 20% NaOH — Caustic
3.20 GPH 15% NaOCL — Bleach

Purge/Overflow Rate: 6 GPH of water

Packing Bed Scrubber Design
Cross Sectional Velocity: 500 FPM
Recirculation Rate: 15 GPM 1000 CFM