Treatment of odorous sulphur compounds by chemical scrubbing with hydrogen peroxide--stabilisation of the scrubbing solution.
To slow down the hydrogen peroxide decomposition in basic aqueous conditions, the addition of stabilizers and co-stabilizers in the scrubbing solution was investigated. Results found with sodium silicate (Na2SiO3) were quite promising but several problems still remained. Based on these observations, this study focused on the research of a better stabilizer. Several ways were investigated: the use of silicate solutions employed in pulp industries, the addition of co-stabilizers to sodium silicate, or the use of an another stabilizer (the poly-alpha-hydroxyacrylic acid). Experiments revealed that the poly-alpha-hydroxyacrylic acid is the best stabilizing compound.
Charron
Isabelle
I
Anjou Recherche-Veolia Environnement Chemin de la digue BP 76 - 78 603 Maisons Laffitte, France.
Couvert
Annabelle
A
Laplanche
Alain
A
Renner
Christophe
C
Patria
Lucie
L
Requieme
Benoît
B
D006861:Hydrogen Peroxide / Q000032:analysis*; D009812:Odorants; D004369:Pentetic Acid / Q000737:chemistry; D012996:Solutions; D013457:Sulfur Compounds / Q000032:analysis*
D012996:Solutions; D013457:Sulfur Compounds; D004369:Pentetic Acid; D006861:Hydrogen Peroxide