Study on Treating Stench Wastewater Containing Dodecyl Mercaptan by Electrolyzing Sodium Sulfate Solution
This paper suggests a technological process to oxidize stench sulfide wastewater containing dodecyl mercaptan with electrolyzing Na2SO4 in the presence of active carbon. Preliminary experiments were conducted and good results were obtained. Under the condition that electrolyzing 1%(m/V)Na2SO4 with 1A current and the reaction temperature remains 30 and the reaction time lasts 10 ~ 30 s, the stench dodecyl mercaptan was eliminated.
Study on Treating Stench Wastewater Containing Dodecyl Mercaptan with Catalyzed Oxidation of NaClO
The technological process to oxidize stench sulfide wastewater containing dodecyl mercaptan with NaClO in the presence of activated carbon was introduced in this paper. The bench scale experiment was conducted and good results were obtained. Under the condition that the reaction temperature remains at 100℃ and the reaction time lasts 2-3min, 1mL 1%(m/v) NaClO could deal with 100mL wastewater. After treatment, the stench dodecyl mercaptan was eliminated and the wastewater was odorless and colorless.
Polarographic kinetic currents in mixtures of hydrogen peroxide and copper(II) in chloride medium
A kinetic current at the dropping mercury electrode is observed in mixtures of hydrogen peroxide and copper(II) in chloride medium in the presence of acid at potentials corresponding to the first copper wave. The kinetic current is due to reaction of copper(I) formed at the electrode with hydrogen peroxide and gives a value of 491 mol−1 sec−1 for the rate constant at 25°. The rate constant for this reaction, determined directly is 581 mol−1 sec−1. An adsorbed layer of copper(I) complex at the electrode prevents the electroreduction of hydrogen peroxide.