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 Degradation Mechanism and Kinetics of Organic Pollutants by Electrolysis
A study on degradation mechanism and kinetics of organic pollutants by electrolysis with Dimensionally Stabilized Anode(DSA)has been carried out.The results show that HO· with very strong oxidizing power can be produced in electrolysis and make organic pollutants degraded in indirect way.Degradation process meets basically reaction model of two steps and first grade according to the analysis of experimental data with on line least square method.The degradation rate constant of hydroxybenzoic acid and mole adsorptivity of 2,4 dihydroxybenzoic acid at 5.10 nm are obtained.
PASSIVE AND LOW-ENERGY RESEARCH AND PRACTICES-DEHUMIDIFICATION
Methods of achieving acceptable indoor conditions in overheated, temperate, and underheated humid climates are discussed and compared. Desiccants and desiccant systems utilizing solid and liquid sorbents and various low-energy mechanical systems are described and evaluated.