CAJ | 학술논문

为了提高难降解有机废水的可生化性,以及更高效地去除废水中的特征污染物,同时避免二次污染,利用自制的含锡锑中间层的钌钯氧化物涂层电极对有机废水中的硝基苯进行处理,并利用 SEM、XRD等方法对电极中间层、表层进行微观表征.微观测试表明,基体、中间层、表层之间结合力较强,有利于增强电极寿命;水处理实验表明,电催化氧化反应体系适合高浓度有机废水的处理,由于该反应体系需要外加电解质加强传质,这在实际运用中为废水中盐度的处理提供了一种新的途径,当电流密度为20 mA/cm~2、电解质浓度为10 g/L、pH=5、极板间距=2 cm时,电催化氧化体系对硝基苯具有较高的去除效率.
위료제고난강해유궤폐수적가생화성,이급경고효지거제폐수중적특정오염물,동시피면이차오염,이용자제적함석제중간층적조파양화물도층전겁대유궤폐수중적초기분진행처리,병이용 SEM、XRD등방법대전겁중간층、표층진행미관표정.미관측시표명,기체、중간층、표층지간결합력교강,유리우증강전겁수명;수처리실험표명,전최화양화반응체계괄합고농도유궤폐수적처리,유우해반응체계수요외가전해질가강전질,저재실제운용중위폐수중염도적처리제공료일충신적도경,당전류밀도위20 mA/cm~2、전해질농도위10 g/L、pH=5、겁판간거=2 cm시,전최화양화체계대초기분구유교고적거제효솔.
In order to improve the biodegradability of persistent organic wastewater and remove the key pollutants more efficiently in the wastewater. A new type of DSA electrode is used to decompose nitrobenzene wastewater which the electrode is composed of Sn/Sb oxide as mid-layer and Ru/Pd oxide as external-layer. The test of SEM and XRD shows that this electrode has better catalytic-activity,longer life and stronger bonding between bottom-layer,mid-layer and external-layer;the result of wastewater treatment shows that the reaction system is suitable for high concentrations of organic wastewater. Also, the system can provide a new salinity reuse method in the actual wastewater because the system needs electrolyte to enhance the mas transfer. Then, the system can reach a higher removal efficiency under the conditions of J(current density) =20 mA/cm~2,C' (Na_2SO_4 electrolyte concentration) =10 g/L,pH =5 ,L( distance between anode and cathode) =2 cm.