摘要
以生产除草剂过程中废水作为研究对象,采用活性炭吸附法、Fenton氧化法、电解氧化法、光催化氧化法相结合,将废水的化学需氧量(COD)从72186mg/L降至150mg/L。并重点研究了PbO2/Ti复合电极在电催化氧化中对废水处理的最佳条件。结果表明,废水为中性、电极间距离为5mm条件下,加入少量的H2O2可以显著地提高电解氧化效率,再经光催化氧化降解后可以达到国家废水排放标准。
Wastewater coming from the preparation of herbicide was studied, the chemical oxygen demand（COD） of the wastewater is degraded to 150 mg/L from 72186 mg/L by combining the active carbon absorption and Fenton oxidation and electrolysis oxidation and photocatalytic oxidation methods. The optimal operating conditions of wastewater treatment of PbO2/Ti composite electrode were mainly studied in electro-catalytic oxidation. The results showed that the wastewater for electro-catalytic oxidation is neutral, adding a little of H2 O2 can improve the electrolytic oxidation efficiency in the condition that the distance between the electrodes is 5 mm. And then the wastewater is up to national emission standards by photocatalytic oxidation degradation.
出处
《金属功能材料》
CAS
2013年第5期13-17,共5页
Metallic Functional Materials
基金
中央高校基本科研业务费专项资金资助(2013HGXX0008)
安徽省教育厅重点产学研项目资助(2010A037)
关键词
除草剂废水
PbO2
Ti复合电极
电催化氧化
化学需氧量
Herbicide wastewater
PbO2/Ti composite electrode
electro-catalytic oxidation
chemical oxygen demand
