摘要
研究了二氧化氯催化氧化法在处理难降解有机化工废水中催化剂的选择和实验条件的优化.在催化剂选择实验中以-γAl2O3为载体共制备了29种催化剂,优选出Cu+Co+La+Ce-O+γ-Al2O3为本实验最佳的催化剂.通过实验确定本实验的最佳实验条件为:氧化剂24 mL/100 mL废水、反应时间70 min、pH<7、催化剂投加量为3 g/100 mL废水.
Optimization of catalysts and experimental conditions for chlorine dioxide catalytic oxidation of refractory wastewater under normal pressure and temperature were studied. 29 catalysts with different metal irons were prepared and tested, which were loaded on catalyst carrier of γ-Al2O3. The results show that Cu＋Co＋La＋Ce-O＋γ-Al2O3 is the best catalyst, and 24 mL ClO/100 mL wastewater, pH〈7,3 g catalyst/100 mL wastewater and reacting 70 min are the most efficient and economical experimental conditions.
出处
《兰州交通大学学报》
CAS
2005年第6期66-68,共3页
Journal of Lanzhou Jiaotong University
关键词
氧化氯
催化氧化
催化剂
难降解废水
chlorine dioxide
catalytic oxidation
catalyst
refractory wastewater
