摘要
采用系列贵金属-半导体氧化物催化剂,在高压釜中250℃液相条件下对焦化厂等工业废水以及由氨、吡啶等组成的模拟废水进行液相氧化试验。结果发现几种催化剂对不同污染物有不同序列的催化氧化活性,其净化作用有各自的选择性。WT-501催化剂对氨和有机污染物均有高活性,焦化废水经WT-501催化氧化处理后’COD、NH_3分別从9302mg/L和5230mg/L降至619mg/L和47mg/L,去除率高达93.2％和99％。
The aim of this work is to explore application of the catalytic wet oxidation process to wastewater treatment in the coke-oven plants and the coal-gas producers. A series of catalysts, noble metals/semiconductor oxides, were prepared and tested in a high pressure vessel under 250℃ liquid phase conditions. It was found that different catalysts demonstrated their own selectivity to different pollutants. The catalyst WT-501 showed high activity toward both ammonia anf organic components. Wastewater from the coke-oven plants originally contained COD 9302 mg/L and NH3 5230 mg/L, but they were removed into 619 mg/L and 47 mg/L respectively by using the catalyst WT-501 with COD removing rate of 93.2% and NH3 of 99%.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1990年第5期34-37,共4页
Environmental Science
关键词
废水处理
焦化废水
催化湿式氧化
wastewater treatment, catalytic wet oxidation process, noble metals/semiconductor oxides.
