中文摘要：

对某印染厂的生化出水采用过硫酸盐高级氧化法进行深度处理，研究了FeSOt、Co（NOs）2、石墨、氧化石墨烯负载Co3O4、活性炭的催化作用，考察了过硫酸钾（KPS）用量、催化剂用量、pH、反应温度及反应时间对生化出水氧化处理效果的影响。结果表明：（1）加热能够显著改善KPS单独氧化体系对生化出水的氧化处理效果；对于KPS／Co（N03）2组合氧化体系和KPS／人造石墨组合氧化体系，随着反应温度的升高，COD去除率升幅不是很大。（2）总体上，各氧化体系对生化出水的COD去除率均随着反应时间的延长而逐渐升高，但30rain后升幅不明显。（3）Co（N03）2和人造石墨是KPS分解产生·SO4-的有效催化剂。室温下，在KPS、催化剂最佳用量下，反应30min后，KPS／Co（NO3）2组合氧化体系及KPS／人造石墨组合氧化体系均对生化出水有良好的脱色效果和有机物氧化作用，COD去除率分别达52．30％和62．02％，与KPS单独氧化体系（COD去除率14．75％）相比有显著提高。

英文摘要：

The advanced oxidation of secondary effluent of dyeing wastewater was performed using potassium persulfate （KPS） as oxidizing agent and combined with different catalyst （FeSO4, Co （NO3）2, graphite, oxidized gra- phene （GO） coating with cobalt oxide,active carbon）. The performance of different catalyst as well as the effects of KPS dosage, catalyst concentration, p H,reaction temperature and reaction time on COD removal was investigated. The experimental conclusions are as follows ： （1） heating could significantly improve the treatment efficiency of single KPS oxidation system; For KPS/Co（NO3 ）2 combination system and KPS/AG combination system,increasing temperature only made a slight improvement on COD removal. （2） Generally,the COD removal rate of each oxidation system had a gradual increase with reaction time,but the increasing tendency was not obvious after 30 min. （3） Co（NO3）2 and AG were effective catalyst for decomposing KPS into SO4. Both KPS/Co（NO3 ）2 combination system and KPS/AG combination system had excellent effect of decolorization and organics oxidation. Under optimum dosage of KPS and catalyst, the COD removal rate of KPS/Co（NO3）2 combination system and KPS/AG combination system reached 52.30 % and 62.02% after 30 min of treatment at ambient temperatures, showing a significant increase compared with single KPS oxidation system （14.75%）.