摘要
采用正交实验对催化剂NiO/γ-Al2O3的制备条件进行优化,并探讨臭氧催化氧化法对于印染废水的深度处理效能。结果表明,最优的催化剂制备条件为:浸渍液浓度为3%、浸渍时间为4 h、灼烧温度为450℃、灼烧时间为3 h。臭氧催化氧化反应15 min时,COD浓度由84.22 mg/L降低至50.00 mg/L以下;氨氮浓度由10.88 mg/L降低至5.01 mg/L;色度去除率达到69%,明显高于单纯臭氧氧化的反应效率。
The preparation method of NiO/γ-Al2O3 as catalyst was optimized through orthogonal test and the advanced treatment efficiency of dyeing wastewater through catalytic ozonation process was also discussed.Results showed that the optimal catalyst preparation conditions are： impregnating solution concentration of 3%,immersion time of 4 h,burning temperature of 450℃ and burning time of 3 h.When kept ozone oxidation of 15 min,COD concentration decreased from 84.22 mg/L to 50.00 mg/L,the NH3-N concentration decreased from 10.88 mg/L to 5.01 mg/L,and the chromaticity removal rate reached to 69%,which showed higher reaction efficiency than that of single ozone oxidation process.
出处
《环境工程学报》
CAS
CSCD
北大核心
2013年第8期2873-2876,共4页
Chinese Journal of Environmental Engineering
基金
国家水体污染控制重大专项(2012ZX07201003)
教育部新世纪优秀人才项目(NCET-12-0156)
关键词
臭氧催化氧化
深度处理
印染废水
catalytic ozonation
advanced treatment
dyeing wastewater
