混凝-生物接触氧化-臭氧氧化工艺对印染废水处理特性评价  

Assessment on coagulation-biological-contact-oxidation-ozonation oxidation used for textile wastewater treatment

作　　者：梅林春 吴乾元[2] 黄满红[1] 姚颖 丘培文 王文龙[2] 李昂[2] 

机构地区：[1]东华大学环境科学与工程学院,国家环境保护纺织污染防治工程技术中心,上海201620 [2]清华大学深圳研究生院,国家环境保护环境微生物利用与安全控制重点实验室,深圳518055 [3]佛山市佳利达环保科技股份有限公司,佛山528143

出　　处：《环境工程学报》2016年第6期3043-3050,共8页Chinese Journal of Environmental Engineering

基　　金：深圳市科技计划项目(JSGG20140703145428318)

摘　　要：评价了大塘污水处理厂混凝-生物接触氧化-臭氧氧化工艺对印染废水的处理特性,分析处理过程中COD、色度的去除规律。结果表明:混凝-生物接触氧化-臭氧氧化工艺出水COD浓度最优水平值(TPSs-3.84%)为18.7 mg/L,中间水平浓度(TPSs-50%)为45 mg/L,COD浓度保证值(TPSs-95%)为62.7 mg/L,优于排放标准;工艺出水色度最优水平值(TPSs-3.84%)为10倍,中间水平浓度(TPSs-50%)为40倍,出水保证值(TPSs-95%)为45倍。其中,臭氧氧化在印染废水出水COD和色度的深度处理中发挥重要作用,将出水COD达标保障率由原来的91%提高到100%、出水色度的达标保障率由0%提高到90%。The coagulation-biological-contact-oxidation-ozonation combined technology was applied for textile wastewater treatment at the Datang industrial wastewater treatment plant. The COD and color removal efficiencies for the combined technology and for each individual process were evaluated. The results suggested that this combined technology was useful for textile wastewater treatment. The best COD level（ TPs-3. 84%） and median concentration for the effluent were 18. 7 and 45 mg / L,respectively,while the 95% reliably achievable COD concentration was 62. 7 mg / L,which is well below the emission standard of China. The best and median color levels for the effluent were 10 and 40 times,respectively,while the 95% reliably achievable color level was45 times. Individual contribution analysis for each process indicated that ozonation played an important role in COD and color elimination,with the ratios meeting the effluent standards increasing from 91% to 100% and 0%to 90% for COD and color,respectively.

关 键 词：印染废水 COD 色度 混凝 生物接触氧化 臭氧氧化 

分 类 号：X703[环境科学与工程—环境工程]