臭氧联用技术深度处理腈纶废水的效果对比  

Comparison between Ozonation-combined Processes on Advanced Treatment of Acrylic Fiber Wastewater

作　　者：李长波[1] 赵国峥[1] 易先亮[1] 

机构地区：[1]辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001

出　　处：《化工环保》2014年第2期124-127,共4页Environmental Protection of Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项项目(2012 ZX07202-002);中国石油天然气股份有限公司科学研究与技术开发项目(FSSH11B507);辽宁省自然基金项目(201102117)

摘　　要：将臭氧分别与超声波、H2O2、紫外光等联用,深度处理干法腈纶生产厂生化池出水,对各种联用技术的处理效果进行了研究。实验结果表明:在进水流量2 L/min、反应时间30 min、臭氧加入量3.5 g/(L·h)的条件下,当超声功率为300 W时,臭氧-超声联用技术的COD去除率为30.0%;当H2O2加入量为0.4 mL/L时,臭氧-H2O2联用技术的COD去除率为50.7%;当紫外灯功率为40 W时,臭氧-紫外光联用技术的COD去除率为49.9%;在各种联用技术中,臭氧-H2O2联用技术的运行成本最低(为7.5元/t),且处理后出水COD为143 mg/L,达到《<污水综合排放标准>(GB8978—1996)中石化工业COD标准值修改单》中的一级排放标准。综合考虑,臭氧-H2O2联用技术是深度处理干法腈纶废水的最优工艺。The ozonation processes combined with ultrasonic,H2O2 and UV respectively were used in the advanced treatment of bio-treated effluent in an acrylic fiber plant with dry process.The treatment effects were studied.Under the conditions of influent flow 2 L/min,reaction time 30 min and O3 dosage 3.5 g/（L · h）,the COD removal rate of the O3-ultrasonic process is 30.0％ when the ultrasonic power is 300 W,the COD removal rate of the O3-H2O2 process is 50.7％ when the H2O2 dosage is 0.4 mL/L,the COD removal rate of the O3-ultraviolet process is 49.9％ when the UV lamp power is 40 W.The running cost of the O3-H2O2 process is the lowest （7.5 yuan/t）,and the effluent COD is 143 mg/L,which can meet the first grade discharge standard of GB 8978-1996.Considering comprehensively,the O3-H2O2 process is the optimum process for advanced treatment of the wastewater in acrylic fiber production with dry process.

关 键 词：臭氧氧化 干法腈纶生产工艺 联用技术 废水深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]