Zhang Wei,Liu Yuhui,Zou Lirong,et al.Study on treatment of cyanide-containing electroplating wastewater by ozone microbubble method[J].Plating & Finishing,2024,(10):67-72.
臭氧微泡法处理电镀含氰废水工艺研究
- Title:
- Study on treatment of cyanide-containing electroplating wastewater by ozone microbubble method
- 分类号:
- X703
- 文献标志码:
- A
- 摘要:
- 采用臭氧微泡法连续处理电镀含氰废水，考察了废水体积流量、臭氧质量流量、UV灯功率密度和反应管道长度等参数影响，用分光光度计对氰离子（CN?）含量进行测定，得出了最佳的工艺条件：当废水体积流量为120 mL·min?1、臭氧的进料质量流量为11 g·min?1、UV紫外线灯的功率密度为35 W·cm?1、反应管道长度20 m时，废水中氰离子含量降为0.098 mg·L?1，臭氧利用率为98.2%，达到国家规定排放标准。
- Abstract:
- In this paper, ozone microbubble method was used to treat cyanide-containing electroplating wastewater continuously. The parameters of wastewater volume flow rate, ozone mass flow rate, UV lamp power density and reaction pipeline length were investigated. The content of cyanide-ion (CN?) was determined by spectrophotometer, and the best process conditions were obtained. When the volume flow rate of wastewater is 120 mL·min?1, the incoming mass flow rate of ozone is 11 g·min?1, the power density of UV lamp is 35 W·cm?1, and the length of reaction pipe is 20 m, the content of cyanide ion in wastewater is reduced to about 0.098 mg·L?1, ozone utilization rate is about 98.2%, which meets the national discharge standard
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