Treatment Dyeing Organic Wastewater by Titanium Dioxide Prepared with Ion Liquids for Environmental Protection

Jie Yang; Yi Lu Liu; Qi Hua Wu

doi:10.4028/www.scientific.net/AMR.600.88

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 600Treatment Dyeing Organic Wastewater by Titanium...

Treatment Dyeing Organic Wastewater by Titanium Dioxide Prepared with Ion Liquids for Environmental Protection

Abstract:

The dyeing wastewater is processed by photoelectric catalytic oxidation with nickel foam electrode of titanium dioxide， which is prepared with ion liquid. The main influence factors including electrode distance, electrolysis voltage, pH and electrolytic time were studied in processing waste. Results show the optimal operating condition is the electrode gap of 1.0 cm, pH value of 4.4, electrolysis voltage of 5.0V and 100 mg∙L-1 dosages of Na2SO4 in 120 minutes electrolysis time under the irradiation of ultraviolet light . The effect of processing the wastewater with catalytic electrolysis can be greatly improved in water cycle system with continuous air, flocculent and activated carbon. Consequently the removal rate of the Chemical Oxygen Demand (COD)is 78.69%, and the decolored rate is 97.02%. The COD of the processed wastewater is within 100.0 mg∙L-1, and meets the first national emission standards. It is expected that the method will have good prospect in protecting the water resources and environment.

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Periodical:

Advanced Materials Research (Volume 600)

Pages:

88-91

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.600.88

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Online since:

November 2012

Authors:

Jie Yang, Yi Lu Liu, Qi Hua Wu

Keywords:

Electrolyze, Ion Liquid, Nickel Foam, Titanium Dioxide (TiO₂)

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