PH effect on decolorization of raw textile wastewater polluted with reactive dyes by advanced oxidation with U/VH2O2

• Autorzy: Racyte J. , Rimeika M. , Bruning H.
• Języki publikacji: EN

Abstrakty

EN

The effectiveness of the advanced oxidation process (UV/H2O2) in decolorizing real textile wastewater polluted with commercial reactive dyes - Reactive Yellow 84 and Reactive Red 141 - was investigated. All the experiments were performed in a lab-scale reactor with the original high pH of the wastewater. The dyeing wastewater was decolorized in 5 hours. After its acidification to pH 3 the decolorization process was more efficient. Full decolorization was then achieved in 2 hours and the decrease in COD exceeded 70%. The reaction rate constants obtained were as follows: at pH 11.4, 0.0065 min(-1); at pH 7, 0.0044 min(-1), and at pH 3, 0.019 min(-1), which testified to pH importance for UV/H2O2 oxidation process.

Słowa kluczowe

EN

chemical oxygen demand; water treatment; color removal; dyeing wastewater; textile wastewater; oxidation

PL

zapotrzebowanie chemiczne na tlen; uzdatnianie wody; usuwanie koloru; barwienie ścieków; ścieki włókiennicze; utlenianie

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2009
• Tom: Vol. 35, nr 3
• Strony: 167--178
• Opis fizyczny: bibliogr. 24 poz.

Twórcy

autor

Racyte J.

autor

Rimeika M.

autor

Bruning H.

• Department of Water Management, Vilnius Gediminas Technical University, Lithuania,

Bibliografia

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