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Katalityczne ozonowanie modelowych roztworów reaktywnego barwnika błękit-1
Języki publikacji
Abstrakty
Catalytic ozonation of aqueous solutions of reactive dye simulating textile waste effluents was studied. The efficiency of ozonation was enhanced by nickel oxide catalyst. It was also established that the effect of the catalyst on the removal of the dye Blue-1 depends on pH of the medium and is noticeable at pH 7, whereas at higher pH values it is negligible. The effectiveness of cata-lytic ozonation and ozonation was estimated based on the degree of conversion. The effect of temperature and the amount of the catalyst on the Blue-1 removal was investigated. At a room temperature and a minimum amount of the catalyst the degree of Blue-1 conversion due to catalytic ozonation was 81% compared to 53% due to ozonation alone under the same conditions. The COD reduction at pH 7 due to catalytic ozonation and the ozonation itself was 50% and 22%, respectively, which evidences an improvement in the dye removal.
Badano katalityczne ozonowanie wodnych roztworów reaktywnego barwni-ka symulujących ścieki z zakładów przemysłu włókienniczego. Efektywność ozonowania poprawia tlenek niklu użyty jako katalizator. Ustalono, że wpływ katalizatora na usuwanie barwnika zależy od pH środowiska i jest duży, gdy pH=7, a niewielki dla wyższych jego wartości. Efektywność katalitycznego ozonowania i samego ozonowania określono na podstawie stopnia konwersji. Badano wpływ temperatury i ilości katalizatora na usuwanie barwnika. W tem-peraturze pokojowej i przy minimalnej ilości katalizatora stopień konwersji barwnika w wyniku katalitycznego ozonowania osiąga 81% w porównaniu z 53% w przypadku samego ozonowania. Redukcja ChZT przy pH=7 wskutek katalitycznego ozonowania wynosiła 50%, a wskutek jedynie ozonowania - 22%, co świadczy o lepszym usuwaniu barwnika
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
5--16
Opis fizyczny
Bibliogr. 17 poz., rys.
Twórcy
autor
- Department of Chemistry, Technical University of Plovdiv, 8 Dustabanov St., 4000 Plovdiv, Bulgaria.
autor
- Department of Chemistry, Technical University of Plovdiv, 8 Dustabanov St., 4000 Plovdiv, Bulgaria.
Bibliografia
- [1] ABDO M., SHABAN H., BADER M., Decolorization by ozone of direct dye in presence of some catalyst, J. Environ. Sci. Health., 1998, А23, 698.
- [2] АЕРРLI J., DYER-SМITH P., PLUMRIDGE J., Theory and practice of ozone applications in the 90s in UK, [in:] Proceedings CIWEM Workshop on Ozone in the UK, Naicote Hall, 1997, Warwickshire, England.
- [3] BESZEDITS S., Ozonation to decolour textile effluents, Am. Dye. Rep., 1980, 69, 38-46.
- [4] GARCIA R., ARAGUES J., OVELLEVIERO J., Study of the catalytic ozonation of humic substances inwater and their ozonation by-products, Ozone Sci. Engng., 1996, 18, 195.
- [5] BESZEDITS S., Ozonation to decolour textile effluents, Am. Dye. Rep., 1980, 69, 38-46.
- [6] GREEN J.M., SIKOL C., Using ozone to decolorize dyeing plant waste water, Am. Dye Rep., 1985, 74, 67-75.
- [7] CURISTOSKOVA S., DANOVA N., GEORGIEVA M., ARGIROV O., MEHANDCHIEV D., Investigation of a nickel oxide system for heterogeneous oxidation of organic compounds, Appl. Catal. A: General, 1995, 128, 219-229.
- [8] CURISTOSKOVA S., SТOYANOVA M., GEORGIEVA М., Low temperature catalytic oxidation of sulfide ions in aqueous solution on a Ni-oxide system, React. Kinetics and Catal. Lett., 2000, 70, 1, 139-145.
- [9] GIARDELLI G., RARIERI N., The treatment and reuse of waste water in the textile industry by means of ozonation and electroflocculation, Wat. Res., 2001, 35, 2, 567-572.
- [10] HERCH P., DENKINGER K., Galvanic monitoring of ozone in air, Anal. Chem., 1963, 35, 897-902.
- [11] HOIGNE J., BADER Н., Rate constants of reactions of ozone with organic and inorganic compounds in water. I. Non-dissociating organic compounds, Wat. Res., 1983, 17, 173-183.
- [12] LEGUBE B., LEINER N., Catalytic ozonation: a promising advanced oxidation technology for water treatment, Catalysis Today, 1999, 53, 61-72.
- [13] РАILLARD H., DIRE M., BOURBIGOT М., Prospects concerning application of catalytic ozonation in drinking water treatment, [in:] The 10-th Ozone World Congress. Proceedings, Monaco, 1990, 313-329.
- [14] PARISHEVA Z., DEMIREV A., Ozonation of ethanolamine in aqueous medium, Water. Res., 2000, 34, 4, 1340-1344.
- [15] PARISHEVA Z., DEMIREV A., Ozonation of aqueous solutions of resorcinol and catechol, Environment Protection Engineering, 2001, 27, 2, 18-25.
- [16] SHENG H. LIN, MINO L. CHEN, Treatment of textile wastewater by chemical methods for reuse, Wat. Res., 1997, 31, 4, 868-876.
- [17] WEI Cno, CHI-WAI MA, Quantitative prediction of direct and indirect dye ozonation kinetics, Wat. Res., 2000, 34, 2, 3153-3160.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPG5-0010-0020