Adsorpcja barwników z roztworów wodnych na popiołach

• Autorzy: Filipkowska U. , Janczukowicz W. , Rodziewicz J. , Szmit R.

Warianty tytułu

EN

Adsorption of dyes from aqueous solutions on ashes

• Języki publikacji: PL

Abstrakty

PL

Celem niniejszej pracy było określenie efektywności adsorpcji barwników anionowych i kationowych z roztworów wodnych na popiołach pochodzących, z dwóch różnych źródeł: ze spalania osadów ściekowych w Grupowej Oczyszczalni Ścieków "Dębogórze" w Gdyni i ze spalania węgla kamiennego w Olsztyńskiej Elektrowni Ciepłowniczej (OZOS). Jako adsorbaty zastosowane zostały barwniki rozpuszczalne w wodzie: z wytworzeniem barwnego kationu - Basic Green 4 (barwnik zasadowy) oraz z wytworzeniem barwnego anionu - Reactive Black 5 (barwnik helaktynowy winylosulfonylowy.

EN

This study was conducted with water-soluble dyes used as sorbates: with the formation of color cation - Basic Green 4 (basic dye) and with the formation of color anion - Reactive Black 5 (helactine vinyl sulfone dye). Its objective was to investigate possibilities of dyes adsorption from aqueous solutions on ashes. The scope of the study included a comparison of adsorption effective-ness of two dyes originating from the textile industry: Reactive Black 5 (RB5) and Basic Green 4 (BG4) by fly ashes of two different origins: from coal combustion at the Olsztyn Thermal Power Station (OZOS), from combustion of sewage sludge originating from Group Wastewater Treatment Plant "Dębogórze" in Gdynia. Results achieved in the study demonstrated that the effectiveness of the adsorption process was determined by the type of dye and adsorbent as well as by pH value of the aqueous solution. In the case of the anionic dye RB 5, the increase in pH was accompanied by diminishing adsorption effectiveness, whereas an opposite tendency was observed in the case of the cationic dye BG4 when the increase in pH value resulted in enhanced dye removal. The fly ashes applied in the research, both from the Thermal Power Station OZOS and from combustion of activated sludge, were characterized by a high effectiveness of cationic dye removal. In the case of the cationic dye BG 4, the highest adsorption capacity (b) accounting for 500.5 mg/g was achieved on fly ashes from the Thermal Power Station at pH = 9.0. In turn, the effectiveness of anionic dye RB 5 removal on both sorbents was at a similar, considerably lower level (0.6÷4%). In the case of this dye, the highest adsorption capacity (b) reaching 6 mg/g d.m. was achieved on ashes from the sludge at pH 3.0, whereas the lowest one ? 0.1 mg/g d.m. - at pH 9.0 on fly ashes from the Thermal Power Station.

Słowa kluczowe

PL

barwnik; popiół; roztwór wodny

EN

aqueous solution; ash; dye

• Wydawca: Politechnika Koszalińska
• Czasopismo: Rocznik Ochrona Środowiska
• Rocznik: 2011
• Tom: Tom 13
• Strony: 1173--1184
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Filipkowska U.

autor

Janczukowicz W.

autor

Rodziewicz J.

autor

Szmit R.

• Uniwersytet Warmińsko-Mazurski, Olsztyn

Bibliografia

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• 2. Chowdhury S., Saha P.: Sea shel powder as a New adsorbent to remove Basic Greek 4 (Malachite Green) from aqueous solution: Equilibrium, kinetic and thermodynamic studies. Chemical Engineering Journal, 164: 168÷177, 2010.
• 3. Crini G., Peindy H.N., Gimbert F., Robenrt C.: Removal of C.I. Basic Green 4 (Malachite Green) from aqueous solutions by adsorption using cyclodextrin-based adsorbent: Kinetic and equilibrium studies. Separation and Purification Technology, 53: 97÷110, 2007.
• 4. Czajkowski W.: Barwniki dla włókiennictwa: wczoraj, dziś i jutro. Prace Instytutu Włókiennictwa. 55: 7 ÷14, 2005.
• 5. Demir H., Top A., D. Balkose, S.U.: Dye adsorption behavior of Luffa cylindrica fibers. Journal of Hazardous Materials, 153: 389÷394, 2008.
• 6. Mesko Vera, Markovska L., Mineeva M., Burevski D.: Equilibrium Isotherms For Adsorption Of Basic Dyes From Aqueous Solutions On Different Adsorbents. Bulletin the Chemists and Technologists of Macedonia, 20(2):. 143÷150, 2001.
• 7. Mittal A.: Adsorption kinetics of removal of a toxic dye, Malachite Green, from wastewater by using hen festhers. Journal of Hazardous Materials, B133: 196÷202, 2006.
• 8. Renmin G., Li M., Yang Ch., Sun Y., Chen J.: Removal of cationic dyes from aqueous solution by adsorption on peanut hull. Journal of Hazardous Materials, B121: 247÷250, 2005.
• 9. Sun D., Zhang X., Wu Y., Liu X.: Adsorption of anionic dyes from aqueous solution on fly ash. Journal of Hazardous Materials, 181: 335÷342, 2010