Pregled bibliografske jedinice broj: 246871
Treatment of Electroplating Wastewaters using Waste Ferrous Sulfate and Wood Fly Ash
Treatment of Electroplating Wastewaters using Waste Ferrous Sulfate and Wood Fly Ash // 5th European Meeting on Chemical Industry and Environment (EMChIE 2006) : proceedings / Hoflinger, W. (ur.).
Beč: Vienna University of Technology, 2006. str. 290-297 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Treatment of Electroplating Wastewaters using Waste Ferrous Sulfate and Wood Fly Ash
Autori
Oreščanin, Višnja ; Nađ, Karlo ; Mikulić, Nenad ; Mikelić, Luka ; Lulić, Stipe
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
5th European Meeting on Chemical Industry and Environment (EMChIE 2006) : proceedings
/ Hoflinger, W. - Beč : Vienna University of Technology, 2006, 290-297
Skup
European Meeting on Chemical Industry and Environment (5 ; 2006)
Mjesto i datum
Beč, Austrija, 03.05.2006. - 05.05.2006
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
chromate ; electroplating waste water ; ferrous-sulfate ; heavy metals ; leaching tests ; wood fly ash
Sažetak
The purpose of this work was the development and testing of a simple cost-effective treatment of waste waters originated from electroplating processes using waste Fe(II)-sulfate and wood fly ash. Ferrous-sulfate was employed for Cr(VI) reduction whereas neutralization and heavy metal removal from EWW was performed using wood fly ash. Optimum amount of ferrous sulfate and wood fly ash needed for successful treatment of EWW, optimum pH value of the treated solution and mixing time were determined. Various leaching tests were conducted on the remaining waste mud, which bound heavy metals from the waste water in order to determine a safe way to its permanent disposal. Heavy metals removal efficiency varied from 97.5% for Cu to 99.973% for Zn. Satisfying results can be achieved already at the pH 8. The method is suitable for the purposes of waste water treatment and disposal in compliance with environmental laws. Reported new procedure is technically simpler, cheaper and requires less space compared to the classical methodology because all reactions (chromate reduction, neutralization and heavy metals removal) could be conducted in only one container. Significant improvement in waste water treatment lies in the fact that both reagents (ferrous-sulfate and fly ash) are used in their original form (solid state) whereby any sort of preliminary processing isn’ t needed.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Informacijske i komunikacijske znanosti
