Podczyszczanie odcieków składowiskowych z wykorzystaniem chlorku żelaza(III) i nadtlenku wodoru

• Autorzy: Leszczyński J.

Identyfikatory

DOI

10.12912/2081139X.65

Warianty tytułu

EN

Pretreatment of landfill leachate using iron(III) chloride and hydrogen peroxide

• Języki publikacji: PL

Abstrakty

PL

W artykule badano zastosowanie chlorku żelaza(III) i nadtlenku wodoru do oczyszczania odcieków pochodzących z ustabilizowanego składowiska odpadów. Odcieki charakteryzowały się barwą 980 gPt/m³, wartością pH 8,03; ChZT 605 gO₂/m³; BZT5 65 gO₂/m³; NH4+ 92 gN/m³; przewodnością 6,47 mS/cm; absorbancją UV254 0,300 i mętnością 1,6 NTU. Wykazano, że stosując chlorek żelaza(III) i nadtlenek wodoru można skutecznie usuwać z odcieków barwę, ChZT i absorbancję UV₂. Proces prowadzono w różnych stosunkach wagowych H₂₅₄O₂/Fe w zakresie od 1,7 do 32. Najlepsze warunki prowadzenia procesu uzyskano przy stosunku Fe/ChZT równym 0,9 i H₂O₂/Fe równym 4,2. W tych warunkach skuteczność usuwania ChZT wynosiła 72%, barwy 93% i absorbancji UV₂₅₄ 82,2%.

EN

In this paper, the application of Iron(III) chloride and hydrogen peroxide oxidation processes for stabilized landfill leachate treatment was investigated. The leachate came from a municipal sanitary landfill and the average values of its main parameters were: pH 8,03; COD 605 gO₂/m³; BOD 65 gO₂/m³; NH4+ 92 gN/m³; conductivity 6,47 mS/cm; UV₂₅₄ absorbance 0,300 and turbidity 1,6 NTU. It is demonstrated that the application of Iron(III) chloride and hydrogen peroxide can effectively remove leachate pollutants such as color, COD and UV₂₅₄ absorbance. A combination process, accomplished at different weight ratios of reagents H₂O₂/Fe was 1,7 to 32. The best conditions for process were found at a ratio Fe/COD equal to 0,9 and H₂O₂/Fe equal to 4,2. Leachates were significantly oxidized under these conditions in terms of COD removal 72%, color removal 93% and UV₂₅₄ absorbance removal 82,2%.

Słowa kluczowe

PL

odcieki składowiskowe; koagulacja; utlenianie

EN

landfill leachate; coagulation; oxidation

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej
• Czasopismo: Inżynieria Ekologiczna
• Rocznik: 2014
• Tom: Nr 40
• Strony: 17--24
• Opis fizyczny: Bibliogr. 25 poz., tab., rys.

Twórcy

autor

Leszczyński J.

• Katedra Technologii w Inżynierii i Ochronie Środowiska, Politechnika Białostocka, ul. Wiejska 45A, 15-351 Białystok

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