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A combined treatment of landfill leachate using calcium oxide, ferric chloride and clinoptilolite (CROSBI ID 172155)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Oreščanin, Višnja ; Ruk, Damir ; Kollar, Robert ; Lovrenčić Mikelić, Ivanka ; Nađ, Karlo ; Mikulić, Nenad A combined treatment of landfill leachate using calcium oxide, ferric chloride and clinoptilolite // Journal of environmental science and health. Part A : Toxic/hazardous substances & environmental engineering, 46 (2011), 3; 323-328. doi: 10.1080/10934529.2011.539118

Podaci o odgovornosti

Oreščanin, Višnja ; Ruk, Damir ; Kollar, Robert ; Lovrenčić Mikelić, Ivanka ; Nađ, Karlo ; Mikulić, Nenad

engleski

A combined treatment of landfill leachate using calcium oxide, ferric chloride and clinoptilolite

The aim of this research was development of appropriate procedure for treatment of landfill leachate taken from old sanitary landfill Piskornica (Koprivnica, Croatia). Due to complex nature of the effluent a combined treatment approach was applied. Samples were treated with calcium oxide followed by ferric chloride and finally with clinoptilolite. The optimum amount of treating agents and contact time were determined.Application of calcium oxide (25 g/L, 20 min. contact time) resulted in the reduction of color, turbidity, suspended solids and ammonia for 94.50%, 96.55%, 95.66% and 21.60%, respectively, while the removal efficiency of Cr (VI), Fe, Ni, Cu, Zn and Pb was 75.00%, 95.34%, 56.52%, 78.72%, 73.02% and 100.00%, respectively. After addition of ferric chloride (570 mg Fe3+/L, 20 min. contact time) removal efficiency of color, turbidity, suspended solids and ammonia increased to 96.04%, 99.27%, 98.61%, and 43.20%, respectively. Removal of ammonia (81.60%) increased significantly after final adsorption onto clinoptilolite (25 g/L, 4 h contact time). Removal of COD after successive treatment with calcium oxide, ferric chloride and clinoptilolite was 64.70%, 77.40% and 81.00%, respectively.

landfill leachate ; CaO ; ferric chloride ; clinoptilolite

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Podaci o izdanju

46 (3)

2011.

323-328

objavljeno

1093-4529

1532-4117

10.1080/10934529.2011.539118

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Kemija

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