PHYSICAL-CHEMICAL TREATMENT OF LEACHATE FROM LANDFILL
(EN)
KAPETANIOS, E
(EN)
LOIZIDOU, M
(EN)
VITHOULKAS, N
(EN)
The results of a bench scale chemical-physical treatment of sanitary leachate are reported. The use of lime in combination with ferrous sulphate and polyelectrolyte gave a 39% COD removal. The initial concentrations are in the range of 4000 -8500 mgl-1 and the BOD/COD ratio 0.10-0.2, indicating the non -biodegradability of the organic compounds present. By using alum with polyelectrolyte, a lower removal was achieved compared with that of a lime system, but still quite high being in the range of 31%. The organics removed from the leachate are of the highest reported in literature indicating the effectiveness of the chemical treatment.
(EN)