Biodegradation tests for leachates from a technical landfill in Algiers

Balamane-zizia,,, O.; Atmanib, F.; Nasrallahc., N.

algerian journal of environmental science and technology
Volume 5, Numéro 3, Pages 1072-1078
2019-03-30

Biodegradation Tests For Leachates From A Technical Landfill In Algiers

Authors : Balamane-zizia,, O. . Atmanib F. . Nasrallahc. N. .

Abstract

The purpose of this study is to test the biological treatment of leachates from Corso landfill (East of Algiers). These leachates are characterized by high concentrations of organic matter, (CODmax=6000 mgO2/L; BOD5 max= 3400 mg / L), which gives a ratio BOD5 / COD of 0.56 showing that the leachate is young and has a good biodegradability, and confirming the fact that a biological treatment is possible. Similarly, high level of mineral matter was observed (Conductivity max= 43mS/cm), pH is neutral to basic tendency; values vary between 7 and 8.5. The results obtained after the kinetics of biodegradation allowed reducing the COD of 60% on average. In addition, a significant decrease in color after treatment was observed.