Dépollution biologique des lixiviats de la décharge des déchets de Mpasa à Kinshasa, R D Congo avec le jus d’Averrhoa carambola (Oxhalinaceae)

Abstract

The center of technical burying of the garbage of Mpasa in Kinshasa in RD-Congo produces leachates of black-gray color, toxic which lose hardy their character fouling by treatment with the classic methods of unpollution. The biologic processing consisting in mixing the leachates with the juice of fruit of Averrhoa carambola collided acidic to slightly sugary flavor in some proportions has been tested. It shows that the solution Lix test (1: 10) mineralizes in deed these leachates .Thus, the physic-chemical and microbiological properties of this solution test to better output have notably changed, the pH of 12.3±0.1 to 7.6±0.2. The electric conductivity of 6.9±5.7 mS/cm to 4.7±5.5 mS/cm, the DCO of 13,797±1187 mgO2/L to 2,250± 528.4 mgO2/L. the DOWRY of 3.0±0.8 mg/L to 5.6±0.1 mg/L. So in relation to the solution stallion, the concentrations of the heavy metals decreased appreciably in the solution Lix test (1: 10), those of the following elements: Cl, K, S and Co also increased. Naturally this unpollution resulted in this case in the apparition of the shapes of life the maggots, the mosquitos and other. These tests are going to be finalized in a pilot process under spreading where the microorganisms will be the main actors.