Treatment of landfill leachate effluent by chemical ‎coagulation and electrocoagulation: without correction of ‎pH | ASJP

algerian journal of environmental science and technology
Volume 3, Numéro 2, Pages 51-55

Treatment Of Landfill Leachate Effluent By Chemical ‎coagulation And Electrocoagulation: Without Correction Of ‎ph

Authors : Rabahi A, Benchikh E. M, Arris S,

Abstract

The objective of the present study is to see the difrence between ‎traditional physicochemical process such as chemical ‎coagulation and electrocoagulation process treating a Landfill ‎Leachate effluent.‎ As it's known Leachate is difficult to treat to meet to the discharge ‎standards for its variable composition and proportion of ‎refractory materials.‎ We used Jar test experiments for chemical coagulation, ‎Aluminium sulphate (Al2(SO4)3,10 H2O) as a coagulant, we also ‎perform to compare the removal efficiencies of different ‎pollutants as phenol, nitrate and total organic carbon for each ‎method. ‎ Experimental results of electrocoagulation using an aluminum ‎electrode with a current density of 166.6 A/m2 and a residence ‎time of 150 min have shown its important removal capacity as ‎total organic carbon and turbidity were 78.24% and 98 % ‎consecutively, who were better than chemical coagulation ‎results.‎ Furthermore, it can be concluded that the electrocoagulation ‎technique is rapid since the active agents of coagulation are ‎produced as the experiment proceeds‎

Keywords

LandfillLeachate;‎ Electrocoagulation;‎ chemical coagulation