POSSIBILITY OF ELIMINATION OF LEAD BY COAGULATIONFLOCULATION WITH ALUMINUM SULPHATE
Journal Title: Larhyss Journal - Year 2017, Vol 31, Issue 31
Abstract
The objective of our work is to study the possibility of eliminating lead by coagulation-flocculation at the aluminum sulphate. The tests are carried out according to the protocol of the "Jar-test" in synthetic solution of distilled water. The results showed that the lead removal efficiency is of the order of 15.16%, this rate corresponded to an optimal dose of the coagulant of 40 mg / L. A very good improvement was obtained at pH greater than 6. With the change in the initial lead content (2 to 12 mg / L), the process of coagulation-flocculation has undergone two antagonistic phenomena, removal efficiencies increase with the increase of the initial content of lead until 8mg/L. Then a proportional decrease in yields in excess of this value. To visualize the effectiveness of coagulation - flocculation and adsorption to eliminate lead, we have carried out the coagulation-flocculation coupling and the adsorption by the activated carbon powder as adjuvant, this test showed good elimination of lead as the dose of the adjuvant was increased.
Authors and Affiliations
GUERGAZI S. | Laboratoire de Recherche en Hydraulique Souterraine et de SurfaceLARHYSS, Faculté des Sciences et de la Technologie Université de Biskra, BP 145 RP, 07000, Biskra, Algérie, AMIMEUR D. | Laboratoire de Recherche en Hydraulique Souterraine et de SurfaceLARHYSS, Université Mouloud Mammeri deTizi Ouzou, Algérie, ACHOUR S. | Laboratoire de Recherche en Hydraulique Souterraine et de SurfaceLARHYSS, Faculté des Sciences et de la Technologie Université de Biskra, BP 145 RP, 07000, Biskra, Algérie
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