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

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


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.

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S. Renou, J.G. Givaudan, S. Poulain, F. Dirassouyan, P. Moulin, Landfill leachate treatment, review and opportunity, J. Hazard. Mater. 150 (2008) 468–493.

J. Labanowski, V. Pallier, G. Feuillade-Cathalifaud, Study of organic matter during coagulation and electrocoagulation processes, Application to a stabilized landfill leachate. J. Hazard. Mater 2010,179:166-172.

Ruo He, Xiao-Meng Wei, Bao-Hu Tian, Yao Su, Yu-Lan Lu, Characterization of a joint recirculation of concentrated leachate and leachate to landfills with a microaerobic bioreactor for leachate treatment,Waste Management, Volume 46, December 2015, Pages 380-388.

Izabela Anna Talalaj, Pawel Biedka, Impact of concentrated leachate recirculation on effectiveness of leachate treatment by reverse osmosis, Ecological Engineering, Volume 85, December 2015, Pages 185-192.

Francisca C. Moreira, J. Soler, Amélia Fonseca, Isabel Saraiva, Rui A.R. Boaventura, Enric Brillas, Vítor J.P. Vilar, Electrochemical advanced oxidation processes for sanitary landfill leachate remediation: Evaluation of operational variables,Applied Catalysis B: Environmental, Volume 182, March 2016, Pages 161-171.

Xian Liu, Xiao-Ming Li, Qi Yang, Xiu Yue, Ting-Ting Shen, Wei Zheng, Kun Luo, Yi-Hu Sun, Guang-Ming Zeng, Landfill leachate pretreatment by coagulation–flocculation process using iron-based coagulants: Optimization by response surface methodology, Chemical Engineering Journal, Volumes 200–202, 15 August 2012, Pages 39-51.

Persin F, Rumeau M, Le traitement électrochimique des eaux et des effluents. Tribune de l’Eau 3(42), 1989, p45–46.

Nazih K. Shammas, Marie-Florence Pouet, et Alain Grasmick, flotation technology, Wastewater Treatment by Electrocoagulation–Flotation, London, Springer, 2010, p 199-220.

Ramesh Babur, Bhadrinarayana N, Meera K, Anantharaman N, treatment of tannery wastewater by électrocoagulation, journal of the university of chemical technology and metallurgy, 2007, 42, 2, p 201-206.

Ilhan F, Kurt U, Apaydin O, Gonullu T, treatment of leachate by electocoagulation using aluminum and iron electrodes, hazardous materials, 2007, 154, p 381-389.

F. Bouhezila, M. Hariti, H. Lounici, N. Mameri, Treatment of the OUED SMAR town landfill leachate by an electrochemical reactor, Desalination 280 (2011) 347–353.

Golder A.K., Samanta A.N, Ray S, Removal of Cr3C by electrocoagulation with multiple electrodes: biopolar and monopolar configurations, J. Hazard. Mater, 2007,141, p 653–661.

M.F.Edline, l’épuration physico-chimique des eaux (théorie et technologie), la coagulation et la floculation, CEBEDOC, 1991, p.183-229.

Nathalie M, Patrick D and al,Comparison between electrocoagulation and chemical precipitation for metals removal from acidic soil leachate Journal of Hazardous Materials, 2006, 581–590.

APHA, 1992, Standard Methods for the Examination of Water and Wastewater, 18th ed. (American Public Health Association,Washington DC).

E.A. Vik, D.A. Carlson, A.S. Eikum, E.T. Gjessing, Electrocoagulation of potable water,Water Res. 18 (1984) 1355–1360.


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