Wastewater treatment of the Ernesto Che Guevara nickel production company

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Published: Sep 27, 2019
Keywords:
water residual treatment

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Sorangel Rivas Romero
Centro de Investigaciones del Níquel
Aimet Romulo Rodríguez
Centro de Investigaciones del Níquel
Gerardo Menés Vuelta
Empresa del Níquel Ernesto Che Guevara

Abstract

At the Nickel Research Center, a research was carried out to evaluate a treatment for wastewater from one of the canalization (MAE-3) of the Ernesto Che Guevara Nickel Production Company, with the aim of reducing the polluting load discharged to the environment for this MAE and the reincorporation of water to the productive process. This canalization pours, on average, 276 m3/h of water from the wastewater from the process plants and from the ammonia absorption operations. The applied treatment consisted of coagulation-flocculation and ion exchange with zeolite. It was demonstrated, by laboratory scale tests, that coagulation with aluminum sulphate at a dose of 10 ppm and flocculation with flocculant A 130 at a dose of 0,6 ppm, achieved the elimination of 99,87 % of the solids in suspension and elements such as copper, iron and nickel considerably reduce their concentration. With the use of zeolite can reduce the concentration of nitrogen present in the residual, decreasing the ammonia concentration of about 15 % of the initial. Obtaining a water with physical-chemical characteristics suitable for re-use in tasks of washing of the plants and for the watering of the mining roads, besides that it could be reincorporated to be softened and used in the systems of ammonia absorption; stopping the consumptiom of volume of water of 2 106 816,72 m3/year of the dam that supplies the population of Moa municipality.

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How to Cite
Rivas Romero, S., Romulo Rodríguez, A. and Menés Vuelta, G. (2019) “Wastewater treatment of the Ernesto Che Guevara nickel production company”, INFOMIN, 11. Available at: https://infomin.edicionescervantes.com/index.php/i/article/view/124 (Accessed: 30 April 2026).
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Vol. 11 (2019): january-december
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Artículos Originales

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