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Investigation of electrocoagulation on the removal of nickel in waste water from an electroplating bath using aluminium and iron electrodes


 
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1. Title Title of document Investigation of electrocoagulation on the removal of nickel in waste water from an electroplating bath using aluminium and iron electrodes
 
2. Creator Author's name, affiliation, country sarah jerroumi; Extraction, valorisation and spectroscopic studies. Laboratory of organic synthesis, extraction and valorization. Faculty of sciences Ain Chock, Hassan II University, Route d’El Jadida Km 2, BP: 5366, Casablanca Morocco. Research team Hydrogeology, Water Treatment and Climate Change. Environment Engineering Laboratory. Hassania School of public works. Route d’El Jadida, km 7, BP: 8108, Casablanca, Morocco.; Morocco
 
2. Creator Author's name, affiliation, country Stenelvie NGALA; Research team Hydrogeology, Water Treatment and Climate Change. Environment Engineering Laboratory. Hassania School of public works. Route d’El Jadida, km 7, BP: 8108, Casablanca, Morocco. Higher National School of Mechanics and Electricity, Hassan II University. Route d’El Jadida, km 7, BP: 8118, Casablanca, Morocco.; Morocco
 
2. Creator Author's name, affiliation, country Brahim Lekhlif; Research team Hydrogeology, Water Treatment and Climate Change. Environment Engineering Laboratory. Hassania School of public works. Route d’El Jadida, km 7, BP: 8108, Casablanca, Morocco.; Morocco
 
2. Creator Author's name, affiliation, country Jamal Eddine Jamal; Extraction, valorisation and spectroscopic studies. Laboratory of organic synthesis, extraction and valorization. Faculty of sciences Ain Chock, Hassan II University, Route d’El Jadida Km 2, BP: 5366, Casablanca Morocco.; Morocco
 
2. Creator Author's name, affiliation, country Mahjoub Lakhdar; Extraction, valorisation and spectroscopic studies. Laboratory of organic synthesis, extraction and valorization. Faculty of sciences Ain Chock, Hassan II University, Route d’El Jadida Km 2, BP: 5366, Casablanca Morocco.; Morocco
 
2. Creator Author's name, affiliation, country Lahcen Afrine; Maroc Bureau.Km 9.8 Route de rabat 20250, Casablanca, Morocco; Morocco
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) nickel; electrocoagulation; aluminum; iron
 
4. Description Abstract

The electrocoagulation (EC) has proven its effectiveness in the treatment of industrial effluents by the elimination of pollutants, especially metallic pollutants. The electrochemical processes that occur at the electrodes (aluminum or iron) give an excellent performance.

In this work, EC tests were conducted on an industrial effluent from an electroplating bath. The goal is to eliminate the Nickel and reuse the purified water for other needs within the company. For this purpose, we proceeded to the optimization of the operating parameters acting on the efficiency of EC such as electric voltage, material of the electrode, stirring speed and interelectrode distance. We also evaluated these parameters’ effect on pH, conductivity, turbidity and nickel concentration. The tests were carried out in a perfectly stirred reactor on an industrial solution rich on nickel. The concentration of the effluent is 100 mg Ni2+/L. The nickel removal efficiency is approximately 78% for the following operating conditions: aluminum electrodes, regulated voltage of 6 volts, optimum stirring speed of 24 rpm and interelectrode distance of 2 cm.

Resulting sludges from EC were characterized by X-ray diffractometry, infrared spectroscopy (IR) and scanning electron microscopy (SEM). We have identified a compound formed during the EC with Fe/Fe electrodes (Fe2Ni2(CO3) (OH)8 .2H2O (Nickel Iron Carbonate Hydroxide Hydrate) which is a corrosion inhibitor.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s) The National Center for Scientific and Technical Research of Rabat - Morocco
 
7. Date (YYYY-MM-DD) 08-10-2019
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/16366
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v7i4.16366
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Vol 7, No 4 (2019)
 
12. Language English=en en
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2019 Moroccan Journal of Chemistry