Etude et élaboration d’un nouveau procédé de traitement des effluents industriels contaminés par les métaux par électrodéposition

Type : Mémoire de Master
Directeurs du mémoire/thèse :  S.BRICKCHAOUCHE, A.HADDAD
Année :  2019
Domaine : Génie Chimique
Etablissement :  Université des sciences et de la technologie Houari Boumediène (USTHB)
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  Electrochemical methods, inorganic sulphur compounds, inharmful metals

Résumé :

Currently,Electrochemical methods find wide application in the treatment of industrial effluents to reduce their organic matter content, in inorganic sulphur compounds and nitrogen,or inharmful metals for the environment. Electrochemistry is not only applied to wastewater,but also on contaminated soils, incineration residuesor sewage sludge wastewater from the metallurgical industry. Electrochemistry has proved its effectiveness, which allowed him to integrate the environmental industry. Environmental electrochemical technologies allowto control pollution,to recycle materials,to carry out the rehabilitation of sites,monitoring (monitors and sensors for gases and liquids),the efficient conversion of energy, the prevention of corrosion, removal of contaminantsand disinfection of water. Electrochemical processes can therefore be efficient and economical when properly designed,and they integrate harmoniously with the environmental industry. These processes require compact installationsand can thus integrate into existing industrial waste treatment chains. The present work aims so the elaboration of an electrochemical process of treatmentand purification of industrial effluentscontaminate with metals. Indeed, the use of this technique can allow both the elimination of these metals by electroplating on a cathode,a recovery of metals, a saving of precipitation reagents and a reduction in the amount of sludge to be removed,as well as surface treatmentswhere the applications concern gold recovery, silver, copper, cadmium, nickel, zinc, iron and lead ... etc.The metal that can be recoveredin the form of valorizable cathodes,which allows the depollution of the environment. This work requires in-depth studies of design considerationsand the development of an electrolytic cell.