**7. Conclusion**

In conclusion, and since the coast of Casablanca city is subjected to numerous anthropologic attacks, In front of such a situation, it is indispensable that every industrial unity must be equipped with a wastewater system treatment, to protect the environment and its resources. The treatment of the global discharge shows that there is competitive adsorption between metals. The nickel has more affinity toward crab raw chitin. The waste water treatment by raw chitin from shrimp entrains a decrease of heavy metals contents in the global rejection. The efficiencies on elimination are important and excess 99% for some metals. The use of the raw chitin shows itself of big potential for the treatment of the liquid discharges of the studied unity MAFER. It showed itself capable of treating heavy metals loads superior to 200 mg/l by presenting percentage removal between 90% and 97%, as in the case of Cu2+.

The physic-chemical characterization shows that the currents rinses are greatly loaded with heavy metals far exceed the proposed limit values Morocco PVL. The adsorption test of heavy metals on raw chitin showed interesting results for the current rinses. Besides the rejection colored before adsorption (case of Ni, Cu, and Cr) becomes colorless after treatment with raw chitin. The study of the rinses currents treatment by raw chitin, we allowed the description of a treatment facility based on chitin. Consequently the adsorbing support raw chitin must be added in the treatment stations of the effluent of the units of surface treatment to eliminate the metallic pollution.

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**Author details**

Boukhlifi Fatima

Meknes, Morocco

*Characterization and Treatment of Real Wastewater from an Electroplating Company by Raw…*

Materials and Applied Catalysis Equip (MCA), Laboratory of Chemistry and Biology Applied to the Environment, Faculty of Science, My Ismail University,

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

\*Address all correspondence to: boukhlifi1@yahoo.fr

provided the original work is properly cited.

*DOI: http://dx.doi.org/10.5772/intechopen.89058*

*Characterization and Treatment of Real Wastewater from an Electroplating Company by Raw… DOI: http://dx.doi.org/10.5772/intechopen.89058*
