HASNI, FadjraSIDI YAKOUB, Salima2024-01-222024-01-222016https://theses.univ-temouchent.edu.dz/opac_css/doc_num.php?explnum_id=893https://dspace.univ-temouchent.edu.dz/handle/123456789/1591The new Algerian regulations require the purification of waste water before releasing them into the environment, so the situation of HENKEL company of Ain-Temouchent. Our work consists to the water quality of the factory Henkel at the inlet and the outlet of the treatment plant, performing physical and chemical analyzes of water in different phases of treatment. Data quality and quantity for the rejection of the plant are operated to provide a resizing of the main works of the station.wastewater, physical-chemical parameters, purification, dimensionnement.