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Phy.ico-Chemical Characterization of Industrial Liquid Discharges of Soap Factories in Abidjan, Côte D’Ivoire

Journal of Geoscience and Environment Protection 2017年第8期5卷 198-210页

作者： jean Missa Ehouman Bernard O. y.po agness essoh jean eudes y. gnagne Nahossé Ziao Laboratory.of Thermody.amics and Phy.ical Chemistry.of the Environment (UFR-SFA) UNA Abidjan C&#244te d’Ivoire Laboratory.of Environmental Sciences (UFR-SGE) UNA Abidjan C&#244te d’Ivoire The Central Environment Laboratory.of the Ivorian Anti-pollution Center Abidjan C&#244te d’Ivoire

This work deals with the efficient management of industrial liquid discharges from soap factories (ILDS) in the region of Abidjan. The aim of this work is to evaluate the phy.ico-chemical quality.of these discharges as well as the different ty.es of pollution generated. Seventeen (17) industrial soap sources were studied through fourteen (14) global pollution parameters (T, pH, electrical conductivity.EC, redox potential EH, suspended matter SM, COD, BOD5, biodegradability.factor BF, , , , , total iron and ). A liquid waste collection campaign was done during six weeks from February.to March 2016, corresponding to a period of intensive activity.of these industries. The samples were analy.ed according to the norms of the French Standardization Agency.(AFNOR). Results were compared with the Ivorian guide values recommended by.the Classified Installations Inspection Service (CIIS). Principal Component Analy.is (PCA) is allowed to evaluate the pollution induced by.these factories’ rejection. In addition, Ascending Hierarchical Classification (AHC) method leads to classify.soap factories into three groups according to the phy.ico-chemical quality.of their releases. Moreover, the estimation of the biodegradability.factor is permitted to know the state of the biodegradability.of these effluents.

关键词： Biodegradability ILDS Pollution Soap Industries

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Photocataly.ic Decoloration of Methy. Orange by.TiO2 in Slurry

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American Journal of Analy.ical Chemistry 2024年第11期15卷 347-356页

作者： M’Bra Ignace Christian Konan Affoué Tindo Sy.vie gnagne essoh jean eudes y.es y.couba Zoungranan Touré Late Arsène Ekou Ly.da Ekou Tchirioua Laboratoire de Thermody.amique et de Phy.ico-Chimie du Milieu UFR Sciences Fondamentales et Appliques Universit Nangui Abrogoua dAbidjan Abidjan Cte dIvoire Dpartement de Mathmatiques Phy.ique Chimie Universit Peleforo Gon Coulibaly Korhogo Cte dIvoire

The problem of water depollution is gaining importance, especially.as regulatory.standards concerning drinking water are increasingly.strict. The different industries (textile industries) generate chemically.stable pollutants such as methy. orange which make their degradation difficult. It is therefore necessary.to find new, more effective techniques for the treatment of these discharges. Among the different solutions proposed to deal with this problem, we find advanced oxidation processes (POAs) which are clean and promising technologies in the field of wastewater depollution. In this regard, heterogeneous photocataly.is was used in an aqueous suspension of titanium oxide (TiO2) using a ultraviolet (UV) lamp as artificial radiation. The objective of this work is to study.the influence of some operating parameters such as: the cataly.t mass, the initial pollutant concentration, the volume of the solution and the pH of the solution, were examined. The results obtained showed that this photocataly.t made it possible to degrade 99.85% of the initial concentration of methy. orange (10 ppm), after 240 min of irradiation with an optimal mass of 0.50 g of TiO2 for a volume of 200 mL of methy. orange solution at pH = 3.0.

关键词： Depollution Methy. Orange TiO2 Slurry

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