Pierre-Marie Badot and Grégorio Crini -> https://chrono-environnement.univ-fcomte.fr/spip.php?page=perso&nom=CRINI&prenom=Gr%C3 % A9gorio] publishes a state of art and technique in the journal Techniques de l’Ingénieur, entitled "Complémentarité de tools tool pour a toxicity des rejets industriels" .

Industrial discharges, even if respected, can be toxic to the environment and living organisms. There is therefore a real interest in coupling two different but complementary approaches, such as chemical analysis and ecotoxicology, for an identifier not only qualitatively and quantitatively, the substances imported into the discharges but also their environmental quality. Since the 2000s, a growing number of research projects have been published, notably by Chrono-environnement, which were published for the first time, a while ago, of effluent characterization results surface treatment, industrial sector of excellence in Franche-Comté, from biological tests using a bioindicator plant coupled with chemical analysis. This state of the art is what ecotoxicological tests are useful for evaluating and comparing effect toxicity, in addition to the chemical analysis that characterizes pollutants released from a qualitative and quantitative point of view.

INTRODUCTION

Aqueous discharges from the surface treatment industry contain a set of contaminants including metals. These releases, even if they comply with the regulations in force, can be toxic for the environment and living organisms. There is therefore a real interest in coupling two different but complementary approaches, such as chemical analysis and ecotoxicology, to not only qualitatively and quantitatively identify the substances present in the releases but also to assess their environmental quality. Since the 2000s, a growing number of research projects involving chemists and biologists have been published, this association aimed at characterizing various industrial discharges. The objective of this article is to show that ecotoxicological tests are relevant tools to evaluate and compare the toxicity of effluents such as those of the surface treatment sector, in addition to the chemical analysis that characterizes the contaminant load. a rejection from a qualitative and quantitative point of view. An example of water engineering research to measure the chemical efficiency of water treatment processes is also described.