16 124 818 livres à l’intérieur 175 langues
2 047 051 livres numériques à l’intérieur 101 langues
Cela ne vous convient pas ? Aucun souci à se faire ! Vous pouvez renvoyer le produit dans les 30 jours
Impossible de faire fausse route avec un bon d’achat. Le destinataire du cadeau peut choisir ce qu'il veut parmi notre sélection.
Politique de retour sous 30 jours
The tremendous increase in the use of heavy metal ions over the last few decades has inevitably resulted in an increased flux of metallic substances in the water resources. Presence of small amount of these metals in water resources poses unacceptable chronic and acute health risks due to their non-biodegradable and persistence in nature. Therefore, not only first generation is affected by heavy metal, but the affect also passes onto the second and third generations in terms of genetic abnormalities and birth defects. Heavy metals are toxic in both their organic and inorganic forms and affect human beings by damaging the nervous system, immune system, renal system and endocrine system when these are present above their permissible standards. To reduce the resource depletion rate and protect the sustainable development concept, recovery of heavy metals from water/wastewater becomes important.