Adsorption of Chromium From Tannery Wastewater by Surface Response Method

摘要

Increases in industrial density and human populations, along with continued use of old and polluting technologies, have led to an increase in environmental pollution. Because environmental protection has become a global issue, cleaner and greener technologies are warranted to abate industrial pollution. In this article, we explore opportunities to use locally available, plant-based and other materials that can be used to remove chromium trivalent (Cr[Ⅲ]) and chromium hexavalent (Cr[Ⅵ]) ions and to control other pollutants (e.g., biological oxygen demand [BOD], chemical oxygen demand [COD], and sulfides) in the processing of animal skins.