Evaluation of the Coagulation and Flocculation Process Using Plantago major L. Seed Extract as a Natural Coagulant in Treating Paper and Paperboard Industry Wastewater Journal title: Journal of Environmental Health and Sustainable Development Authors: Tahereh Zarei Mahmoudabadi, Mohammad Hassan Ehrampoush, Hoseein Yousofi, Parvaneh Talebi Subject(s):