List of Articles حذف بیولوژیکی Open Access Article Abstract Page Full-Text 1 - Study on Biological Removal of Cyanide from Artificial Sewage and Identify Resistant Microorganisms to Cyanide mirmehrdad mirsanjari gholamreza siyadati 10.22034/jest.2020.23305.3237 Open Access Article Abstract Page Full-Text 2 - Effective removal of phosphorus from sewage using a modified biological method Feyzollah Paserh S. Mahdi Borghei seyyed nezameddin hosseini Amirhossein Javid 10.22034/jest.2017.11621 Open Access Article Abstract Page Full-Text 3 - Optimization of effective parameters in the biological treatment of heavy metals (Nickel, Copper) using sequencing batch reactors (SBRS) Morteza Khosravi Mohammad Rabani Mohammad Reza Allahgholi Ghasri Mohammad Javad Ebrahimi Zarandi Open Access Article Abstract Page Full-Text 4 - Removal of lead-heavy metal from industrial waste using three microalgae species Scenedesmus acutus, Scenedesmus incrassatulus, and Scenedesmus obliquus Mahdi Alayi Ahmad mohammadi Hamid Mashhadi fahimeh mahmoudnia 10.30495/iper.2022.1950005.1764