List of Articles Biological methods Open Access Article Abstract Page Full-Text 1 - Providing optimal methods for water treatment and waste water containing sulfur color Sahar Tabibian Azam pirkarami Open Access Article Abstract Page Full-Text 2 - An overview of microalgae harvest from aquatic environments using biological methods Hasan Bakhtiari Reza Ansari Tadi Abo Ali Golzari Open Access Article Abstract Page Full-Text 3 - A review of biological methods of Mycotoxin reduction in milk and dairy products fereshteh khayeri Marjaneh Sedaghati Open Access Article Abstract Page Full-Text 4 - Biological Models for Protecting Different Land Use in Arid Areas China G.A. Heshmati