A Alizadeh Osalu - , R&D dept., , Tabriz petrochemical complex, National petrochemical company, Iran
F Seyyednajafi
N Panahi

Along to commitment to sustainable development and environmental necessities and according to violence of sulfate ions concentration in polymeric coagulation plant's wastewater outlet, it is necessary to control of release of ions under acceptable legal regulations, with comparing some methodologies to control of sulfate ions elimination in wastewater, like chemical methods( lime, Barium salts , …) and membrane technologies ns cost of all methods and some environmental consequences of them, anaerobic biological treatment considered as a optimized method to control of sulfate ions concentrations in industrial wastewater