efficient wastewater treatment technologies: modern solutions for ecology and industry

wastewater treatment plants ecology water resources sewage industrial biological mechanical physical chemical methods sedimentation flotation filtration membrane technology biofilters aerobic processes anaerobic uvo reactors pollution removal treated activity aquatic ecosystems heavy metal nitrates phosphates suspended solids urban supply reuse reclamation pollutants aeration tanks activated sludge septic system modernisation equipment pumping stations filter ozonator disinfection bactericidal coagulation