Ecological Assessment of wastewater treatment technologies

Water is ¿elixir of life¿ and one of the most integral components of the environment. However, in recent years the quality of natural water has been altered seriously, mainly due to human interferences in natural processes. Recycling and reuse of wastewater is promising technique to reduce the pollution load on surface water bodies. Phytoremediation is a cost effective, environment friendly, aesthetically pleasing and most suitable approach for the appropriate treatment of wastewater. This book demonstrated a reduction in heavy metals and organic contents by using this technique with some modifications,to below toxic levels. Including Ozonation technique with this enhances the treatment capacity of existing sewage treatment plant due to its strong oxidant nature. On the basis of present findings and experimental designing it is recommended that addition of phytoremediation and ozonation techniques with the existing Sewage Treatment Plants (STPs) shall further improve the efficiency of STPs and solve the problems of wastewater treatment.