There is a ray of hope for hundreds of urban waterbodies, victims of urbanisation and industrial pollution. A combination of bio-ozolyte treatment process and bio-remediation adopted by the State government to save the Ooty Lake, can be used to recover these polluted water bodies.
According to officials, phosphorus and nitrogen are responsible for the rapid growth of water hyacinth, that has invaded many water bodies. The bio-processes will increase the dissolved oxygen (DO), by bringing down the biochemical oxygen demand (BOD) and chemical oxygen demand (COD). DO improves quality of water and replenishes life in water bodies.