The document discusses effective microorganisms (EM), a microbial inoculant developed in Japan. It is a mixture of lactic acid bacteria, photosynthetic bacteria, and yeast that work synergistically. EM helps treat waste water and solid waste by increasing beneficial microbes that reduce pollutants like COD and BOD. It can be applied to treat municipal and industrial wastewater, agriculture waste, and lakes/rivers. Examples show how EM reduced sludge and odors when applied to waste treatment plants and Ulsoor Lake in Bangalore.