Textile industrial Effluent Treatment Plants (ETP) and Sewage Treatment Plants (STP)   are constructed to protect the environment from excessive overloading from different kinds of pollutants. The effluent must meet the appropriate discharge standards as per pollution control board before discharging it to the environment. Improper treatment process conditions at treatment plants result in the release of effluent that may contain toxins and unacceptable high levels of dangerous organic and inorganic materials into various water bodies and the land environment so it is necessary to adopt proper treatment technology for the treatment. The present paper is reviewed for performance evaluation of ETP, STP and Coagulation and Flocculation process. Coagulation and Flocculation is not an Eco-friendly approach so Electrocoagulation (EC) is also reviewed to know the removal efficiencies of pollutant loads.