Municipal wastewater contains organic contaminants that comprise carbon and nutrients, whereas industrial effluent usually contains metals and other toxic elements besides organic contaminants, depending on the type of industry. The present chapter deals with removal of organic components by an aquatic plant Pistia stratiotes through different inherent processes. Wastewaters, both synthetic and real-life, were chosen for laboratory and field scale phytoremediation study. In the present study, Municipal Wastewater generated from a municipal area of South Kolkata and industrial wastewaters generated from Rice Mill and Pharmaceutical industrie. The Industrial wastes are often low with regard to toxic elements, were subjected to phytoremediation, facilitating disposal and utilization of harvested exhausted crops as fodder in environment-friendly manner. During experiments (both lab and field) plant sustains and grows in different concentrations and advocates sustainable use patterns. The study reveals that the utilization perspective of Pistia stratiotes as fodder is potential both in terms of protein and fibres.