Effect of Lemna Minor L. on Textile Effluent Treatment

Textile industry processes are among the most environmentally unfriendly industrial processes, because they produce colour effluent that is heavily polluted the environment. Therefore, effluent from textile industry has to be treated before being discharged into the environment. In this study, experiments were performed using different process parameters like nutrient dosage, dilution ratio, pH and contact time to remove EC, sulphates, phenols and COD from the textile industrial effluent in constructed wetlands with the help of aquatic macrophytes Lemna minor L. From the experiments it was found that the maximum percentage reduction of various parameters in a textile industry wastewater by Lemna minor L. were obtained at an optimum nutrient dosage of 50 g, dilution ratio of 8, pH of 8 and contact time of 4 days. Similarly, the validation experiments results showed that the maximum removal percentage of various parameters like EC, sulphate, phenols and COD in a textile industry effluent is about 80.32, 83.87, 68.22 and 77.32 % respectively. Finally this study was concluded that Lemna minor L. might be used as adsorbents for removing various parameters in a textile industry effluent.