Treatment of textile effluent by phytoremediation with the aquatic plants: Alternanthera sessilis

Abstract

India has a large network of textile industries of varying capacity and textile effluent is one of the main contributors of water pollution and it adversely affects fauna and flora. Phytoremediation technology can be effective approach for remediating contaminated sites of such textile dyeing effluents. The objective of this research is to study the efficiency of aquatic macrophytes plant contributed for remediation of textile waste water. In this study, lab scale wetland was constructed and tested with Alternanthera sessilis, sand and gravel as filter. Results indicated that, textile effluent degradation and significant reductions in TS (78%), TDS (83%), TSS (38%), COD (65%), BOD5 (66%), chloride (44%), hardness (76%) and TDS (59%) were observed by the combined use of plants within 24 hrs. The removal efficiency of unplanted were TS (50%), TDS (50%), TSS (29%), COD (27%), Hardness (57%), Chloride (26%), BOD5 (27%) respectively. When compared the removal efficiency of planted with unplanted, planted shows a maximum removal the results showed that the removal efficiencies of the organics TDS, COD and BOD5 were improved significantly with the extension of HRT. This objective of study and efficiency of plants and proposed mechanism of aquatic macrophytes plant contributed for remediation of textile waste water.