A study of aquatic macrophyte for remediation of chromium and cadmium in wastewater effluents in Yenagoa Metropolis, Niger Delta

Although aquatic macrophytes have been used individually for wastewater remediation, there is a dearth of studies comparing their efficiency level to determine the most effective remediation specific heavy metals. This study aimed macrophyte amongst Eichhornia crassipes, Pistia stratiotes, Nymphaea nouchalli, Lemna minor and Ceratophyllum demersum Cr Cd from effluents in Yenagoa Metropolis, Niger Delta. Wastewater samples emulsion paint industries were collected six locations (L1-L6) analyzed concentration using Inductively Coupled Plasma Atomic Emission Spectroscopy. The treated with these assessed every two weeks weeks. Results showed that mean (0.27mg/L) levels (0.080mg/L) higher than recommended WHO limits 0.05 0.003mg/L respectively. concentrations reduced minimum values by P. statiotes (0.003±0.001mg/L) E. crassipes (0.000±0.000mg/L) removal potentials order stratiotes > N. nouchalli L. C. Cr, Cd. It was concluded (with 97% efficiency) (87.5% efficiency). Therefore considered good phytoremediators.