Phytoremediation of emulsion paint wastewater using Azolla Pinnata, Eichhornia Crassipes and Lemna Minor

Abstract


 
 
 The use of three macrophytes namely Azolla pinnata, Eichhornia crassipes and Lemna minor for the phytoremediation of emulsion paint wastewater was investigated. Samples of the paint wastewater and test plants were collected and analyzed for physicochemical characteristics and heavy metal concentrations before and after phytoremediation for six weeks. The TDS of the treated wastewater was reduced by over 80.0% by each of the test plants while the TSS increased as a result of debris from withered test plants. Dissolved oxygen reduction ranged from 12.5% to 50.0%, COD from 49.5% to 57.1%, BOD from 46.7% to 54.7, heavy metals from 11.0 to 92.5%. A. pinnata appears to have performed significantly better (P < 0.05) than the other plants followed by E. crassipies and L. minor. It can be concluded that the test plants (especially A. pinnata) can be effectively used for the preliminary treatment of paint wastewater.
 
 

Performance of Selected Plants Based Growth on Landfill Leachate Treatment Using Wetland Application

“…The increase in the BOD/COD ratio indicated that the processing plant produces treated leachate to be more biodegradable. The increase in the BOD/COD ratio through the processing of these plants is in line with the results of previous phytoremediation studies (Echiegu et al 2021;Hamidah and Widiyanti 2021). In terms of contaminant elimination, the results were comparable to the performance of leachate treatment using membrane filters and anaerobic membrane bioreactors (Abuabdou et al 2022;2020).…”