PHYTOREMEDIATION OF CONGO RED AND BRILLIANT GREEN USING Lemna minor

Textile dyes have provided a wide range of colorfast, bright hues. However, their toxic nature has become a cause of grave concern to environmentalists. Use of Textile dyes has an adverse effect on all forms of life. Plants could have a lot of advantages such as cost-effectiveness, aesthetic advantages, long-term applicability. They may also be applied at the polluted sites where other treatment methods are too expensive. Our study aims to determine the effectiveness of an aquatic plant (Lemna minor) in removing dyes from water. Lemna minor was used to treat (0.01, 0.04 and 0.07) µg/L of Congo Red (CR) dye and Brilliant Green (BG) dye for 21 days under ambient temperature (28±2°C). To investigation the aim of this study (Total chlorophyll, Chlorophyll a, Chlorophyll b, Total protein, Superoxide dismutase enzyme (SOD), Catalase enzyme (CAT) and removal ratio of dyes) was measurement. The results showed that the removal percentage of CR dye was higher than BG (51% and 9% of at 0.01 µg/L during 7th days and 1st day respectively. Chlorophyll pigments and protein contents were decreased during the seven day. Lemna minor biomass was increased significantly with increasing of concentrations of CR and BG compared with control. Moreover, BG was more efficient for decreasing plant biomass of the growing plants compared to CR.