Screening the six plant species for phytoremediation of synthetic textile dye waste water. (2022)

• Record Type: Journal Article
• Authors: Kaur, Navjeet; Kaushal, Jyotsna
• Is Part Of: Materials today. Volume 71(2022)Part 2
• Page Start: 232
• Page End: 238
• Publication Date: 2022
• Subjects: Wastewater treatment -- Congo red -- Methylene blue -- Decolorization -- Phytoremediation; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.08.512
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Most of the dyes are carcinogenic and mutagenic in nature. Plants are potential candidates to remediate textile dye wastewater from contaminated sites. The present study aimed to design an efficient hydroponic system to screen potential ornamental plant species for removal of synthetic dye solution of triarylmethane dye Methylene Blue (MB) and diazo dye Congo Red (CR). The plants selected for screening are Trachyspermum ammi, Tagetes erecta, Hibiscus rosa-sinensis, Chrysanthemum indicum, Bryophyllum fedtschenkoi, and Catharanthus roseus. The phytotreatment of dyes was done up to 40 h for two different concentrations of dyes, i.e., 10 and 20 mg L −1 . Among screened plant species, the maximum decolorization was obtained from T. ammi followed by B. fedtschenkoi. Both plant species showed active growth in indigenous designed hydroponic system even after the phytoremediation process. T. ammi decolorized the MB dye 99 % (10 mg L −1 ) and 86 % (20 mg L −1 ) while the decolorization of the CR dye solution was up to 95 % (10 mg L −1 ) and 84 % (20 mg L −1 ). T. ammi was found to have maximum potential among screened plants for the removal of MB and CR dye from synthetic dye solution and can be used for phytoremediation of wastewater contaminated with synthetic dyes.