Toxicologia Ambiental e Analítica

Degradation of Textile Dyes by Isolated Lysinibacillus sphaericus Strain RSV-1 and Stenotrophomonas maltophilia Strain RSV-2 and Toxicity Assessment of Degraded Product

Abstract

Rajeswari K, Subashkumar R and Vijayaraman K

An attempt was made to study the toxic nature of dye degraded product(s) which was degraded by previously isolated two potential strains namely Lysinibacillus sphaericus RSV-1 and stenotrophomonas maltophilia RSV-2. The phytotoxicity and cytotoxicity of degraded product(s) were tested on Triticum aestivum (co w) and human embryonic kidney cell line (HEK 293) respectively. Results revealed that the degraded product(s) was nontoxic in nature with respect to phytotoxicity as well as cytotoxicity study. Further the strains were utilized for the treatment of real textile dyewaste effluent and the result found that there was considerable reduction in Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Organic Carbon (TOC) of real textile effluent. Therefore the strains could be effectively utilized for the treatment of real textile dye effluent having high concentration of reactive dyes.