Open AccessIMPACT OF INDUSTRIAL DYES ON ALGAL GROWTH
Author(s) -
K. Kavitha,
K. Kavitha,
K. Kavitha,
K. Kavitha
Publication year - 2022
Publication title -
journal of global resources
Language(s) - English
Resource type - Journals
eISSN - 2455-2445
pISSN - 2395-3160
DOI - 10.46587/jgr.2022.v08i01.003
Subject(s) - methylene blue , melanoidin , chlorella vulgaris , chemistry , nuclear chemistry , algae , scenedesmus , absorbance , wastewater , chromatography , food science , botany , environmental engineering , biology , organic chemistry , environmental science , photocatalysis , maillard reaction , catalysis
The deterioration of water quality because ofindustrial dye discharges is becoming an emergingenvironmental problem throughout the world. Dyes are directlydischarged into nearby water bodies which in turn affect theaquatic ecosystem and human health. Dyes were degraded bymeans of biological methods. This study involves theapplication of two algae (Chlorella vulgaris and Spirulina) andoxidation pond in the decolourisation of dyes. The UVspectromax M3 spectrophotometer was used in readingabsorbance values. Methylene blue (MB) (20 mg/l, 50 mg/l and100mg/l), Eriochrome Black T (EBT) (20mg/l, 50mg/l and100mg/l) and Melanoidin (100mg/l, 250mg/l and 500mg/l) atdifferent concentrations were used for this study.Decolourisation was recorded in a 10-day experiment. InSpirulina, maximum dye removal was 92.37 percent (20mg/l)in methylene blue dye, 54.24 percent (20 mg/l) in EBT and45.89percent (100mg/l) in melanoidin while in oxidation pond,the maximum dye removal was 91.84 percent (20mg/l) inmethylene blue dye, 93.22percent (20mg/l) in EBT and 46.1percent (100mg/l) in melanoidin and in Chlorella vulgaris, themaximum dye removal was 91.3 percent (20mg/l) inmethylene blue dye, 79.25 percent (20mg/l) in EBT and 57percent (100mg/l) in melanoidin. The dye removal wasdependent on algal concentration and dye concentration. Gelpuncture method was used to determine the toxicity ofindividual dyes on algae (Mixed sample, Scenedesmus andLake Sample) at varying concentration of dyes.