Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. IX
Written by Ratu SAFITRI, Mia MIRANTI, Sri Rejeki RAHAYUNINGSIH, Tuti WIDJASTUTI, Roostita BALIA, Jetty NURHAYATI
Research on biodegradation of black and red Remazol dyes in textile wastewater containing black and red Remazol dyes in concentrations of 500 ppm, 1000 ppm and 1500 ppm was carried out for 14 days in singly and consortium. Strains isolated from effluent containing Remazol black and red dyes. Selected isolates were identified using the API test and known as Bacillus subtilis, Bacillus licheniformis, Bacillus coagulans, and Bacillus cereus. Biodegradation in a consortium can reduce respectively; decolorization reached were 64.18%, 60.11% and 54.27% in Remazol black, and reached 65.46%, 62.92% and 55.90% in Remazol red. COD 77.63-72.92%, BOD 77.31-75.46%, TSS 67,68-52.72%, ammonia 62.85-53.69%. Biodegradation of textile wastewater containing red Remazol decreased respectively, COD 78.6-72.8%, BOD of 78.07-76.33%, TSS 70.14-58.72%, and ammonia 68.51-55.47%. Biodegradation of red Remazol textile dyes results in a greater reduction in concentration than in black Remazol. Also, biodegradation in a consortium results in a greater decrease in dye concentration than singly.
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