Abstract
Complete mineralization of dye effluent was realized through sequential anaerobic followed by aerobic processes. The aim of this study was to evaluate and compare the degradation of wastewater of four remazol dyes with integrated anaerobic/aerobic (SBR1) and aerobic (SBR2) processes under sequencing batch reactor operation. The ORP profiles show that the SBR1 was in anaerobic condition during the 15 h React mode and turned to aerobic condition through air aeration for 3 h. The SBR1 and SBR2 achieved almost similar performance in the removal of organic compounds with average 95% COD removal. The SBR1 performed better in the color removal with 93% removal efficiency while the SBR2 only attained 50% removal efficiency. The biodegradation rate of the remazol dyes was well described by the first-order kinetic model with the sequence degradation rate remazol pink > remazol violet > remazil yellow > remazol green.
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Ong, SA., Ho, LN., Wong, YS. et al. Comparative study on the biodegradation of mixed remazol dyes wastewater between integrated anaerobic/aerobic and aerobic sequencing batch reactors. Rend. Fis. Acc. Lincei 28, 497–501 (2017). https://doi.org/10.1007/s12210-017-0622-2
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DOI: https://doi.org/10.1007/s12210-017-0622-2