Evaluation of kinetic models for tearing textile dyeing wastewater using UASB reactor
2017; Volume: 03; Issue: 04 Linguagem: Inglês
10.9790/264x-03045765
ISSN2455-264X
AutoresG. Gnanapragasam, V. Arutchelvan, L. Soundari, C.S. Maneeshkumar,
Tópico(s)Nanomaterials for catalytic reactions
ResumoIn this study the wastewaters from textile dyeing industries and tapioca starch (SAGO) were combined for the treatment using two-phase Upflow Anaerobic Sludge Blanket (UASB) reactor.The system was inoculated with seed sludge from the anaerobic digester treating sago wastewater.The processes were carried out by feeding the combined wastewater at different mixing proportion with COD ranging from 5200 to 6320 mgL -1 .The maximum COD conversion was about 53.1 % in acidogenic reactor and 88.5 % in methanogenic reactor.The kinetic values obtained for Haldane's model a, b and c is 0.034, 19 and 8031, for modified Stover-Kincannon model is R max =3.48 gL -1 d -1 and K B =7.77 gL -1 d -1 and for Grau second-order model the values of a, and b were found to be 0.197 and 1.42.Among the other three kinetic models, Grau second order model and Stover-Kincannon model were observed to be the preeminent model for predicting the performance of two phase hybrid UASB reactors for treating combined real textile dyeing and sago wastewater with higher average regression coefficients (R 2 =0.979).
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