Print Email Facebook Twitter Potential impact of methyl isobutyl ketone (MIBK) on phenols degradation in an UASB reactor and its degradation properties Title Potential impact of methyl isobutyl ketone (MIBK) on phenols degradation in an UASB reactor and its degradation properties Author Wang, Wei (Hefei University of Technology) Yang, Kai (Hefei University of Technology) Muñoz Sierra, Julian (TU Delft Sanitary Engineering) Zhang, X. (TU Delft Sanitary Engineering) Yuan, Shoujun (Hefei University of Technology) Hu, Zhenhu (Hefei University of Technology) Date 2017 Abstract Methyl isobutyl ketone (MIBK) as a solvent is extensively used for the phenols extraction from the wastewater, so it is unavoidable to expose in the effluent due to the solubility and leakage problem. The present study evaluated the impact of MIBK on phenols degradation in an UASB reactor and analyzed its degradation properties. The results indicated that the continuous dosing (0.1 g L−1) and impact (10 g L−1) of MIBK had limited effect on phenols removal (1–2% reduction) in the UASB reactor, but the specific methanogenic activity (SMA) values of sludge decreased by 45–75% after MIBK exposure. Anaerobic degradation rate of MIBK fitted well to a pseudo-first-order kinetic equation with respect to the initial concentration of 35 mg L−1 (k = 0.0115 h−1, R2 = 0.9664). Furthermore, the relative methane generation rate constants of MIBK were 0.00816, 0.00613, 0.00273, and 0.00207 d−1 at the initial concentrations of 0.1, 0.5, 5, and 10 g L−1, respectively. MIBK showed higher inhibitory effect on the methanogenesis than on phenols degradation. This study pointed out that the industrial installations should consider the influence of solvent on anaerobic treatment of phenolic wastewater. Subject Methyl isobutyl ketonePhenolic compoundsSolventSpecific methanogenic activityUASB To reference this document use: http://resolver.tudelft.nl/uuid:09192ff6-c894-4862-9ce8-999c9b84f3e6 DOI https://doi.org/10.1016/j.jhazmat.2017.03.033 Embargo date 2019-03-22 ISSN 0304-3894 Source Journal of Hazardous Materials, 333, 73-79 Part of collection Institutional Repository Document type journal article Rights © 2017 Wei Wang, Kai Yang, Julian Muñoz Sierra, X. Zhang, Shoujun Yuan, Zhenhu Hu Files PDF HAZMAT_D_16_03082R2.pdf 791.52 KB Close viewer /islandora/object/uuid:09192ff6-c894-4862-9ce8-999c9b84f3e6/datastream/OBJ/view