Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7482275 | Journal of Environmental Management | 2015 | 5 Pages |
Abstract
The effect of ozonation catalyzed with MgO/granular activated carbon (MgO/GAC) composite as a pretreatment process on the performance of cyclic rotating-bed biological reactor (CRBR) for the catechol removal from wastewater has been investigated. CRBR with acclimated biomasses could efficiently remove catechol and its related COD from wastewater at organic loading rate (OLR) of 7.82Â kg COD/m3.d (HRT of 9Â h). Then, OLR increased to 15.64Â kg COD/m3.d (HRT of 4.5Â h) and CRBR failed. Catalytic ozonation process (COP) used as a pre-treatment and could improve the performance of the failed CRBR. The overall removal efficiency of the combined process attained respective steady states of 91% and 79% for degradation and COD removal of catechol. Therefore, the combined process is more effective in degradation and COD removal of catechol; it is also a viable alternative for upgrading industrial wastewater treatment plant.
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Authors
Ali Ahmad Aghapour, Gholamreza Moussavi, Kamyar Yaghmaeian,