000100830 001__ 100830
000100830 005__ 20181203020743.0
000100830 02470 $$2DAR$$a1184
000100830 02470 $$2ISI$$a000172095300014
000100830 037__ $$aARTICLE
000100830 245__ $$aPhotochemical-biological treatment of a real industrial biorecalcitrant wastewater containing 5-amino-6-methyl-2-benzimidazolone
000100830 269__ $$a2001
000100830 260__ $$c2001
000100830 336__ $$aJournal Articles
000100830 520__ $$a5-amino-6-methyl-2-benzimidazolone (AMBI), used in the manufacture of dyes, was characterised as a biorecalcitrant compound by means of different biodegradability tests. In order to enhance the biodegradability of this important pollutant, the application of Advanced Oxidation Process (AOPs) as a pre-treatment was explored. Some experiments were addressed to find the most efficient AOP. The systems H2O2/hv, TiO2/H2O2/hv, Fe3+/hv, Fe3+/H2O2 and Fe3+/H2O2/hv were compared. The photo-Fenton system was the most efficient and the optimal conditions (AMBI, Fe3+, H2O2 concentrations) for the degradation of AMBI were found. During the photo-Fenton degradation, experiments were also made to obtain information concerning the evolution of: (a) organic carbon and initial compound concentration; (b) the oxidation state; (c) the toxicity; (d) the biodegradability; and (e) the chemical nature of the intermediates. These analyses show that the solution resulting from the treatment of AMBI is biologically compatible and complete mineralisation can be performed by biological means. A combined photochemical (Fenton) and biological flow reactor for the degradation of AMBI was successfully operated in continuous mode at laboratory scale. 100% of the initial concentration of AMBI and 80.3% of Dissolved Organic Carbon (DOC) were removed in 3.5 hours of total residence time. Finally, some field experiments under direct sunlight carried out at the Plataforma Solar de Almeria, Spain, demonstrated that this solar catalytic system is an effective treatment for this kind of industrial wastewater.
000100830 700__ $$0241605$$g127399$$aSarria, V.
000100830 700__ $$0241465$$g110476$$aParra, S.
000100830 700__ $$aInvernizzi, M.
000100830 700__ $$g106065$$aPéringer, P.$$0240891
000100830 700__ $$aPulgarin, C.$$g106159$$0240005
000100830 773__ $$j44$$tWater Science and Technology$$k5$$q93-101
000100830 909C0 $$xU10268$$0252125$$pLBE
000100830 909C0 $$pGPAO$$xU12575$$0252422
000100830 909CO $$particle$$pENAC$$pSB$$ooai:infoscience.tind.io:100830
000100830 937__ $$aGGEC-ARTICLE-2007-047
000100830 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000100830 980__ $$aARTICLE