2002
DOI: 10.1016/s0043-1354(01)00445-6
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Combined chemical and biological degradation of tannery wastewater by a periodic submerged filter (SBBR)

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Cited by 95 publications
(42 citation statements)
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“…Concerning wastewater COD, Karahan et al [10] identified through analysis of the particle size distribution and oxygen uptake rate a very slowly biodegradable fraction that exerted an inhibitory effect on the biomass, which is related to the required high HRT values. Di Iaconi et al [11] reported an increase (from 90 to 96 %) in the COD removal efficiency for the biological treatment of tannery wastewaters by prior ozonation, which achieved the breakdown of large non-biodegradable molecules into simpler organic molecules that could be degraded during the biological stage.…”
Section: Introductionmentioning
confidence: 99%
“…Concerning wastewater COD, Karahan et al [10] identified through analysis of the particle size distribution and oxygen uptake rate a very slowly biodegradable fraction that exerted an inhibitory effect on the biomass, which is related to the required high HRT values. Di Iaconi et al [11] reported an increase (from 90 to 96 %) in the COD removal efficiency for the biological treatment of tannery wastewaters by prior ozonation, which achieved the breakdown of large non-biodegradable molecules into simpler organic molecules that could be degraded during the biological stage.…”
Section: Introductionmentioning
confidence: 99%
“…Many of these compounds are resistant to biological degradation and/or can inhibit the activity of the biomass in treatment plants. To remove these pollutants, it is necessary to apply at least a physicochemical treatment as a polishing step after a biological treatment [1,15,16]. The coagulation-flocculation process is one of the most frequently used treatments for tannery wastewater, but it is usually applied as pretreatment [14,17,18].…”
Section: Introductionmentioning
confidence: 99%
“…Para controlar este fenómeno se deben implementar las acciones tendientes a reducir la descarga de estos contaminantes, más aun teniendo en cuenta que se han incrementado los niveles de exigencia en la normatividad ambiental vigente en muchos países del mundo [8][9].…”
Section: Introductionunclassified