Characterization of the biomass of a hybrid anaerobic reactor (HAR) with two types of support material during the treatment of the coffee wastewater

Silva, Vivian Galdino da; Campos, Cláudio Milton Montenegro; Pereira, Erlon Lopes; Silva, Júlia Ferreira da

doi:10.1590/s1516-89132013000300018

Cited by 5 publications

(2 citation statements)

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“…Based on the results of minimum concentrations of TVS for maintenance of biological activity presented by Silva et al (2011a), Silva et al (2011b) and Silva et al (2013), it can be concluded that the biomass of the UASB reactor studied was biologically active in all periods.…”

Section: Performance Of Uasb Reactor In Treatment Of Wcwpmentioning

confidence: 72%

“…The biomass observed under scanning electron microscopy (SEM) analysis presented little morphological diversity with the predominance of coconuts and methanogenic archaea observed using epi-fluorescence microscopy. Silva et al (2011b) and Silva et al (2013) evaluated a pilot-scale hybrid anaerobic reactor (HAR) treating WCWP operating under progressive increase of organic load (VOLR) ranging from 0.15 to 0.75 kg COD m -3 d -1 with values of HRT varying from 12 to 24 h, also under an endogenous condition. The authors used scanning electron microscopy analysis and epi-fluorescence microscopy to observe an active biomass concentration of TVS varying from 3060 and 4730 mg TVS L -1 , varied morphology and presence of methanogenic archaea.…”

Section: Performance Of Uasb Reactor In Treatment Of Wcwpmentioning

confidence: 99%

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Kinetic parameters of biomass growth in a UASB reactor treating wastewater from coffee wet processing (WCWP)

2014

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This study evaluated the treatment of wastewater from coffee wet processing (WCWP) in an anaerobic treatment system at a laboratory scale. The system included an acidification/equalization tank (AET), a heat exchanger, an Upflow Anaerobic Sludge Blanket Reactor (UASB), a gas equalization device and a gas meter. The minimum and maximum flow rates and volumetric organic loadings rate (VOLR) were 0.004 to 0.037 m 3 d-1 and 0.14 to 20.29 kgCOD m-3 d-1 , respectively. The kinetic parameters measured during the anaerobic biodegradation of the WCWP, with a minimal concentration of phenolic compounds of 50 mg L-¹, were: Y = 0.37 mgTVS (mgCOD removed)-1 , K d = 0.0075 d-1 , Ks = 1.504mg L-1 , μ max = 0.2 d-1. The profile of sludge in the reactor showed total solids (TS) values from 22,296 to 55,895 mg L-1 and TVS 11,853 to 41,509 mg L-1 , demonstrating a gradual increase of biomass in the reactor during the treatment, even in the presence of phenolic compounds in the concentration already mentioned.

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Section: Performance Of Uasb Reactor In Treatment Of Wcwpmentioning

confidence: 72%

Section: Performance Of Uasb Reactor In Treatment Of Wcwpmentioning

confidence: 99%