2002
DOI: 10.2166/wst.2002.0359
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Using a UASB reactor for thickening and digestion of discharged sludge from submerged aerated biofilters

Abstract: Results from one year of experimental monitoring the wastewater treatment plant of UFES (Federal University of Espírito Santo) treating a residential urban area of city of Vitoria ES, Brazil, have shown a good performance by a UASB reactor as a part of domestic sewage treatment and also performing aerobic sludge thickening and digestion. The total solids concentration around 6% was obtained in main sludge blanket at bottom of reactor despite a high daily aerobic sludge load discharged from four aerobic submerg… Show more

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Cited by 14 publications
(4 citation statements)
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“…mS eu and mS xu (Figure 3a). These results also indicate that the EBANAR under these operational conditions showed the capacity to treat organic and hydraulic loads, respectively, three and ten times more than the upflow anaerobic sludge blanket (UASB) reactor used in the treatment of municipal wastewater (Cavalcanti et al, 2002;Gonçalves et al, 2002).…”
Section: Resultsmentioning
confidence: 82%
“…mS eu and mS xu (Figure 3a). These results also indicate that the EBANAR under these operational conditions showed the capacity to treat organic and hydraulic loads, respectively, three and ten times more than the upflow anaerobic sludge blanket (UASB) reactor used in the treatment of municipal wastewater (Cavalcanti et al, 2002;Gonçalves et al, 2002).…”
Section: Resultsmentioning
confidence: 82%
“…Biofilm forms on the packing media, through which UASB effluent passes towards the reactor's bottom [18]. The Figure 9 presents an exemplary simplified diagram of the UASB-BF hybrid system [115].…”
Section: Uasb-biofilter (Uasb-bf)mentioning
confidence: 99%
“…Biofilm forms on the packing media, through which UASB effluent passes towards the reactor's bottom [18]. The Figure 9 presents an exemplary simplified diagram of the UASB-BF hybrid system [115]. The biofilter media can consist of materials such as polystyrene, sand, anthracite, zeolites, expanded clay, and a variety of organic waste materials, such as peanut shells, coconut fibres, woodchips, rice straw, and date palm fibres [116].…”
Section: Uasb-biofilter (Uasb-bf)mentioning
confidence: 99%
“…The study was carried out at the Wastewater Treatment Plant (WWTP) situated at the Federal University of Espirito Santo (UFES, Brazil) receiving domestic sewage with average characteristics from a residential urban area of Vitória (south-east Brazil). The WWTP (capacity 2 L/s domestic sewage) comprised a single UASB reactor (35 m 3 ), three secondary submerged aerated biofilters (12 m 3 ) and one tertiary filter associated in series (Gonçalves et al, 2002). This configuration was able to produce <5NTU effluent, allowing easier UV disinfection (Figure 1).…”
Section: Pilot-plant Descriptionmentioning
confidence: 99%