Modelling respirometric tests for the assessment of kinetic and stoichiometric parameters on MBBR biofilm for municipal wastewater treatment

Ferrai, Martina; Guglielmi, Giuseppe; Andreottola, Gianni

doi:10.1016/j.envsoft.2009.05.005

Cited by 52 publications

(16 citation statements)

References 29 publications

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“…This value was higher than the value obtained by Plattes et al (2006) with a filling ratio of 65 %, 2.230 mg/L of biomass and 8 h of HRT. Ferrai et al (2010) had similar values of l H,MAX and Y H,vss to those obtained in this study.…”

Section: Under a Higher Mlss (42 G/l) And Hrt ([24 H) This Shows Thsupporting

confidence: 75%

“…MB has emerged as a highly effective biological treatment process, offering a compact alternative treatment to conventional activated sludge reactors for the treatment of municipal and industrial wastewater (Ødegaard et al 1994). It combines the positive aspects of both suspended and attached growth; in contrast to most biofilm processes, the entire volume can be used for biomass growth (Ferrai et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The design criteria for MB are based on assumptions about the surface loading rate and the retention time in order to achieve the required effluent quality (Ferrai et al 2010); however, to design conventional biological wastewater treatments, kinetic modeling for heterotrophs and autotrophs has become an important tool. Although activated sludge models have wide applications in the field of engineering (Plattes et al 2008), in a hybrid systems, the competition for availability of the substrates between attached and dispersed biomass leads to modifications in the kinetic parameters of both biomass components (Trapani et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Influence of hydraulic retention time on heterotrophic biomass in a wastewater moving bed membrane bioreactor treatment plant

Martín-Pascual

Reboleiro-Rivas

López-López

et al. 2013

Int. J. Environ. Sci. Technol.

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Wastewater treatment using moving bed membrane bioreactor technology was tested with real urban wastewater at a pilot plant, combining moving bed treatment as a biological process with hybrid biomass (suspended and fixed) and the advantages of a membrane separation system. The evolution of the kinetic constants of the hybrid biomass and organic matter removal were studied in a pilot plant under different operational conditions, by varying hydraulic retention time (HRT), mixed liquor suspended solids (MLSS) and temperature, and considering the attached biomass of the carrier and the dispersed biomass of the flocs to reproduce real treatment conditions. The rates of organic matter removal were 97.73 ± 0.81 % of biochemical oxygen demand (BOD 5 ), 93.44 ± 2.13 % of chemical oxygen demand (COD), 94.41 ± 2.26 % of BOD 5 and 87.62 ± 2.47 % of COD using 24.00 ± 0.39 and 10.00 ± 0.07 h of HRT, respectively. The influence of the environmental variables and operational conditions on kinetic constants was studied; it was determined that the most influential variable for the decay coefficient for heterotrophic biomass was HRT (0.34 ± 0.14 and 0.31 ± 0.10 days -1 with 10.00 ± 0.07 and 24.00 ± 0.39 h of HRT, respectively), while for heterotrophic biomass yield, this was temperature (0.61 ± 0.04 and 0.52 ± 0.06 with 10.00 ± 0.07 and 24.00 ± 0.39 h of HRT, respectively). The results show that introducing carriers in an MBR system provides similar results for organic matter removal, but with a lower concentration of MLSS.

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Section: Under a Higher Mlss (42 G/l) And Hrt ([24 H) This Shows Thsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of hydraulic retention time on heterotrophic biomass in a wastewater moving bed membrane bioreactor treatment plant

Martín-Pascual

Reboleiro-Rivas

López-López

et al. 2013

Int. J. Environ. Sci. Technol.

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show abstract

“…They are applied also for the upgrade and retrofit of existing treatment plants (Ferrai et al, 2010). In these systems, the growth of microorganisms occurs on carriers which freely move inside the reactor.…”

Section: Introductionmentioning

confidence: 99%

Determination of the external mass transfer coefficient and influence of mixing intensity in moving bed biofilm reactors for wastewater treatment

et al. 2015

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“…However, the content of the biodegradable fraction of organic contaminants in petrochemical wastewater can depend on the technological outline of the particular oil-refinery and also whether it is analyzed as raw wastewater or wastewater pretreated with physical and chemical unit processes. Authors such as Almeida and Butler (2002), Park et al, (1997), Trela (2000), Wentzel et al, (2000) and others (Dulekgurgen et al, 2006;Ferrai et al, 2010;Garcia-Mesa et al, 2010;Hu et al, 2002;Karahan et al, 2008;Lagarde et al, 2005) describe methods for the determination of fractions of organic carbon materials (determined as chemical oxygen demand -COD), that utilize physical tests and biological assays. There is a lack of data in the reference materials on COD fractions in a pretreated petrochemical wastewater.…”

Section: Introductionmentioning

confidence: 99%

Carbonaceous materials in petrochemical wastewater before and after treatment in an aerated submerged fixed-bed biofilm reactor

Trojanowicz

Wójcik

2016

Chemical and Process Engineering

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Results of the studies for determining fractions of organic contaminants in a pretreated petrochemical wastewater flowing into a pilot Aerated Submerged Fixed-Bed Biofilm Reactor (ASFBBR) are presented and discussed. The method of chemical oxygen demand (COD) fractionation consisted of physical tests and biological assays. It was found that the main part of the total COD in the petrochemical, pretreated wastewater was soluble organic substance with average value of 57.6%. The fractions of particulate and colloidal organic matter were found to be 31.8% and 10.6%, respectively. About 40% of COD in the influent was determined as readily biodegradable COD. The inert fraction of the soluble organic matter in the petrochemical wastewater constituted about 60% of the influent colloidal and soluble COD. Determination of degree of hydrolysis (D H ) of the colloidal fraction of COD was also included in the paper. The estimated value of D H was about 62%. Values of the assayed COD fractions were compared with the same parameters obtained for municipal wastewater by other authors.

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Modelling respirometric tests for the assessment of kinetic and stoichiometric parameters on MBBR biofilm for municipal wastewater treatment

Cited by 52 publications

References 29 publications

Influence of hydraulic retention time on heterotrophic biomass in a wastewater moving bed membrane bioreactor treatment plant

Influence of hydraulic retention time on heterotrophic biomass in a wastewater moving bed membrane bioreactor treatment plant

Determination of the external mass transfer coefficient and influence of mixing intensity in moving bed biofilm reactors for wastewater treatment

Carbonaceous materials in petrochemical wastewater before and after treatment in an aerated submerged fixed-bed biofilm reactor

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