Articles producció científica> Enginyeria Química

Nitrate removal in an innovative up-flow stirred packed-bed bioreactor

  • Identification data

    Identifier: PC:2935
    Authors:
    GARCÍA MARTÍNEZ, YONHARACHIRINOS, JUDITHBENGOA, CHRISTOPHESTÜBER, FRANKFONT, JOSEPFORTUNY, AGUSTÍFABREGAT, AZAEL
    Abstract:
    http://dx.doi.org/10.1016/j.cep.2017.08.001 http://www.sciencedirect.com/science/article/pii/S0255270116306274
  • Others:

    Author, as appears in the article.: GARCÍA MARTÍNEZ, YONHARA; CHIRINOS, JUDITH; BENGOA, CHRISTOPHE; STÜBER, FRANK; FONT, JOSEP; FORTUNY, AGUSTÍ; FABREGAT, AZAEL
    Department: Enginyeria Química
    URV's Author/s: GARCÍA MARTÍNEZ, YONHARA; CHIRINOS CARDENAS, JUDITH ROSANA; BENGOA , CHRISTOPHE JOSÉ; STÜBER , FRANK ERICH; FONT CAPAFONS, JOSÉ; FORTUNY, AGUSTÍ; FABREGAT LLANGOSTERA, AZAEL
    Keywords: Tractament anaeròbic Carbó biològicament activat Eliminació de nitrats Tratamiento anaerobio carbón biológicamente activado Eliminación de nitratos Anaerobic treatment Biological Activated Carbon Nitrate removal
    Abstract: The anaerobic removal of nitrates was studied in a continuous up-flow stirred packed-bed reactor (USPBR) containing biological sludge carbonaceous material (BSCM). The carbonaceous material (CM), obtained from exhausted sludge, was used as support to grow the biofilm and solid electron mediator for nitrate reduction in the bioreactor. In a continuous USPBR-BSCM system feed with treated synthetic wastewaters, nitrate removal efficiency was 99% at very short space times (τ) 2 min/hydraulic residence times (HRT) 6 min. By comparing these results with the hydraulic residence times applied in other classical denitrification technologies, it seems that USPBR-BSCM requires the shortest times to achieve almost complete nitrate removal. In addition, a high denitrification rate of 3.67 · 10−3 mmol (NO3−)/min/g was observed in the SPBR-BSCM, whilst in the USPBR-biological activated carbon (BAC) it was 2.04 · 10−3 mmol (NO3−)/min/g. The kinetic analysis of the systems showed a good fit with the Michaelis–Menten model and the kinetic parameters estimated were k1 = 3.37 mmol/L/min, k2 = 0.58 mmol/L for USPBR-BSCM and k1 = 2.50 mmol/L/min, k2 = 0.27 mmol/L for USPBR-BAC. Results indicate that SCM is a potentially low cost catalyst and effectively competes with commercial ones; USPBR-BSCM is an inexpensive and advantageous process for nitrate removal and also an effective system for denitrification.
    Research group: Process Intensification, Simulation and Environmental Technology (PISET)
    Thematic Areas: Enginyeria química Ingeniería química Chemical engineering
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0255-2701
    Author identifier: ; ; 0000-0001-9160-5010; 0000-0001-9424-1400; 0000-0002-4007-7905; 0000-0002-2350-8654; 0000-0002-5525-5401
    Record's date: 2017-11-06
    Last page: 64
    Journal volume: 121
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: http://www.sciencedirect.com/science/article/pii/S0255270116306274
    Funding program: plan; CTM2011-23069 altres; 2014PFR-URV-B2-35
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1016/j.cep.2017.08.001
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2017
    First page: 57
    Publication Type: Article Artículo Article
  • Keywords:

    Nitrats--Reciclatge
    Carbó activat
    Tractament anaeròbic
    Carbó biològicament activat
    Eliminació de nitrats
    Tratamiento anaerobio
    carbón biológicamente activado
    Eliminación de nitratos
    Anaerobic treatment
    Biological Activated Carbon
    Nitrate removal
    Enginyeria química
    Ingeniería química
    Chemical engineering
    0255-2701
  • Documents:

  • Cerca a google

    Search to google scholar