The textile industry releases highly polluted and complex wastewaters, which are difficult to treat and require numerous treatment steps. Innovative technologies for on-site treatment at each factory would permit cost reduction. For this reason, we ran a laboratory-scale study to assess the suitability of a sequencing batch biofilter granular reactor (SBBGR) for textile wastewater treatment, testing four different types of wastewater. Results demonstrate that wastewater characteristics greatly affect the reactor efficiency. Hence, a pre-study is advisable to define the best operational conditions and the maximum treatment capability for the wastewater under analysis. Nevertheless, SBBGR is a valuable biological treatment, effective in the reduction of pollutant load with stable performances despite the variability in wastewater composition. Tests with ozone integration have demonstrated that it is possible to dose small quantities of ozone to obtain an effluent suitable for direct discharge. However, a dynamic ozone dosage should be used to optimize the process as the correct ozone dose strongly depends on the wastewater composition.
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Research Article|
October 01 2012
Is a sequencing batch biofilter granular reactor suitable for textile wastewater treatment?
A. M. Lotito;
1Department of Water Engineering and Chemistry, Politecnico di Bari, via Orabona 4, 70125 Bari, Italy E-mail: adriana.lotito@libero.it
E-mail: adriana.lotito@libero.it
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U. Fratino;
U. Fratino
1Department of Water Engineering and Chemistry, Politecnico di Bari, via Orabona 4, 70125 Bari, Italy E-mail: adriana.lotito@libero.it
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A. Mancini;
A. Mancini
2Water Research Institute – National Research Council (CNR-IRSA), viale De Blasio, 5, 70132 Bari, Italy E-mail: claudio.diiaconi@ba.irsa.cnr.it
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G. Bergna;
G. Bergna
3CIDA s.p.a., via Laghetto 1, 22073 Fino Mornasco (CO), Italy
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C. Di Iaconi
C. Di Iaconi
2Water Research Institute – National Research Council (CNR-IRSA), viale De Blasio, 5, 70132 Bari, Italy E-mail: claudio.diiaconi@ba.irsa.cnr.it
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Water Sci Technol (2012) 66 (7): 1392–1398.
Article history
Received:
February 16 2012
Accepted:
April 26 2012
Citation
A. M. Lotito, U. Fratino, A. Mancini, G. Bergna, C. Di Iaconi; Is a sequencing batch biofilter granular reactor suitable for textile wastewater treatment?. Water Sci Technol 1 October 2012; 66 (7): 1392–1398. doi: https://doi.org/10.2166/wst.2012.312
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