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Combining electrochemistry and UV for the simultaneous wastewater decolorization and reduction of salinity

Institut d’Investigació Tèxtil i Cooperació Industrial de Terrassa (INTEXTER), Universitat Politècnica de Catalunya-BarcelonaTech (UPC). Carrer Colom 15, 08222, Terrassa, Spain.

Textile dyeing processes with reactive dyes consume high amount of water and generate wastewater containing residual dyes and salts. In this work, wastewater generated by a textile industry was treated by means of electrochemical techniques combined with ultraviolet irradiation. Five industrial wastewaters were collected in a textile mill and were treated at 10 A in an electrochemical cell. Full color removal was obtained after 10 minutes of treatment. The optimization of the electrochemical treatment was performed in order to select the most suitable conditions. Subsequently the decolorized effluents, which still contain salts, were irradiated with UV light to remove residual oxidants and were reconstituted for its reuse. This procedure enabled to reuse 70% water and 64% salt in the dyeing process. The chromatic coordinates of these dyed samples were evaluated with respect to reference ones. In all cases, samples dyed with the reused effluents showed colour differences into acceptance limit of the textile industry (DECMC(2:1) values lower than 1).
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Keywords industrial textile wastewater; reactive dye effluents; effluent reuse; salt reuse; dyeing process; electrochemical treatment; UV irradiation

Citation: Carmen Gutiérrez-Bouzán, Valentina Buscio. Combining electrochemistry and UV for the simultaneous wastewater decolorization and reduction of salinity. AIMS Environmental Science, 2018, 5(2): 96-104. doi: 10.3934/environsci.2018.2.96

References

  • 1. Vajnhandl S, Valh JV (2014) The status of water reuse in European textile sector. J Environ Manage 141C: 29–35.    
  • 2. Hassanzadeh E, Farhadian M, Razmjou A, et al. (2017) An efficient wastewater treatment approach for a real woolen textile industry using a chemical assisted NF membrane process. Environ Nanotech Monit Manag 8: 92–96.
  • 3. Verma AK (2017) Treatment of textile wastewaters by electrocoagulation employing Fe-Al composite electrode. J Water Process Eng 20: 168–172.    
  • 4. Bonakdarpour B, Vyrides I, Stuckey DC (2011) Comparison of the performance of one stage and two stage sequential anaerobic–aerobic biological processes for the treatment of reactive-azo-dye-containing synthetic wastewaters. Int Biodeter Biodegr 65: 591–599.    
  • 5. Vyrides I, Bonakdarpour B, Stuckey DC (2014) Salinity effects on biodegradation of Reactive Black 5 for one stage and two stages sequential anaerobic aerobic biological processes employing different anaerobic sludge. Int Biodeter Biodegr 95: 294–300.
  • 6. Lotito AM, De Sanctis M, Di Iaconi C, et al. (2014) Textile wastewater treatment: Aerobic granular sludge vs activated sludge systems. Water Res 54: 337–346.    
  • 7. Riera-Torres M, Gutiérrez-Bouzán C, Crespi M (2010) Combination of coagulation-flocculation and nanofiltration techniques for dye removal and water reuse in textile effluents. Desalination 252: 53–59.    
  • 8. Liang CZ, Sun SP, Li FY, et al. (2014) Treatment of highly concentrated wastewater containing multiple synthetic dyes by a combined process of coagulation/flocculation and nanofiltration. J Memb Sci 469: 306–315.    
  • 9. Blanco J, Torrades F, Morón M, et al. (2014) Photo-Fenton and sequencing batch reactor coupled to photo-Fenton processes for textile wastewater reclamation: Feasibility of reuse in dyeing processes. Chem Eng J 240: 469–475.    
  • 10. Buscio V, Brosillon S, Mendret J, et al. (2015) Photocatalytic Membrane Reactor for the Removal of C.I. Disperse Red 73. Materials 8: 3633–3647.    
  • 11. Garcia-Segura S, Ocon JD, Chong MN (2018) Electrochemical oxidation remediation of real wastewater effluents-A review. Process Saf Environ 113: 48–67.    
  • 12. Orts F, del Río AI, Molina J, et al. (2018) Electrochemical treatment of real textile wastewater: Trichromy Procion HEXL®. J Electroanal Chem 808: 387–394.    
  • 13. Nallathambi A, Giri Rengaswami Dev V (2017) Industrial scale salt-free reactive dyeing of cationized cotton fabric with different reactive dye chemistry. Carbohydr Polym 174: 137–145.    
  • 14. Sala M, López-Grimau VV, Gutiérrez-Bouzán C (2014) Photo-Electrochemical Treatment of Reactive Dyes in Wastewater and Reuse of the Effluent: Method Optimization. Materials 7: 7349–7365.    
  • 15. Buscio V, García-Jiménez M, Vilaseca M, et al. (2016) Reuse of Textile Dyeing Effluents Treated with Coupled Nanofiltration and Electrochemical Processes. Materials 9: 490.    
  • 16. Rice EW, Baird RB, Eaton AD, et al., Standard Methods for the Examination of Water and Wastewater, 22nd ed., Washington, 2012.
  • 17. AENOR. UNE-EN ISO105-J03, 2009. Test for colour fastness. Part J03: Calculation of Colour Differences. Spanish Association for the Standardization and Certification, Madrid, Spain (in Spanish).
  • 18. López-Grimau V, Gutiérrez MC (2006) Decolourisation of simulated reactive dyebath effluents by electrochemical oxidation assisted by UV light. Chemosphere 62: 106–112.    
  • 19. del Río AI, Molina J, Bonastre J, et al. (2009) Influence of electrochemical reduction and oxidation processes on the decolourisation and degradation of C.I. Reactive Orange 4 solutions. Chemosphere 75: 1329–1337.    

 

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