1. S. Sekar, M. Surianarayanan, V. Ranganathan, D.R. MacFarlane, A.B. Mandal, Choline-based ionic liquids-enhanced biodegradation of azo dyes, Environ. Sci. Technol., 46 (2012) 4902–4908.
  2. N.K. Daud, B.H. Hameed, Decolorization of Acid Red 1 by Fenton-like process using rice husk ash-based catalyst, J. Hazard. Mater., 176 (2010) 938–944.
  3. L.A.V. Luna, T.H.G. da Silva, R.F.P. Nogueira, F. Kummrow, G.A. Umbuzeiro, Aquatic toxicity of dyes before and after photo-Fenton treatment, J. Hazard. Mater., 276 (2014) 332–338.
  4. K. Li, C. Dong, Y. Zhang, H. Wei, F. Zhao, Q. Wang, Ag–AgBr/CaWO4 composite microsphere as an efficient photocatalyst for degradation of Acid Red 18 under visible light irradiation: affecting factors, kinetics and mechanism, J. Mol. Catal. A-Chem., 394 (2014) 105–113.
  5. D.I. Jang, Y.J. Hyun, H. Park, Y.S. Moka, Plasma–photocatalytic degradation of dyeing wastewater: comparison of titanium oxide, zinc oxide, and graphene oxide, Color. Technol., 130 (2014) 120–126.
  6. Z. Wang, Y. Wang, M. Vivar, M. Fuentes, L. Zhu, L. Qin, Photovoltaic and photocatalytic performance study of SOLWAT system for the degradation of Methylene Blue, Acid Red 26 and 4-chlorophenol, Applied Energy, 120 (2014) 1–10.
  7. F. Sheng, X. Zhu, W. Wang, H. Bai, J. Liu, P. Wang, R. Zhang, L. Han, J. Mu, Synthesis of novel polyoxometalate K6ZrW11O39Sn•12H2O and photocatalytic degradation of aqueous azo dye solutions with solar irradiation, J. Mol. Catal. A-Chem., 393 (2014) 232–239.
  8. P. Srivastava, S. Goyal, P.K. Patnala, Degradation of reactive, acid and basic textile dyes in the presence of ultrasound and rare earths (Lanthanum and Praseodymium), Ultrason. Sonochem., 21 (2014) 1994–2009.
  9. A. Khataee, A. Karimi, S. Arefi-Oskoui, R.D.C. Soltani, Y. Hanifehpour, B. Soltani, S.W. Joo, Sonochemical synthesis of Pr-doped ZnO nanoparticles for sonocatalytic degradation of Acid Red 17, Ultrason. Sonochem., 22 (2015) 371–378.
  10. C.A. Martinez-Huitle, E. Brillas, Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods: a general review, Appl. Catal. B: Environ., 87 (2009) 105–145.
  11. L. Yue, K. Wang, J. Guo, J. Yang, X. Luo, J. Lian, L. Wang, Enhanced electrochemical oxidation of dye wastewater with Fe2O3 supported catalyst, J. Ind. Eng. Chem., 20 (2014) 725–731.
  12. J. Basiri Parsa, M. Golmirzaei, M. Abbasi, Degradation of azo dye C.I. Acid Red 18 in aqueous solution by ozone-electrolysis process, J. Ind. Eng. Chem., 20 (2014) 689–694.
  13. X. Florenza, A.M.S. Solano, F. Centellas, C.A. Martínez-Huitle, E. Brillas, S. Garcia-Segura, Degradation of the azo dye Acid Red 1 by anodic oxidation and indirect electrochemical processes based on Fenton’s reaction chemistry: relationship between decolorization, mineralization and products, Electrochim. Acta, 142 (2014) 276–288.
  14. M.M. Haque, W.T. Smith, D.K.Y. Wong, Conducting polypyrrole films as a potential tool for electrochemical treatment of azo dyes in textile wastewaters, J. Hazard Mater., 283 (2015) 164–170.
  15. E. Castro, A. Avellaneda, P. Marco, Combination of advanced oxidation processes and biological treatment for removal of benzidine-derived dyes, Environ. Prog. Sustain. Energy, 33 (2014) 873–885.
  16. S. Thomas, R. Sreekanth, V.A. Sijumon, U.K. Aravind, C.T. Aravindakumar, Oxidative degradation of Acid Red 1 in aqueous medium, Chem. Eng. J., 244 (2014) 473–482.
  17. I-S. Ng, T. Chen, R. Lin, X. Zhang, C. Ni, D. Sun, Decolorization of textile azo dye and Congo red by an isolated strain of the dissimilatory manganese-reducing bacterium Shewanella xiamenensis BC01, Appl. Microbiol. Biotechnol., 98 (2014) 2297–2308.
  18. S.S. Prasad, K. Aikat, Study of bio-degradation and bio-decolourization of azo dye by Enterobacter sp. SXCR, Environ. Tech., 35 (2014) 956–965.
  19. N. Misra, V. Kumar, N.K. Goel, L. Varshney, Laccase immobilization on radiation synthesized epoxy functionalized polyethersulfone beads and their application for degradation of acid dye, Polymer, 55 (2014) 6017–6024.
  20. J. Dasgupta, J. Sikder, S. Chakraborty, S. Curcio, E. Drioli, Remediation of textile effluents by membrane based treatment techniques: a state of the art review, J. Environ. Manag., 147 (2015) 55–72.
  21. D. Kalderis, S.B. Hawthorne, A.A. Clifford, E. Gidarakos, Interaction of soil, water and TNT during degradation of TNT on contaminated soil using subcritical water, J. Hazard. Mater., 159 (2008) 329–334.
  22. V. Daskalaki, E.S. Timotheatou, A. Katsaounis, D. Kalderis, Degradation of Reactive Red 120 using hydrogen peroxide in subcritical water, Desalination, 274 (2011) 200–205.
  23. S. Daneshvar, N. Hidemi, F. Salak, N. Mahinpey, Degradation of textile dyes under subcritical water conditions in the presence of hydrogen peroxide, Can. J. Chem. Eng., 92 (2014) 615–622.
  24. A. Yuksel, Hydrothermal degradation of Congo Red in hot compressed water and its kinetics, Chem. Eng. Proc. Tech., 4 (2013) 179–188.
  25. A. Yuksel, M. Sasaki, M. Goto, Complete degradation of Orange G by electrolysis in sub-critical water, J. Hazard. Mater., 190 (2011) 1058–1062.
  26. J. Donlagić, J. Levec, Oxidation of an azo dye in subcritical aqueous conditions, Ind. Eng. Chem. Res., 36 (1997) 3480–3486.
  27. S.D. Hosseini, F.S. Asghari, H. Yoshida, Decomposition and decoloration of synthetic dyes using hot/liquid (subcritical) water, Water Res., 44 (2010) 1900–1908.
  28. S.D. Hosseini, F.S. Asghari, H. Yoshida, Decomposition and Decoloration of Acid Orange 7 Using Sub-Critical Water Method, Proc. World Congress on Engineering and Computer Science 2009 Vol. I, WCECS 2009, October 20–22, 2009, San Francisco, USA.
  29. B. Kayan, B. Gözmen, Degradation of Acid Red 274 using H2O2 in subcritical water: application of response surface methodology, J. Hazard. Mater., 201–202 (2012) 100–106.
  30. M. Demirel, B. Kayan, Application of response surface methodology and central composite design for the optimization of textile dye degradation by wet air oxidation, Int. J. Ind. Chem., 3 (2012) 24–34.
  31. B.K. Körbahti, M.A. Rauf, Application of response surface analysis to the photolytic degradation of Basic Red 2 dye, Chem. Eng. J., 138 (2008) 166–171.
  32. B.K. Körbahti, Optimization of electrochemical oxidation of textile dye wastewater using response surface methodology (RSM), Environmental Earth Sciences Special Issue: Survival and Sustainability (2011) 1181–1191.
  33. D. De Jager, M.S. Sheldon, W. Edwards, Colour removal from textile wastewater using a pilot-scale dual-stage MBR and subsequent RO system, Sep. Purif. Tech., 135 (2014) 135–144.
  34. C. O’Neill, F.R. Hawkes, D.L. Hawkes, N.D. Lourenco, H.M. Pinheiro, W. Delee, Color in textile effluents sources, measurement, discharge consents and simulation: a review, J. Chem. Technol. Biotech., 74 (1999) 1009–1018.
  35. A. Gottlieb, C. Shaw, A. Smith, A. Wheatley, S. Forsythe, The toxicity of textile reactive azo dyes after hydrolysis and decolourisation, J. Biotech., 101 (2003) 49–56.
  36. Design Expert Software version 9.0.4 User’s Guide 2010 Stat-Ease, Inc.
  37. K. Balan, P. Sathisshkumar, T. Palvannan, Decolorization of malachite green by laccase: optimization by response surface methodology, J. Taiwan Inst. Chem. Eng., 43 (2012) 776–782.
  38. D.C. Montgomery, Design and Analysis of Experiments, Wiley, New Jersey, 1996.
  39. R.H. Myers, D.C. Montgomery, Response Surface Methodology: Process and Product Optimization Using Designed Experiments, Wiley, New Jersey, 2002.
  40. M. Edrissi, N.R. Asi, B. Madjidi, Interaction of mefanamic acid with cobalt (II) ions in aqueous media: evaluation via classic and response surface methods, Turk. J. Chem., 32 (2008) 505–519.
  41. L.S. Badwaik, K. Prasad, S.C. Deka, Optimization of extraction conditions by response surface methodology for preparing defatted peanut, Int. Food Res. J., 19 (2012) 341–346.
  42. S. Hammami, N. Oturan, N. Bellakhal, M. Dachraoui, M.A. Oturan, Oxidative degradation of direct Orange 61 by electro- Fenton process using a carbon felt electrode: application of the experimental design methodology, J. Electroanal. Chem., 610 (2007) 75–84.
  43. M.A. Behnajady, N. Modirshahla, Evaluation of electrical energy per order (E(EO)) with kinetic modeling photooxidative degradation of C.I. Acid Orange 7 in a tubular continuous- flow photoreactor, Ind. Eng. Chem. Res., 45 (2006) 553–557.
  44. M.B. Kasiri, A.R. Khataee, Photo-oxidative decolorization of two organic dyes with different chemical structure by UV/H2O2 process: experimental design, Desalination, 270 (2011) 151–159.
  45. E. Brillas, I. Sirés, M.A. Oturan, Electro-Fenton process and related electrochemical technologies based on Fenton’s reaction chemistry, Chem. Rev., 109 (2009) 6570–6631.
  46. M. Punzi, F Nilsson, A. Anbalagan, B.-M. Svensson, K. Jonsson, B. Matiasson, M. Jonstrup, Combined anaerobic–ozonation process for treatment of textile wastewater: removal of acute toxicity and mutagenicity, J. Hazard. Mater., 292 (2015) 52–60.
  47. D. Georgiou, P. Melidis, A. Aivasidis, K. Gimouhopoulos, Degradation of azoreactive dyes by ultraviolet radiation in the presence of hydrogen peroxide, Dyes Pigments, 52 (2002) 69–78.
  48. M. Joshi, R. Bansal, R. Purwar, Colour removal from textile effluents: review article, Ind. J. Fibre Text. Res., 29 (2004) 239–259.
  49. K. Malachova, Z. Rybkova, H. Sezimova, J. Cerven, C. Novotny, Biodegradation and detoxification potential of rotating biological contactor (RBC) with Irpex lacteus for remediation of dye-containing wastewater, Water Res., 47 (2013) 7143–7148.
  50. N.K. Daud, B.H. Hameed, Acid Red 1 dye decolorization by heterogeneous Fenton-like reaction using Fe/kaolin catalyst, Desalination, 269 (2011) 291–293.
  51. N.K. Daud, M.A. Ahmad, B.H. Hameed, Decolorization of Acid Red 1 dye solution by Fenton-like process using Fe–Montmorillonite K10 catalyst, Chem. Eng. J., 165 (2010) 111–116.
  52. U.G. Akpan, B.H. Hameed, Solar degradation of an azo Acid Red 1, by Ca–Ce–W–TiO2 composite catalyst, Chem. Eng. J., 169 (2011) 91–99.
  53. H. Hassan, B.H. Hameed, Oxidative decolorization of Acid Red 1 solutions by Fe–zeolite Y type catalyst, Desalination, 276 (2011) 45–52.
  54. M. Nikazar, K. Gholivand, K. Mahanpoor, Photocatalytic degradation of azo dye Acid Red 114 in water with TiO2 supported on clinoptilolite as a catalyst, Desalination, 219 (2008) 293–300.