Review Article

Textile Industry Effluent Treatment Techniques

Table 2

Photocatalytic and other chemical methods for textile effluent dye degradation.

Treatment technologyParametersPollutants (dyes)Degradation efficiencyReferences

Photocatalytic process (MZC and MZG)Contact time = 30 minMethyl blue78% with MZG[47]
Catalyst dose = 1 g/L
pH = 6

Photocatalytic process (NiFe2O4/ZnwO4)Contact time = 70 minRhodamine98%[48]
Catalyst dose = 50 mg

Photocatalytic process (UV/H2O2/ZnO)Zno (dose = 0.6 g/L)Disperse red97%[49]
pH = 9, irradiation time = 60 min and H2O2 = 0.9 ml/L

Photo-fenton process (activated carbon/coFe2O4 (Ac/CFO))Nanocomposite = 0.3 g/LReactive Red 198100%[50]
Contact time = 25 min
PS = 5 mM, irradiation = 30 W and current = 0.32 A

Photo-fenton process (calcined laterite soil)pH = 3, H2O2 = 1 mol/L, catalyst dose = 2 g/L and contact time = 120 minAcid red 1794.71%[51]

OzonationThe ratio of H2O2 to O3 = 1 : 10500Direct red 80The highest COD removal rate was 43%[52]