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Table 1

Other methods and results for liquid crystal wastewater

MethodsOperating conditionsResults
Adsorption (Ligaray et al. 2018) COD = 1,348 mg L–1, pH = 4, HRT = 20.3 h, T = 30 °C COD removal = 73.3% 
E-Fenton (Colades et al. 2015) COD = 6,481 mg L–1, [Fe2+] = 5.125 mM, [H2O2] = 325 mM, current = 1.5 A, pH = 1.95 COD removal = 79% 
MBR (Wu et al. 2013) COD = 150 mg L–1, F/M ratio <0.4, pH = 7, DO >3 mg L–1, T = 27 ± 2 °C COD removal = 86%, nitrogen removal = 84% 
Fluidized-bed Fenton (Su et al. 2013) [Fe2+] = 3 mM, [H2O2] = 50 mM, pH = 3 MEA removal = 76% 
Zero-valent iron reduction (Lee et al. 2009) BOD/COD = 0.5, SS = 4,000 mg L–1, iodine = 30 mg L–1, HRT = 30 d, pH = 6.3, T = 30 °C COD removal >90%, SS = 350 mg L–1 
MethodsOperating conditionsResults
Adsorption (Ligaray et al. 2018) COD = 1,348 mg L–1, pH = 4, HRT = 20.3 h, T = 30 °C COD removal = 73.3% 
E-Fenton (Colades et al. 2015) COD = 6,481 mg L–1, [Fe2+] = 5.125 mM, [H2O2] = 325 mM, current = 1.5 A, pH = 1.95 COD removal = 79% 
MBR (Wu et al. 2013) COD = 150 mg L–1, F/M ratio <0.4, pH = 7, DO >3 mg L–1, T = 27 ± 2 °C COD removal = 86%, nitrogen removal = 84% 
Fluidized-bed Fenton (Su et al. 2013) [Fe2+] = 3 mM, [H2O2] = 50 mM, pH = 3 MEA removal = 76% 
Zero-valent iron reduction (Lee et al. 2009) BOD/COD = 0.5, SS = 4,000 mg L–1, iodine = 30 mg L–1, HRT = 30 d, pH = 6.3, T = 30 °C COD removal >90%, SS = 350 mg L–1 
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