Removal of 17β-Estradiol (E2) from Aqueous Solutions Using Potassium Permanganate Combined with Ultraviolet (KMnO₄/UV)

Table 4

Degradation kinetic parameters of E2 in presence of PAC for optimum pH.

Steroid estrogen	Salt	pH	Reaction order	Kinetic equation	Reaction rate constant (K)	R^2	Half-life (min)
E2	PAC	4	Zero	y = −0.0055x + 0.6638	0.0055 (mg.L/min)	0.6	91
			First	y = 0.014x + 0.5162	0.014 (1/min)	0.76	49.5
			Second	y = 0.0459x + 1.7828	0.0459 (L/mg.min)	0.85	22