Table 3.

Effect of the Fe(II) to H₂O₂ molar ratio on the residual concentrations of estrogens in cow manure by the Fenton oxidation process. Note: the H₂O₂ dosage was 2.56 mmol/g; the solid to water mass ratio was 2 g/mL; the initial pH value was 3.0; the reaction time was 24 h.

Fe(II) to H2O2 Molar Ratio/(M/M)	The Residual Concentrations of Estrogens in Cow Manure (mg/kg)
	E3	BPA	DES	E2	EE2
0	97.40 ± 3.55	96.54 ± 0.42	100.22 ± 0.35	95.01 ± 1.01	72.49 ± 1.55
0.04	47.63 ± 1.41	1.46 ± 0.29	3.60 ± 0.29	3.42 ± 0.09	26.83 ± 1.59
0.05	32.95 ± 1.46	0.94 ± 0.09	3.21 ± 0.71	3.25 ± 0.42	21.00 ± 0.71
0.067	31.37 ± 3.44	0.67 ± 0.09	2.01 ± 0.37	2.21 ± 0.28	13.81 ± 1.01
0.10	18.89 ± 4.84	0.33 ± 0.01	0.75 ± 0.44	1.72 ± 0.19	11.95 ± 0.31
0.125	16.82 ± 1.32	0.32 ± 0.02	0.48 ± 0.48	0.98 ± 0.40	9.92 ± 1.25