Degradation Effect of Sulfa Antibiotics by Potassium Ferrate Combined with Ultrasound (Fe(VI)-US)

Table 3

Effect of Fe³⁺ on ultrasonic degradation of sulfa antibiotics.

Substance name	pH	Ultrasound		Fe^3+-Ultrasound
		k/L·mmol^−1·min^−1		Fe^3+ dosage/mmol·L^−1	k/L·mmol^−1·min^−1
Sulfadiazine	7	5.6666	0.9992	0.05	6.2572	0.9954
	8	6.9630	0.9922	0.05	7.6543	0.9882
	9	8.2422	0.9906	0.05	9.7026	0.9623
Sulfamerazine	7	7.8615	0.9961	0.05	9.3386	0.9810
	8	8.2518	0.9913	0.05	10.371	0.9744
	9	9.9267	0.9874	0.05	11.886	0.9628
Sulfamethoxazole	7	6.7640	0.9930	0.05	7.1840	0.9899
	8	7.8218	0.9901	0.05	8.4047	0.9801
	9	9.8719	0.9910	0.05	12.358	0.9817
	7	6.7640	0.9930	0.10	7.3010	0.9819
	8	7.8218	0.9901	0.10	9.0281	0.9814
	9	9.8719	0.9910	0.10	14.884	0.9647
	7	6.7640	0.9930	0.20	7.2641	0.9922
	8	7.8218	0.9901	0.20	8.4559	0.9781
	9	9.8719	0.9910	0.20	13.590	0.9822