Degradation of Norfloxacin in an Aqueous Solution by the Nanoscale Zero-Valent Iron-Activated Persulfate Process

Table 2

The pH change in the nZVI, PS, and nZVI/PS systems.

System	Initial pH	Final pH
nZVI	7.0	8.3
PS	7.0	6.5
nZVI/PS	3.0	2.5
	4.5	2.7
	7.0	2.8
	9.5	3.1
	11.0	3.6