The concentrations of TOC, SO₄²⁻, and NO₃⁻ anions at 90 min and the mineralization extents of C, S and N elements of DDC by the O₃, VUV and O₃/VUV, respectively.

Process	Concentration (mg L−1)			Mineralization extent (%)
	TOC	SO42−	NO3−	C	S	N
O3	54.91	18.66	6.82	18.85	16.91	18.81
VUV	51.67	60.42	9.07	24.45	57.69	25.02
O3/VUV	45.21	69.18	28.92	32.36	62.69	79.76