Mineral Phases and Release Behaviors of As in the Process of Sintering Residues Containing As at High Temperature

Table 4

The As leaching concentration of sintered products for different sintering times.

Sintering time (min)	HVEP (mg/L)	TCLP (mg/L)
0^(1)	0.568	0.751
5	0.482	1.239
10	0.317	0.554
15	0.108	0.194
30	0.086	0.0023
45	0.003	0.0011
60	0.002	0.0017
120	n.d.	0.0009

(1)The specimen was not sintered.