Analysis of the Sedimentation Characteristics of Ultrafine Tailings Based on an Orthogonal Experiment

Table 3

Orthogonal experimental design.

No.	Polyacrylamide (‰)	Polyaluminum chloride (‰)	Polyaluminum sulfate (‰)	Polyferric sulfate (‰)
1	2	0.05	0.5	0.5
2	2	0.1	1	1
3	2	0.15	1.5	1.5
4	3	0.05	1	1.5
5	3	0.1	1.5	0.5
6	3	0.15	0.5	1
7	4	0.05	1.5	1
8	4	0.1	0.5	1.5
9	4	0.15	1	0.5

The dosage is the mass percentage of ultrafine tailings slurry, and the concentration of ultrafine tailings slurry is 30%.