Effect of Colloidal Silicate on the Migration Behaviour of Strontium in Groundwater Environment of Geological Disposal Candidate Site

Table 1

Controlled and various factors of experiments.

Various factors	Colloid amounts (ml)	Contact time (min)	pH	Sr(II) initial concentration (mg L^−1)	Solid-to-liquid ratio (g L^−1)
Colloid amounts (ml)	10, 50, 100	1440	6	10	20
Contact time (min)	10	10, 20, 60, 120, 300, 600, 1440, 2880, 4320	6	10	20
pH	10	1440	3, 4, 5, 6, 7, 8, 9, 10	10	20
Sr(II) initial concentration (mg L^−1)	10	1440	6	0.5, 1, 5, 10, 50, 100, 200, 500, 800, 1000	20
Solid-to-liquid (g L^−1)	10	1440	6	10	1 : 1, 2 : 1, 5 : 1, 10 : 1, 20 : 1, 100 : 1