Integrated Electrokinetics-Adsorption Remediation of Saline-Sodic Soils: Effects of Voltage Gradient and Contaminant Concentration on Soil Electrical Conductivity

Table 2

Weekly results of electrical conductivity based on Box-Behnken Design.

Run order	Polarity reversal, A	Voltage gradient, B	Concentration, C	Electrical conductivity dS/m
				1st week	2nd week	3rd week
1	24	0.6	60	42.2	74.5	150.1
2	0	0.2	60	48.72	176.7	117.3
3	0	0.6	20	102.6	82.93	105.5
4	48	0.6	20	64.4	191.3	147.7
5	24	0.6	60	37.98	67.05	135.09
6	48	0.2	60	12.85	37.8	94.75
7	24	0.6	60	46.42	81.95	165.11
8	48	1	60	84.9	90.12	221.9
9	24	1	20	138.8	103.2	129.1
10	24	0.2	20	7.14	16.88	51.98
11	24	0.2	100	39.11	36.39	37.3
12	0	1	60	83.78	76.8	193.9
13	0	0.6	100	40.8	48.82	25.64
14	48	0.6	100	55.23	62.77	124.1
15	24	1	100	59.74	86.98	91.93