Measurement of Membrane Characteristics Using the Phenomenological Equation and the Overall Mass Transport Equation in Ion-Exchange Membrane Electrodialysis of Saline Water

Table 2

Overall membrane pair characteristics.

(a) Electrodialysis 1.

Ion-exchange membrane	Temp. °C	𝜆×10^6 eq/C	𝜇×10^6cm/s	𝜙×10^3cm/𝐶	𝜌×10^2cm^4/eq s
Aciplex K172/A172	25	9.724	1.434	1.403	1.218
	35	9.736	1.289	1.370	1.626
	50	9.972	4.515	1.542	1.996
	60	9.692	2.123	1.405	2.765
Selemion CMR/ASR	25	9.389	1.482	1.409	1.116
	35	9.422	2.421	1.501	1.377
	50	9.475	3.614	1.563	1.937
	60	9.583	5.103	1.621	2.380
Neosepta CIMS/ACS3	25	9.349	−1.055	1.004	1.254
	35	9.373	−1.679	1.067	1.538
	50	9.459	−1.239	1.067	1.835
	60	9.547	−0.561	1.405	2.059

(b) Electrodialysis 2.

Ion-exchange membrane	Conc. eq/dm^3	𝜆×10^6eq/𝐶	𝜇×10^6cm/s	𝜙 ×10^3cm^3/𝐶	𝜌×10^2 cm^4 /eq s
Aciplex CK2/CA3	0.294	9.482	6.028	1.699	1.226
	0.576	9.407	8.570	1.619	1.234
	1.131	8.970	6.977	1.514	1.280
	1.920	8.953	9.690	1.367	1.387
Selemion CMV2/AST	0.294	9.055	−1.443	1.294	5.945
	0.577	9.371	−0.731	1.316	5.787
	1.131	9.389	−0.424	1.296	5.893
	1.921	9.139	0.850	1.193	6.371
Neosepta CL25T/AVS4T	0.294	9.584	1.458	1.513	6.354
	0.577	9.633	3.208	1.394	6.788
	1.132	9.228	0.908	1.304	7.566
	1.920	9.269	3.575	1.254	7.691