Electrodialysis and Water Reuse: Novel Approaches by Jane Zoppas Ferreira (auth.), Andréa Moura Bernardes, Marco

By Jane Zoppas Ferreira (auth.), Andréa Moura Bernardes, Marco Antônio Siqueira Rodrigues, Jane Zoppas Ferreira (eds.)

This booklet offers novel options to judge electrodialysis tactics, to synthesize ionic membranes and to symbolize their homes. It exhibits the capability use of membrane approach to the therapy of effluents generated in lots of business sectors equivalent to refineries, leather-based industries, mining and electroplating techniques. The publication is predicated at the effects received via the author's examine workforce in past times decade. it's invaluable for college students, researchers and engineers drawn to membrane applied sciences for water reuse.

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Extra resources for Electrodialysis and Water Reuse: Novel Approaches

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1 mol L-1 HCl in contact with a Selemion CMV cation exchange membrane, observed an increase of the potential in the chronopotentiometric curves after the period of stabilization for high current densities, which coincides with the appearance of a precipitate of Cr(OH)3 on the membrane surface. This increased potential can be interpreted as an increase in the membrane resistance due to the formed precipitate. The cause of precipitation can be related to the occurrence of the dissociation of water into Hþ ions and OH-, which leads to an increase in pH at the membrane surface and, consequently, to the precipitation of the metal hydroxide.

2):   V Cjf À Cj0 ð4:2Þ Jjm ¼ A Á t0 where V is the volume of the solution (L), Cfj is the concentration of counter-ions at time t0 (molÁL-1), C0j is the initial concentration of counter-ions (molÁL-1), A is the apparent area of the membrane (cm2), t0 is the time of the experiment (s). Based on the counter-ion transport number, the membrane permselectivity can be obtained according to the relationship in Eq. 3): P¼ tjm À tjs 1 À tjs ð4:3Þ where tsj is the transport number of the counter-ion in solution [23].

Oxford & IBH, New Delhi, pp 25–69 17. Strathmann H (1994) Electrodialytic membrane processes and their practical application. In: Sequeira CAC (ed) Studies in environmental science—environmental oriented electrochemistry, vol 59. Elsevier pp 495–533. 1016/S0166-1116(08)70563-6 18. Strathmann H (1995) Electrodialysis and related processes. In: Noble RD, Stern SA (eds) Membrane separations technology: principles and applications. Elsevier Science, pp 213–281. 1016/S0927-5193(06)80008-2 19. Strathmann H (2004) Ion exchange membrane separation processes, vol 9.

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