Applications of electrodialysis for acid pickling wastewater treatment

Paquay, Emmanuelle; Clarinval, Anne-Marie; Delvaux, Anne; Debouverie, Marc; Hurwitz, H.

doi:10.1016/s1385-8947(00)00208-4

Cited by 72 publications

(29 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…4 In galvanic industry, electrodialysis can be used for regenerating the metal finishing baths and wastewater treatment. 3,5 It is of particular interest to recycle the rinse water as a diluate and the metal ions as a concentrated brine, which can be used to recompose the plating bath. However, technical problems with the process need to be completely understood.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the electrodialysis process for the treatment of metal finishing wastewater

Costa¹,

Klein²,

Bernardes³

et al. 2002

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

Neste trabalho estudou-se o tratamento, por eletrodiálise, de um efluente alcalino, oriundo de um processo de galvanoplastia, contendo íons de Zn, Ni, Cu, Fe e Al, bem como de Na e CN -. O estudo foi feito tanto em células de bancada quanto em uma planta piloto, utilizando-se membranas íon-seletivas Nafion e Selemion. Os resultados mostraram que os íons metálicos apresentam, em sua maioria, caráter aniônico devido à formação de complexos de coordenação. Cada tipo de íon metálico apresentou uma diferente taxa de extração da solução tratada, dependendo do controle do processo ser potenciostático ou galvanostático. Para Zn, Ni e Cu houve maior extração sob controle galvanostático. Já para o Al foi verificado uma maior remoção do efluente quando o controle era potenciostático. Observou-se um comportamento anômalo para os íons ferro, os quais não são removidos do mesmo modo que os demais íons metálicos. O rendimento da extração foi máximo em tempos de ensaio relativamente baixos (2-3 h).Metal finishing wastewater containing ions of Zn, Ni, Cu, Fe and Al, as well as of Na and CN -in alkaline pH was treated by electrodialysis. The treatment was conducted in a laboratory cell and in a pilot plant unity. The experiments were carried out using Nafion and Selemion membranes. Results showed most of the metallic ions to have an anionic nature, due to the formation of coordination complexes. Each metallic ion showed a different rate of extraction from the treated solution, depending on the galvanostatic or potentiostatic operation mode. Zn, Ni and Cu have shown higher extraction under galvanostatic control. For Al, higher extraction was observed when the experiment was conducted in a potentiostatic mode. Fe ions exhibited an unexpected behavior, not being removed in the same way as the other ions. The best extraction results were obtained within 2-3 h of treatment.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of the electrodialysis process for the treatment of metal finishing wastewater

Costa¹,

Klein²,

Bernardes³

et al. 2002

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…Electrodialysis of spent pickling solutions is an effective way of acid recovery and wastewater purification 12,13 . This method enables not only the separation of acid but also its concentration, high enough to recycle the acid to the pickling bath.…”

Section: Regeneration Methods With Hcl Recoverymentioning

confidence: 99%

“…De-acidified water can be used as rinsing water in the hot dip galvanizing process. An application of electrodialysis in a continuous work, as a part of industrial process to treat solutions containing HCl or H 2 SO 4 , Fe and Zn ions, is proposed and investigated by Paquay et al 12 . However, the problem of the undesired by-product formation (e.g.…”

Section: Regeneration Methods With Hcl Recoverymentioning

confidence: 99%

Methods of regeneration of spent pickling solutions from steel treatment plants

Regel‐Rosocka

Cieszyńska

Wiśniewski

2007

Polish Journal of Chemical Technology

View full text Add to dashboard Cite

Facing the still growing demand for metals, particularly for zinc, the recovery of metals from secondary sources should be considered. Spent pickling solutions can be the source of valuable products such as hydrochloric acid, zinc or iron salts or even metallic zinc. The selection of an efficient, selective and economical method for the regeneration of such solutions is a key issue for hot dip galvanizing plants, especially in reference to strict environmental protection regulations.

show abstract

“…E. Paquay, etc. [10]simulated the electroplating acid pickling wastewater treatment in electrodialysis in the laboratory, screened for a variety of anion and cation exchange membrane, and to quantify the relation between hydrodynamic condition of electrodialysis pool and the limited current density by using tracer technique.…”

Section: Electrodialysismentioning

confidence: 99%

A Review on Spent Pickling Liquors Treatment

Liu¹,

Qi²,

Liu³

2017

dteees

View full text Add to dashboard Cite

Abstract. Spent pickling liquors is a hazardous waste because it is acidic and contains a large quantity of metal ions. It will cause severe environmental pollution and waste of resource if not properly treated. The traditional neutralization method will cause secondary pollutant. In this review, the latest development and research of spent pickling liquors treatment have been summarized, mainly including high temperature roasting, evaporation, ferric salt crystallization, ion exchange, membrane, chemical transformation, and electrolytic method. In the end of this review, there is outlook of spent pickling liquors treatment. It pointed out that the optimized way is to take the waste picking liquors as resource and combine the comprehensive utilization with the environment protection.

show abstract

Applications of electrodialysis for acid pickling wastewater treatment

Cited by 72 publications

References 15 publications

Evaluation of the electrodialysis process for the treatment of metal finishing wastewater

Evaluation of the electrodialysis process for the treatment of metal finishing wastewater

Methods of regeneration of spent pickling solutions from steel treatment plants

A Review on Spent Pickling Liquors Treatment

Contact Info

Product

Resources

About