An innovative hybrid technology for both minimizing the waste production and optimizing the pickling process through the continuous control of pickling baths composition has been proposed by means of a pilot-plant installed at the Tecnozinco Srl, Carini (PA) hot-dip galvanizing plant. The recovery process has been accomplished by coupling a diffusion dialysis (DD), where HCl is recovered, a membrane distillation (MD), where HCl is concentrated, and a reactive precipitation (RP), where metal ions are recovered as iron hydroxide and ammonium/zinc chloride solution, to be used in the fluxing baths of the plant. The pilot plant was commissioned and operated using synthetic HCl solutions first and, then, real pickling liquors. Results of the long-time automatic mode operations have proven the operational stability and performance of the demonstrator. A high acid recovery of 80% and iron hydroxide with 99% of purity were achieved.

Gueccia, R., Winter, D., Randazzo, S., Cipollina, A., Koschikowski, J., Micale, G. (2021). Design, construction and operational results of a pilot plant for the treatment and valorization of pickling waste solutions. In ATTI DEL 38° CONVEGNO NAZIONALE AIM.

Design, construction and operational results of a pilot plant for the treatment and valorization of pickling waste solutions

Gueccia, R.;Randazzo, S.;Cipollina, A.;Micale, G.
2021-01-01

Abstract

An innovative hybrid technology for both minimizing the waste production and optimizing the pickling process through the continuous control of pickling baths composition has been proposed by means of a pilot-plant installed at the Tecnozinco Srl, Carini (PA) hot-dip galvanizing plant. The recovery process has been accomplished by coupling a diffusion dialysis (DD), where HCl is recovered, a membrane distillation (MD), where HCl is concentrated, and a reactive precipitation (RP), where metal ions are recovered as iron hydroxide and ammonium/zinc chloride solution, to be used in the fluxing baths of the plant. The pilot plant was commissioned and operated using synthetic HCl solutions first and, then, real pickling liquors. Results of the long-time automatic mode operations have proven the operational stability and performance of the demonstrator. A high acid recovery of 80% and iron hydroxide with 99% of purity were achieved.
2021
9788898990214
Gueccia, R., Winter, D., Randazzo, S., Cipollina, A., Koschikowski, J., Micale, G. (2021). Design, construction and operational results of a pilot plant for the treatment and valorization of pickling waste solutions. In ATTI DEL 38° CONVEGNO NAZIONALE AIM.
File in questo prodotto:
File Dimensione Formato  
Memoria 38_101_UNIPA_Randazzo Serena.pdf

accesso aperto

Descrizione: ARTICOLO PRINCIPALE
Tipologia: Versione Editoriale
Dimensione 416.48 kB
Formato Adobe PDF
416.48 kB Adobe PDF Visualizza/Apri
INDICE.pdf

Solo gestori archvio

Descrizione: INDICE
Tipologia: Altro materiale (es. dati della ricerca)
Dimensione 424.87 kB
Formato Adobe PDF
424.87 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
COPERTINA.pdf

Solo gestori archvio

Tipologia: Altro materiale (es. dati della ricerca)
Dimensione 584.57 kB
Formato Adobe PDF
584.57 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
addendum_firmato.pdf

Solo gestori archvio

Tipologia: Contratto con l'editore (ATTENZIONE: NON TRASFERIRE A SITO DOCENTE)
Dimensione 285.33 kB
Formato Adobe PDF
285.33 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/474872
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact