Abstract
Electrodialysis (ED) is, at present, used mainly for the desalination of brackish drinking-water. Brackish water with a high scaling potential can be successfully treated, using the electrodialysis reversal (EDR) process without the addition of chemicals. The reliability of the ED process makes it very attractive for water treatment. Although used mainly for brackish water desalination, ED also has certain industrial applications. Plating wash waters, cooling tower recirculation water and glass etching effluents have been treated successfully with ED for water recovery and effluent volume reduction, while ED treatment of nickel plating wash waters is an established industrial process.
Highlights
Brak toevoerwaterELEKTRODIALISEBEDRYFSBEGINSELS ED is ’n membraanproses wat berus op die vermoë van halfdeurlatende ó f positief- 6f negatiefgelaaide membrane om bepaalde ione in ’n oplossing van geïoniseerde soute deur te laat, terwyl ander ione versper word
Used mainly fo r brackish water desalination, ED has certain industrial applications
Vir die electrodialysis reversal (EDR)-proses moet swewende stowwe, yster en mangaan tot baie lae vlakke ver wyder word om membraanbevuiling te voorkom
Summary
ELEKTRODIALISEBEDRYFSBEGINSELS ED is ’n membraanproses wat berus op die vermoë van halfdeurlatende ó f positief- 6f negatiefgelaaide membrane om bepaalde ione in ’n oplossing van geïoniseerde soute deur te laat, terwyl ander ione versper word. Met die EDR-proses kan soute wat presipiteer, deur polariteitwisseling opgelos en uit die disteem ver wyder word. Vir die EDR-proses moet swewende stowwe, yster en mangaan tot baie lae vlakke ver wyder word om membraanbevuiling te voorkom. BRAKWATERONTSOUTING Baie voorbeelde van die suksesvolle ontsouting van brakwater vir drinkdoeleindes deur die ED- en die EDR-proses word in die literatuur beskryf. Standaardelektrodialise ’n Standaard ED-eenheid (7 950 mVd) word by Sanibeleiland, Florida, VSA, gebruik om brakwater met ’n TOS-konsentrasie van 2 400 tot 2 700 mg/e vir drinkdoeleindes te ontsout. Herwinning van nikkel uit galvaniseringswaswaters ’n ED-eenheid word gebruik om nikkelsoute in galvaniseringswaswater vir herwinning te konsentreer, terwyl die gehalte van die behandelde water so is dat dit as waswater hergebruik kan word.[7] Tipiese resultate word in Tabel 3 getoon. Die volume van die konsen traatstroom was minder as 2 persent van die oorspronklike volume
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
