Abstract To evaluate the corrosivity of seawater, the SWRO (Sea Water Reverse Osmosis) produced water, and the community tap water were used in this study. Weight loss method and potentiodynamic polarization test were applied to compare the corrosivity between them. Coupons and pipes for the experiments were prepared with the same materials such as carbon steel, zinc, copper, and STS304 achieved in equivalent condition. As a result of experiments, seawater showed constituent ions such as Cl−, SO4 2−, Mg2+, and Ca2+ (in order of abundance), while the SWRO produced water showed lower pH, calcium hardness and alkalinity than the tap water. Since chloride ion, as an acceleration factor of corrosion, was highly detected, the test results of weight loss method and potentiodynamic polarization indicated that release of metal ions and weigh loss were more abundant in the SWRO membrane desalted permeate than in the tap water. Besides, corrosion potential was also lower in SWRO membrane desalted permeate. It represents that the surface of metal could be exposed easily to oxidize in SWRO condition due to low dissolved alkali metal ion of water.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Corrosivity evaluation of SWRO membrane desalted permeate


    Beteiligte:
    Woo, Dal-Sik (Autor:in) / Hwang, Byung-Gi (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    27.12.2013


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Corrosivity evaluation of SWRO membrane desalted permeate

    Woo, Dal-Sik / Hwang, Byung-Gi | Online Contents | 2014


    Electrochemical Evaluation of Corrosivity in Turbine Engine Oils

    Stallings, L. / Rebuck, N. / Kennedy, P. et al. | SAE Technical Papers | 1985


    Corrosivity in question in GHS

    Online Contents | 2010


    "Atmospheric Corrosivity at Air Based"

    Klasser, R. D. / Roberge, P. / Hinton, B. et al. | British Library Conference Proceedings | 1999


    Corrosivity monitoring on operational aircraft

    Agarwala, V.S. | Tema Archiv | 1998