J-STAGE Data
Browse
1/1
2 files

Systematic Investigation of Microbial Desalination Cells (MDC) Performance under the Impact of Cation Migration Behavior and Multi-cation Interactions in Industrial Wastewater (Supporting Information)

dataset
posted on 2023-04-27, 04:51 authored by Hongyi LI, Siqi TONG, Hongfa WANG, Yi WANG

Microbial desalination cells (MDCs) provide a sustainable approach to desalinate saltwater powered by bacterial metabolism during organic oxidation. A systematic study was conducted to clarify the ion-dominated interactions for preventing unpredictable risks for long-term MDC operations in the treatment of complex ion-containing wastewaters. The investigation showed that the migration and unequal scaling of cations at different ion exchange membrane (IEM) surfaces greatly influenced their transmembrane processes, which were directly affected by the hydrolysis and precipitation behavior controlled by the solubility product and ambient solution, resulting in the following removal efficiency of MDCs: Na+ > Ca2+ > Cu2+ > Al3+ > Fe3+. A further study showed that the precipitation antagonism and pH buffer effect of multiple cations could positively promote the desalination of sparingly soluble cations. Eventually, the desalination efficiency of MDC in the treatment of actual industrial tailwater was maintained at 63.2–74.1 %. These findings not only elucidated the kinetics of ion migration in detail but also offered new application possibilities for MDCs.

Funding

Transformation Program of Scientific and Technological Achievements of Jiangsu Province

History

Corresponding author email address

hjlihongyi@njit.edu.cn

Copyright

© 2023 The Author(s).

Usage metrics

    Electrochemistry

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC