Study on Influencing Factors of Bio-electrochemical System for Water Softening

Bio-electrochemical system (BES) was used to soften hard water, and effects of ion species, electrode area and influent concentration on the performance of BES to soften hard water were analyzed. The results showed that it was more easy to remove Mg2+ from the hard water than Ca2+. Increasing electr...

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Bibliographic Details
Published inMeteorological and environmental research Vol. 8; no. 6; pp. 54 - 55
Main Authors Yingjie, Han, Jiqiang, Zhang
Format Journal Article
LanguageEnglish
Published Cranston Wu Chu (USA-China) Science and Culture Media Corporation 01.12.2017
Subjects
Anodes
Area
Bio-electrochemical
Cathodes
Condition
Efficiency
Electricity generation
Electrochemistry
Electrodes
factors
Graphite
Influencing
Limiting factors
Microorganisms
optimization
Removal
softening
Studies
system
Voltage
Water
Water softening
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Summary:Bio-electrochemical system (BES) was used to soften hard water, and effects of ion species, electrode area and influent concentration on the performance of BES to soften hard water were analyzed. The results showed that it was more easy to remove Mg2+ from the hard water than Ca2+. Increasing electrode area could enhance the performance of BES to soften hard water. When the amount of added graphite at the anode was 150 g, the removal efficiency of Ca2+ increased by 18.1%. The increase of influent concentration at the anode and the cathode could improve the softening efficiency of hard water by BES. As COD concentration at the anode and N03~ -N concentration at the cathode increased to 2 000 and 300 mg/L, the removal efficiency of Ca2+ rose by 36.1% and 9.4% respectively.
ISSN:2152-3940
DOI:10.19547/j.issn2152-3940.2017.06.011