2013 Fiscal Year Final Research Report
Development of new electro-advanced oxidation processes reusing resources in wastewater
| Project/Area Number |
23560655
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Ryukoku University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 促進酸化処理 / 電解フェントン型処理 / 水酸基ラジカル / 電解処理 |
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| Research Abstract |
The conventional advanced oxidation processes (AOPs) have defects of high costs of special apparatus and/or heavy chemicals management. Accordingly, new AOPs, namely the electrochemical Fenton-type process (E-Fenton) and the electrolytic hypochlorous acid-hydrogen peroxide process (E-HOCl/H2O2), were developed in this research, in which chloride ion in wastewater was catalytically reused.
Effects of several operational parameters like current density and linear velocity on the performance of E-Fenton were evaluated, and the reusability of iron sludge was discussed. Consequently, E-Fenton was established as a new AOP requiring lower chemicals cost than the conventional one.
The availability of seawater as a chloride ion source for E-HOCl/H2O2 was demonstrated, and finally this process was proved to function well as a new AOP under neutral pH without sludge production.
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