| Autor: |
Li, Yueh-Feng, Wang, Chang-Wei, Chen, Chih-Kuei, Chen, Meng-Wei, Fang, Ying-Chiao, Lo, Shang-Lien |
| Předmět: |
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| Zdroj: |
Journal of Environmental Engineering; Apr2024, Vol. 150 Issue 4, p1-9, 9p |
| Abstrakt: |
This study explored the recovery of phosphorus from human urine via electrochemical precipitation, employing magnesium alloy tailings as electrodes. The observed pH change during the process was primarily attributed to ammonium precipitation. However, the hydroxide produced by the cathode could potentially have a negative effect. There was a strong correlation between the amount of precipitate produced and pH, which can serve as a useful parameter for monitoring the effectiveness of the treatment. However, electrode corrosion significantly influenced the purity of the resultant struvite product. To counteract this, a device was designed to separate struvite from the electrode corrosion products using fluid flow, which led to an increase in purity. The pilot-scale application of magnesium electrodes proved to be an effective method for phosphorus recovery, achieving a high removal rate through adjustments to the residence time and current density. However, the limited source of wastewater resulted in a struvite production value that was considerably below the maintenance costs. Hence, the economic feasibility of this process necessitates further enhancement. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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