Abstract
The effectiveness of a denitrification process which is driven and controlled by an electric current is demonstrated. Denitrifying microorganisms were immobilized on a carbon electrode and hydrogen was produced through the electrolysis of water. The hydrogen was utilized for the reduction of nitrate to N2. The denitrification rate was a linear function of the electric current, and it was shown that about 1 mol of electron reduces 0.2 mol of nitrate to N2 gas. These results exhibit that the proposed process is simple and feasible, especially for the treatment of low-strength nitrate solutions.
| Original language | English |
|---|---|
| Pages (from-to) | 535-537 |
| Number of pages | 3 |
| Journal | Biotechnology and Bioengineering |
| Volume | 42 |
| Issue number | 4 |
| Publication status | Published - 1993 Aug 5 |
| Externally published | Yes |
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Keywords
- Carbon electrode
- Denitrification
- electrochemical biofilm process
- Ground water
- Nitrate treatment
ASJC Scopus subject areas
- Biotechnology
- Microbiology
Cite this
Sakakibara, Y., & Kuroda, M. (1993). Electric prompting and control of denitrification. Biotechnology and Bioengineering, 42(4), 535-537.