Electric prompting and control of denitrification | Zendy

Sakakibara Yutaka | Zendy; Kuroda Masao | Zendy

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Electric prompting and control of denitrification

Author(s) -

Sakakibara Yutaka,

Kuroda Masao

Publication year - 1993

Publication title -

biotechnology and bioengineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.136

H-Index - 189

eISSN - 1097-0290

pISSN - 0006-3592

DOI - 10.1002/bit.260420418

Subject(s) - denitrification , denitrifying bacteria , nitrate , electrolysis , chemistry , electrolysis of water , hydrogen , inorganic chemistry , microorganism , environmental chemistry , electrode , nitrogen , bacteria , organic chemistry , biology , electrolyte , genetics

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 N 2 . 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 N 2 gas. These results exhibit that the proposed process is simple and feasible, especially for the treatment of low‐strength nitrate solutions. © 1993 John Wiley & Sons, Inc.

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