title: Electric prompting and control of denitrification.
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 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.
authors.affiliation: Department of Civil Engineering, Gunma University, Kiryu-shi, Gunma 376, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Sakakibara
authors.forename: M
authors.initials: M
authors.lastname: Kuroda