Selective reduction of nitrate to nitrogen gas in a biofilm-electrode reactor

Z. Feleke; K. Araki; Y. Sakakibara; T. Watanabe; M. Kuroda

doi:10.1016/S0043-1354(98)00018-9

Selective reduction of nitrate to nitrogen gas in a biofilm-electrode reactor

Z. Feleke, K. Araki, Y. Sakakibara^*, T. Watanabe, M. Kuroda

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

80 Citations (Scopus)

Abstract

Microbial denitrification and the occurrence of neutralization in a denitrifying biofilm-electrode reactor (BER) using an amorphous carbon anode was experimentally demonstrated. The BER was operated over one year and measurements of influent and effluent ionic species were made at different electric currents to evaluate the predominant electrochemical and biological reactions. The ionic species measured were NO₃^-, NO₂^-, SO₄^2-, Cl^-, PO₄^3-, NH₄⁺, K⁺, Ca²⁺ and Mg²⁺. The results lead to the conclusion that a highly selective reduction of nitrate is operationally possible in the present BER, hence this process is a feasible alternative for the treatment of various nitrate-contaminated water.

Original language	English
Pages (from-to)	2728-2734
Number of pages	7
Journal	Water Research
Volume	32
Issue number	9
DOIs	https://doi.org/10.1016/S0043-1354(98)00018-9
Publication status	Published - 1998 Sept
Externally published	Yes

Keywords

Biofilm-electrode reactor
Denitrification
Ground water
Nitrate
Selectivity

ASJC Scopus subject areas

Environmental Engineering
Civil and Structural Engineering
Ecological Modelling
Water Science and Technology
Waste Management and Disposal
Pollution

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10.1016/S0043-1354(98)00018-9

Cite this

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title = "Selective reduction of nitrate to nitrogen gas in a biofilm-electrode reactor",

abstract = "Microbial denitrification and the occurrence of neutralization in a denitrifying biofilm-electrode reactor (BER) using an amorphous carbon anode was experimentally demonstrated. The BER was operated over one year and measurements of influent and effluent ionic species were made at different electric currents to evaluate the predominant electrochemical and biological reactions. The ionic species measured were NO3-, NO2-, SO42-, Cl-, PO43-, NH4+, K+, Ca2+ and Mg2+. The results lead to the conclusion that a highly selective reduction of nitrate is operationally possible in the present BER, hence this process is a feasible alternative for the treatment of various nitrate-contaminated water.",

keywords = "Biofilm-electrode reactor, Denitrification, Ground water, Nitrate, Selectivity",

author = "Z. Feleke and K. Araki and Y. Sakakibara and T. Watanabe and M. Kuroda",

note = "Funding Information: This research was partially supported by the grant-in-aid for The Development of Scientific Research (# 07555461) from the Ministry of Education, Science and Culture of Japan.",

year = "1998",

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doi = "10.1016/S0043-1354(98)00018-9",

language = "English",

volume = "32",

pages = "2728--2734",

journal = "Water Research",

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publisher = "Elsevier Limited",

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TY - JOUR

T1 - Selective reduction of nitrate to nitrogen gas in a biofilm-electrode reactor

AU - Feleke, Z.

AU - Araki, K.

AU - Sakakibara, Y.

AU - Watanabe, T.

AU - Kuroda, M.

N1 - Funding Information: This research was partially supported by the grant-in-aid for The Development of Scientific Research (# 07555461) from the Ministry of Education, Science and Culture of Japan.

PY - 1998/9

Y1 - 1998/9

N2 - Microbial denitrification and the occurrence of neutralization in a denitrifying biofilm-electrode reactor (BER) using an amorphous carbon anode was experimentally demonstrated. The BER was operated over one year and measurements of influent and effluent ionic species were made at different electric currents to evaluate the predominant electrochemical and biological reactions. The ionic species measured were NO3-, NO2-, SO42-, Cl-, PO43-, NH4+, K+, Ca2+ and Mg2+. The results lead to the conclusion that a highly selective reduction of nitrate is operationally possible in the present BER, hence this process is a feasible alternative for the treatment of various nitrate-contaminated water.

AB - Microbial denitrification and the occurrence of neutralization in a denitrifying biofilm-electrode reactor (BER) using an amorphous carbon anode was experimentally demonstrated. The BER was operated over one year and measurements of influent and effluent ionic species were made at different electric currents to evaluate the predominant electrochemical and biological reactions. The ionic species measured were NO3-, NO2-, SO42-, Cl-, PO43-, NH4+, K+, Ca2+ and Mg2+. The results lead to the conclusion that a highly selective reduction of nitrate is operationally possible in the present BER, hence this process is a feasible alternative for the treatment of various nitrate-contaminated water.

KW - Biofilm-electrode reactor

KW - Denitrification

KW - Ground water

KW - Nitrate

KW - Selectivity

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DO - 10.1016/S0043-1354(98)00018-9

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SN - 0043-1354

VL - 32

SP - 2728

EP - 2734

JO - Water Research

JF - Water Research

IS - 9

ER -

Selective reduction of nitrate to nitrogen gas in a biofilm-electrode reactor

Abstract

Keywords

ASJC Scopus subject areas

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