A hybrid biofilm reactor for nitrate and pesticide removal

Y. Sakakibara; Z. Feleke; T. Katahira

doi:10.2166/ws.2002.0043

A hybrid biofilm reactor for nitrate and pesticide removal

Y. Sakakibara^*, Z. Feleke, T. Katahira

^*Corresponding author for this work

School of Creative Science and Engineering

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

2 Citations (Scopus)

Abstract

The feasibility of a hybrid biofilm reactor for nitrate and pesticide removal was demonstrated experimentally and theoretically. The reactor consists of an outer cylindrical cathode on which denitrifying autotrophic biofilm was attached and an inner anodic compartment packed with GAC. A bactericide, isoprothiolane (IPT), was used as a model pesticide, which inhibited the biological reduction step of N₂O to N₂. In the hybrid biofilm reactor, however, IPT was removed effectively by the GAC anode so that complete denitrification was achieved without accumulation of N₂O. Simultaneous removal of nitrate and pesticide was evaluated by a mathematical model based on a simplified inhibition kinetics and Langmuir adsorption isotherm. Calculation results using the model were in fairly good agreement with experimental results.

Original language	English
Pages (from-to)	35-42
Number of pages	8
Journal	Water Science and Technology: Water Supply
Volume	2
Issue number	2
DOIs	https://doi.org/10.2166/ws.2002.0043
Publication status	Published - 2002

Keywords

Biofilm-electrode reactor
Denitrification
GAC
H
Nitrate
Pesticide

ASJC Scopus subject areas

Water Science and Technology

Access to Document

10.2166/ws.2002.0043

Cite this

@article{da1ac4c5f9bf4bafbb4c4f1a859af842,

title = "A hybrid biofilm reactor for nitrate and pesticide removal",

abstract = "The feasibility of a hybrid biofilm reactor for nitrate and pesticide removal was demonstrated experimentally and theoretically. The reactor consists of an outer cylindrical cathode on which denitrifying autotrophic biofilm was attached and an inner anodic compartment packed with GAC. A bactericide, isoprothiolane (IPT), was used as a model pesticide, which inhibited the biological reduction step of N2O to N2. In the hybrid biofilm reactor, however, IPT was removed effectively by the GAC anode so that complete denitrification was achieved without accumulation of N2O. Simultaneous removal of nitrate and pesticide was evaluated by a mathematical model based on a simplified inhibition kinetics and Langmuir adsorption isotherm. Calculation results using the model were in fairly good agreement with experimental results.",

keywords = "Biofilm-electrode reactor, Denitrification, GAC, H, Nitrate, Pesticide",

author = "Y. Sakakibara and Z. Feleke and T. Katahira",

year = "2002",

doi = "10.2166/ws.2002.0043",

language = "English",

volume = "2",

pages = "35--42",

journal = "Water Supply",

issn = "1606-9749",

publisher = "IWA Publishing",

number = "2",

}

TY - JOUR

T1 - A hybrid biofilm reactor for nitrate and pesticide removal

AU - Sakakibara, Y.

AU - Feleke, Z.

AU - Katahira, T.

PY - 2002

Y1 - 2002

N2 - The feasibility of a hybrid biofilm reactor for nitrate and pesticide removal was demonstrated experimentally and theoretically. The reactor consists of an outer cylindrical cathode on which denitrifying autotrophic biofilm was attached and an inner anodic compartment packed with GAC. A bactericide, isoprothiolane (IPT), was used as a model pesticide, which inhibited the biological reduction step of N2O to N2. In the hybrid biofilm reactor, however, IPT was removed effectively by the GAC anode so that complete denitrification was achieved without accumulation of N2O. Simultaneous removal of nitrate and pesticide was evaluated by a mathematical model based on a simplified inhibition kinetics and Langmuir adsorption isotherm. Calculation results using the model were in fairly good agreement with experimental results.

AB - The feasibility of a hybrid biofilm reactor for nitrate and pesticide removal was demonstrated experimentally and theoretically. The reactor consists of an outer cylindrical cathode on which denitrifying autotrophic biofilm was attached and an inner anodic compartment packed with GAC. A bactericide, isoprothiolane (IPT), was used as a model pesticide, which inhibited the biological reduction step of N2O to N2. In the hybrid biofilm reactor, however, IPT was removed effectively by the GAC anode so that complete denitrification was achieved without accumulation of N2O. Simultaneous removal of nitrate and pesticide was evaluated by a mathematical model based on a simplified inhibition kinetics and Langmuir adsorption isotherm. Calculation results using the model were in fairly good agreement with experimental results.

KW - Biofilm-electrode reactor

KW - Denitrification

KW - GAC

KW - H

KW - Nitrate

KW - Pesticide

UR - http://www.scopus.com/inward/record.url?scp=0036096557&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036096557&partnerID=8YFLogxK

U2 - 10.2166/ws.2002.0043

DO - 10.2166/ws.2002.0043

M3 - Article

AN - SCOPUS:0036096557

SN - 1606-9749

VL - 2

SP - 35

EP - 42

JO - Water Supply

JF - Water Supply

IS - 2

ER -

A hybrid biofilm reactor for nitrate and pesticide removal

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this