Packed bed columns for high rate nitrogen and carbon removals

S. L. Ong; J. Y. Hu; L. Y. Lee; W. J. Ng; L. F. Song

doi:10.2166/wst.2002.0717

Packed bed columns for high rate nitrogen and carbon removals

S. L. Ong, J. Y. Hu, L. Y. Lee, W. J. Ng, L. F. Song

Civil Environ Construct Engineering

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

3 Scopus citations

Abstract

Two packed bed column (PB) systems, namely anoxic-anoxic and anoxic-oxic were investigated for treatment of wastewater containing high concentrations of nitrogen (N) and COD. The anoxic-anoxic PB system was able to achieve N and COD removal rates of up 6.70 kg N/m³.d and 26.02 kg COD/m³.d, respectively. The responding removal rates of the anoxic-acid PB system were 7.41 kg N/m³ and 28.00 kg COD/m³.d respectively. The N and COD removal efficiencies of anoxic anoxic PB system were in the range of 99.2-100% and 97.2-98.8%, respectively. The corresponding removal efficiencies of anoxic-oxic PB system were 97.5-100% and 98.6-99.4%, respectively. These findings showed that a PB system consisting of anoxic-oxic columns in series has a high capacity to remove nitrogenous and carbonaceous compounds even though the influent to the anoxic stage was oxygenated. Better system stability in terms of denitrification was, however, obtained with the anoxic-anoxic system.

Original language	English
Pages (from-to)	57-62
Number of pages	6
Journal	Water Science and Technology
Volume	46
Issue number	11-12
DOIs	https://doi.org/10.2166/wst.2002.0717
State	Published - 2002

Keywords

COD removal
Denitrification
Nitrogen removal
Oxic
Packed bed column

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10.2166/wst.2002.0717

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title = "Packed bed columns for high rate nitrogen and carbon removals",

abstract = "Two packed bed column (PB) systems, namely anoxic-anoxic and anoxic-oxic were investigated for treatment of wastewater containing high concentrations of nitrogen (N) and COD. The anoxic-anoxic PB system was able to achieve N and COD removal rates of up 6.70 kg N/m3.d and 26.02 kg COD/m3.d, respectively. The responding removal rates of the anoxic-acid PB system were 7.41 kg N/m3 and 28.00 kg COD/m3.d respectively. The N and COD removal efficiencies of anoxic anoxic PB system were in the range of 99.2-100% and 97.2-98.8%, respectively. The corresponding removal efficiencies of anoxic-oxic PB system were 97.5-100% and 98.6-99.4%, respectively. These findings showed that a PB system consisting of anoxic-oxic columns in series has a high capacity to remove nitrogenous and carbonaceous compounds even though the influent to the anoxic stage was oxygenated. Better system stability in terms of denitrification was, however, obtained with the anoxic-anoxic system.",

keywords = "COD removal, Denitrification, Nitrogen removal, Oxic, Packed bed column",

author = "Ong, {S. L.} and Hu, {J. Y.} and Lee, {L. Y.} and Ng, {W. J.} and Song, {L. F.}",

year = "2002",

doi = "10.2166/wst.2002.0717",

language = "English",

volume = "46",

pages = "57--62",

journal = "Water Science and Technology",

issn = "0273-1223",

publisher = "IWA Publishing",

number = "11-12",

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TY - JOUR

T1 - Packed bed columns for high rate nitrogen and carbon removals

AU - Ong, S. L.

AU - Hu, J. Y.

AU - Lee, L. Y.

AU - Ng, W. J.

AU - Song, L. F.

PY - 2002

Y1 - 2002

N2 - Two packed bed column (PB) systems, namely anoxic-anoxic and anoxic-oxic were investigated for treatment of wastewater containing high concentrations of nitrogen (N) and COD. The anoxic-anoxic PB system was able to achieve N and COD removal rates of up 6.70 kg N/m3.d and 26.02 kg COD/m3.d, respectively. The responding removal rates of the anoxic-acid PB system were 7.41 kg N/m3 and 28.00 kg COD/m3.d respectively. The N and COD removal efficiencies of anoxic anoxic PB system were in the range of 99.2-100% and 97.2-98.8%, respectively. The corresponding removal efficiencies of anoxic-oxic PB system were 97.5-100% and 98.6-99.4%, respectively. These findings showed that a PB system consisting of anoxic-oxic columns in series has a high capacity to remove nitrogenous and carbonaceous compounds even though the influent to the anoxic stage was oxygenated. Better system stability in terms of denitrification was, however, obtained with the anoxic-anoxic system.

AB - Two packed bed column (PB) systems, namely anoxic-anoxic and anoxic-oxic were investigated for treatment of wastewater containing high concentrations of nitrogen (N) and COD. The anoxic-anoxic PB system was able to achieve N and COD removal rates of up 6.70 kg N/m3.d and 26.02 kg COD/m3.d, respectively. The responding removal rates of the anoxic-acid PB system were 7.41 kg N/m3 and 28.00 kg COD/m3.d respectively. The N and COD removal efficiencies of anoxic anoxic PB system were in the range of 99.2-100% and 97.2-98.8%, respectively. The corresponding removal efficiencies of anoxic-oxic PB system were 97.5-100% and 98.6-99.4%, respectively. These findings showed that a PB system consisting of anoxic-oxic columns in series has a high capacity to remove nitrogenous and carbonaceous compounds even though the influent to the anoxic stage was oxygenated. Better system stability in terms of denitrification was, however, obtained with the anoxic-anoxic system.

KW - COD removal

KW - Denitrification

KW - Nitrogen removal

KW - Oxic

KW - Packed bed column

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U2 - 10.2166/wst.2002.0717

DO - 10.2166/wst.2002.0717

M3 - Article

C2 - 12523733

AN - SCOPUS:0036956298

SN - 0273-1223

VL - 46

SP - 57

EP - 62

JO - Water Science and Technology

JF - Water Science and Technology

IS - 11-12

ER -

Packed bed columns for high rate nitrogen and carbon removals

Abstract

Keywords

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