Ammonia conversion characteristics in a closed recirculating aquaculture system

Guang Yu Wang; Ji Xian Yang; Fang Ma; Lei Chen; Wei Guo Li; Jingbo Guo

doi:10.1109/ICBBE.2009.5162304

Ammonia conversion characteristics in a closed recirculating aquaculture system

Guang Yu Wang
, Ji Xian Yang
, Fang Ma^*
, Lei Chen
, Wei Guo Li
, Jingbo Guo

^*Corresponding author for this work

Harbin Institute of Technology Weihai
Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

Nitrification and denitrification were commonly used in the recirculating aquaculture system (RAS) to decrease the ammonia and nitrate concentration. The variation characteristics of nitrogenous compounds and microbiology in a closed RAS were studied with gradually increasing ammonia-nitrogen (NH₄+-N) concentration. The NH₄+-N was completely converted into nitrite nitrogen (NO₂--N) in 46 days, but the NO₂--N raised slowly since the ammonia-oxidizing rate was faster than the nitrite-oxidizing rate. The NO₂--N descended when the NH₄+-N concentration in the aquarium was stable for several days. Time for the NO₂--N decline gradually became longer if we continued increasing the NH₄+-N concentration. The nitrogen loss (residual total nitrogen/total additive nitrogen) was about 20-40% during the experiment. The numbers of two kinds of bacteria showed that the increase of nitrification activity of the system was mainly attributed to the exit of numerous ammonium-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB). Data indicated that nitrification and aerobic denitrification can be both perfectly achieved in aerobic and low COD (Chemical Oxygen Demand) conditions. Marine nitrifiers from this approach led to the development of bacterial amendments that can be used as start-up cultures for new operations or damaged filters, and potentially enhance nitrification in established filters.

Original language	English
Title of host publication	3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
DOIs	https://doi.org/10.1109/ICBBE.2009.5162304
State	Published - 2009
Event	3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009 - Beijing, China Duration: 11 Jun 2009 → 13 Jun 2009

Publication series

Name	3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009

Conference

Conference	3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009
Country/Territory	China
City	Beijing
Period	11/06/09 → 13/06/09

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Keywords

Aerobic denitrification
Bacteria
Nitrification
Nitrogenous compound
Recirculating aquaculture systems (RAS)

Access to Document

10.1109/ICBBE.2009.5162304

Cite this

Wang, G. Y., Yang, J. X., Ma, F., Chen, L., Li, W. G., & Guo, J. (2009). Ammonia conversion characteristics in a closed recirculating aquaculture system. In 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009 Article 5162304 (3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009). https://doi.org/10.1109/ICBBE.2009.5162304

@inproceedings{20e04580d1b64f849e4d7b453db0c6ab,

title = "Ammonia conversion characteristics in a closed recirculating aquaculture system",

abstract = "Nitrification and denitrification were commonly used in the recirculating aquaculture system (RAS) to decrease the ammonia and nitrate concentration. The variation characteristics of nitrogenous compounds and microbiology in a closed RAS were studied with gradually increasing ammonia-nitrogen (NH4+-N) concentration. The NH4+-N was completely converted into nitrite nitrogen (NO2--N) in 46 days, but the NO2--N raised slowly since the ammonia-oxidizing rate was faster than the nitrite-oxidizing rate. The NO2--N descended when the NH4+-N concentration in the aquarium was stable for several days. Time for the NO2--N decline gradually became longer if we continued increasing the NH4+-N concentration. The nitrogen loss (residual total nitrogen/total additive nitrogen) was about 20-40\% during the experiment. The numbers of two kinds of bacteria showed that the increase of nitrification activity of the system was mainly attributed to the exit of numerous ammonium-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB). Data indicated that nitrification and aerobic denitrification can be both perfectly achieved in aerobic and low COD (Chemical Oxygen Demand) conditions. Marine nitrifiers from this approach led to the development of bacterial amendments that can be used as start-up cultures for new operations or damaged filters, and potentially enhance nitrification in established filters.",

keywords = "Aerobic denitrification, Bacteria, Nitrification, Nitrogenous compound, Recirculating aquaculture systems (RAS)",

author = "Wang, \{Guang Yu\} and Yang, \{Ji Xian\} and Fang Ma and Lei Chen and Li, \{Wei Guo\} and Jingbo Guo",

year = "2009",

doi = "10.1109/ICBBE.2009.5162304",

language = "英语",

isbn = "9781424429028",

series = "3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009",

booktitle = "3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009",

note = "3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009 ; Conference date: 11-06-2009 Through 13-06-2009",

}

Wang, GY , Yang, JX , Ma, F, Chen, L, Li, WG & Guo, J 2009, Ammonia conversion characteristics in a closed recirculating aquaculture system. in 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009., 5162304, 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009, 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009, Beijing, China, 11/06/09. https://doi.org/10.1109/ICBBE.2009.5162304

Ammonia conversion characteristics in a closed recirculating aquaculture system. / Wang, Guang Yu ; Yang, Ji Xian ; Ma, Fang et al.
3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009. 2009. 5162304 (3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Ammonia conversion characteristics in a closed recirculating aquaculture system

AU - Wang, Guang Yu

AU - Yang, Ji Xian

AU - Ma, Fang

AU - Chen, Lei

AU - Li, Wei Guo

AU - Guo, Jingbo

PY - 2009

Y1 - 2009

N2 - Nitrification and denitrification were commonly used in the recirculating aquaculture system (RAS) to decrease the ammonia and nitrate concentration. The variation characteristics of nitrogenous compounds and microbiology in a closed RAS were studied with gradually increasing ammonia-nitrogen (NH4+-N) concentration. The NH4+-N was completely converted into nitrite nitrogen (NO2--N) in 46 days, but the NO2--N raised slowly since the ammonia-oxidizing rate was faster than the nitrite-oxidizing rate. The NO2--N descended when the NH4+-N concentration in the aquarium was stable for several days. Time for the NO2--N decline gradually became longer if we continued increasing the NH4+-N concentration. The nitrogen loss (residual total nitrogen/total additive nitrogen) was about 20-40% during the experiment. The numbers of two kinds of bacteria showed that the increase of nitrification activity of the system was mainly attributed to the exit of numerous ammonium-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB). Data indicated that nitrification and aerobic denitrification can be both perfectly achieved in aerobic and low COD (Chemical Oxygen Demand) conditions. Marine nitrifiers from this approach led to the development of bacterial amendments that can be used as start-up cultures for new operations or damaged filters, and potentially enhance nitrification in established filters.

AB - Nitrification and denitrification were commonly used in the recirculating aquaculture system (RAS) to decrease the ammonia and nitrate concentration. The variation characteristics of nitrogenous compounds and microbiology in a closed RAS were studied with gradually increasing ammonia-nitrogen (NH4+-N) concentration. The NH4+-N was completely converted into nitrite nitrogen (NO2--N) in 46 days, but the NO2--N raised slowly since the ammonia-oxidizing rate was faster than the nitrite-oxidizing rate. The NO2--N descended when the NH4+-N concentration in the aquarium was stable for several days. Time for the NO2--N decline gradually became longer if we continued increasing the NH4+-N concentration. The nitrogen loss (residual total nitrogen/total additive nitrogen) was about 20-40% during the experiment. The numbers of two kinds of bacteria showed that the increase of nitrification activity of the system was mainly attributed to the exit of numerous ammonium-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB). Data indicated that nitrification and aerobic denitrification can be both perfectly achieved in aerobic and low COD (Chemical Oxygen Demand) conditions. Marine nitrifiers from this approach led to the development of bacterial amendments that can be used as start-up cultures for new operations or damaged filters, and potentially enhance nitrification in established filters.

KW - Aerobic denitrification

KW - Bacteria

KW - Nitrification

KW - Nitrogenous compound

KW - Recirculating aquaculture systems (RAS)

UR - https://www.scopus.com/pages/publications/72749092663

U2 - 10.1109/ICBBE.2009.5162304

DO - 10.1109/ICBBE.2009.5162304

M3 - 会议稿件

AN - SCOPUS:72749092663

SN - 9781424429028

T3 - 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009

BT - 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009

T2 - 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009

Y2 - 11 June 2009 through 13 June 2009

ER -

Ammonia conversion characteristics in a closed recirculating aquaculture system

Abstract

Publication series

Conference

UN SDGs

Keywords

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