The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater
This study researched the use of biofilms to remove nitrogen compounds from municipal sewages at low temperatures, especially in winter. An aluminosilicate substrate was used to create a biofilm, which has an affinity for ammonium ions. The selection of biofilm-forming microorganisms has been shown...
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MDPI AG
2023-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/23/7417 |
| _version_ | 1797399916761317376 |
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| author | Anna Maria Anielak Michał Polus Helena Diakun Izabela Radomska-Kreft |
| author_facet | Anna Maria Anielak Michał Polus Helena Diakun Izabela Radomska-Kreft |
| author_sort | Anna Maria Anielak |
| collection | DOAJ |
| description | This study researched the use of biofilms to remove nitrogen compounds from municipal sewages at low temperatures, especially in winter. An aluminosilicate substrate was used to create a biofilm, which has an affinity for ammonium ions. The selection of biofilm-forming microorganisms has been shown to occur on aluminosilicate. This substrate is mainly inhabited by microorganisms that remove nitrogen compounds. As a result, microorganisms protected against external factors in the biofilm effectively remove nitrogen compounds. The TN content in sewage treated at a temperature of 10 °C was of a 4 mg/L order and was 3–5 times lower than in the reference system (classical conditions). This process involves shortened nitrification/denitrification such as Anammox. As a result of a given process, CO<sub>2</sub> emissions were reduced and much smaller amounts of NO<sub>x</sub> were produced, positively impacting the ongoing climate changes. Microbiological DNA/RNA tests have shown that the biofilm is primarily composed of archaea and bacteria that remove nitrogen compounds, including those that oxidize ammonia. |
| first_indexed | 2024-03-09T01:47:07Z |
| format | Article |
| id | doaj.art-9a824d1f6a424f3c9d5d7894cb0860a0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T01:47:07Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-9a824d1f6a424f3c9d5d7894cb0860a02023-12-08T15:21:07ZengMDPI AGMaterials1996-19442023-11-011623741710.3390/ma16237417The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from WastewaterAnna Maria Anielak0Michał Polus1Helena Diakun2Izabela Radomska-Kreft3Faculty of Environmental Engineering and Energy, Cracow University of Technology, Warszawska 24, 31-155 Krakow, PolandFaculty of Environmental Engineering and Energy, Cracow University of Technology, Warszawska 24, 31-155 Krakow, PolandMunicipal Sewage Treatment Plant in Człuchów Przedsiębiorstwo Komunalne Spółka z o.o., ul. Sobieskiego, 11, 77-300 Człuchów, PolandMunicipal Sewage Treatment Plant in Człuchów Przedsiębiorstwo Komunalne Spółka z o.o., ul. Sobieskiego, 11, 77-300 Człuchów, PolandThis study researched the use of biofilms to remove nitrogen compounds from municipal sewages at low temperatures, especially in winter. An aluminosilicate substrate was used to create a biofilm, which has an affinity for ammonium ions. The selection of biofilm-forming microorganisms has been shown to occur on aluminosilicate. This substrate is mainly inhabited by microorganisms that remove nitrogen compounds. As a result, microorganisms protected against external factors in the biofilm effectively remove nitrogen compounds. The TN content in sewage treated at a temperature of 10 °C was of a 4 mg/L order and was 3–5 times lower than in the reference system (classical conditions). This process involves shortened nitrification/denitrification such as Anammox. As a result of a given process, CO<sub>2</sub> emissions were reduced and much smaller amounts of NO<sub>x</sub> were produced, positively impacting the ongoing climate changes. Microbiological DNA/RNA tests have shown that the biofilm is primarily composed of archaea and bacteria that remove nitrogen compounds, including those that oxidize ammonia.https://www.mdpi.com/1996-1944/16/23/7417nitrificationdenitrificationSBRbiofilmammonia-oxidizing archaeaammonia-oxidizing bacteria |
| spellingShingle | Anna Maria Anielak Michał Polus Helena Diakun Izabela Radomska-Kreft The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater Materials nitrification denitrification SBR biofilm ammonia-oxidizing archaea ammonia-oxidizing bacteria |
| title | The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater |
| title_full | The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater |
| title_fullStr | The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater |
| title_full_unstemmed | The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater |
| title_short | The Importance of the Mineral Substrate of the Biofilm in the Process of Low-Temperature Removal of Nitrogen Compounds from Wastewater |
| title_sort | importance of the mineral substrate of the biofilm in the process of low temperature removal of nitrogen compounds from wastewater |
| topic | nitrification denitrification SBR biofilm ammonia-oxidizing archaea ammonia-oxidizing bacteria |
| url | https://www.mdpi.com/1996-1944/16/23/7417 |
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