The importance of the mineral substrate of the biofilm in the process of low-temperature removal of nitrogen compounds from wastewater
Authors:
- Anna Maria Anielak,
- Polus Michał,
- Helena Diakun,
- Izabela Radomska-Kreft
Abstract
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, CO2 emissions were reduced and much smaller amounts of NOx 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.
- Record ID
- CUT6914c742dd1b48dca3b41cf24764a38a
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2023
- Vol
- 16
- No
- 23
- Pages
- [1-20]
- Article number
- 7417
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 19-20; Bibliografia (liczba pozycji) - 32; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 16, Iss. 23
- Keywords in English
- nitrification, denitrification, SBR, biofilm, ammonia-oxidizing archaea, ammonia-oxidizing bacteria, simultaneous nitrification and denitrification, nitrogen compounds
- ASJC Classification
- DOI
- DOI:10.3390/ma16237417 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/16/23/7417 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT6914c742dd1b48dca3b41cf24764a38a/
- URN
urn:pkr-prod:CUT6914c742dd1b48dca3b41cf24764a38a
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.