Effect of a static magnetic field of 7 mT on formaldehyde biodegradation in industrial wastewater from urea-formaldehyde resin production by activated sludge

Maria Łebkowska , Anna Rutkowska-Narożniak , Elżbieta Pajor


The goal of this study was to assess the efficiency of treating industrial urea–formaldehyde wastewater by activated sludge in a static magnetic field (MF) of 7 mT and the efficiency of treating the wastewater in a bioreactor not exposed to an MF. Exposure to the MF increased formaldehyde (FA) removal from industrial wastewater with an FA concentration of 1600 mg/l by 20%. The MF had also a positive effect on the efficiency of chemical oxygen demand (COD) removal, and bacteria and activated sludge biomass growth, especially when the COD loading increased rapidly. Industrial wastewater may contain up to 13000 mg FA/l. Therefore, its treatment can require the application of more than one method to ensure that the final FA concentration will be within the permissible limit. The application of an MF to enhance the biological processes may be favourable solution to this problem.
Author Maria Łebkowska (FEE / DB)
Maria Łebkowska,,
- Department of Biology
, Anna Rutkowska-Narożniak (FEE / DB)
Anna Rutkowska-Narożniak,,
- Department of Biology
, Elżbieta Pajor (FEE / DB)
Elżbieta Pajor,,
- Department of Biology
Journal seriesBioresource Technology, ISSN 0960-8524
Issue year2013
Keywords in Englishmagnetic field, activated sludge, formaldehyde
ASJC Classification2311 Waste Management and Disposal; 2105 Renewable Energy, Sustainability and the Environment; 2700 General Medicine; 2305 Environmental Engineering; 1502 Bioengineering
URL http://www.sciencedirect.com/science/article/pii/S0960852413000436
Languageen angielski
Score (nominal)45
Score sourcejournalList
ScoreMinisterial score = 45.0, 18-12-2019, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 18-12-2019, ArticleFromJournal
Publication indicators WoS Citations = 23; Scopus Citations = 25; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 2.467; WoS Impact Factor: 2013 = 5.039 (2) - 2013=5.6 (5)
Citation count*7 (2015-09-11)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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