Impact of various surfactant classes on the microorganism community used for WWTP biodegradation treatment

Environmental pollution is an important issue influencing human health and environmental equilibrium. The range of pollutants is very wide due to industrialization and population growth and the surfactants are one of the most common organic pollutants due to their extensive use and ubiquitous presen...

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Bibliographic Details
Published inRomanian Journal of Ecology & Environmental Chemistry Vol. 2; no. 2; pp. 210 - 220
Main Authors Mitru, Daniel, Lucaciu, Irina, Nita-Lazar, Mihai, Covaliu, Cristina Ileana, Nechifor, Gheorghe, Moga, Ioana Corina, Marin, Bogdan, Paun, Iuliana
Format Journal Article
LanguageEnglish
Published Estfalia 30.10.2020
Subjects
activated sludge
inhibition effect
respirometry test
surfactants
wastewater treatment plants
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Summary:Environmental pollution is an important issue influencing human health and environmental equilibrium. The range of pollutants is very wide due to industrialization and population growth and the surfactants are one of the most common organic pollutants due to their extensive use and ubiquitous presence from industry to households. Their massive presence in the domestic and industrial wastewater could affect the Wastewater treatment plants by inhibiting the activated sludge used in pollutants biodegradation treatment step. This paper aimed to study the inhibition effect of three classes of surfactants (nonionic, anionic, and cationic) by measuring the respiratory activity of microorganisms with the application of the Oxygen Uptake Rate (OUR) test. This study established that the surfactants could activate or inhibit microorganisms’ activity, depending on surfactant concentration.
ISSN:2668-5418
2668-8530
DOI:10.21698/rjeec.2020.226