Bioaugmentation in a newly established LECA-based horizontal flow soil filter reduces the adaptation period and enhances denitrification |
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Authors: | Kaspar Nurk Igor Zaytsev Indrek Talpsep Jaak Truu Ülo Mander |
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Institution: | aInstitute of Ecology and Earth Sciences, University of Tartu, 46 Vanemuise St., Tartu 51014, Estonia;bInstitute of Molecular and Cell Biology, Tartu University, 23 Riia St., Tartu 51010, Estonia |
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Abstract: | The possibility of enhancing the denitrification of a newly established LECA-based horizontal subsurface flow (HSSF) soil filter receiving pretreated wastewater from a vertical flow filter was studied. The pilot-scale experiment offers evidence regarding the survival and reproduction of introduced microbes taken from an LECA-based HSSF constructed wetland (CW) that has similar internal conditions, after bioaugmentation into newly established LECA-based HSSF CW mesocosms. Bioaugmentation resulted in a trend towards higher and more stable denitrification in the supplemented mesocosms during the nearly half-year study period. |
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Keywords: | Biolog Ecoplates BOD7 Microbial community NO3– N TOC |
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