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Influence of the Potential Carbon Sources for Field Denitrification Beds on Their Microbial Diversity and the Fate of Carbon and Nitrate

Grießmeier, Victoria; Gescher, Johannes

Nitrogen based eutrophication of ecosystems is a global problem that gains momentum through a growing global population. The water quality of nitrate or ammonium contaminated rivers and streams cannot always be amended in centralized waste water treatment plants. Field denitrification plants were suggested as a solution for a decentralized reduction of nitrate to dinitrogen. Here, stable and cheap organic carbon sources serve as carbon and electron source for a microbial community. Still, our knowledge on the impact of these organic carbon sources on the development and diversity of these cultures is sparse. Moreover, the stability of these denitrification plants at different nitrate loading rates especially in the higher concentration regime were not tested so far. In this study, we compare the fate of carbon and nitrogen as well as the microbial community of wood pellet (WP) (pressed sawdust), wheat straw, and wood chips (WC) based laboratory denitrification reactors. Our study reveals that the diversity and composition of the community is strongly dependent on the carbon source. The diversity decreased in the order WC, wheat straw, and WPs. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000084312
Veröffentlicht am 09.11.2018
DOI: 10.3389/fmicb.2018.01313
Zitationen: 4
Web of Science
Zitationen: 3
Zugehörige Institution(en) am KIT Institut für Angewandte Biowissenschaften (IAB)
Institut für Biologische Grenzflächen (IBG)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1664-302X
KITopen-ID: 1000084312
HGF-Programm 47.02.01 (POF III, LK 01)
Erschienen in Frontiers in microbiology
Band 9
Seiten Article: 1313
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 22.06.2018
Schlagworte field denitrification beds; denitrification; methanogenesis; eutrophication; wood chips; wood pellets; wheat straw
Nachgewiesen in Web of Science
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