The impact of woodchip-gravel mixture on the efficiency and toxicity of denitrification bioreactors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU131685" target="_blank" >RIV/00216305:26110/18:PU131685 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/19:10382510 RIV/60461373:22320/19:43915520
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0048969718330110?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0048969718330110?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.scitotenv.2018.08.042" target="_blank" >10.1016/j.scitotenv.2018.08.042</a>
Alternative languages
Result language
angličtina
Original language name
The impact of woodchip-gravel mixture on the efficiency and toxicity of denitrification bioreactors
Original language description
Woodchip-based denitrification bioreactors are widely used for treatment of high loads of nitrate pollution in agricultural run-off water. A concern raised recently, as a consequence of various organic fillings being experimented with, is whether the positive effect given by nitrate reduction could override the negative effects of such bioreactors, mainly caused by degradation of wood and the production of potentially harmful conditions for aquatic ecosystems. This paper presents the results of the experimental testing of two different filling materials: birch (BWCH) and spruce (SWCH) woodchip, and their mixture with washed gravel (WG) in volumetric ratio 10:1.We have focused on the leaching of organic carbon and phenols, and its impact on selected aquatic organisms, aswell as on their denitrification efficiency andNO3 −load removal rate (LRT). The results showthat TOC, DOC and FNI (phenolic index) leaching is higher for the pure woodchip materials and is closely correlated with the growth inhibition of tested organisms (Vibrio fischeri, Daphnia magna, Desmodesmus subspicatus, Lemna minor). The highest denitrification efficiency and the highest load removal rates were recorded in mixed filling material (96% and 1.4 mg NO3 −·dm3·d−1 forWG:BWCH; 85% and 1.2 mg NO3 −·dm3·d−1 forWG:SWCH). Denitrification bioreactors with mixed woodchip filling material present a promising, cheap, and extensive technology for the treatment of agricultural field run-offs.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20801 - Environmental biotechnology
Result continuities
Project
<a href="/en/project/QJ1520280" target="_blank" >QJ1520280: Sustainable technology of nitrogen removal from farmland drainage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Science of the Total Environment
ISSN
0048-9697
e-ISSN
1879-1026
Volume of the periodical
neuveden
Issue of the periodical within the volume
647
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
7
Pages from-to
888-894
UT code for WoS article
000447090400089
EID of the result in the Scopus database
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