Effect of Zinc and Copper on Anaerobic Stabilization of Sewage Sludge

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43913650" target="_blank" >RIV/62156489:43210/18:43913650 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.11118/actaun201866020357" target="_blank" >https://doi.org/10.11118/actaun201866020357</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.11118/actaun201866020357" target="_blank" >10.11118/actaun201866020357</a>

Result language
angličtina
Original language name
Effect of Zinc and Copper on Anaerobic Stabilization of Sewage Sludge
Original language description
The most frequently found metals in municipal sewage sludge are copper and zinc. The aim of this study was to the evaluate effect of these metals on anaerobic microorganisms during sewage sludge stabilization. Anaerobic fermentation tests were carried out in 24 batch fermenters with hydraulic retention time 21 days at mesophilic temperature conditions 38 oC +- 0.2 oC. Five different concentrations of metal ionts (100-1000 mg.l-1) were tested. Cumulative biogas and methane production were used as the comparative parameters of inhibition. Hypothesis, which predicted presence of inhibitory effect of zinc and copper on anaerobic microorganisms, mainly on methanogenic Archaea, was confirmed. The lowest concentration of zinc and copper which cause significant inhibition of biogas production was 400 mg Zn2+.l- and 1000 mg Cu2+.l- 1, which cause reduction of 10.3 +- 2.0 % and 82.8 +- 1.1 %, respectively. The lowest concentration of zinc and copper which lead to significant inhibition of methane production is 400 mg Zn2+.l- and 600 mg Cu2+.l- 1, which caused to reduction of 16.1 +- 3.2 % and 17.4 +- 2.2 %, respectively. The reduction in methane production is higher than in biogas production.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
40500 - Other agricultural sciences

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
ISSN
1211-8516
e-ISSN
—
Volume of the periodical
66
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
7
Pages from-to
357-363
UT code for WoS article
—
EID of the result in the Scopus database
2-s2.0-85047651320

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