Effects of Zinc on Anaerobic Fermentation of Sewage Sludge and Biogas Production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F16%3A43910216" target="_blank" >RIV/62156489:43210/16:43910216 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2016/mnet_2016_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2016/mnet_2016_full.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effects of Zinc on Anaerobic Fermentation of Sewage Sludge and Biogas Production

Popis výsledku v původním jazyce

Toxic metals can be present in municipal wastewaters sludge and may inhibit the process of anaerobic fermentation. According to literature zinc is one from toxic metals with the strongest inhibitory effect. Therefore, this article deals with effect of zinc on anaerobic fermentation of sewage sludge and biogas production. Inhibitory effect of zinc on anaerobic stabilization of sewage sludge was studied using batch anaerobic fermenters at temperature 42 oC +- 1 oC. Hydraulic retention time was 21 days. As toxic substance was used zinc chloride (ZnCl2) in three different amounts: 75, 312 and 625 mg/l which represent 12, 50 and 100 mg/l Zn, respectively. Biogas and methane yield after 21 days hydraulic retention time were used as comparative parameters of inhibitory effect of zinc. There were no significant differences between biogas yields from all tested concentrations of zinc and blank. There was only one significant difference between methane yields from tested concentrations of zinc and blank. The reduction of 6.3 +- 2.5% in the cumulative methane production can be observed after addition of 100 mg/l Zn (625 mg/l ZnCl2).

Název v anglickém jazyce

Effects of Zinc on Anaerobic Fermentation of Sewage Sludge and Biogas Production

Popis výsledku anglicky

Toxic metals can be present in municipal wastewaters sludge and may inhibit the process of anaerobic fermentation. According to literature zinc is one from toxic metals with the strongest inhibitory effect. Therefore, this article deals with effect of zinc on anaerobic fermentation of sewage sludge and biogas production. Inhibitory effect of zinc on anaerobic stabilization of sewage sludge was studied using batch anaerobic fermenters at temperature 42 oC +- 1 oC. Hydraulic retention time was 21 days. As toxic substance was used zinc chloride (ZnCl2) in three different amounts: 75, 312 and 625 mg/l which represent 12, 50 and 100 mg/l Zn, respectively. Biogas and methane yield after 21 days hydraulic retention time were used as comparative parameters of inhibitory effect of zinc. There were no significant differences between biogas yields from all tested concentrations of zinc and blank. There was only one significant difference between methane yields from tested concentrations of zinc and blank. The reduction of 6.3 +- 2.5% in the cumulative methane production can be observed after addition of 100 mg/l Zn (625 mg/l ZnCl2).

Druh

D - Stať ve sborníku

CEP obor

GB - Zemědělské stroje a stavby

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

MendelNet 2016: Proceedings of International PhD Students Conference

ISBN

978-80-7509-443-8

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

853-857

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

9. 11. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000392968500153