Effect of bronopol on anaerobic stabilization of sewage sludge and biogas production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F17%3A43912473" target="_blank" >RIV/62156489:43210/17:43912473 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of bronopol on anaerobic stabilization of sewage sludge and biogas production

Popis výsledku v původním jazyce

Antimicrobial preservatives (as a bronopol) are widely used in cosmetics and toiletries to prevent the spoilage of products due to microbial contamination than can be presented in wastewaters and in sewage sludge and may inhibit the process of sludge anaerobic stabilization. The aim of this study is to specify inhibitory effect of bronopol on anaerobic stabilization of sewage sludge and biogas production. Anaerobic fermentation test was carried out in 24 batch fermenters (the volume of 5 dm3) for 21 days at 38 +- 0,2 oC. Bronopol was used as toxic substance in 7 different concentrations; 25, 50, 75, 100, 125, 150 and 175 mg/l. The quantity and quality of produced biogas were monitored during hydraulic retention time. Hypothesis, which predicts presence of inhibitory effect of bronopol on anaerobic microorganisms, mainly on methanogenic Archaea, was confirmed. The lowest concentration of bronopol which causes significant inhibition of biogas production is 75 mg/l. This concentration leads to reduction of 5.8 +- 2.3% in the biogas yield. The lowest concentration of bronopol which causes significant inhibition of methane production is 75 mg/l. The reduction in biogas and methane production after addition of the highest bronopol concentration (175mg/l) is 51,5 +- 0,9% and 76,9 +- 2,9%, respectively. Which means that methanogens are more inhibited by bronopol than other groups of anaerobic microorganism.

Název v anglickém jazyce

Effect of bronopol on anaerobic stabilization of sewage sludge and biogas production

Popis výsledku anglicky

Antimicrobial preservatives (as a bronopol) are widely used in cosmetics and toiletries to prevent the spoilage of products due to microbial contamination than can be presented in wastewaters and in sewage sludge and may inhibit the process of sludge anaerobic stabilization. The aim of this study is to specify inhibitory effect of bronopol on anaerobic stabilization of sewage sludge and biogas production. Anaerobic fermentation test was carried out in 24 batch fermenters (the volume of 5 dm3) for 21 days at 38 +- 0,2 oC. Bronopol was used as toxic substance in 7 different concentrations; 25, 50, 75, 100, 125, 150 and 175 mg/l. The quantity and quality of produced biogas were monitored during hydraulic retention time. Hypothesis, which predicts presence of inhibitory effect of bronopol on anaerobic microorganisms, mainly on methanogenic Archaea, was confirmed. The lowest concentration of bronopol which causes significant inhibition of biogas production is 75 mg/l. This concentration leads to reduction of 5.8 +- 2.3% in the biogas yield. The lowest concentration of bronopol which causes significant inhibition of methane production is 75 mg/l. The reduction in biogas and methane production after addition of the highest bronopol concentration (175mg/l) is 51,5 +- 0,9% and 76,9 +- 2,9%, respectively. Which means that methanogens are more inhibited by bronopol than other groups of anaerobic microorganism.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

MendelNet 2017: Proceedings of International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

773-778

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

8. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000440194500139