Characteristics of input materials and its influence on the operation of the biogas plant

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F17%3A43912472" target="_blank" >RIV/62156489:43210/17:43912472 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/17:43912472

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

Characteristics of input materials and its influence on the operation of the biogas plant

Popis výsledku v původním jazyce

Detailed monitoring of input material quality is underestimated at biogas plants. However, dry matter and organic dry matter content of material are changeable and have considerable influence on organic loading rate, biogas and methane production and thus on financial balance of biogas plant. The aim of this study is to monitor dry matter and organic dry matter content of input materials, organic loading rate, biogas quality and quantity at chosen agriculture biogas plant, which processes maize silage and pig manure, over long-term period (26 weeks). Samples of raw maize silage and liquid pig manure were collected weekly. Hypothesis predicted changeability of input materiál characteristics and its influence on biogas quality and quantity and on organic loading rate is confirmed. Determined dry matter content of maize silage ranges from 31.58 to 41.55% and pig slurry reaches dry matter content from 0.95 to 3.49%. Determined organic dry matter content of maize silage ranged from 95.47 to 97.15% of dry matter (30.4539.86% organic dry matter). Pig slurry reaches organic dry matter content from 60.32% to 81.87% of dry matter (0.572.6% organic dry matter). Based on real organic dry matter content of input material and information from operating diaries, organic loading rate is determined. Theoretical organic loading rate is calculated with assumed organic dry matter (32% maize silage and 5.5% pig manure). Confirmation of determined and theoretical organic loading rate shows that monitored biogas plant is usually overloaded. Higher organic loading rate does not lead to an increase of biogas and methane production, but rather to its reduction. So overloading represent wasting of input material and cause lower biogas production and quality which have negative influence on cash flow. This study is unique because of long-term monitoring of input material characteristics which are compared with calculated data.

Název v anglickém jazyce

Characteristics of input materials and its influence on the operation of the biogas plant

Popis výsledku anglicky

Detailed monitoring of input material quality is underestimated at biogas plants. However, dry matter and organic dry matter content of material are changeable and have considerable influence on organic loading rate, biogas and methane production and thus on financial balance of biogas plant. The aim of this study is to monitor dry matter and organic dry matter content of input materials, organic loading rate, biogas quality and quantity at chosen agriculture biogas plant, which processes maize silage and pig manure, over long-term period (26 weeks). Samples of raw maize silage and liquid pig manure were collected weekly. Hypothesis predicted changeability of input materiál characteristics and its influence on biogas quality and quantity and on organic loading rate is confirmed. Determined dry matter content of maize silage ranges from 31.58 to 41.55% and pig slurry reaches dry matter content from 0.95 to 3.49%. Determined organic dry matter content of maize silage ranged from 95.47 to 97.15% of dry matter (30.4539.86% organic dry matter). Pig slurry reaches organic dry matter content from 60.32% to 81.87% of dry matter (0.572.6% organic dry matter). Based on real organic dry matter content of input material and information from operating diaries, organic loading rate is determined. Theoretical organic loading rate is calculated with assumed organic dry matter (32% maize silage and 5.5% pig manure). Confirmation of determined and theoretical organic loading rate shows that monitored biogas plant is usually overloaded. Higher organic loading rate does not lead to an increase of biogas and methane production, but rather to its reduction. So overloading represent wasting of input material and cause lower biogas production and quality which have negative influence on cash flow. This study is unique because of long-term monitoring of input material characteristics which are compared with calculated data.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

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

—

e-ISSN

neuvedeno

Počet stran výsledku

5

Strana od-do

768-772

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

000440194500138