High-solids semi-continuous anaerobic digestion of corn silage in bag-type digester

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F18%3A10235946" target="_blank" >RIV/61989100:27710/18:10235946 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1515/gps-2017-0017" target="_blank" >http://dx.doi.org/10.1515/gps-2017-0017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/gps-2017-0017" target="_blank" >10.1515/gps-2017-0017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

High-solids semi-continuous anaerobic digestion of corn silage in bag-type digester

Popis výsledku v původním jazyce

The aim of this paper is to discuss the usability of a newly designed partially stirred horizontal anaerobic bioreactor made from triple layer bag material Sioen B6070 and heated by circulating hot air. For verification of the possibility of processing typical agricultural fibrous substrate at relatively high solids content in this type of reactor, the semi-continuous mesophilic (40+-3oC) anaerobic digestion of corn silage of KWS Atletico cultivar was conducted. The reactor with a total volume of 0.7 m3 provided 0.5 m3 working volume. Liquid slurry from the 1st stage of the agricultural biogas station Pustejov II was used as inoculum. The silage dosage was performed so that the reactor reached high methane production intensity at low volumetric production of the digestate for 120 days. The average organic loading reached 4.27 kgVS mMINUS SIGN 3 dMINUS SIGN 1 while the average hydraulic retention time decreased to 85 days. The dry biogas production intensity was 3.42 mN3 mMINUS SIGN 3 dMINUS SIGN 1 with an average methane content of 52.5 vol%. The specific methane production from corn silage was 0.419 mN3 kgVSMINUS SIGN 1. At the end of the test, the digestate contained 13-14 wt% of total solids (TS) and 82-85 wt% of volatile solids in TS. The bag-type digester with hot air heating can be used by small farmers where there is no viable biogas cogeneration.

Název v anglickém jazyce

High-solids semi-continuous anaerobic digestion of corn silage in bag-type digester

Popis výsledku anglicky

The aim of this paper is to discuss the usability of a newly designed partially stirred horizontal anaerobic bioreactor made from triple layer bag material Sioen B6070 and heated by circulating hot air. For verification of the possibility of processing typical agricultural fibrous substrate at relatively high solids content in this type of reactor, the semi-continuous mesophilic (40+-3oC) anaerobic digestion of corn silage of KWS Atletico cultivar was conducted. The reactor with a total volume of 0.7 m3 provided 0.5 m3 working volume. Liquid slurry from the 1st stage of the agricultural biogas station Pustejov II was used as inoculum. The silage dosage was performed so that the reactor reached high methane production intensity at low volumetric production of the digestate for 120 days. The average organic loading reached 4.27 kgVS mMINUS SIGN 3 dMINUS SIGN 1 while the average hydraulic retention time decreased to 85 days. The dry biogas production intensity was 3.42 mN3 mMINUS SIGN 3 dMINUS SIGN 1 with an average methane content of 52.5 vol%. The specific methane production from corn silage was 0.419 mN3 kgVSMINUS SIGN 1. At the end of the test, the digestate contained 13-14 wt% of total solids (TS) and 82-85 wt% of volatile solids in TS. The bag-type digester with hot air heating can be used by small farmers where there is no viable biogas cogeneration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

<a href="/cs/project/LO1208" target="_blank" >LO1208: Teoretické aspekty energetického zpracování odpadů a ochrany prostředí před negativními dopady</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Green processing and synthesis

ISSN

2191-9542

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

268-276

Kód UT WoS článku

000433918000012

EID výsledku v databázi Scopus

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