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The effect of organic loading rate and retention time on hydrogen production from a methanogenic CSTR

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The effect of organic loading rate and retention time on hydrogen production from a methanogenic CSTR. / Pakarinen, O.; Kaparaju, P.; Rintala, J.

julkaisussa: Bioresource Technology, Vuosikerta 102, Nro 19, 10.2011, s. 8952-8957.

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Pakarinen, O. ; Kaparaju, P. ; Rintala, J. / The effect of organic loading rate and retention time on hydrogen production from a methanogenic CSTR. Julkaisussa: Bioresource Technology. 2011 ; Vuosikerta 102, Nro 19. Sivut 8952-8957.

Bibtex - Lataa

@article{7460befcf75f48e68b846b3f674373ad,
title = "The effect of organic loading rate and retention time on hydrogen production from a methanogenic CSTR",
abstract = "The possibility of shifting a methanogenic process for hydrogen production by changing the process parameters viz., organic loading rate (OLR) and hydraulic retention time (HRT) was evaluated. At first, two parallel semi-continuously fed continuously stirred tank reactors (CSTR) were operated as methanogenic reactors (M1 and M2) for 78days. Results showed that a methane yield of 198-218L/kg volatile solids fed (VS fed) was obtained when fed with grass silage at an OLR of 2kgVS/m 3/d and HRT of 30days. After 78days of operation, hydrogen production was induced in M2 by increasing the OLR from 2 to 10kgVS/m 3/d and shortening the HRT from 30 to 6days. The highest H 2 yield of 42L/kgVS fed was obtained with a maximum H 2 content of 24{\%}. The present results thus demonstrate that methanogenic process can be shifted towards hydrogen production by increasing the OLR and decreasing HRT.",
keywords = "Grass silage, Hydrogen, Methane, Shifting, VFA",
author = "O. Pakarinen and P. Kaparaju and J. Rintala",
year = "2011",
month = "10",
doi = "10.1016/j.biortech.2011.07.020",
language = "English",
volume = "102",
pages = "8952--8957",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "ELSEVIER SCI LTD",
number = "19",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - The effect of organic loading rate and retention time on hydrogen production from a methanogenic CSTR

AU - Pakarinen, O.

AU - Kaparaju, P.

AU - Rintala, J.

PY - 2011/10

Y1 - 2011/10

N2 - The possibility of shifting a methanogenic process for hydrogen production by changing the process parameters viz., organic loading rate (OLR) and hydraulic retention time (HRT) was evaluated. At first, two parallel semi-continuously fed continuously stirred tank reactors (CSTR) were operated as methanogenic reactors (M1 and M2) for 78days. Results showed that a methane yield of 198-218L/kg volatile solids fed (VS fed) was obtained when fed with grass silage at an OLR of 2kgVS/m 3/d and HRT of 30days. After 78days of operation, hydrogen production was induced in M2 by increasing the OLR from 2 to 10kgVS/m 3/d and shortening the HRT from 30 to 6days. The highest H 2 yield of 42L/kgVS fed was obtained with a maximum H 2 content of 24%. The present results thus demonstrate that methanogenic process can be shifted towards hydrogen production by increasing the OLR and decreasing HRT.

AB - The possibility of shifting a methanogenic process for hydrogen production by changing the process parameters viz., organic loading rate (OLR) and hydraulic retention time (HRT) was evaluated. At first, two parallel semi-continuously fed continuously stirred tank reactors (CSTR) were operated as methanogenic reactors (M1 and M2) for 78days. Results showed that a methane yield of 198-218L/kg volatile solids fed (VS fed) was obtained when fed with grass silage at an OLR of 2kgVS/m 3/d and HRT of 30days. After 78days of operation, hydrogen production was induced in M2 by increasing the OLR from 2 to 10kgVS/m 3/d and shortening the HRT from 30 to 6days. The highest H 2 yield of 42L/kgVS fed was obtained with a maximum H 2 content of 24%. The present results thus demonstrate that methanogenic process can be shifted towards hydrogen production by increasing the OLR and decreasing HRT.

KW - Grass silage

KW - Hydrogen

KW - Methane

KW - Shifting

KW - VFA

U2 - 10.1016/j.biortech.2011.07.020

DO - 10.1016/j.biortech.2011.07.020

M3 - Article

VL - 102

SP - 8952

EP - 8957

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

IS - 19

ER -