Evaluation of straw as a biofilm carrier in the methanogenic stage of two-stage anaerobic digestion of crop residues
(2002) In Bioresource Technology 85(1). p.51-56- Abstract
- Straw was evaluated as a biofilm carrier in the methanogenic stage of the two-stage anaerobic digestion of crop residues. Three reactor configurations were studied, a straw-packed-bed reactor, a glass packed-bed reactor and a reactor containing suspended plastic carriers. The reactor with the packed straw bed showed the best results. It had the highest methane production, 5.4 11(-1) d(-1), and the chemical oxygen demand (COD) removal ranged from 73-50% at organic loading rates from 2.4-25 g COD 1(-1) d(-1). The degradation pattern of volatile fatty acids showed that the degradation of propionate and longer-chain fatty acids was limiting at higher organic loading rates. A stable effluent pH showed that the packed-bed reactors had good... (More)
- Straw was evaluated as a biofilm carrier in the methanogenic stage of the two-stage anaerobic digestion of crop residues. Three reactor configurations were studied, a straw-packed-bed reactor, a glass packed-bed reactor and a reactor containing suspended plastic carriers. The reactor with the packed straw bed showed the best results. It had the highest methane production, 5.4 11(-1) d(-1), and the chemical oxygen demand (COD) removal ranged from 73-50% at organic loading rates from 2.4-25 g COD 1(-1) d(-1). The degradation pattern of volatile fatty acids showed that the degradation of propionate and longer-chain fatty acids was limiting at higher organic loading rates. A stable effluent pH showed that the packed-bed reactors had good ability to withstand the variations in load and volatile fatty acid concentrations that can occur in the two-stage process. The conclusion is that straw would work very well in the intended application. A further benefit is that straw is a common agricultural waste product and requires only limited resources concerning handling and cost. (C) 2002 Elsevier Science Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/333879
- author
- Andersson, Jonatan LU and Björnsson, Lovisa LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- biogas, two-stage anaerobic digestion, biofilm, crop residues, straw
- in
- Bioresource Technology
- volume
- 85
- issue
- 1
- pages
- 51 - 56
- publisher
- Elsevier
- external identifiers
-
- pmid:12146643
- wos:000176815300009
- scopus:0036014885
- ISSN
- 1873-2976
- DOI
- 10.1016/S0960-8524(02)00071-8
- language
- English
- LU publication?
- yes
- id
- 116117ee-4002-4cef-a280-df38c4aef2d4 (old id 333879)
- date added to LUP
- 2016-04-01 16:21:10
- date last changed
- 2022-04-07 07:36:10
@article{116117ee-4002-4cef-a280-df38c4aef2d4,
abstract = {{Straw was evaluated as a biofilm carrier in the methanogenic stage of the two-stage anaerobic digestion of crop residues. Three reactor configurations were studied, a straw-packed-bed reactor, a glass packed-bed reactor and a reactor containing suspended plastic carriers. The reactor with the packed straw bed showed the best results. It had the highest methane production, 5.4 11(-1) d(-1), and the chemical oxygen demand (COD) removal ranged from 73-50% at organic loading rates from 2.4-25 g COD 1(-1) d(-1). The degradation pattern of volatile fatty acids showed that the degradation of propionate and longer-chain fatty acids was limiting at higher organic loading rates. A stable effluent pH showed that the packed-bed reactors had good ability to withstand the variations in load and volatile fatty acid concentrations that can occur in the two-stage process. The conclusion is that straw would work very well in the intended application. A further benefit is that straw is a common agricultural waste product and requires only limited resources concerning handling and cost. (C) 2002 Elsevier Science Ltd. All rights reserved.}},
author = {{Andersson, Jonatan and Björnsson, Lovisa}},
issn = {{1873-2976}},
keywords = {{biogas; two-stage anaerobic digestion; biofilm; crop residues; straw}},
language = {{eng}},
number = {{1}},
pages = {{51--56}},
publisher = {{Elsevier}},
series = {{Bioresource Technology}},
title = {{Evaluation of straw as a biofilm carrier in the methanogenic stage of two-stage anaerobic digestion of crop residues}},
url = {{http://dx.doi.org/10.1016/S0960-8524(02)00071-8}},
doi = {{10.1016/S0960-8524(02)00071-8}},
volume = {{85}},
year = {{2002}},
}