Advanced

Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano

Alvarez, Rene LU and Lidén, Gunnar LU (2008) In Waste Management 28(10). p.1933-1940
Abstract
Quinoa stalk (Chenopodium quinoa Willd.) from agricultural crop residue, totora (Schoenoplectus tatora) and o-macrophytes (aquatic flora) from Lake Titicaca (on the Bolivian Altiplano) were studied in a wet anaerobic co-digestion process together with manure front llama, cow and sheep. Anaerobic semi-continuous experiments were performed in (10) 2-1 reactors at a temperature of 25 degrees C with 30 days of hydraulic retention time (HRT) and ail organic loading rate (OLR) of 1.8 kg VS m(-3) d(-1). Totora was found to be the best co-substrate. In mixture ratios of 1:1 (VS basis), it increased the biogas productivity by 130% for llama manure, 60% for cow manure, and 40% for sheep manure. It was possible to use up to 58% (VS basis) of totora... (More)
Quinoa stalk (Chenopodium quinoa Willd.) from agricultural crop residue, totora (Schoenoplectus tatora) and o-macrophytes (aquatic flora) from Lake Titicaca (on the Bolivian Altiplano) were studied in a wet anaerobic co-digestion process together with manure front llama, cow and sheep. Anaerobic semi-continuous experiments were performed in (10) 2-1 reactors at a temperature of 25 degrees C with 30 days of hydraulic retention time (HRT) and ail organic loading rate (OLR) of 1.8 kg VS m(-3) d(-1). Totora was found to be the best co-substrate. In mixture ratios of 1:1 (VS basis), it increased the biogas productivity by 130% for llama manure, 60% for cow manure, and 40% for sheep manure. It was possible to use up to 58% (VS basis) of totora in the substrate. Higher concentrations (including pure totora) could not be digested, as that caused acidification problems similar to those caused by other lignocellulosic materials. When quinoa and o-macrophytes were used as co-substrates, the increase in biogas productivity was slightly less. However, these co-substrates did not cause any operational problems. An additional advantage of quinoa and o-macrophytes was that they could be used in any proportion (even in pure form) without causing any destabilization problems in the anaerobic digestion process. (C) 2007 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Waste Management
volume
28
issue
10
pages
1933 - 1940
publisher
Elsevier
external identifiers
  • wos:000258909800024
  • scopus:48049089188
ISSN
1879-2456
DOI
10.1016/j.wasman.2007.11.002
language
English
LU publication?
yes
id
f6e6eeed-04f8-4c2d-b430-362b34f5e64f (old id 1247148)
date added to LUP
2008-11-20 09:02:33
date last changed
2017-07-30 03:56:28
@article{f6e6eeed-04f8-4c2d-b430-362b34f5e64f,
  abstract     = {Quinoa stalk (Chenopodium quinoa Willd.) from agricultural crop residue, totora (Schoenoplectus tatora) and o-macrophytes (aquatic flora) from Lake Titicaca (on the Bolivian Altiplano) were studied in a wet anaerobic co-digestion process together with manure front llama, cow and sheep. Anaerobic semi-continuous experiments were performed in (10) 2-1 reactors at a temperature of 25 degrees C with 30 days of hydraulic retention time (HRT) and ail organic loading rate (OLR) of 1.8 kg VS m(-3) d(-1). Totora was found to be the best co-substrate. In mixture ratios of 1:1 (VS basis), it increased the biogas productivity by 130% for llama manure, 60% for cow manure, and 40% for sheep manure. It was possible to use up to 58% (VS basis) of totora in the substrate. Higher concentrations (including pure totora) could not be digested, as that caused acidification problems similar to those caused by other lignocellulosic materials. When quinoa and o-macrophytes were used as co-substrates, the increase in biogas productivity was slightly less. However, these co-substrates did not cause any operational problems. An additional advantage of quinoa and o-macrophytes was that they could be used in any proportion (even in pure form) without causing any destabilization problems in the anaerobic digestion process. (C) 2007 Elsevier Ltd. All rights reserved.},
  author       = {Alvarez, Rene and Lidén, Gunnar},
  issn         = {1879-2456},
  language     = {eng},
  number       = {10},
  pages        = {1933--1940},
  publisher    = {Elsevier},
  series       = {Waste Management},
  title        = {Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano},
  url          = {http://dx.doi.org/10.1016/j.wasman.2007.11.002},
  volume       = {28},
  year         = {2008},
}