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

doi:https://doi.org/10.1016/j.wasman.2007.11.002

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

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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 from llama, cow and sheep. Anaerobic semi-continuous experiments were performed in (10) 2-l reactors at a temperature of 25 deg. C with 30 days of hydraulic retention time (HRT) and an organic loading rate (OLR) of 1.8 kg VS m{sup -3} d{sup -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 themore » anaerobic digestion process.« less

Authors:

Alvarez, Rene ^[1]; Liden, Gunnar ^[2]

IIDEPROQ, UMSA, Plaza del Obelisco 1175, La Paz (Bolivia)
Department of Chemical Engineering, Lund University, P.O. Box 124, 221 00 Lund (Sweden)

Publication Date:: 2008-07-01

OSTI Identifier:: 21153938

Resource Type:: Journal Article

Journal Name:: Waste Management

Additional Journal Information:: Journal Volume: 28; Journal Issue: 10; Other Information: DOI: 10.1016/j.wasman.2007.11.002; PII: S0956-053X(07)00390-X; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0956-053X

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; ACIDIFICATION; ANAEROBIC DIGESTION; CROPS; DEUTERIUM IONS; L REACTOR; LLAMAS; LOADING RATE; MANURES; METHANE; PRODUCTIVITY; RESIDUES; SHEEP; SUBSTRATES

Citation Formats


                    Alvarez, Rene, and Liden, Gunnar. Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano.  United States: N. p., 2008. 
        Web.  doi:10.1016/j.wasman.2007.11.002.

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                    Alvarez, Rene, & Liden, Gunnar. Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano.  United States.  https://doi.org/10.1016/j.wasman.2007.11.002

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                    Alvarez, Rene, and Liden, Gunnar. Tue .  
        "Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano".  United States.  https://doi.org/10.1016/j.wasman.2007.11.002.

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@article{osti_21153938,

  title        = {Anaerobic co-digestion of aquatic flora and quinoa with manures from Bolivian Altiplano},

  author       = {Alvarez, Rene and Liden, Gunnar},

  abstractNote = {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 from llama, cow and sheep. Anaerobic semi-continuous experiments were performed in (10) 2-l reactors at a temperature of 25 deg. C with 30 days of hydraulic retention time (HRT) and an organic loading rate (OLR) of 1.8 kg VS m{sup -3} d{sup -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.},

  doi          = {10.1016/j.wasman.2007.11.002},

  url          = {https://www.osti.gov/biblio/21153938},
  journal      = {Waste Management},

  issn         = {0956-053X},

  number       = 10,

  volume       = 28,

  place        = {United States},

  year         = {2008},

  month        = {7}

}

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