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Agronomic characteristics of five different urban waste digestates

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Agronomic characteristics of five different urban waste digestates. / Tampio, Elina; Salo, Tapio; Rintala, Jukka.

In: Journal of Environmental Management, Vol. 169, 15.03.2016, p. 293-302.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Tampio, E, Salo, T & Rintala, J 2016, 'Agronomic characteristics of five different urban waste digestates', Journal of Environmental Management, vol. 169, pp. 293-302. https://doi.org/10.1016/j.jenvman.2016.01.001

APA

Vancouver

Tampio E, Salo T, Rintala J. Agronomic characteristics of five different urban waste digestates. Journal of Environmental Management. 2016 Mar 15;169:293-302. https://doi.org/10.1016/j.jenvman.2016.01.001

Author

Tampio, Elina ; Salo, Tapio ; Rintala, Jukka. / Agronomic characteristics of five different urban waste digestates. In: Journal of Environmental Management. 2016 ; Vol. 169. pp. 293-302.

Bibtex - Download

@article{af2c4182fd964943981c498c4df2ec10,
title = "Agronomic characteristics of five different urban waste digestates",
abstract = "The use of digestate in agriculture is an efficient way to recycle materials and to decrease the use of mineral fertilizers. The agronomic characteristics of the digestates can promote plant growth and soil properties after digestate fertilization but also harmful effects can arise due to digestate quality, e.g. pH, organic matter and heavy metal content. The objective of this study was to evaluate the differences and similarities in agronomic characteristics and the value of five urban waste digestates from different biogas plants treating either food waste, organic fraction of organic solid waste or a mixture of waste-activated sludge and vegetable waste. The digestate agronomic characteristics were studied with chemical analyses and the availability of nutrients was also assessed with growth experiments and soil mineralization tests. All studied urban digestates produced 5-30{\%} higher ryegrass yields compared to a control mineral fertilizer with a similar inorganic nitrogen concentration, while the feedstock source affected the agronomic value. Food waste and organic fraction of municipal solid waste digestates were characterized by high agronomic value due to the availability of nutrients and low heavy metal load. Waste-activated sludge as part of the feedstock mixture, however, increased the heavy metal content and reduced nitrogen availability to the plant, thus reducing the fertilizer value of the digestate.",
keywords = "Anaerobic digestion, Digestate, Fertilizer value, Heavy metals, Nutrients, Plant growth",
author = "Elina Tampio and Tapio Salo and Jukka Rintala",
year = "2016",
month = "3",
day = "15",
doi = "10.1016/j.jenvman.2016.01.001",
language = "English",
volume = "169",
pages = "293--302",
journal = "Journal of Environmental Management",
issn = "0301-4797",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Agronomic characteristics of five different urban waste digestates

AU - Tampio, Elina

AU - Salo, Tapio

AU - Rintala, Jukka

PY - 2016/3/15

Y1 - 2016/3/15

N2 - The use of digestate in agriculture is an efficient way to recycle materials and to decrease the use of mineral fertilizers. The agronomic characteristics of the digestates can promote plant growth and soil properties after digestate fertilization but also harmful effects can arise due to digestate quality, e.g. pH, organic matter and heavy metal content. The objective of this study was to evaluate the differences and similarities in agronomic characteristics and the value of five urban waste digestates from different biogas plants treating either food waste, organic fraction of organic solid waste or a mixture of waste-activated sludge and vegetable waste. The digestate agronomic characteristics were studied with chemical analyses and the availability of nutrients was also assessed with growth experiments and soil mineralization tests. All studied urban digestates produced 5-30% higher ryegrass yields compared to a control mineral fertilizer with a similar inorganic nitrogen concentration, while the feedstock source affected the agronomic value. Food waste and organic fraction of municipal solid waste digestates were characterized by high agronomic value due to the availability of nutrients and low heavy metal load. Waste-activated sludge as part of the feedstock mixture, however, increased the heavy metal content and reduced nitrogen availability to the plant, thus reducing the fertilizer value of the digestate.

AB - The use of digestate in agriculture is an efficient way to recycle materials and to decrease the use of mineral fertilizers. The agronomic characteristics of the digestates can promote plant growth and soil properties after digestate fertilization but also harmful effects can arise due to digestate quality, e.g. pH, organic matter and heavy metal content. The objective of this study was to evaluate the differences and similarities in agronomic characteristics and the value of five urban waste digestates from different biogas plants treating either food waste, organic fraction of organic solid waste or a mixture of waste-activated sludge and vegetable waste. The digestate agronomic characteristics were studied with chemical analyses and the availability of nutrients was also assessed with growth experiments and soil mineralization tests. All studied urban digestates produced 5-30% higher ryegrass yields compared to a control mineral fertilizer with a similar inorganic nitrogen concentration, while the feedstock source affected the agronomic value. Food waste and organic fraction of municipal solid waste digestates were characterized by high agronomic value due to the availability of nutrients and low heavy metal load. Waste-activated sludge as part of the feedstock mixture, however, increased the heavy metal content and reduced nitrogen availability to the plant, thus reducing the fertilizer value of the digestate.

KW - Anaerobic digestion

KW - Digestate

KW - Fertilizer value

KW - Heavy metals

KW - Nutrients

KW - Plant growth

U2 - 10.1016/j.jenvman.2016.01.001

DO - 10.1016/j.jenvman.2016.01.001

M3 - Article

VL - 169

SP - 293

EP - 302

JO - Journal of Environmental Management

JF - Journal of Environmental Management

SN - 0301-4797

ER -