Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy

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Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy. / Case, Sean; Jensen, Lars Stoumann.

In: Environmental Technology (United Kingdom), Vol. 40, No. 6, 2019, p. 701-715.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Case, S & Jensen, LS 2019, 'Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy', Environmental Technology (United Kingdom), vol. 40, no. 6, pp. 701-715. https://doi.org/10.1080/09593330.2017.1404136

APA

Case, S., & Jensen, L. S. (2019). Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy. Environmental Technology (United Kingdom), 40(6), 701-715. https://doi.org/10.1080/09593330.2017.1404136

Vancouver

Case S, Jensen LS. Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy. Environmental Technology (United Kingdom). 2019;40(6):701-715. https://doi.org/10.1080/09593330.2017.1404136

Author

Case, Sean ; Jensen, Lars Stoumann. / Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy. In: Environmental Technology (United Kingdom). 2019 ; Vol. 40, No. 6. pp. 701-715.

Bibtex

@article{770cfcbdc6884685b00d75ef0093a1dc,
title = "Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy",
abstract = "The drive to a more circular economy has created increasing interest in recycling organic wastes as bio-based fertilizers. This study screened 15 different manures, digestates, sludges, composts, industry by-products, and struvites. Nitrogen (N) and phosphorous (P) release was compared following addition to soil. Three waste materials were then ‘upgraded’ using heating and pressure (105°C at 220 kPa), alkalinization (pH 10), or sonification to modify N and P release properties, and compared in a second soil incubation. Generally, maximum N release was negatively correlated with the CN ratio of the material (r = −0.6). Composted, dried, or raw organic waste materials released less N (mean of 10.8 ± 0.5{\%}, 45.3 ± 7.2{\%}, and 47.4 ± 3.2{\%} of total N added respectively) than digestates, industry-derived organic fertilizer products, and struvites (mean of 58.2 ± 2.8{\%}, 77.7 ± 6.0{\%}, and 100.0 ± 13.1{\%} of total N added respectively). No analyzed chemical property or processing type could explain differences in P release. No single upgrading treatment consistently increased N or P release. However, for one raw biosolid, heating at a low temperature (105°C) with pressure did increase N release as a percentage of total N added to soil from 30{\%} to 43{\%}.",
keywords = "biosolid, Compost, digestate, manure, N mineralization, P release, struvite",
author = "Sean Case and Jensen, {Lars Stoumann}",
year = "2019",
doi = "10.1080/09593330.2017.1404136",
language = "English",
volume = "40",
pages = "701--715",
journal = "Environmental Technology",
issn = "0959-3330",
publisher = "Taylor & Francis",
number = "6",

}

RIS

TY - JOUR

T1 - Nitrogen and phosphorus release from organic wastes and suitability as bio-based fertilizers in a circular economy

AU - Case, Sean

AU - Jensen, Lars Stoumann

PY - 2019

Y1 - 2019

N2 - The drive to a more circular economy has created increasing interest in recycling organic wastes as bio-based fertilizers. This study screened 15 different manures, digestates, sludges, composts, industry by-products, and struvites. Nitrogen (N) and phosphorous (P) release was compared following addition to soil. Three waste materials were then ‘upgraded’ using heating and pressure (105°C at 220 kPa), alkalinization (pH 10), or sonification to modify N and P release properties, and compared in a second soil incubation. Generally, maximum N release was negatively correlated with the CN ratio of the material (r = −0.6). Composted, dried, or raw organic waste materials released less N (mean of 10.8 ± 0.5%, 45.3 ± 7.2%, and 47.4 ± 3.2% of total N added respectively) than digestates, industry-derived organic fertilizer products, and struvites (mean of 58.2 ± 2.8%, 77.7 ± 6.0%, and 100.0 ± 13.1% of total N added respectively). No analyzed chemical property or processing type could explain differences in P release. No single upgrading treatment consistently increased N or P release. However, for one raw biosolid, heating at a low temperature (105°C) with pressure did increase N release as a percentage of total N added to soil from 30% to 43%.

AB - The drive to a more circular economy has created increasing interest in recycling organic wastes as bio-based fertilizers. This study screened 15 different manures, digestates, sludges, composts, industry by-products, and struvites. Nitrogen (N) and phosphorous (P) release was compared following addition to soil. Three waste materials were then ‘upgraded’ using heating and pressure (105°C at 220 kPa), alkalinization (pH 10), or sonification to modify N and P release properties, and compared in a second soil incubation. Generally, maximum N release was negatively correlated with the CN ratio of the material (r = −0.6). Composted, dried, or raw organic waste materials released less N (mean of 10.8 ± 0.5%, 45.3 ± 7.2%, and 47.4 ± 3.2% of total N added respectively) than digestates, industry-derived organic fertilizer products, and struvites (mean of 58.2 ± 2.8%, 77.7 ± 6.0%, and 100.0 ± 13.1% of total N added respectively). No analyzed chemical property or processing type could explain differences in P release. No single upgrading treatment consistently increased N or P release. However, for one raw biosolid, heating at a low temperature (105°C) with pressure did increase N release as a percentage of total N added to soil from 30% to 43%.

KW - biosolid

KW - Compost

KW - digestate

KW - manure

KW - N mineralization

KW - P release

KW - struvite

U2 - 10.1080/09593330.2017.1404136

DO - 10.1080/09593330.2017.1404136

M3 - Journal article

C2 - 29125054

AN - SCOPUS:85034781917

VL - 40

SP - 701

EP - 715

JO - Environmental Technology

JF - Environmental Technology

SN - 0959-3330

IS - 6

ER -

ID: 193508916