Quantifying nutrient recovery by element flow analysis : Harvest and use of seven marine biomasses to close N and P loops
(2022) In Resources, Conservation and Recycling 178.- Abstract
Anthropogenic consumption of nitrogen (N) and phosphorus (P) has pushed their respective planetary boundaries beyond a safe operating space causing environmental problems, and simultaneously, the depletion of finite mineral P resources is of growing concern. Previous research has found that marine biomass such as kelp, reed and mussels have a high potential for taking up N and P, which could potentially contribute both to alleviating environmental problems and recirculating P from marine environments back to human consumption systems. This paper thus examines these nutrient flows and the extent to which marine biomass can contribute to close the loop. The study utilizes an element flow analysis (EFA) to establish the mapping of N and P... (More)
Anthropogenic consumption of nitrogen (N) and phosphorus (P) has pushed their respective planetary boundaries beyond a safe operating space causing environmental problems, and simultaneously, the depletion of finite mineral P resources is of growing concern. Previous research has found that marine biomass such as kelp, reed and mussels have a high potential for taking up N and P, which could potentially contribute both to alleviating environmental problems and recirculating P from marine environments back to human consumption systems. This paper thus examines these nutrient flows and the extent to which marine biomass can contribute to close the loop. The study utilizes an element flow analysis (EFA) to establish the mapping of N and P flows and explore plausible scenarios of biomass utilisation by 2030 and 2050 for P loop closure in Sweden. The current uptake of P and N through the seven marine biomass cases (mariculture of mussels on both the Swedish east and west coasts, kelp and ascidians and the harvest of wild oysters, beach-cast and reed) contributes to 1.1% and 0.3% respectively of the full loop closure (relative to 2016 loading). Approximately 22% of the total P (and 23% N) uptake (in the biomasses) is currently being used in products, while the rest remains unused. The plausible future scenario for 2050 expects to contribute to around 10% P and 2.8% N loop closure (relative to 2016) if all nutrients in the uptake are used.
(Less)
- author
- Sinha, R. ; Thomas, J. B.E. ; Strand ; Söderqvist, T. ; Stadmark, J. LU ; Franzen, F. ; Ingmansson, I. ; Gröndahl, F. and Hasselström, L.
- publishing date
- 2022-03
- type
- Contribution to journal
- publication status
- published
- keywords
- Blue growth, Circular economy, Element flow analysis, Nitrogen, Nutrient recovery, Phosphorus
- in
- Resources, Conservation and Recycling
- volume
- 178
- article number
- 106031
- publisher
- Elsevier
- external identifiers
-
- scopus:85119441368
- ISSN
- 0921-3449
- DOI
- 10.1016/j.resconrec.2021.106031
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2021 The Author(s)
- id
- 7a99a88d-8cbd-40ab-93ce-b780ff878474
- date added to LUP
- 2024-11-14 13:50:21
- date last changed
- 2024-11-18 07:45:10
@article{7a99a88d-8cbd-40ab-93ce-b780ff878474,
abstract = {{<p>Anthropogenic consumption of nitrogen (N) and phosphorus (P) has pushed their respective planetary boundaries beyond a safe operating space causing environmental problems, and simultaneously, the depletion of finite mineral P resources is of growing concern. Previous research has found that marine biomass such as kelp, reed and mussels have a high potential for taking up N and P, which could potentially contribute both to alleviating environmental problems and recirculating P from marine environments back to human consumption systems. This paper thus examines these nutrient flows and the extent to which marine biomass can contribute to close the loop. The study utilizes an element flow analysis (EFA) to establish the mapping of N and P flows and explore plausible scenarios of biomass utilisation by 2030 and 2050 for P loop closure in Sweden. The current uptake of P and N through the seven marine biomass cases (mariculture of mussels on both the Swedish east and west coasts, kelp and ascidians and the harvest of wild oysters, beach-cast and reed) contributes to 1.1% and 0.3% respectively of the full loop closure (relative to 2016 loading). Approximately 22% of the total P (and 23% N) uptake (in the biomasses) is currently being used in products, while the rest remains unused. The plausible future scenario for 2050 expects to contribute to around 10% P and 2.8% N loop closure (relative to 2016) if all nutrients in the uptake are used.</p>}},
author = {{Sinha, R. and Thomas, J. B.E. and Strand and Söderqvist, T. and Stadmark, J. and Franzen, F. and Ingmansson, I. and Gröndahl, F. and Hasselström, L.}},
issn = {{0921-3449}},
keywords = {{Blue growth; Circular economy; Element flow analysis; Nitrogen; Nutrient recovery; Phosphorus}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Resources, Conservation and Recycling}},
title = {{Quantifying nutrient recovery by element flow analysis : Harvest and use of seven marine biomasses to close N and P loops}},
url = {{http://dx.doi.org/10.1016/j.resconrec.2021.106031}},
doi = {{10.1016/j.resconrec.2021.106031}},
volume = {{178}},
year = {{2022}},
}