Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions
Many intensively farmed soils show high phosphorus (P) contents compared to the thresholds required for agricultural production; 0.084 Mt of P year<sup>−1</sup> is leaving the European terrestrial system. This paper focuses mainly on non-point flows of P and provides an overview of the m...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/12/2938 |
| _version_ | 1797461907374866432 |
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| author | Nicolò Auteri Filippo Saiano Riccardo Scalenghe |
| author_facet | Nicolò Auteri Filippo Saiano Riccardo Scalenghe |
| author_sort | Nicolò Auteri |
| collection | DOAJ |
| description | Many intensively farmed soils show high phosphorus (P) contents compared to the thresholds required for agricultural production; 0.084 Mt of P year<sup>−1</sup> is leaving the European terrestrial system. This paper focuses mainly on non-point flows of P and provides an overview of the most promising and sustainable solutions for P recycling, centred on waste materials from agriculture. Given the global shortage of the primary resource of P, its management is critical for its efficient use. Nowadays, wastage and loss at every stage of the P cycle raise concerns about future supplies and especially about the resulting environmental problems, such as the eutrophication of surface water bodies and the reduction of biodiversity. Recovering P costs more than EUR 640 per tonne depending on the type of technique used. The opportunity for P recovery with green and sustainable technology is, therefore, a great challenge for the next years. Waste materials or by-products of agricultural processing have been considered ecologically safe, low-cost, and highly selective with high pollutant adsorption capacities, which would enable sustainable P recovery, both environmentally and economically. A realistic threshold for considering the reuse of P sustainably at the farm level is EUR 320 per tonne. |
| first_indexed | 2024-03-09T17:26:06Z |
| format | Article |
| id | doaj.art-818e58efd69943e4a10e8e4c51f36d8c |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T17:26:06Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-818e58efd69943e4a10e8e4c51f36d8c2023-11-24T12:43:38ZengMDPI AGAgronomy2073-43952022-11-011212293810.3390/agronomy12122938Recycling Phosphorus from Agricultural Streams: Grey and Green SolutionsNicolò Auteri0Filippo Saiano1Riccardo Scalenghe2Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, ItalyDipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, ItalyDipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, ItalyMany intensively farmed soils show high phosphorus (P) contents compared to the thresholds required for agricultural production; 0.084 Mt of P year<sup>−1</sup> is leaving the European terrestrial system. This paper focuses mainly on non-point flows of P and provides an overview of the most promising and sustainable solutions for P recycling, centred on waste materials from agriculture. Given the global shortage of the primary resource of P, its management is critical for its efficient use. Nowadays, wastage and loss at every stage of the P cycle raise concerns about future supplies and especially about the resulting environmental problems, such as the eutrophication of surface water bodies and the reduction of biodiversity. Recovering P costs more than EUR 640 per tonne depending on the type of technique used. The opportunity for P recovery with green and sustainable technology is, therefore, a great challenge for the next years. Waste materials or by-products of agricultural processing have been considered ecologically safe, low-cost, and highly selective with high pollutant adsorption capacities, which would enable sustainable P recovery, both environmentally and economically. A realistic threshold for considering the reuse of P sustainably at the farm level is EUR 320 per tonne.https://www.mdpi.com/2073-4395/12/12/2938soilfertiliserby-productsurface wateragricultural wastenutrient recovery |
| spellingShingle | Nicolò Auteri Filippo Saiano Riccardo Scalenghe Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions Agronomy soil fertiliser by-product surface water agricultural waste nutrient recovery |
| title | Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions |
| title_full | Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions |
| title_fullStr | Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions |
| title_full_unstemmed | Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions |
| title_short | Recycling Phosphorus from Agricultural Streams: Grey and Green Solutions |
| title_sort | recycling phosphorus from agricultural streams grey and green solutions |
| topic | soil fertiliser by-product surface water agricultural waste nutrient recovery |
| url | https://www.mdpi.com/2073-4395/12/12/2938 |
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