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Systematic Review of Dairy Processing Sludge and Secondary STRUBIAS Products Used in Agriculture
- Source :
- Frontiers in Sustainable Food Systems, Frontiers in Sustainable Food Systems, Frontiers Media, 2021, 5, pp.763020. ⟨10.3389/fsufs.2021.763020⟩, Hu, Y, Khomenko, O, Shi, W, Velasco-Sánchez, Á, Ashekuzzaman, S M, Bennegadi-Laurent, N, Daly, K, Fenton, O, Healy, M, Leahy, J J, Sørensen, P, Sommer, S G, Taghizadeh-Toosi, A & Trinsoutrot-Gattin, I 2021, ' Systematic Review of Dairy Processing Sludge and Secondary STRUBIAS Products Used in Agriculture ', Frontiers in Sustainable Food Systems, bind 5, 763020 . https://doi.org/10.3389/fsufs.2021.763020, Frontiers in Sustainable Food Systems, Vol 5 (2021), Frontiers in Sustainable Food Systems 5 (2021), Frontiers in Sustainable Food Systems, 5
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- International audience; Worldwide dairy processing plants produce high volumes of dairy processing sludge (DPS), which can be converted into secondary derivatives such as struvite, biochar and ash (collectively termed STRUBIAS). All of these products have high fertilizer equivalent values (FEV), but future certification as phosphorus (P)-fertilizers in the European Union will mean they need to adhere to new technical regulations for fertilizing materials i.e., content limits pertaining to heavy metals (Cd, Cu, Hg, Ni, Pb, and Zn), synthetic organic compounds and pathogens. This systematic review presents the current state of knowledge about these bio-based fertilizers and identifies knowledge gaps. In addition, a review and calculation of greenhouse gas emissions from a range of concept dairy sludge management and production systems for STRUBIAS products [i.e., biochar from pyrolysis and hydrochar from hydrothermal carbonization (HTC)] is presented. Results from the initial review showed that DPS composition depends on product type and treatment processes at a given processing plant, which leads to varied nutrient, heavy metal and carbon contents. These products are all typically high in nutrients and carbon, but low in heavy metals. Further work needs to concentrate on examining their pathogenic microorganism and emerging contaminant contents, in addition to conducting an economic assessment of production and end-user costs related to chemical fertilizer equivalents. With respect to STRUBIAS products, contaminants not present in the raw DPS may need further treatment before being land applied in agriculture e.g., heated producing ashes, hydrochar, or biochar. An examination of these products from an environmental perspective shows that their water quality footprint could be minimized using application rates based on P incorporation of these products into nutrient management planning and application by incorporation into the soil. Results from the concept system showed that elimination of methane emissions was possible, along with a reduction in nitrous oxide. Less carbon (C) is transferred to agricultural fields where DPS is processed into biochar and hydrochar, but due to high recalcitrance, the C in this form is retained much longer in the soil, and therefore STRUBIAS products represent a more stable and long-term option to increase soil C stocks and sequestration.
- Subjects :
- [SDV.SA]Life Sciences [q-bio]/Agricultural sciences
Greenhouse gas (GHG) emissions
010501 environmental sciences
Sludge
01 natural sciences
Nutrient
Biochar
TX341-641
phosphorus
STRUBIAS
gaseous emissions (greenhouse gases and ammonia emissions)
media_common
2. Zero hunger
Global and Planetary Change
Ecology
Agriculture
Soil Biology
04 agricultural and veterinary sciences
TP368-456
Secondary STRUBIAS Products
PE&RC
Pulp and paper industry
bio-fertilizer
6. Clean water
[SDE]Environmental Sciences
Fertilizer
Biofertilizer
Horticulture
Management, Monitoring, Policy and Law
engineering.material
Food processing and manufacture
12. Responsible consumption
media_common.cataloged_instance
Dairy Processing
European union
Bodembiologie
0105 earth and related environmental sciences
Nutrition. Foods and food supply
Nutrient management
circular economy
environment–agriculture
pyrolysis
environment-agriculture
13. Climate action
Greenhouse gas
040103 agronomy & agriculture
engineering
0401 agriculture, forestry, and fisheries
Environmental science
Systematic Review
Water quality
Agronomy and Crop Science
Food Science
Subjects
Details
- Language :
- English
- ISSN :
- 2571581X
- Database :
- OpenAIRE
- Journal :
- Frontiers in Sustainable Food Systems, Frontiers in Sustainable Food Systems, Frontiers Media, 2021, 5, pp.763020. ⟨10.3389/fsufs.2021.763020⟩, Hu, Y, Khomenko, O, Shi, W, Velasco-Sánchez, Á, Ashekuzzaman, S M, Bennegadi-Laurent, N, Daly, K, Fenton, O, Healy, M, Leahy, J J, Sørensen, P, Sommer, S G, Taghizadeh-Toosi, A & Trinsoutrot-Gattin, I 2021, ' Systematic Review of Dairy Processing Sludge and Secondary STRUBIAS Products Used in Agriculture ', Frontiers in Sustainable Food Systems, bind 5, 763020 . https://doi.org/10.3389/fsufs.2021.763020, Frontiers in Sustainable Food Systems, Vol 5 (2021), Frontiers in Sustainable Food Systems 5 (2021), Frontiers in Sustainable Food Systems, 5
- Accession number :
- edsair.doi.dedup.....1a61956defa5dc7a60bb2f76994c3c09