| Title | Thermophilic anaerobic digestion as suitable bioprocess producing organic and chemical renewable fertilizers: A full-scale approach |
|---|---|
| ID_Doc | 17978 |
| Authors | Pigoli, A; Zilio, M; Tambone, F; Mazzini, S; Schepis, M; Meers, E; Schoumans, O; Giordano, A; Adani, F |
| Title | Thermophilic anaerobic digestion as suitable bioprocess producing organic and chemical renewable fertilizers: A full-scale approach |
| Year | 2021 |
| Published | |
| Abstract | This work reports a full-scale study in which organic wastes were transformed by high-solid thermophilic anaerobic digestion (HSAD), into N fertilizers and organic fertilizers, i.e. digestate. The produced fertilizers were characterized over 42 months and their properties were discussed in comparisons with literature data. HSAD coupled with N stripping technology led to ammonia sulphate production having high N concentration (74 +/- 2 g kg-1 wet weight), neutral pH (6.8 +/- 1.3) and low traces of other elements. Digestate showed both higher carbon (C) content (314 +/- 30 g kg-1 on dry matter (DM) and biological stability than green composts, indicating good amendment properties. Digestate was also interesting for its N (77 +/- 3.7 g kg-1 dry matter-DM) content, half of it in the ammonia form, and P content (28 +/- 4.1 g kg-1 DM) that was 43% readily available as soluble P-orthophosphate. K content was low (6.5 +/- 1.3 g kg-1 DM), indicating poor fertilizing ability of digestate for this element. All organic pollutants investigated were much lower than the limits required for agricultural use and levels of some of them were lower than the content revealed for other organic matrices such as agricultural and energy crop digestates and compost. Emerging pollutants (i.e., pharmaceuticals) were tested as markers and they were found to be below the detection limit (<0.01 mg kg-1 DM) indicating very low content. The results obtained showed that HSAD coupled with N stripping allowed transforming sewage sludge into fertilizers and soil improvers exploitable in agriculture. (c) 2021 Elsevier Ltd. All rights reserved. |
| https://air.unimi.it/bitstream/2434/819196/2/Pigoli%20et%20al.%2c%20WM-2021.pdf |
Similar Articles
| ID | Score | Article |
|---|---|---|
25316
|
Ries, J; Chen, ZH; Park, Y Potential Applications of Food-Waste-Based Anaerobic Digestate for Sustainable Crop Production Practice(2023)Sustainability, 15, 11 | |
| 24526
|
Bolzonella, D; Fatone, F; Gottardo, M; Frison, N Nutrients recovery from anaerobic digestate of agro-waste: Techno-economic assessment of full scale applications(2018) | |
| 22932
|
Zielinska, M; Bulkowska, K Sustainable Management and Advanced Nutrient Recovery from Biogas Energy Sector Effluents(2024)Energies, 17.0, 15 | |
| 18612
|
Herrera, A; D'Imporzano, G; Zilio, M; Pigoli, A; Rizzi, B; Meers, E; Schouman, O; Schepis, M; Barone, F; Giordano, A; Adani, F Environmental Performance in the Production and Use of Recovered Fertilizers from Organic Wastes Treated by Anaerobic Digestion vs Synthetic Mineral Fertilizers(2022)Acs Sustainable Chemistry & Engineering, 10.0, 2 | |
| 26274
|
Trotta, S; Adani, F; Fedele, M; Salvatori, M Nitrogen and phosphorus recovery from cow digestate by struvite precipitation: Process optimization to maximize phosphorus recovery(2023) | |
| 25204
|
Eraky, M; Elsayed, M; Qyyum, MA; Ai, P; Tawfik, A A new cutting-edge review on the bioremediation of anaerobic digestate for environmental applications and cleaner bioenergy(2022) | |
| 29732
|
Lu, J; Xu, SY Post-treatment of food waste digestate towards land application: A review(2021) | |
| 5370
|
Sillero, L; Perez, M; Solera, R Temperature-phased enhanced the single-stage anaerobic co-digestion of sewage sludge, wine vinasse and poultry manure: Perspetives for the circular economy(2023) | |
| 6586
|
Sillero, L; Solera, R; Pérez, M Thermophilic-mesophilic temperature phase anaerobic co-digestion of sewage sludge, wine vinasse and poultry manure: Effect of hydraulic retention time on mesophilic-methanogenic stage(2023) | |
| 16365
|
Santos, AF; Alvarenga, P; Quina, MJ; Gando-Ferreira, LM Agronomic valorization of sewage sludge: The potential of thermal drying to achieve sanitation and biological stability(2022) |