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Chojnacka K, Chojnacki M. Nutrient recovery from anaerobic digestate: Fertilizer informatics for circular economy. ENVIRONMENTAL RESEARCH 2024; 245:117953. [PMID: 38128599 DOI: 10.1016/j.envres.2023.117953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/03/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023]
Abstract
This study explores the integration of fertilizer informatics into the circular economy, with a focus on enhancing nutrient recovery from anaerobic digestate. It utilizes advanced algorithms and data analytics to develop new nutrient management strategies essential for sustainable agriculture. This research provides a detailed assessment of current nutrient recovery technologies, evaluating their environmental impact, cost efficiency, and adaptability. Our findings highlight the importance of merging circular economy principles with fertilizer informatics, showcasing the potential for transforming waste into environmentally friendly fertilizers. This approach has significant implications for improving agricultural practices towards sustainability. The methodologies and insights presented are relevant for ongoing research in environmental stewardship and sustainable resource management. This study describes practical solutions and new perspectives, making it a valuable reference for future research.
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Affiliation(s)
- Katarzyna Chojnacka
- Department of Advanced Material Technologies, Wroclaw University of Science and Technology, Poland.
| | - Michał Chojnacki
- Student of Medical Informatics, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wrocław, Poland.
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Rocha ME, Lazarino TC, Oliveira G, Teixeira L, Marques M, Mangiavacchi N. Analysis of biogas production from sewage sludge combining BMP experimental assays and the ADM1 model. PeerJ 2024; 12:e16720. [PMID: 38239297 PMCID: PMC10795531 DOI: 10.7717/peerj.16720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 12/04/2023] [Indexed: 01/22/2024] Open
Abstract
The Anaerobic Digestion Model No. 1 (ADM1) was employed to simulate methane (CH4) production in an anaerobic reactor (AR), and the associated bench-scale biochemical methane potential (BMP) assay, having sewage sludge (SWS) from a municipal wastewater treatment plant (WWTP) as feedstock. The SWS presented the following physical-chemical characteristics: pH (7.4-7.6), alkalinity (2,382 ± 100 mg CaCO3 L-1), tCOD (21,903 ± 1,000 mg L-1), TOC (895 ± 100 mg L-1), TS, TVS, and VSS (2.0%, 1.1%, and 0.8%, respectively). The BMP assay was conducted in six replicates under anaerobic mesophilic conditions (37 ± 0.1°C) for 11 days with a CH4 yield registered of 137.6 ± 6.39 NmL CH4 or 124 ± 6.72 CH4 g-1 VS-1. When the results obtained with the BMP bench-scale reactors were compared to the output generated with computational data by the ADM1 model having as input data the same initial sewage tCOD, similar cumulative CH4 production curves were obtained, indicating the accuracy of the ADM1 model. This approach allowed the characterization of the sludge and estimation of its biogas production potential. The combination of BMP assays, experimental data, and ADM1 model simulations provided a framework for studying anaerobic digestion (AD) processes.
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Affiliation(s)
- Mariana Erthal Rocha
- Department of Mechanical Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
- Department of Sanitary and Environmental Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Thais Carvalho Lazarino
- Department of Mechanical Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Gabriel Oliveira
- Department of Mechanical Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Lia Teixeira
- Department of Sanitary and Environmental Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Marcia Marques
- Department of Sanitary and Environmental Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
| | - Norberto Mangiavacchi
- Department of Mechanical Engineering, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil
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Chang H, Zhao Y, Li X, Damgaard A, Christensen TH. Review of inventory data for the biological treatment of sewage sludge. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 156:66-74. [PMID: 36442328 DOI: 10.1016/j.wasman.2022.11.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 11/08/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
The biological treatment of municipal sewage sludge, including anaerobic digestion and composting, was reviewed with the purpose of establishing inventory data to address all the inputs and outputs related to sludge treatment. We identified 193 scientific papers, resulting in 64 datasets on anaerobic digestion and 35 datasets on composting. For anaerobic digestion, biogas production varied significantly (up to a factor of four) depending on the sludge. A useful correlation was identified between the amount of methane produced and the degradation of volatile solids. According to statistical tests, no significant differences were found in biogas production for mesophilic and thermophilic digesters. In addition, methane content varied significantly, and very few data were available for digestate composition or for energy consumption and recovery. For composting, accurate estimates relating to the degradation of sewage sludge could not be made, since organic bulking materials were part of the final composted product. Data on emissions to air are currently scarce, which points to the need for more published information. The inventory data evaluated herein are useful in the feasibility assessment of the biological treatment of sewage sludge, for comparing technologies, for example in LCA studies and as a basis for evaluating the performance of a specific biological sludge treatment plant. However, a great deal of the reviewed data originated from laboratory and pilot-scale studies, and so there is a need for more complete datasets on the performance of full-scale technologies, in order to establish full inventories and identify differences in technologies and operational conditions.
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Affiliation(s)
- Huimin Chang
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yan Zhao
- School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Xiang Li
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Anders Damgaard
- Department of Environmental Engineering, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Thomas H Christensen
- Department of Environmental Engineering, Technical University of Denmark, Kongens Lyngby 2800, Denmark
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Hardy J, Bonin P, Lazuka A, Gonidec E, Guasco S, Valette C, Lacroix S, Cabrol L. Similar Methanogenic Shift but Divergent Syntrophic Partners in Anaerobic Digesters Exposed to Direct versus Successive Ammonium Additions. Microbiol Spectr 2021; 9:e0080521. [PMID: 34612672 PMCID: PMC8510171 DOI: 10.1128/spectrum.00805-21] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 01/04/2023] Open
Abstract
During anaerobic digestion (AD) of protein-rich wastewater, ammonium (NH4+) is released by amino acid degradation. High NH4+ concentrations disturb the AD microbiome balance, leading to process impairments. The sensitivity of the AD microbiome to NH4+ and the inhibition threshold depend on multiple parameters, especially the previous microbial acclimation to ammonium stress. However, little is known about the effect of different NH4+ acclimation strategies on the differential expression of key active microbial taxa. Here, we applied NH4+ inputs of increasing intensity (from 1.7 to 15.2 g N-NH4+ liters-1) in batch assays fed with synthetic wastewater, according to two different strategies: (i) direct independent inputs at a unique target concentration and (ii) successive inputs in a stepwise manner. In both strategies, along the NH4+ gradient, the active methanogens shifted from acetoclastic Methanosaeta to Methanosarcina and eventually hydrogenotrophic Methanoculleus. Despite shorter latency times, the successive input modality led to lower methane production rate, lower soluble chemical oxygen demand (sCOD) removal efficiency, and lower half maximal inhibitory concentration, together with higher volatile fatty acid (VFA) accumulation, compared to the independent input modality. These differential performances were associated with a drastically distinct succession pattern of the active bacterial partners in both experiments. In particular, the direct exposure modality was characterized by a progressive enrichment of VFA producers (mainly Tepidimicrobium) and syntrophic VFA oxidizers (mainly Syntrophaceticus) with increasing NH4+ concentration, while the successive exposure modality was characterized by a more dynamic succession of VFA producers (mainly Clostridium, Sporanaerobacter, Terrisporobacter) and syntrophic VFA oxidizers (mainly Tepidanaerobacter, Syntrophomonas). These results bring relevant insights for improved process management through inoculum adaptation, bioaugmentation, or community-driven optimization. IMPORTANCE Anaerobic digestion (AD) is an attractive biotechnological process for wastewater bioremediation and bioenergy production in the form of methane-rich biogas. However, AD can be inhibited by ammonium generated by protein-rich effluent, commonly found in agro-industrial activities. Insights in the microbial community composition and identification of AD key players are crucial for anticipating process impairments in response to ammonium stress. They can also help in defining an optimal microbiome adapted to high ammonium levels. Here, we compared two strategies for acclimation of AD microbiome to increasing ammonium concentration to better understand the effect of this stress on the methanogens and their bacterial partners. Our results suggest that long-term cumulative exposure to ammonia disrupted the AD microbiome more strongly than direct (independent) ammonium additions. We identified bioindicators with different NH4+ tolerance capacity among VFA producers and syntrophic VFA oxidizers.
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Affiliation(s)
- Julie Hardy
- MIO, Aix Marseille University, University of Toulon, CNRS, IRD, Marseille, France
- Scientific & Technological Expertise Department, Veolia, Maisons-Laffitte, France
| | - Patricia Bonin
- MIO, Aix Marseille University, University of Toulon, CNRS, IRD, Marseille, France
| | - Adele Lazuka
- Scientific & Technological Expertise Department, Veolia, Maisons-Laffitte, France
| | - Estelle Gonidec
- Scientific & Technological Expertise Department, Veolia, Maisons-Laffitte, France
| | - Sophie Guasco
- MIO, Aix Marseille University, University of Toulon, CNRS, IRD, Marseille, France
| | - Corinne Valette
- MIO, Aix Marseille University, University of Toulon, CNRS, IRD, Marseille, France
| | - Sébastien Lacroix
- Scientific & Technological Expertise Department, Veolia, Maisons-Laffitte, France
| | - Léa Cabrol
- MIO, Aix Marseille University, University of Toulon, CNRS, IRD, Marseille, France
- Instituto de Ecologia y Biodiversidad (IEB) Facultad de Ciencias, Universidad de Chile Las Palmeras, Nunoa, Santiago, Chile
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