Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus
Abstract Pyrolysis is an effective technology for treating and utilizing biogas residue. To explore the phosphorus (P) supply capacity of the biochar generated from biogas residue of Eichhornia Crassipes, the P speciation of E. crassipes biogas residue and biomass during pyrolysis (300–700 °C) was a...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2023-12-01
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| Series: | Biochar |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s42773-023-00281-3 |
| _version_ | 1797397848137924608 |
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| author | Fan Yu Junxia Wang Xutong Wang Yuting Wang Qianqian Guo Zhi Wang Xiaoqiang Cui Yanjun Hu Beibei Yan Guanyi Chen |
| author_facet | Fan Yu Junxia Wang Xutong Wang Yuting Wang Qianqian Guo Zhi Wang Xiaoqiang Cui Yanjun Hu Beibei Yan Guanyi Chen |
| author_sort | Fan Yu |
| collection | DOAJ |
| description | Abstract Pyrolysis is an effective technology for treating and utilizing biogas residue. To explore the phosphorus (P) supply capacity of the biochar generated from biogas residue of Eichhornia Crassipes, the P speciation of E. crassipes biogas residue and biomass during pyrolysis (300–700 °C) was analyzed by combining sequential chemical extraction, 31P nuclear magnetic resonance (NMR) and P K-edge X-ray absorption near edge structure (XANES) spectroscopy. Pyrolysis treatment promoted the conversion of amorphous Ca-P phases in biogas residue and biomass into crystalline hydroxyapatite (HAP) phase, which matched the formation of stable HCl-P pools in the biochar derived from biogas residue (AEBs, 22.65–82.04%) and biomass (EBs, 13.08–33.52%) in the process of pyrolysis. Moreover, the total P contents in AEBs (19.43–28.92 mg g−1) were higher than that of EBs (3.41–5.26 mg g−1), indicating that AEBs had a great P reclamation potential. The P release kinetics from AEBs and EBs in water were evaluated via an incubation experiment for 360 h. The P release from both AEBs and EBs conformed to the pseudo-second order kinetics model (R 2 > 0.93), but their P release behaviors were different. The P release of AEBs conformed to the diffusion-re-adsorption model, while that of EBs accorded with the diffusion-dissolution model. The diffusive gradients in thin-films (DGT) analysis showed that AEBs could significantly increase soil available P content as compared with EBs. Hence, the biochar produced from biogas residue of E. crassipes via pyrolysis has a good application potential as a P fertilizer. Graphical Abstract |
| first_indexed | 2024-03-09T01:17:06Z |
| format | Article |
| id | doaj.art-ebb0dd9478e2489187bc0ae5477a747c |
| institution | Directory Open Access Journal |
| issn | 2524-7867 |
| language | English |
| last_indexed | 2024-03-09T01:17:06Z |
| publishDate | 2023-12-01 |
| publisher | Springer |
| record_format | Article |
| series | Biochar |
| spelling | doaj.art-ebb0dd9478e2489187bc0ae5477a747c2023-12-10T12:27:12ZengSpringerBiochar2524-78672023-12-015111410.1007/s42773-023-00281-3Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorusFan Yu0Junxia Wang1Xutong Wang2Yuting Wang3Qianqian Guo4Zhi Wang5Xiaoqiang Cui6Yanjun Hu7Beibei Yan8Guanyi Chen9Institute of Energy and Power Engineering, Zhejiang University of TechnologySchool of Environmental Science and Engineering, Tianjin Key lab of Biomass Waste Utilization, Tianjin UniversityNuclear and Radiation Safety Center, Ministry of Ecology and EnvironmentSchool of Environmental Science and Engineering, Tianjin Key lab of Biomass Waste Utilization, Tianjin UniversityInstitute of Energy and Power Engineering, Zhejiang University of TechnologySchool of Environmental Science and Engineering, Tianjin Key lab of Biomass Waste Utilization, Tianjin UniversitySchool of Environmental Science and Engineering, Tianjin Key lab of Biomass Waste Utilization, Tianjin UniversityInstitute of Energy and Power Engineering, Zhejiang University of TechnologySchool of Environmental Science and Engineering, Tianjin Key lab of Biomass Waste Utilization, Tianjin UniversitySchool of Environmental Science and Engineering, Tianjin Key lab of Biomass Waste Utilization, Tianjin UniversityAbstract Pyrolysis is an effective technology for treating and utilizing biogas residue. To explore the phosphorus (P) supply capacity of the biochar generated from biogas residue of Eichhornia Crassipes, the P speciation of E. crassipes biogas residue and biomass during pyrolysis (300–700 °C) was analyzed by combining sequential chemical extraction, 31P nuclear magnetic resonance (NMR) and P K-edge X-ray absorption near edge structure (XANES) spectroscopy. Pyrolysis treatment promoted the conversion of amorphous Ca-P phases in biogas residue and biomass into crystalline hydroxyapatite (HAP) phase, which matched the formation of stable HCl-P pools in the biochar derived from biogas residue (AEBs, 22.65–82.04%) and biomass (EBs, 13.08–33.52%) in the process of pyrolysis. Moreover, the total P contents in AEBs (19.43–28.92 mg g−1) were higher than that of EBs (3.41–5.26 mg g−1), indicating that AEBs had a great P reclamation potential. The P release kinetics from AEBs and EBs in water were evaluated via an incubation experiment for 360 h. The P release from both AEBs and EBs conformed to the pseudo-second order kinetics model (R 2 > 0.93), but their P release behaviors were different. The P release of AEBs conformed to the diffusion-re-adsorption model, while that of EBs accorded with the diffusion-dissolution model. The diffusive gradients in thin-films (DGT) analysis showed that AEBs could significantly increase soil available P content as compared with EBs. Hence, the biochar produced from biogas residue of E. crassipes via pyrolysis has a good application potential as a P fertilizer. Graphical Abstracthttps://doi.org/10.1007/s42773-023-00281-3PyrolysisPhosphorus speciationBiocharRelease kineticsAvailability |
| spellingShingle | Fan Yu Junxia Wang Xutong Wang Yuting Wang Qianqian Guo Zhi Wang Xiaoqiang Cui Yanjun Hu Beibei Yan Guanyi Chen Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus Biochar Pyrolysis Phosphorus speciation Biochar Release kinetics Availability |
| title | Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus |
| title_full | Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus |
| title_fullStr | Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus |
| title_full_unstemmed | Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus |
| title_short | Phosphorus-enriched biochar from biogas residue of Eichhornia crassipes: transformation and release of phosphorus |
| title_sort | phosphorus enriched biochar from biogas residue of eichhornia crassipes transformation and release of phosphorus |
| topic | Pyrolysis Phosphorus speciation Biochar Release kinetics Availability |
| url | https://doi.org/10.1007/s42773-023-00281-3 |
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