Effect of ventilation quantity on electron transfer capacity and spectral characteristics of humic substances during sludge composting
Humic substances (HSs) can ameliorate soil pollution by mediating electron transfer between microorganisms and contaminants. This capability depends on the redox-active functional structure and electron transfer capacity (ETC) of HS. This study mainly aimed to analyze the effects of different ventil...
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| Veröffentlicht in: | Environmental science and pollution research international 2022-10, Vol.29 (46), p.70269-70284 |
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| creator | Tan, Zhihan Zhu, Hongxiang He, Xiaosong Xi, Beidou Tian, Yuxin Sun, Xiaojie Zhang, Hongxia Ouche, Quanyi |
| description | Humic substances (HSs) can ameliorate soil pollution by mediating electron transfer between microorganisms and contaminants. This capability depends on the redox-active functional structure and electron transfer capacity (ETC) of HS. This study mainly aimed to analyze the effects of different ventilation quantities on the ETC and spectral characteristics of HS (including humic acids (HAs) and fulvic acids (FAs)) during sludge composting. HS was extracted from compost with different ventilation quantities (0.1, 0.2, and 0.3 L kg
−1
dry matter min
−1
, denoted as VQ1, VQ2, and VQ3, respectively). The ETC of HS was measured by electrochemical method. Excitation–emission matrix (EEM) spectroscopy, ultraviolet and visible (UV–Vis) spectrophotometry, and Fourier transform infrared (FT-IR) spectroscopy were conducted to understand the evolution of HS composition during composting. Results indicated that the ETC of HA and FA increased during composting, and VQ2 had stronger ETC and electron recycling rate than VQ1 and VQ3 at the end of composting. UV–Vis analysis revealed that the humification degree, aromatization degree, and molecular weight of HA and FA increased during composting, while the content of lignin decreased. EEM-PARAFAC results suggested that VQ2 accelerated the degradation of protein-like substances. FT-IR revealed a decrease trend in polysaccharide and aliphatic, and the carboxyl content increased in VQ2 and VQ3 while decreased in VQ1. Correlation analysis was used to study the relationship between HS components and ETC. The results advance our further understanding of the pollution remediation mechanism of HS. |
| doi_str_mv | 10.1007/s11356-022-20808-8 |
| format | Article |
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−1
dry matter min
−1
, denoted as VQ1, VQ2, and VQ3, respectively). The ETC of HS was measured by electrochemical method. Excitation–emission matrix (EEM) spectroscopy, ultraviolet and visible (UV–Vis) spectrophotometry, and Fourier transform infrared (FT-IR) spectroscopy were conducted to understand the evolution of HS composition during composting. Results indicated that the ETC of HA and FA increased during composting, and VQ2 had stronger ETC and electron recycling rate than VQ1 and VQ3 at the end of composting. UV–Vis analysis revealed that the humification degree, aromatization degree, and molecular weight of HA and FA increased during composting, while the content of lignin decreased. EEM-PARAFAC results suggested that VQ2 accelerated the degradation of protein-like substances. FT-IR revealed a decrease trend in polysaccharide and aliphatic, and the carboxyl content increased in VQ2 and VQ3 while decreased in VQ1. Correlation analysis was used to study the relationship between HS components and ETC. The results advance our further understanding of the pollution remediation mechanism of HS.</description><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-022-20808-8</identifier><identifier>PMID: 35589896</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Biodegradation ; Composting ; Contaminants ; Correlation analysis ; Dry matter ; Earth and Environmental Science ; Ecotoxicology ; Electrochemistry ; Electron transfer ; Emission measurements ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental science ; Fourier transforms ; Fulvic acids ; Humic acids ; Humic substances ; Humification ; Infrared spectroscopy ; Microorganisms ; Molecular weight ; Polysaccharides ; Research Article ; Sludge ; Soil contamination ; Soil pollution ; Spectrophotometry ; Spectroscopy ; Spectrum analysis ; Ventilation ; Waste Water Technology ; Water Management ; Water Pollution Control</subject><ispartof>Environmental science and pollution research international, 2022-10, Vol.29 (46), p.70269-70284</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022</rights><rights>2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.</rights><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2022.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-162f2b3051cce3e62337b1b55bde89bdf57be964bcdca0d9a01abaf1e7285e5d3</citedby><cites>FETCH-LOGICAL-c349t-162f2b3051cce3e62337b1b55bde89bdf57be964bcdca0d9a01abaf1e7285e5d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11356-022-20808-8$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11356-022-20808-8$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,782,786,27931,27932,41495,42564,51326</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35589896$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tan, Zhihan</creatorcontrib><creatorcontrib>Zhu, Hongxiang</creatorcontrib><creatorcontrib>He, Xiaosong</creatorcontrib><creatorcontrib>Xi, Beidou</creatorcontrib><creatorcontrib>Tian, Yuxin</creatorcontrib><creatorcontrib>Sun, Xiaojie</creatorcontrib><creatorcontrib>Zhang, Hongxia</creatorcontrib><creatorcontrib>Ouche, Quanyi</creatorcontrib><title>Effect of ventilation quantity on electron transfer capacity and spectral characteristics of humic substances during sludge composting</title><title>Environmental science and pollution research international</title><addtitle>Environ Sci Pollut Res</addtitle><addtitle>Environ Sci Pollut Res Int</addtitle><description>Humic substances (HSs) can ameliorate soil pollution by mediating electron transfer between microorganisms and contaminants. This capability depends on the redox-active functional structure and electron transfer capacity (ETC) of HS. This study mainly aimed to analyze the effects of different ventilation quantities on the ETC and spectral characteristics of HS (including humic acids (HAs) and fulvic acids (FAs)) during sludge composting. HS was extracted from compost with different ventilation quantities (0.1, 0.2, and 0.3 L kg
−1
dry matter min
−1
, denoted as VQ1, VQ2, and VQ3, respectively). The ETC of HS was measured by electrochemical method. Excitation–emission matrix (EEM) spectroscopy, ultraviolet and visible (UV–Vis) spectrophotometry, and Fourier transform infrared (FT-IR) spectroscopy were conducted to understand the evolution of HS composition during composting. Results indicated that the ETC of HA and FA increased during composting, and VQ2 had stronger ETC and electron recycling rate than VQ1 and VQ3 at the end of composting. UV–Vis analysis revealed that the humification degree, aromatization degree, and molecular weight of HA and FA increased during composting, while the content of lignin decreased. EEM-PARAFAC results suggested that VQ2 accelerated the degradation of protein-like substances. FT-IR revealed a decrease trend in polysaccharide and aliphatic, and the carboxyl content increased in VQ2 and VQ3 while decreased in VQ1. Correlation analysis was used to study the relationship between HS components and ETC. The results advance our further understanding of the pollution remediation mechanism of HS.</description><subject>Aquatic Pollution</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Biodegradation</subject><subject>Composting</subject><subject>Contaminants</subject><subject>Correlation analysis</subject><subject>Dry matter</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Electrochemistry</subject><subject>Electron transfer</subject><subject>Emission measurements</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental science</subject><subject>Fourier transforms</subject><subject>Fulvic acids</subject><subject>Humic acids</subject><subject>Humic substances</subject><subject>Humification</subject><subject>Infrared spectroscopy</subject><subject>Microorganisms</subject><subject>Molecular weight</subject><subject>Polysaccharides</subject><subject>Research Article</subject><subject>Sludge</subject><subject>Soil contamination</subject><subject>Soil pollution</subject><subject>Spectrophotometry</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><subject>Ventilation</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollution 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capacity and spectral characteristics of humic substances during sludge composting</atitle><jtitle>Environmental science and pollution research international</jtitle><stitle>Environ Sci Pollut Res</stitle><addtitle>Environ Sci Pollut Res Int</addtitle><date>2022-10-01</date><risdate>2022</risdate><volume>29</volume><issue>46</issue><spage>70269</spage><epage>70284</epage><pages>70269-70284</pages><issn>0944-1344</issn><eissn>1614-7499</eissn><abstract>Humic substances (HSs) can ameliorate soil pollution by mediating electron transfer between microorganisms and contaminants. This capability depends on the redox-active functional structure and electron transfer capacity (ETC) of HS. This study mainly aimed to analyze the effects of different ventilation quantities on the ETC and spectral characteristics of HS (including humic acids (HAs) and fulvic acids (FAs)) during sludge composting. HS was extracted from compost with different ventilation quantities (0.1, 0.2, and 0.3 L kg
−1
dry matter min
−1
, denoted as VQ1, VQ2, and VQ3, respectively). The ETC of HS was measured by electrochemical method. Excitation–emission matrix (EEM) spectroscopy, ultraviolet and visible (UV–Vis) spectrophotometry, and Fourier transform infrared (FT-IR) spectroscopy were conducted to understand the evolution of HS composition during composting. Results indicated that the ETC of HA and FA increased during composting, and VQ2 had stronger ETC and electron recycling rate than VQ1 and VQ3 at the end of composting. UV–Vis analysis revealed that the humification degree, aromatization degree, and molecular weight of HA and FA increased during composting, while the content of lignin decreased. EEM-PARAFAC results suggested that VQ2 accelerated the degradation of protein-like substances. FT-IR revealed a decrease trend in polysaccharide and aliphatic, and the carboxyl content increased in VQ2 and VQ3 while decreased in VQ1. Correlation analysis was used to study the relationship between HS components and ETC. The results advance our further understanding of the pollution remediation mechanism of HS.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>35589896</pmid><doi>10.1007/s11356-022-20808-8</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Biodegradation Composting Contaminants Correlation analysis Dry matter Earth and Environmental Science Ecotoxicology Electrochemistry Electron transfer Emission measurements Environment Environmental Chemistry Environmental Health Environmental science Fourier transforms Fulvic acids Humic acids Humic substances Humification Infrared spectroscopy Microorganisms Molecular weight Polysaccharides Research Article Sludge Soil contamination Soil pollution Spectrophotometry Spectroscopy Spectrum analysis Ventilation Waste Water Technology Water Management Water Pollution Control |
| title | Effect of ventilation quantity on electron transfer capacity and spectral characteristics of humic substances during sludge composting |
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