Mercury fractions transformation during sludge thermal treatment: implications for mercury release and stabilization in municipal sludge
Purpose As the only global pollutant among heavy metals that can be transported over long distances in gaseous form, mercury (Hg) and its forms are of global concern. More than 80% of the Hg in wastewater can be transported into sewage sludge, which becomes an important part of the global Hg emissio...
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| Veröffentlicht in: | Journal of soils and sediments 2024-11, Vol.24 (11), p.3750-3759 |
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| creator | Liu, Jing Lu, Haijian Wang, Heli Mo, Jianying Deng, Yirong |
| description | Purpose
As the only global pollutant among heavy metals that can be transported over long distances in gaseous form, mercury (Hg) and its forms are of global concern. More than 80% of the Hg in wastewater can be transported into sewage sludge, which becomes an important part of the global Hg emission inventory, and it is therefore crucial to analyze potential Hg emissions and transformation rules during sludge treatment/disposal.
Materials and methods
Sludge samples were collected from wastewater treatment plants (WWTPs) located in eight cities in China. The Hg fractionation in the sludge samples was assessed using a seven-step sequential chemical extraction (SCE) method. The relationship between the transformation of chemical constituents and the release of Hg during heating was analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD).
Results and discussion
We found that the proportion of oxidizable Hg and strongly acid-soluble Hg in sludge gradually decreased as the temperature increased, ultimately resulting in about 90% of residual Hg forms. Similar transformation characteristics were observed in sludge samples with different Hg concentrations. At temperatures between 100–200℃, the decomposition of organic components in sludge resulted in the breakdown of organic complex Hg. Subsequently, in the range of 200–400℃, the decomposition of silicate minerals may be the cause for the disappearance of HgS.
Conclusion
This study provides insights into the transformation of Hg fractions during sludge heating, shedding light on the roles of organic matter and mineral composition in this process. Understanding these dynamics is crucial for developing effective strategies to manage and mitigate Hg pollution during sludge disposal.
Graphical Abstract |
| doi_str_mv | 10.1007/s11368-024-03920-9 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_3154161260</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3154161260</sourcerecordid><originalsourceid>FETCH-LOGICAL-c233t-f8b5ebcab10d68309828d8f905072384ba601717c9c500756c8b882ad571cc23</originalsourceid><addsrcrecordid>eNp9kc1OxCAUhYnRxHH0BVyRuHFTvUBbqDtj_Es0bmZPKKUjk5ZWoIvxCXxsGTuJiQtXQO453yXnIHRO4IoA8OtACCtFBjTPgFUUsuoALUhJ8oznAg7TPWdVBgTEMToJYQPAeBov0Ner8XryW9x6paMdXMDRKxfawfdq98bN5K1b49BNzdrg-G7SoEsio2JvXLzBth87q9VsTj7c75HedEYFg5VrcIiqtp39nJnW4X5yVtsxoWbyKTpqVRfM2f5cotXD_eruKXt5e3y-u33JNGUsZq2oC1NrVRNoSsGgElQ0oq2gAE6ZyGtVAuGE60oXKZii1KIWgqqm4EQnxBJdztjRDx-TCVH2NmjTdcqZYQqSkSJPwdASkvTij3QzTN6lzyVV2syLnBdJRWeV9kMI3rRy9LZXfisJyF03cu5Gpm7kTzeySiY2m8K4C9f4X_Q_rm_aE5R5</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>3130975475</pqid></control><display><type>article</type><title>Mercury fractions transformation during sludge thermal treatment: implications for mercury release and stabilization in municipal sludge</title><source>SpringerLink Journals - AutoHoldings</source><creator>Liu, Jing ; Lu, Haijian ; Wang, Heli ; Mo, Jianying ; Deng, Yirong</creator><creatorcontrib>Liu, Jing ; Lu, Haijian ; Wang, Heli ; Mo, Jianying ; Deng, Yirong</creatorcontrib><description>Purpose
As the only global pollutant among heavy metals that can be transported over long distances in gaseous form, mercury (Hg) and its forms are of global concern. More than 80% of the Hg in wastewater can be transported into sewage sludge, which becomes an important part of the global Hg emission inventory, and it is therefore crucial to analyze potential Hg emissions and transformation rules during sludge treatment/disposal.
Materials and methods
Sludge samples were collected from wastewater treatment plants (WWTPs) located in eight cities in China. The Hg fractionation in the sludge samples was assessed using a seven-step sequential chemical extraction (SCE) method. The relationship between the transformation of chemical constituents and the release of Hg during heating was analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD).
Results and discussion
We found that the proportion of oxidizable Hg and strongly acid-soluble Hg in sludge gradually decreased as the temperature increased, ultimately resulting in about 90% of residual Hg forms. Similar transformation characteristics were observed in sludge samples with different Hg concentrations. At temperatures between 100–200℃, the decomposition of organic components in sludge resulted in the breakdown of organic complex Hg. Subsequently, in the range of 200–400℃, the decomposition of silicate minerals may be the cause for the disappearance of HgS.
Conclusion
This study provides insights into the transformation of Hg fractions during sludge heating, shedding light on the roles of organic matter and mineral composition in this process. Understanding these dynamics is crucial for developing effective strategies to manage and mitigate Hg pollution during sludge disposal.
Graphical Abstract</description><identifier>ISSN: 1439-0108</identifier><identifier>EISSN: 1614-7480</identifier><identifier>DOI: 10.1007/s11368-024-03920-9</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Chemical extraction ; China ; Composition effects ; Decomposition ; Earth and Environmental Science ; Emission analysis ; Emission inventories ; Emissions ; Environment ; Environmental Physics ; Fourier transform infrared spectroscopy ; Fourier transforms ; Fractionation ; Genetic transformation ; heat ; Heat treatment ; Heating ; Heavy metals ; Infrared analysis ; Infrared heating ; Infrared spectroscopy ; inventories ; Mercury ; Mercury (metal) ; Mineral composition ; mineral content ; Municipal wastes ; Organic matter ; pollutants ; pollution ; Sec 2 • Physical and Biogeochemical Processes • Research Article ; Sediments ; Sewage ; Sewage sludge ; Silicate minerals ; Silicates ; Sludge ; Sludge disposal ; Sludge treatment ; Soil Science & Conservation ; temperature ; Thermal transformations ; wastewater ; Wastewater treatment ; Wastewater treatment plants ; X-ray diffraction</subject><ispartof>Journal of soils and sediments, 2024-11, Vol.24 (11), p.3750-3759</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c233t-f8b5ebcab10d68309828d8f905072384ba601717c9c500756c8b882ad571cc23</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/s11368-024-03920-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11368-024-03920-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Liu, Jing</creatorcontrib><creatorcontrib>Lu, Haijian</creatorcontrib><creatorcontrib>Wang, Heli</creatorcontrib><creatorcontrib>Mo, Jianying</creatorcontrib><creatorcontrib>Deng, Yirong</creatorcontrib><title>Mercury fractions transformation during sludge thermal treatment: implications for mercury release and stabilization in municipal sludge</title><title>Journal of soils and sediments</title><addtitle>J Soils Sediments</addtitle><description>Purpose
As the only global pollutant among heavy metals that can be transported over long distances in gaseous form, mercury (Hg) and its forms are of global concern. More than 80% of the Hg in wastewater can be transported into sewage sludge, which becomes an important part of the global Hg emission inventory, and it is therefore crucial to analyze potential Hg emissions and transformation rules during sludge treatment/disposal.
Materials and methods
Sludge samples were collected from wastewater treatment plants (WWTPs) located in eight cities in China. The Hg fractionation in the sludge samples was assessed using a seven-step sequential chemical extraction (SCE) method. The relationship between the transformation of chemical constituents and the release of Hg during heating was analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD).
Results and discussion
We found that the proportion of oxidizable Hg and strongly acid-soluble Hg in sludge gradually decreased as the temperature increased, ultimately resulting in about 90% of residual Hg forms. Similar transformation characteristics were observed in sludge samples with different Hg concentrations. At temperatures between 100–200℃, the decomposition of organic components in sludge resulted in the breakdown of organic complex Hg. Subsequently, in the range of 200–400℃, the decomposition of silicate minerals may be the cause for the disappearance of HgS.
Conclusion
This study provides insights into the transformation of Hg fractions during sludge heating, shedding light on the roles of organic matter and mineral composition in this process. Understanding these dynamics is crucial for developing effective strategies to manage and mitigate Hg pollution during sludge disposal.
Graphical Abstract</description><subject>Chemical extraction</subject><subject>China</subject><subject>Composition effects</subject><subject>Decomposition</subject><subject>Earth and Environmental Science</subject><subject>Emission analysis</subject><subject>Emission inventories</subject><subject>Emissions</subject><subject>Environment</subject><subject>Environmental Physics</subject><subject>Fourier transform infrared spectroscopy</subject><subject>Fourier transforms</subject><subject>Fractionation</subject><subject>Genetic transformation</subject><subject>heat</subject><subject>Heat treatment</subject><subject>Heating</subject><subject>Heavy metals</subject><subject>Infrared analysis</subject><subject>Infrared heating</subject><subject>Infrared spectroscopy</subject><subject>inventories</subject><subject>Mercury</subject><subject>Mercury (metal)</subject><subject>Mineral composition</subject><subject>mineral content</subject><subject>Municipal wastes</subject><subject>Organic matter</subject><subject>pollutants</subject><subject>pollution</subject><subject>Sec 2 • Physical and Biogeochemical Processes • Research Article</subject><subject>Sediments</subject><subject>Sewage</subject><subject>Sewage sludge</subject><subject>Silicate minerals</subject><subject>Silicates</subject><subject>Sludge</subject><subject>Sludge disposal</subject><subject>Sludge treatment</subject><subject>Soil Science & Conservation</subject><subject>temperature</subject><subject>Thermal transformations</subject><subject>wastewater</subject><subject>Wastewater treatment</subject><subject>Wastewater treatment plants</subject><subject>X-ray diffraction</subject><issn>1439-0108</issn><issn>1614-7480</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kc1OxCAUhYnRxHH0BVyRuHFTvUBbqDtj_Es0bmZPKKUjk5ZWoIvxCXxsGTuJiQtXQO453yXnIHRO4IoA8OtACCtFBjTPgFUUsuoALUhJ8oznAg7TPWdVBgTEMToJYQPAeBov0Ner8XryW9x6paMdXMDRKxfawfdq98bN5K1b49BNzdrg-G7SoEsio2JvXLzBth87q9VsTj7c75HedEYFg5VrcIiqtp39nJnW4X5yVtsxoWbyKTpqVRfM2f5cotXD_eruKXt5e3y-u33JNGUsZq2oC1NrVRNoSsGgElQ0oq2gAE6ZyGtVAuGE60oXKZii1KIWgqqm4EQnxBJdztjRDx-TCVH2NmjTdcqZYQqSkSJPwdASkvTij3QzTN6lzyVV2syLnBdJRWeV9kMI3rRy9LZXfisJyF03cu5Gpm7kTzeySiY2m8K4C9f4X_Q_rm_aE5R5</recordid><startdate>20241101</startdate><enddate>20241101</enddate><creator>Liu, Jing</creator><creator>Lu, Haijian</creator><creator>Wang, Heli</creator><creator>Mo, Jianying</creator><creator>Deng, Yirong</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope><scope>SOI</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20241101</creationdate><title>Mercury fractions transformation during sludge thermal treatment: implications for mercury release and stabilization in municipal sludge</title><author>Liu, Jing ; Lu, Haijian ; Wang, Heli ; Mo, Jianying ; Deng, Yirong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c233t-f8b5ebcab10d68309828d8f905072384ba601717c9c500756c8b882ad571cc23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Chemical extraction</topic><topic>China</topic><topic>Composition effects</topic><topic>Decomposition</topic><topic>Earth and Environmental Science</topic><topic>Emission analysis</topic><topic>Emission inventories</topic><topic>Emissions</topic><topic>Environment</topic><topic>Environmental Physics</topic><topic>Fourier transform infrared spectroscopy</topic><topic>Fourier transforms</topic><topic>Fractionation</topic><topic>Genetic transformation</topic><topic>heat</topic><topic>Heat treatment</topic><topic>Heating</topic><topic>Heavy metals</topic><topic>Infrared analysis</topic><topic>Infrared heating</topic><topic>Infrared spectroscopy</topic><topic>inventories</topic><topic>Mercury</topic><topic>Mercury (metal)</topic><topic>Mineral composition</topic><topic>mineral content</topic><topic>Municipal wastes</topic><topic>Organic matter</topic><topic>pollutants</topic><topic>pollution</topic><topic>Sec 2 • Physical and Biogeochemical Processes • Research Article</topic><topic>Sediments</topic><topic>Sewage</topic><topic>Sewage sludge</topic><topic>Silicate minerals</topic><topic>Silicates</topic><topic>Sludge</topic><topic>Sludge disposal</topic><topic>Sludge treatment</topic><topic>Soil Science & Conservation</topic><topic>temperature</topic><topic>Thermal transformations</topic><topic>wastewater</topic><topic>Wastewater treatment</topic><topic>Wastewater treatment plants</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Jing</creatorcontrib><creatorcontrib>Lu, Haijian</creatorcontrib><creatorcontrib>Wang, Heli</creatorcontrib><creatorcontrib>Mo, Jianying</creatorcontrib><creatorcontrib>Deng, Yirong</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Journal of soils and sediments</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Jing</au><au>Lu, Haijian</au><au>Wang, Heli</au><au>Mo, Jianying</au><au>Deng, Yirong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mercury fractions transformation during sludge thermal treatment: implications for mercury release and stabilization in municipal sludge</atitle><jtitle>Journal of soils and sediments</jtitle><stitle>J Soils Sediments</stitle><date>2024-11-01</date><risdate>2024</risdate><volume>24</volume><issue>11</issue><spage>3750</spage><epage>3759</epage><pages>3750-3759</pages><issn>1439-0108</issn><eissn>1614-7480</eissn><abstract>Purpose
As the only global pollutant among heavy metals that can be transported over long distances in gaseous form, mercury (Hg) and its forms are of global concern. More than 80% of the Hg in wastewater can be transported into sewage sludge, which becomes an important part of the global Hg emission inventory, and it is therefore crucial to analyze potential Hg emissions and transformation rules during sludge treatment/disposal.
Materials and methods
Sludge samples were collected from wastewater treatment plants (WWTPs) located in eight cities in China. The Hg fractionation in the sludge samples was assessed using a seven-step sequential chemical extraction (SCE) method. The relationship between the transformation of chemical constituents and the release of Hg during heating was analyzed by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD).
Results and discussion
We found that the proportion of oxidizable Hg and strongly acid-soluble Hg in sludge gradually decreased as the temperature increased, ultimately resulting in about 90% of residual Hg forms. Similar transformation characteristics were observed in sludge samples with different Hg concentrations. At temperatures between 100–200℃, the decomposition of organic components in sludge resulted in the breakdown of organic complex Hg. Subsequently, in the range of 200–400℃, the decomposition of silicate minerals may be the cause for the disappearance of HgS.
Conclusion
This study provides insights into the transformation of Hg fractions during sludge heating, shedding light on the roles of organic matter and mineral composition in this process. Understanding these dynamics is crucial for developing effective strategies to manage and mitigate Hg pollution during sludge disposal.
Graphical Abstract</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s11368-024-03920-9</doi><tpages>10</tpages></addata></record> |
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| ispartof | Journal of soils and sediments, 2024-11, Vol.24 (11), p.3750-3759 |
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| subjects | Chemical extraction China Composition effects Decomposition Earth and Environmental Science Emission analysis Emission inventories Emissions Environment Environmental Physics Fourier transform infrared spectroscopy Fourier transforms Fractionation Genetic transformation heat Heat treatment Heating Heavy metals Infrared analysis Infrared heating Infrared spectroscopy inventories Mercury Mercury (metal) Mineral composition mineral content Municipal wastes Organic matter pollutants pollution Sec 2 • Physical and Biogeochemical Processes • Research Article Sediments Sewage Sewage sludge Silicate minerals Silicates Sludge Sludge disposal Sludge treatment Soil Science & Conservation temperature Thermal transformations wastewater Wastewater treatment Wastewater treatment plants X-ray diffraction |
| title | Mercury fractions transformation during sludge thermal treatment: implications for mercury release and stabilization in municipal sludge |
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