Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils
Background. Soil contamination by hexavalent chromium is becoming a main environmental concern in China. This study developed a sewage sludge biochar modified by FeSO4 (CHBC) as a new reductant for Cr(VI)-contaminated soil. The effectiveness of CHBC-stabilized Cr(VI)-contaminated soil was investigat...
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| Veröffentlicht in: | Advances in Civil Engineering 2020, Vol.2020 (2020), p.1-10 |
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| creator | Chen, Jin-Hong Ning, Zhi Zhang, Ting-Ting Li, Yuan-Yuan |
| description | Background. Soil contamination by hexavalent chromium is becoming a main environmental concern in China. This study developed a sewage sludge biochar modified by FeSO4 (CHBC) as a new reductant for Cr(VI)-contaminated soil. The effectiveness of CHBC-stabilized Cr(VI)-contaminated soil was investigated. Methods. Typical industrial Cr(VI)-contaminated soil in China was chosen as the medium. The total and Cr(VI) contents of the contaminated soil were 1014.6 and 973.5 mg/kg, respectively. The effectiveness of the Cr(VI)-contaminated soil stabilized by CHBC was investigated by the leaching test (US EPA method 1312), the simplified bioaccessibility extraction test (US EPA 2007 protocol and British Geological Survey), alkaline digestion (US EPA method 3060A), sequential extraction (BCR sequential extraction procedure), X-ray diffraction, and the risk assessment code test. Results. Results show that CHBC substantially reduced the leachability and Cr(VI) content of the contaminated soil. The leachability and content of Cr(VI) were lower than the thresholds of the Environmental Quality Standards of Soil in China for civil reuse and the China Environmental Quality Standards of surface water for civil use when the soil was stabilized with 10% dosage of CHBC. Conclusion. CHBC is highly efficient in stabilizing Cr(VI) and can effectively reduce the leachability and bioavailability of Cr in contaminated soil and thus feasible for stabilizing Cr(VI)-contaminated soil and shows potential for application in the field. |
| doi_str_mv | 10.1155/2020/6521638 |
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Soil contamination by hexavalent chromium is becoming a main environmental concern in China. This study developed a sewage sludge biochar modified by FeSO4 (CHBC) as a new reductant for Cr(VI)-contaminated soil. The effectiveness of CHBC-stabilized Cr(VI)-contaminated soil was investigated. Methods. Typical industrial Cr(VI)-contaminated soil in China was chosen as the medium. The total and Cr(VI) contents of the contaminated soil were 1014.6 and 973.5 mg/kg, respectively. The effectiveness of the Cr(VI)-contaminated soil stabilized by CHBC was investigated by the leaching test (US EPA method 1312), the simplified bioaccessibility extraction test (US EPA 2007 protocol and British Geological Survey), alkaline digestion (US EPA method 3060A), sequential extraction (BCR sequential extraction procedure), X-ray diffraction, and the risk assessment code test. Results. Results show that CHBC substantially reduced the leachability and Cr(VI) content of the contaminated soil. The leachability and content of Cr(VI) were lower than the thresholds of the Environmental Quality Standards of Soil in China for civil reuse and the China Environmental Quality Standards of surface water for civil use when the soil was stabilized with 10% dosage of CHBC. Conclusion. CHBC is highly efficient in stabilizing Cr(VI) and can effectively reduce the leachability and bioavailability of Cr in contaminated soil and thus feasible for stabilizing Cr(VI)-contaminated soil and shows potential for application in the field.</description><identifier>ISSN: 1687-8086</identifier><identifier>EISSN: 1687-8094</identifier><identifier>DOI: 10.1155/2020/6521638</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Alkaline digestion ; Aquatic resources ; Aqueous solutions ; Bioavailability ; Charcoal ; China ; Chromium ; Civil engineering ; Environmental perception ; Environmental quality ; Geological surveys ; Hexavalent chromium ; Hydrochloric acid ; Industrial pollution ; Iron compounds ; Iron sulfates ; Leachates ; Leaching ; Pore size ; Quality standards ; Reducing agents ; Risk assessment ; Sewage sludge ; Sludge ; Soil contamination ; Soil investigations ; Soil pollution ; Soil remediation ; Soil stabilization ; Soils ; Sulfates ; Sulfur content ; Surface water ; Surveys ; X-ray diffraction</subject><ispartof>Advances in Civil Engineering, 2020, Vol.2020 (2020), p.1-10</ispartof><rights>Copyright © 2020 Yuan-Yuan Li et al.</rights><rights>COPYRIGHT 2020 John Wiley & Sons, Inc.</rights><rights>Copyright © 2020 Yuan-Yuan Li et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c539t-b8a363dd139146427f3a0c68ba6559c9f3e507f1d291ff2f220edb127dc177f23</citedby><cites>FETCH-LOGICAL-c539t-b8a363dd139146427f3a0c68ba6559c9f3e507f1d291ff2f220edb127dc177f23</cites><orcidid>0000-0001-5095-3676 ; 0000-0003-3827-7577</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,873,2096,4010,27900,27901,27902</link.rule.ids></links><search><contributor>Hatfield, Kirk</contributor><contributor>Kirk Hatfield</contributor><creatorcontrib>Chen, Jin-Hong</creatorcontrib><creatorcontrib>Ning, Zhi</creatorcontrib><creatorcontrib>Zhang, Ting-Ting</creatorcontrib><creatorcontrib>Li, Yuan-Yuan</creatorcontrib><title>Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils</title><title>Advances in Civil Engineering</title><description>Background. Soil contamination by hexavalent chromium is becoming a main environmental concern in China. This study developed a sewage sludge biochar modified by FeSO4 (CHBC) as a new reductant for Cr(VI)-contaminated soil. The effectiveness of CHBC-stabilized Cr(VI)-contaminated soil was investigated. Methods. Typical industrial Cr(VI)-contaminated soil in China was chosen as the medium. The total and Cr(VI) contents of the contaminated soil were 1014.6 and 973.5 mg/kg, respectively. The effectiveness of the Cr(VI)-contaminated soil stabilized by CHBC was investigated by the leaching test (US EPA method 1312), the simplified bioaccessibility extraction test (US EPA 2007 protocol and British Geological Survey), alkaline digestion (US EPA method 3060A), sequential extraction (BCR sequential extraction procedure), X-ray diffraction, and the risk assessment code test. Results. Results show that CHBC substantially reduced the leachability and Cr(VI) content of the contaminated soil. The leachability and content of Cr(VI) were lower than the thresholds of the Environmental Quality Standards of Soil in China for civil reuse and the China Environmental Quality Standards of surface water for civil use when the soil was stabilized with 10% dosage of CHBC. Conclusion. CHBC is highly efficient in stabilizing Cr(VI) and can effectively reduce the leachability and bioavailability of Cr in contaminated soil and thus feasible for stabilizing Cr(VI)-contaminated soil and shows potential for application in the field.</description><subject>Alkaline digestion</subject><subject>Aquatic resources</subject><subject>Aqueous solutions</subject><subject>Bioavailability</subject><subject>Charcoal</subject><subject>China</subject><subject>Chromium</subject><subject>Civil engineering</subject><subject>Environmental perception</subject><subject>Environmental quality</subject><subject>Geological surveys</subject><subject>Hexavalent chromium</subject><subject>Hydrochloric acid</subject><subject>Industrial pollution</subject><subject>Iron compounds</subject><subject>Iron sulfates</subject><subject>Leachates</subject><subject>Leaching</subject><subject>Pore size</subject><subject>Quality standards</subject><subject>Reducing agents</subject><subject>Risk assessment</subject><subject>Sewage sludge</subject><subject>Sludge</subject><subject>Soil contamination</subject><subject>Soil investigations</subject><subject>Soil pollution</subject><subject>Soil remediation</subject><subject>Soil stabilization</subject><subject>Soils</subject><subject>Sulfates</subject><subject>Sulfur content</subject><subject>Surface water</subject><subject>Surveys</subject><subject>X-ray diffraction</subject><issn>1687-8086</issn><issn>1687-8094</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>RHX</sourceid><sourceid>N95</sourceid><sourceid>BENPR</sourceid><sourceid>DOA</sourceid><recordid>eNqFkstrFTEUxgdRsNTuXEvAjaLT5jV5LK-D1QsVwatuQyaPuSlzk2syQ-nKf93UKdWFIFmccPh9HycnX9M8R_Acoa67wBDDC9ZhxIh41JwgJngroKSPH-6CPW3OSgkDpJRjgTE6aX72e521mV0OZQ6mAB0t2ByPUzB6DikWkDzYuRs9OrCbFlvLu5BMFYFPyQYfnAXDLbh0OaelgN0yeT074FMGX9zB2VBd4gj6_Or79nXbpzjrQ4gVsWCXwlSeNU-8noo7u6-nzbfL91_7j-3V5w_bfnPVmo7IuR2EJoxYi4hElFHMPdHQMDFo1nXSSE9cB7lHFkvkPfYYQ2cHhLk1iHOPyWmzXX1t0tfqmMNB51uVdFC_GymPSue6gMkpKiFHVlrKoafUICGJH0wnrEAGuY5Xr5er1zGnH4srs7pOS451fIUplYJTBEWlzldq1NU0RJ_muuh6rDsEk6LzofY3THIoIRGoCt7-JRiWEqKrvxVLGPdzGfVSyj9xk1Mp2fmHVyGo7hKh7hKh7hNR8Tcrvg_R6pvwP_rFSrvKOK__0AhjzAj5BQWJvds</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Chen, Jin-Hong</creator><creator>Ning, Zhi</creator><creator>Zhang, Ting-Ting</creator><creator>Li, Yuan-Yuan</creator><general>Hindawi Publishing Corporation</general><general>Hindawi</general><general>John Wiley & Sons, Inc</general><general>Hindawi Limited</general><scope>ADJCN</scope><scope>AHFXO</scope><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>DWQXO</scope><scope>FR3</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0001-5095-3676</orcidid><orcidid>https://orcid.org/0000-0003-3827-7577</orcidid></search><sort><creationdate>2020</creationdate><title>Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils</title><author>Chen, Jin-Hong ; Ning, Zhi ; Zhang, Ting-Ting ; Li, Yuan-Yuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c539t-b8a363dd139146427f3a0c68ba6559c9f3e507f1d291ff2f220edb127dc177f23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Alkaline digestion</topic><topic>Aquatic resources</topic><topic>Aqueous solutions</topic><topic>Bioavailability</topic><topic>Charcoal</topic><topic>China</topic><topic>Chromium</topic><topic>Civil engineering</topic><topic>Environmental perception</topic><topic>Environmental quality</topic><topic>Geological surveys</topic><topic>Hexavalent chromium</topic><topic>Hydrochloric acid</topic><topic>Industrial pollution</topic><topic>Iron compounds</topic><topic>Iron sulfates</topic><topic>Leachates</topic><topic>Leaching</topic><topic>Pore size</topic><topic>Quality standards</topic><topic>Reducing agents</topic><topic>Risk assessment</topic><topic>Sewage sludge</topic><topic>Sludge</topic><topic>Soil contamination</topic><topic>Soil investigations</topic><topic>Soil pollution</topic><topic>Soil remediation</topic><topic>Soil stabilization</topic><topic>Soils</topic><topic>Sulfates</topic><topic>Sulfur content</topic><topic>Surface water</topic><topic>Surveys</topic><topic>X-ray diffraction</topic><toplevel>online_resources</toplevel><creatorcontrib>Chen, Jin-Hong</creatorcontrib><creatorcontrib>Ning, Zhi</creatorcontrib><creatorcontrib>Zhang, Ting-Ting</creatorcontrib><creatorcontrib>Li, Yuan-Yuan</creatorcontrib><collection>الدوريات العلمية والإحصائية - e-Marefa Academic and Statistical Periodicals</collection><collection>معرفة - المحتوى العربي الأكاديمي المتكامل - e-Marefa Academic Complete</collection><collection>Hindawi Publishing Complete</collection><collection>Hindawi Publishing Subscription Journals</collection><collection>Hindawi Publishing Open Access</collection><collection>CrossRef</collection><collection>Gale Business: Insights</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>Middle East & Africa Database</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>SciTech Premium Collection</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Advances in Civil Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Jin-Hong</au><au>Ning, Zhi</au><au>Zhang, Ting-Ting</au><au>Li, Yuan-Yuan</au><au>Hatfield, Kirk</au><au>Kirk Hatfield</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils</atitle><jtitle>Advances in Civil Engineering</jtitle><date>2020</date><risdate>2020</risdate><volume>2020</volume><issue>2020</issue><spage>1</spage><epage>10</epage><pages>1-10</pages><issn>1687-8086</issn><eissn>1687-8094</eissn><abstract>Background. Soil contamination by hexavalent chromium is becoming a main environmental concern in China. This study developed a sewage sludge biochar modified by FeSO4 (CHBC) as a new reductant for Cr(VI)-contaminated soil. The effectiveness of CHBC-stabilized Cr(VI)-contaminated soil was investigated. Methods. Typical industrial Cr(VI)-contaminated soil in China was chosen as the medium. The total and Cr(VI) contents of the contaminated soil were 1014.6 and 973.5 mg/kg, respectively. The effectiveness of the Cr(VI)-contaminated soil stabilized by CHBC was investigated by the leaching test (US EPA method 1312), the simplified bioaccessibility extraction test (US EPA 2007 protocol and British Geological Survey), alkaline digestion (US EPA method 3060A), sequential extraction (BCR sequential extraction procedure), X-ray diffraction, and the risk assessment code test. Results. Results show that CHBC substantially reduced the leachability and Cr(VI) content of the contaminated soil. The leachability and content of Cr(VI) were lower than the thresholds of the Environmental Quality Standards of Soil in China for civil reuse and the China Environmental Quality Standards of surface water for civil use when the soil was stabilized with 10% dosage of CHBC. Conclusion. CHBC is highly efficient in stabilizing Cr(VI) and can effectively reduce the leachability and bioavailability of Cr in contaminated soil and thus feasible for stabilizing Cr(VI)-contaminated soil and shows potential for application in the field.</abstract><cop>Cairo, Egypt</cop><pub>Hindawi Publishing Corporation</pub><doi>10.1155/2020/6521638</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-5095-3676</orcidid><orcidid>https://orcid.org/0000-0003-3827-7577</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Alkaline digestion Aquatic resources Aqueous solutions Bioavailability Charcoal China Chromium Civil engineering Environmental perception Environmental quality Geological surveys Hexavalent chromium Hydrochloric acid Industrial pollution Iron compounds Iron sulfates Leachates Leaching Pore size Quality standards Reducing agents Risk assessment Sewage sludge Sludge Soil contamination Soil investigations Soil pollution Soil remediation Soil stabilization Soils Sulfates Sulfur content Surface water Surveys X-ray diffraction |
| title | Characteristics and Applications of Sewage Sludge Biochar Modified by Ferrous Sulfate for Remediating Cr(VI)-Contaminated Soils |
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