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High-temperature reduction of chromium (VI) in solid alkali
Chromium (VI) that exists in many industrial wastes is considered highly toxic. One of the most common ways to dispose of these wastes is to reduce chromium (VI) to chromium (III), which is less toxic and can be relatively easily removed or fixed. However, the reduction of chromium (VI) is often con...
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| Published in: | Journal of hazardous materials 2004-08, Vol.112 (1), p.63-69 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c453t-2a9e917546e2e1341ec220514fde088ef323bfbcfd171ec976e52897988f83a93 |
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| cites | cdi_FETCH-LOGICAL-c453t-2a9e917546e2e1341ec220514fde088ef323bfbcfd171ec976e52897988f83a93 |
| container_end_page | 69 |
| container_issue | 1 |
| container_start_page | 63 |
| container_title | Journal of hazardous materials |
| container_volume | 112 |
| creator | Wang, Tiangui Li, Zuohu |
| description | Chromium (VI) that exists in many industrial wastes is considered highly toxic. One of the most common ways to dispose of these wastes is to reduce chromium (VI) to chromium (III), which is less toxic and can be relatively easily removed or fixed. However, the reduction of chromium (VI) is often conducted in acidic solutions and the chromium (VI) in alkaline solid wastes is hardly to be fully removed. The present study describes a new method for reducing chromium (VI) in alkaline solid. By mixing alkaline solids containing chromium (VI) with an aqueous sucrose solution and then calcinating the resulting mixture at 400–600
°C in inertial gas, chromium (VI) can be easily reduced to an insoluble chromium oxide. The reduced fraction can reach up to 99% in 10–20
min under the conditions of temperature above 600
°C and sucrose/chromium
(
VI)≥1
g/1
g
. |
| doi_str_mv | 10.1016/j.jhazmat.2004.03.022 |
| format | article |
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°C in inertial gas, chromium (VI) can be easily reduced to an insoluble chromium oxide. The reduced fraction can reach up to 99% in 10–20
min under the conditions of temperature above 600
°C and sucrose/chromium
(
VI)≥1
g/1
g
.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2004.03.022</identifier><identifier>PMID: 15225931</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Alkalies - chemistry ; Alkaline solid ; Applied sciences ; Calcination ; Chromium - chemistry ; Exact sciences and technology ; Hexavalent chromium ; Hot Temperature ; Industrial Waste - prevention & control ; Other industrial wastes. Sewage sludge ; Oxidation-Reduction ; Pollution ; Reduction ; Removal ; Sodium Bicarbonate - chemistry ; Starch - chemistry ; Sucrose - chemistry ; Temperature ; Wastes</subject><ispartof>Journal of hazardous materials, 2004-08, Vol.112 (1), p.63-69</ispartof><rights>2004 Elsevier B.V.</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c453t-2a9e917546e2e1341ec220514fde088ef323bfbcfd171ec976e52897988f83a93</citedby><cites>FETCH-LOGICAL-c453t-2a9e917546e2e1341ec220514fde088ef323bfbcfd171ec976e52897988f83a93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15938023$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15225931$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Tiangui</creatorcontrib><creatorcontrib>Li, Zuohu</creatorcontrib><title>High-temperature reduction of chromium (VI) in solid alkali</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>Chromium (VI) that exists in many industrial wastes is considered highly toxic. One of the most common ways to dispose of these wastes is to reduce chromium (VI) to chromium (III), which is less toxic and can be relatively easily removed or fixed. However, the reduction of chromium (VI) is often conducted in acidic solutions and the chromium (VI) in alkaline solid wastes is hardly to be fully removed. The present study describes a new method for reducing chromium (VI) in alkaline solid. By mixing alkaline solids containing chromium (VI) with an aqueous sucrose solution and then calcinating the resulting mixture at 400–600
°C in inertial gas, chromium (VI) can be easily reduced to an insoluble chromium oxide. The reduced fraction can reach up to 99% in 10–20
min under the conditions of temperature above 600
°C and sucrose/chromium
(
VI)≥1
g/1
g
.</description><subject>Alkalies - chemistry</subject><subject>Alkaline solid</subject><subject>Applied sciences</subject><subject>Calcination</subject><subject>Chromium - chemistry</subject><subject>Exact sciences and technology</subject><subject>Hexavalent chromium</subject><subject>Hot Temperature</subject><subject>Industrial Waste - prevention & control</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>Oxidation-Reduction</subject><subject>Pollution</subject><subject>Reduction</subject><subject>Removal</subject><subject>Sodium Bicarbonate - chemistry</subject><subject>Starch - chemistry</subject><subject>Sucrose - chemistry</subject><subject>Temperature</subject><subject>Wastes</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMoun78BKUXRQ-tSSbdJngQEb9A8KJeQzaduFn7sSatoL_eLlvQm6c5zPPOOzyEHDKaMcqm54tsMTfftekyTqnIKGSU8w0yYbKAFACmm2RCgYoUpBI7ZDfGBaWUFbnYJjss5zxXwCbk4t6_zdMO6yUG0_UBk4BlbzvfNknrEjsPbe37Ojl9fThLfJPEtvJlYqp3U_l9suVMFfFgnHvk5fbm-fo-fXy6e7i-ekytyKFLuVGoVsVT5MhAMLSc05wJVyKVEh1wmLmZdSUrhp0qpphzqQolpZNgFOyRk_XdZWg_eoydrn20WFWmwbaPmiuuhBT8X5CJgvEilwOYr0Eb2hgDOr0MvjbhSzOqV3r1Qo969UqvpqAHvUPuaCzoZzWWv6nR5wAcj4CJ1lQumMb6-IdTICmHgbtcczh4-_QYdLQeG4ulD2g7Xbb-n1d-AAOcmUs</recordid><startdate>20040809</startdate><enddate>20040809</enddate><creator>Wang, Tiangui</creator><creator>Li, Zuohu</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20040809</creationdate><title>High-temperature reduction of chromium (VI) in solid alkali</title><author>Wang, Tiangui ; Li, Zuohu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c453t-2a9e917546e2e1341ec220514fde088ef323bfbcfd171ec976e52897988f83a93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Alkalies - chemistry</topic><topic>Alkaline solid</topic><topic>Applied sciences</topic><topic>Calcination</topic><topic>Chromium - chemistry</topic><topic>Exact sciences and technology</topic><topic>Hexavalent chromium</topic><topic>Hot Temperature</topic><topic>Industrial Waste - prevention & control</topic><topic>Other industrial wastes. Sewage sludge</topic><topic>Oxidation-Reduction</topic><topic>Pollution</topic><topic>Reduction</topic><topic>Removal</topic><topic>Sodium Bicarbonate - chemistry</topic><topic>Starch - chemistry</topic><topic>Sucrose - chemistry</topic><topic>Temperature</topic><topic>Wastes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Tiangui</creatorcontrib><creatorcontrib>Li, Zuohu</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Tiangui</au><au>Li, Zuohu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-temperature reduction of chromium (VI) in solid alkali</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2004-08-09</date><risdate>2004</risdate><volume>112</volume><issue>1</issue><spage>63</spage><epage>69</epage><pages>63-69</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>Chromium (VI) that exists in many industrial wastes is considered highly toxic. One of the most common ways to dispose of these wastes is to reduce chromium (VI) to chromium (III), which is less toxic and can be relatively easily removed or fixed. However, the reduction of chromium (VI) is often conducted in acidic solutions and the chromium (VI) in alkaline solid wastes is hardly to be fully removed. The present study describes a new method for reducing chromium (VI) in alkaline solid. By mixing alkaline solids containing chromium (VI) with an aqueous sucrose solution and then calcinating the resulting mixture at 400–600
°C in inertial gas, chromium (VI) can be easily reduced to an insoluble chromium oxide. The reduced fraction can reach up to 99% in 10–20
min under the conditions of temperature above 600
°C and sucrose/chromium
(
VI)≥1
g/1
g
.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>15225931</pmid><doi>10.1016/j.jhazmat.2004.03.022</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0304-3894 |
| ispartof | Journal of hazardous materials, 2004-08, Vol.112 (1), p.63-69 |
| issn | 0304-3894 1873-3336 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_29294842 |
| source | ScienceDirect Freedom Collection |
| subjects | Alkalies - chemistry Alkaline solid Applied sciences Calcination Chromium - chemistry Exact sciences and technology Hexavalent chromium Hot Temperature Industrial Waste - prevention & control Other industrial wastes. Sewage sludge Oxidation-Reduction Pollution Reduction Removal Sodium Bicarbonate - chemistry Starch - chemistry Sucrose - chemistry Temperature Wastes |
| title | High-temperature reduction of chromium (VI) in solid alkali |
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