Hexavalent chromium removal by ferrochromium slag
The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentration s of water contacted with ferrochromium slag (W/FS = 10) in a closed cycle after 50 batches were found as 0.61 mg/l. Also, reductio...
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| Veröffentlicht in: | Journal of hazardous materials 2005-11, Vol.126 (1), p.176-182 |
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| creator | Erdem, Mehmet Altundoğan, H. Soner Turan, M. Deniz Tümen, Fikret |
| description | The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentration
s of water contacted with ferrochromium slag (W/FS
=
10) in a closed cycle after 50 batches were found as 0.61
mg/l. Also, reduction of Cr(VI) to Cr(III) and a subsequent precipitation of Cr(III) by using ferrochrome slag (FS) in a model solution has been aimed. The effects of amount of acid, contact time, FS dosage, initial Cr(VI) concentration and temperature on the Cr(VI) reduction have been studied through the batch runs. The amount of acid has been found to be the most effective parameter affecting the Cr(VI) reduction. A 10
g/l FS dosage and 3.5
ml/l H
2SO
4 (5
M) are sufficient to reduce all Cr(VI) in the model solution containing 10
mg/l Cr(VI) and for contact time of 60
min at 25
°C. In reduced solutions, precipitation of metal ions has been studied by using extra FS. A 60
g/l dosage of fresh FS can precipitate all Cr(III) and Fe ions in the reduced solution. Thus, it has been demonstrated that the treatment of jigging water stream to be generated in a ferrochrome plant containing Cr(VI) can be accomplished by using ferrochromium slag and sulphuric acid. Also, it has been determined that solid residues of the process are environmentally stable by applying TCLP test. |
| doi_str_mv | 10.1016/j.jhazmat.2005.06.017 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_29682786</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0304389405003432</els_id><sourcerecordid>29682786</sourcerecordid><originalsourceid>FETCH-LOGICAL-c461t-4abdca2209adc76d438cb32b8cd4cb8880cf4614ba6d828c569f2ed09c47a9433</originalsourceid><addsrcrecordid>eNqFkE1Lw0AQhhdRbK3-BKUXvSXOfmSzOYkUtULBi56XzezGJiRN3U2L9deb0mCPngZmnpl5eQi5phBToPK-iqul-WlMFzOAJAYZA01PyJiqlEecc3lKxsBBRFxlYkQuQqgAeiQR52REJWRKShgTOnffZmtqt-qmuPRtU26aqXdN2_em-W5aOO_bv0GozeclOStMHdzVUCfk4_npfTaPFm8vr7PHRYRC0i4SJrdoGIPMWEylFVxhzlmu0ArMlVKARQ-K3EirmMJEZgVzFjIUqckE5xNyd7i79u3XxoVON2VAV9dm5dpN0CyTiqVK9mByANG3IXhX6LUvG-N3moLeu9KVHlzpvSsNUvci-r2b4cEmb5w9bg1yeuB2AExAUxferLAMRy6lGZNqn_ThwLlex7Z0Xgcs3QqdLb3DTtu2_CfKL54jinM</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>29682786</pqid></control><display><type>article</type><title>Hexavalent chromium removal by ferrochromium slag</title><source>MEDLINE</source><source>ScienceDirect Journals (5 years ago - present)</source><creator>Erdem, Mehmet ; Altundoğan, H. Soner ; Turan, M. Deniz ; Tümen, Fikret</creator><creatorcontrib>Erdem, Mehmet ; Altundoğan, H. Soner ; Turan, M. Deniz ; Tümen, Fikret</creatorcontrib><description>The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentration
s of water contacted with ferrochromium slag (W/FS
=
10) in a closed cycle after 50 batches were found as 0.61
mg/l. Also, reduction of Cr(VI) to Cr(III) and a subsequent precipitation of Cr(III) by using ferrochrome slag (FS) in a model solution has been aimed. The effects of amount of acid, contact time, FS dosage, initial Cr(VI) concentration and temperature on the Cr(VI) reduction have been studied through the batch runs. The amount of acid has been found to be the most effective parameter affecting the Cr(VI) reduction. A 10
g/l FS dosage and 3.5
ml/l H
2SO
4 (5
M) are sufficient to reduce all Cr(VI) in the model solution containing 10
mg/l Cr(VI) and for contact time of 60
min at 25
°C. In reduced solutions, precipitation of metal ions has been studied by using extra FS. A 60
g/l dosage of fresh FS can precipitate all Cr(III) and Fe ions in the reduced solution. Thus, it has been demonstrated that the treatment of jigging water stream to be generated in a ferrochrome plant containing Cr(VI) can be accomplished by using ferrochromium slag and sulphuric acid. Also, it has been determined that solid residues of the process are environmentally stable by applying TCLP test.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2005.06.017</identifier><identifier>PMID: 16098660</identifier><identifier>CODEN: JHMAD9</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Calcium Carbonate ; Carbonates ; Chromium - isolation & purification ; Chromium Alloys - chemistry ; Citrates ; Continental surface waters ; Drug Combinations ; Exact sciences and technology ; Ferrochromium slag ; Heavy metal removal ; Hexavalent chromium ; Hydrogen-Ion Concentration ; Industrial Waste - prevention & control ; Magnesium Oxide ; Natural water pollution ; Osmolar Concentration ; Other industrial wastes. Sewage sludge ; Pollution ; Reduction ; TCLP ; Temperature ; Wastes ; Water ; Water treatment and pollution</subject><ispartof>Journal of hazardous materials, 2005-11, Vol.126 (1), p.176-182</ispartof><rights>2005 Elsevier B.V.</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c461t-4abdca2209adc76d438cb32b8cd4cb8880cf4614ba6d828c569f2ed09c47a9433</citedby><cites>FETCH-LOGICAL-c461t-4abdca2209adc76d438cb32b8cd4cb8880cf4614ba6d828c569f2ed09c47a9433</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jhazmat.2005.06.017$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17192683$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16098660$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Erdem, Mehmet</creatorcontrib><creatorcontrib>Altundoğan, H. Soner</creatorcontrib><creatorcontrib>Turan, M. Deniz</creatorcontrib><creatorcontrib>Tümen, Fikret</creatorcontrib><title>Hexavalent chromium removal by ferrochromium slag</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentration
s of water contacted with ferrochromium slag (W/FS
=
10) in a closed cycle after 50 batches were found as 0.61
mg/l. Also, reduction of Cr(VI) to Cr(III) and a subsequent precipitation of Cr(III) by using ferrochrome slag (FS) in a model solution has been aimed. The effects of amount of acid, contact time, FS dosage, initial Cr(VI) concentration and temperature on the Cr(VI) reduction have been studied through the batch runs. The amount of acid has been found to be the most effective parameter affecting the Cr(VI) reduction. A 10
g/l FS dosage and 3.5
ml/l H
2SO
4 (5
M) are sufficient to reduce all Cr(VI) in the model solution containing 10
mg/l Cr(VI) and for contact time of 60
min at 25
°C. In reduced solutions, precipitation of metal ions has been studied by using extra FS. A 60
g/l dosage of fresh FS can precipitate all Cr(III) and Fe ions in the reduced solution. Thus, it has been demonstrated that the treatment of jigging water stream to be generated in a ferrochrome plant containing Cr(VI) can be accomplished by using ferrochromium slag and sulphuric acid. Also, it has been determined that solid residues of the process are environmentally stable by applying TCLP test.</description><subject>Applied sciences</subject><subject>Calcium Carbonate</subject><subject>Carbonates</subject><subject>Chromium - isolation & purification</subject><subject>Chromium Alloys - chemistry</subject><subject>Citrates</subject><subject>Continental surface waters</subject><subject>Drug Combinations</subject><subject>Exact sciences and technology</subject><subject>Ferrochromium slag</subject><subject>Heavy metal removal</subject><subject>Hexavalent chromium</subject><subject>Hydrogen-Ion Concentration</subject><subject>Industrial Waste - prevention & control</subject><subject>Magnesium Oxide</subject><subject>Natural water pollution</subject><subject>Osmolar Concentration</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>Pollution</subject><subject>Reduction</subject><subject>TCLP</subject><subject>Temperature</subject><subject>Wastes</subject><subject>Water</subject><subject>Water treatment and pollution</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkE1Lw0AQhhdRbK3-BKUXvSXOfmSzOYkUtULBi56XzezGJiRN3U2L9deb0mCPngZmnpl5eQi5phBToPK-iqul-WlMFzOAJAYZA01PyJiqlEecc3lKxsBBRFxlYkQuQqgAeiQR52REJWRKShgTOnffZmtqt-qmuPRtU26aqXdN2_em-W5aOO_bv0GozeclOStMHdzVUCfk4_npfTaPFm8vr7PHRYRC0i4SJrdoGIPMWEylFVxhzlmu0ArMlVKARQ-K3EirmMJEZgVzFjIUqckE5xNyd7i79u3XxoVON2VAV9dm5dpN0CyTiqVK9mByANG3IXhX6LUvG-N3moLeu9KVHlzpvSsNUvci-r2b4cEmb5w9bg1yeuB2AExAUxferLAMRy6lGZNqn_ThwLlex7Z0Xgcs3QqdLb3DTtu2_CfKL54jinM</recordid><startdate>20051111</startdate><enddate>20051111</enddate><creator>Erdem, Mehmet</creator><creator>Altundoğan, H. Soner</creator><creator>Turan, M. Deniz</creator><creator>Tümen, Fikret</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>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20051111</creationdate><title>Hexavalent chromium removal by ferrochromium slag</title><author>Erdem, Mehmet ; Altundoğan, H. Soner ; Turan, M. Deniz ; Tümen, Fikret</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c461t-4abdca2209adc76d438cb32b8cd4cb8880cf4614ba6d828c569f2ed09c47a9433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Calcium Carbonate</topic><topic>Carbonates</topic><topic>Chromium - isolation & purification</topic><topic>Chromium Alloys - chemistry</topic><topic>Citrates</topic><topic>Continental surface waters</topic><topic>Drug Combinations</topic><topic>Exact sciences and technology</topic><topic>Ferrochromium slag</topic><topic>Heavy metal removal</topic><topic>Hexavalent chromium</topic><topic>Hydrogen-Ion Concentration</topic><topic>Industrial Waste - prevention & control</topic><topic>Magnesium Oxide</topic><topic>Natural water pollution</topic><topic>Osmolar Concentration</topic><topic>Other industrial wastes. Sewage sludge</topic><topic>Pollution</topic><topic>Reduction</topic><topic>TCLP</topic><topic>Temperature</topic><topic>Wastes</topic><topic>Water</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Erdem, Mehmet</creatorcontrib><creatorcontrib>Altundoğan, H. Soner</creatorcontrib><creatorcontrib>Turan, M. Deniz</creatorcontrib><creatorcontrib>Tümen, Fikret</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>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>Erdem, Mehmet</au><au>Altundoğan, H. Soner</au><au>Turan, M. Deniz</au><au>Tümen, Fikret</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hexavalent chromium removal by ferrochromium slag</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2005-11-11</date><risdate>2005</risdate><volume>126</volume><issue>1</issue><spage>176</spage><epage>182</epage><pages>176-182</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>The aim of this study is to demonstrate the potential of Cr(VI) generation during jigging operation applied for ferrochrome recovery from slag. The Cr(VI) concentration
s of water contacted with ferrochromium slag (W/FS
=
10) in a closed cycle after 50 batches were found as 0.61
mg/l. Also, reduction of Cr(VI) to Cr(III) and a subsequent precipitation of Cr(III) by using ferrochrome slag (FS) in a model solution has been aimed. The effects of amount of acid, contact time, FS dosage, initial Cr(VI) concentration and temperature on the Cr(VI) reduction have been studied through the batch runs. The amount of acid has been found to be the most effective parameter affecting the Cr(VI) reduction. A 10
g/l FS dosage and 3.5
ml/l H
2SO
4 (5
M) are sufficient to reduce all Cr(VI) in the model solution containing 10
mg/l Cr(VI) and for contact time of 60
min at 25
°C. In reduced solutions, precipitation of metal ions has been studied by using extra FS. A 60
g/l dosage of fresh FS can precipitate all Cr(III) and Fe ions in the reduced solution. Thus, it has been demonstrated that the treatment of jigging water stream to be generated in a ferrochrome plant containing Cr(VI) can be accomplished by using ferrochromium slag and sulphuric acid. Also, it has been determined that solid residues of the process are environmentally stable by applying TCLP test.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>16098660</pmid><doi>10.1016/j.jhazmat.2005.06.017</doi><tpages>7</tpages></addata></record> |
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| subjects | Applied sciences Calcium Carbonate Carbonates Chromium - isolation & purification Chromium Alloys - chemistry Citrates Continental surface waters Drug Combinations Exact sciences and technology Ferrochromium slag Heavy metal removal Hexavalent chromium Hydrogen-Ion Concentration Industrial Waste - prevention & control Magnesium Oxide Natural water pollution Osmolar Concentration Other industrial wastes. Sewage sludge Pollution Reduction TCLP Temperature Wastes Water Water treatment and pollution |
| title | Hexavalent chromium removal by ferrochromium slag |
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