Magnetic Fixed-bed Column for Cr(VI) Removal from Aqueous Solution Using Schwertmannite
The fine particles of schwertmannite as an iron oxyhydroxide adsorbent has been suggested as a novel and strong Cr(VI) sorbent for treatment of Cr-contaminated industrial wastewater. The removal process was conducted in both batch and continuous trials. As a result of the batch experiments, the maxi...
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| Veröffentlicht in: | ISIJ International 2008/02/15, Vol.48(2), pp.240-244 |
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| creator | Eskandarpour, Akbar Onyango, Maurice S. Tanahashi, Mitsuru Ochieng, Aoyi Bando, Yoshiyuki Iwai, Kazuhiko Okido, Masazumi Asai, Shigeo |
| description | The fine particles of schwertmannite as an iron oxyhydroxide adsorbent has been suggested as a novel and strong Cr(VI) sorbent for treatment of Cr-contaminated industrial wastewater. The removal process was conducted in both batch and continuous trials. As a result of the batch experiments, the maximal adsorption capacity of the schwertmannite was obtained as 178 mg/g which was quite high amount in comparison with the usual applied Cr(VI) sorbents in the literatures. The continuous removal process involved a combination of a fixed bed column with a high gradient magnetic field which was firstly introduced as a novel designation of a fixed bed column to overcome the difficulties accompanied with the application of some especial fine particle adsorbents through the fixed-beds. The experimental results revealed that the magnetization force had a great function in this process to control the shape and the fitness of the bed during the sorption test as well as to simplify the experimental set-up. |
| doi_str_mv | 10.2355/isijinternational.48.240 |
| format | Article |
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The removal process was conducted in both batch and continuous trials. As a result of the batch experiments, the maximal adsorption capacity of the schwertmannite was obtained as 178 mg/g which was quite high amount in comparison with the usual applied Cr(VI) sorbents in the literatures. The continuous removal process involved a combination of a fixed bed column with a high gradient magnetic field which was firstly introduced as a novel designation of a fixed bed column to overcome the difficulties accompanied with the application of some especial fine particle adsorbents through the fixed-beds. The experimental results revealed that the magnetization force had a great function in this process to control the shape and the fitness of the bed during the sorption test as well as to simplify the experimental set-up.</description><identifier>ISSN: 0915-1559</identifier><identifier>EISSN: 1347-5460</identifier><identifier>DOI: 10.2355/isijinternational.48.240</identifier><language>eng</language><publisher>Tokyo: The Iron and Steel Institute of Japan</publisher><subject>Applied sciences ; Cr removal ; electromagnetic processing of materials ; Exact sciences and technology ; high magnetic field ; magnetic fixed bed column ; Metals. 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The removal process was conducted in both batch and continuous trials. As a result of the batch experiments, the maximal adsorption capacity of the schwertmannite was obtained as 178 mg/g which was quite high amount in comparison with the usual applied Cr(VI) sorbents in the literatures. The continuous removal process involved a combination of a fixed bed column with a high gradient magnetic field which was firstly introduced as a novel designation of a fixed bed column to overcome the difficulties accompanied with the application of some especial fine particle adsorbents through the fixed-beds. The experimental results revealed that the magnetization force had a great function in this process to control the shape and the fitness of the bed during the sorption test as well as to simplify the experimental set-up.</description><subject>Applied sciences</subject><subject>Cr removal</subject><subject>electromagnetic processing of materials</subject><subject>Exact sciences and technology</subject><subject>high magnetic field</subject><subject>magnetic fixed bed column</subject><subject>Metals. 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Metallurgy</topic><topic>schwertmannite</topic><topic>wastewater treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Eskandarpour, Akbar</creatorcontrib><creatorcontrib>Onyango, Maurice S.</creatorcontrib><creatorcontrib>Tanahashi, Mitsuru</creatorcontrib><creatorcontrib>Ochieng, Aoyi</creatorcontrib><creatorcontrib>Bando, Yoshiyuki</creatorcontrib><creatorcontrib>Iwai, Kazuhiko</creatorcontrib><creatorcontrib>Okido, Masazumi</creatorcontrib><creatorcontrib>Asai, Shigeo</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>ISIJ International</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Eskandarpour, Akbar</au><au>Onyango, Maurice S.</au><au>Tanahashi, Mitsuru</au><au>Ochieng, Aoyi</au><au>Bando, Yoshiyuki</au><au>Iwai, Kazuhiko</au><au>Okido, Masazumi</au><au>Asai, Shigeo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic Fixed-bed Column for Cr(VI) Removal from Aqueous Solution Using Schwertmannite</atitle><jtitle>ISIJ International</jtitle><addtitle>ISIJ Int.</addtitle><date>2008-01-01</date><risdate>2008</risdate><volume>48</volume><issue>2</issue><spage>240</spage><epage>244</epage><pages>240-244</pages><issn>0915-1559</issn><eissn>1347-5460</eissn><abstract>The fine particles of schwertmannite as an iron oxyhydroxide adsorbent has been suggested as a novel and strong Cr(VI) sorbent for treatment of Cr-contaminated industrial wastewater. The removal process was conducted in both batch and continuous trials. As a result of the batch experiments, the maximal adsorption capacity of the schwertmannite was obtained as 178 mg/g which was quite high amount in comparison with the usual applied Cr(VI) sorbents in the literatures. The continuous removal process involved a combination of a fixed bed column with a high gradient magnetic field which was firstly introduced as a novel designation of a fixed bed column to overcome the difficulties accompanied with the application of some especial fine particle adsorbents through the fixed-beds. The experimental results revealed that the magnetization force had a great function in this process to control the shape and the fitness of the bed during the sorption test as well as to simplify the experimental set-up.</abstract><cop>Tokyo</cop><pub>The Iron and Steel Institute of Japan</pub><doi>10.2355/isijinternational.48.240</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Applied sciences Cr removal electromagnetic processing of materials Exact sciences and technology high magnetic field magnetic fixed bed column Metals. Metallurgy schwertmannite wastewater treatment |
| title | Magnetic Fixed-bed Column for Cr(VI) Removal from Aqueous Solution Using Schwertmannite |
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