Electro-assisted adsorption of heavy metals from aqueous solutions by biochar
Electro-assisted adsorption was investigated for Pb , Cu and Ni removal using date seed biochar (DSB-Electro). Compared with pristine biochar, the results showed that DSB-Electro effectively increased the adsorption capacity of Pb , Cu and Ni by 21% to 94%. Significant differences were observed betw...
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| Veröffentlicht in: | Water science and technology 2020-02, Vol.81 (4), p.801-812 |
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| creator | Mahdi, Zainab El Hanandeh, Ali Jimmy Yu, Qiming |
| description | Electro-assisted adsorption was investigated for Pb
, Cu
and Ni
removal using date seed biochar (DSB-Electro). Compared with pristine biochar, the results showed that DSB-Electro effectively increased the adsorption capacity of Pb
, Cu
and Ni
by 21% to 94%. Significant differences were observed between Pb
and Cu
adsorption compared with Ni
, which could be explained based on ion polarizing power. Under the same voltage, Ni
solution shows the highest electric conductivity; thereby more Ni
is transported to the biochar anode, giving them a greater chance to interact with the surface groups. Electro-assisted adsorption occurred rapidly as around 88% of Pb
and Ni
adsorbed within the first 3 h, while 96% of Cu
occurred within the first hour of contact. Reversing the polarity did not seem to cause significant desorption of the adsorbed ions as the amount released from reversing polarity was less than 38%, indicating that only a small fraction of the ions was held by the electrostatic charge introduced by the current. It was likely that the enhanced charge facilitated other adsorption mechanisms by bringing the ions in contact with the biochar initially via electrostatic force. Electro-assisted adsorption can improve the biochar economic feasibility for metals removal (particularly Ni
) from industrial streams. |
| doi_str_mv | 10.2166/wst.2020.163 |
| format | Article |
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, Cu
and Ni
removal using date seed biochar (DSB-Electro). Compared with pristine biochar, the results showed that DSB-Electro effectively increased the adsorption capacity of Pb
, Cu
and Ni
by 21% to 94%. Significant differences were observed between Pb
and Cu
adsorption compared with Ni
, which could be explained based on ion polarizing power. Under the same voltage, Ni
solution shows the highest electric conductivity; thereby more Ni
is transported to the biochar anode, giving them a greater chance to interact with the surface groups. Electro-assisted adsorption occurred rapidly as around 88% of Pb
and Ni
adsorbed within the first 3 h, while 96% of Cu
occurred within the first hour of contact. Reversing the polarity did not seem to cause significant desorption of the adsorbed ions as the amount released from reversing polarity was less than 38%, indicating that only a small fraction of the ions was held by the electrostatic charge introduced by the current. It was likely that the enhanced charge facilitated other adsorption mechanisms by bringing the ions in contact with the biochar initially via electrostatic force. Electro-assisted adsorption can improve the biochar economic feasibility for metals removal (particularly Ni
) from industrial streams.</description><identifier>ISSN: 0273-1223</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2020.163</identifier><identifier>PMID: 32460283</identifier><language>eng</language><publisher>England: IWA Publishing</publisher><subject>Acids ; Adsorbents ; Adsorption ; Aqueous solutions ; Cadmium ; Carbon ; Charcoal ; Chemicals ; Copper ; Economic feasibility ; Efficiency ; Electric contacts ; Electrical resistivity ; Electrodes ; Electrostatic charge ; Electrostatic properties ; Experiments ; Feasibility studies ; Heavy metals ; Ions ; Lead ; Metals ; Metals, Heavy ; Methods ; Nickel ; Polarity ; Removal</subject><ispartof>Water science and technology, 2020-02, Vol.81 (4), p.801-812</ispartof><rights>Copyright IWA Publishing Feb 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-95f9e2d4c545bfdfad5fe3ff05b8175b6473ba8a59641f07df994edb5bbd54883</citedby><cites>FETCH-LOGICAL-c357t-95f9e2d4c545bfdfad5fe3ff05b8175b6473ba8a59641f07df994edb5bbd54883</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32460283$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Mahdi, Zainab</creatorcontrib><creatorcontrib>El Hanandeh, Ali</creatorcontrib><creatorcontrib>Jimmy Yu, Qiming</creatorcontrib><title>Electro-assisted adsorption of heavy metals from aqueous solutions by biochar</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>Electro-assisted adsorption was investigated for Pb
, Cu
and Ni
removal using date seed biochar (DSB-Electro). Compared with pristine biochar, the results showed that DSB-Electro effectively increased the adsorption capacity of Pb
, Cu
and Ni
by 21% to 94%. Significant differences were observed between Pb
and Cu
adsorption compared with Ni
, which could be explained based on ion polarizing power. Under the same voltage, Ni
solution shows the highest electric conductivity; thereby more Ni
is transported to the biochar anode, giving them a greater chance to interact with the surface groups. Electro-assisted adsorption occurred rapidly as around 88% of Pb
and Ni
adsorbed within the first 3 h, while 96% of Cu
occurred within the first hour of contact. Reversing the polarity did not seem to cause significant desorption of the adsorbed ions as the amount released from reversing polarity was less than 38%, indicating that only a small fraction of the ions was held by the electrostatic charge introduced by the current. It was likely that the enhanced charge facilitated other adsorption mechanisms by bringing the ions in contact with the biochar initially via electrostatic force. Electro-assisted adsorption can improve the biochar economic feasibility for metals removal (particularly Ni
) from industrial streams.</description><subject>Acids</subject><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Aqueous solutions</subject><subject>Cadmium</subject><subject>Carbon</subject><subject>Charcoal</subject><subject>Chemicals</subject><subject>Copper</subject><subject>Economic feasibility</subject><subject>Efficiency</subject><subject>Electric contacts</subject><subject>Electrical resistivity</subject><subject>Electrodes</subject><subject>Electrostatic charge</subject><subject>Electrostatic properties</subject><subject>Experiments</subject><subject>Feasibility studies</subject><subject>Heavy metals</subject><subject>Ions</subject><subject>Lead</subject><subject>Metals</subject><subject>Metals, Heavy</subject><subject>Methods</subject><subject>Nickel</subject><subject>Polarity</subject><subject>Removal</subject><issn>0273-1223</issn><issn>1996-9732</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpd0L1LAzEYx_Egiq3VzVkCLg5ezevlMkqpL1Bx0Tkkl4ReuWtqcqf0vzeH1cHpWT48_PgCcInRnOCyvPtK_Zwggua4pEdgiqUsCykoOQZTRAQtMCF0As5S2iCEBGXoFEwoYSUiFZ2Cl2Xr6j6GQqfUpN5ZqG0Kcdc3YQuDh2unP_ewc71uE_QxdFB_DC4MCabQDqNK0OyhaUK91vEcnPgM3cXhzsD7w_Jt8VSsXh-fF_eroqZc9IXkXjpiWc0ZN956bbl31HvETYUFNyUT1OhKc1ky7JGwXkrmrOHGWM6qis7Azc_fXQx5TupV16Tata3ejtsUYUjwignGM73-RzdhiNu8blSVLDmtaFa3P6qOIaXovNrFptNxrzBSY2aVM6sxs8qZM786PB1M5-wf_u1KvwFoq3ks</recordid><startdate>20200215</startdate><enddate>20200215</enddate><creator>Mahdi, Zainab</creator><creator>El Hanandeh, Ali</creator><creator>Jimmy Yu, Qiming</creator><general>IWA Publishing</general><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>3V.</scope><scope>7QH</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>7X8</scope></search><sort><creationdate>20200215</creationdate><title>Electro-assisted adsorption of heavy metals from aqueous solutions by biochar</title><author>Mahdi, Zainab ; El Hanandeh, Ali ; Jimmy Yu, Qiming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-95f9e2d4c545bfdfad5fe3ff05b8175b6473ba8a59641f07df994edb5bbd54883</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Acids</topic><topic>Adsorbents</topic><topic>Adsorption</topic><topic>Aqueous solutions</topic><topic>Cadmium</topic><topic>Carbon</topic><topic>Charcoal</topic><topic>Chemicals</topic><topic>Copper</topic><topic>Economic feasibility</topic><topic>Efficiency</topic><topic>Electric contacts</topic><topic>Electrical resistivity</topic><topic>Electrodes</topic><topic>Electrostatic charge</topic><topic>Electrostatic properties</topic><topic>Experiments</topic><topic>Feasibility studies</topic><topic>Heavy metals</topic><topic>Ions</topic><topic>Lead</topic><topic>Metals</topic><topic>Metals, Heavy</topic><topic>Methods</topic><topic>Nickel</topic><topic>Polarity</topic><topic>Removal</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mahdi, Zainab</creatorcontrib><creatorcontrib>El Hanandeh, Ali</creatorcontrib><creatorcontrib>Jimmy Yu, Qiming</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</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</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</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>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Engineering Database</collection><collection>Earth, Atmospheric & Aquatic Science 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>Engineering Collection</collection><collection>MEDLINE - Academic</collection><jtitle>Water science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mahdi, Zainab</au><au>El Hanandeh, Ali</au><au>Jimmy Yu, Qiming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electro-assisted adsorption of heavy metals from aqueous solutions by biochar</atitle><jtitle>Water science and technology</jtitle><addtitle>Water Sci Technol</addtitle><date>2020-02-15</date><risdate>2020</risdate><volume>81</volume><issue>4</issue><spage>801</spage><epage>812</epage><pages>801-812</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><abstract>Electro-assisted adsorption was investigated for Pb
, Cu
and Ni
removal using date seed biochar (DSB-Electro). Compared with pristine biochar, the results showed that DSB-Electro effectively increased the adsorption capacity of Pb
, Cu
and Ni
by 21% to 94%. Significant differences were observed between Pb
and Cu
adsorption compared with Ni
, which could be explained based on ion polarizing power. Under the same voltage, Ni
solution shows the highest electric conductivity; thereby more Ni
is transported to the biochar anode, giving them a greater chance to interact with the surface groups. Electro-assisted adsorption occurred rapidly as around 88% of Pb
and Ni
adsorbed within the first 3 h, while 96% of Cu
occurred within the first hour of contact. Reversing the polarity did not seem to cause significant desorption of the adsorbed ions as the amount released from reversing polarity was less than 38%, indicating that only a small fraction of the ions was held by the electrostatic charge introduced by the current. It was likely that the enhanced charge facilitated other adsorption mechanisms by bringing the ions in contact with the biochar initially via electrostatic force. Electro-assisted adsorption can improve the biochar economic feasibility for metals removal (particularly Ni
) from industrial streams.</abstract><cop>England</cop><pub>IWA Publishing</pub><pmid>32460283</pmid><doi>10.2166/wst.2020.163</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0273-1223 |
| ispartof | Water science and technology, 2020-02, Vol.81 (4), p.801-812 |
| issn | 0273-1223 1996-9732 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2407584745 |
| source | MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Acids Adsorbents Adsorption Aqueous solutions Cadmium Carbon Charcoal Chemicals Copper Economic feasibility Efficiency Electric contacts Electrical resistivity Electrodes Electrostatic charge Electrostatic properties Experiments Feasibility studies Heavy metals Ions Lead Metals Metals, Heavy Methods Nickel Polarity Removal |
| title | Electro-assisted adsorption of heavy metals from aqueous solutions by biochar |
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