Sulfate removal from acid mine drainage using polypyrrole-grafted granular activated carbon
A novel method of removing sulfate from acid mine drainage (AMD) water was developed by depositing polypyrrole into the pores of wood-based activated carbon (RGC) using in situ chemical oxidative polarization. This polypyrrole-tailored activated carbon hosted positively charged polypyrrole functiona...
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| Veröffentlicht in: | Carbon (New York) 2014-07, Vol.73, p.51-60 |
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| creator | Hong, Siqi Cannon, Fred S. Hou, Pin Byrne, Timothy Nieto-Delgado, Cesar |
| description | A novel method of removing sulfate from acid mine drainage (AMD) water was developed by depositing polypyrrole into the pores of wood-based activated carbon (RGC) using in situ chemical oxidative polarization. This polypyrrole-tailored activated carbon hosted positively charged polypyrrole functionality that offered sorption capacity for sulfate. Specifically, in batch tests, the polypyrrole-grafted RGC achieved a sulfate loading of 48mg/g, this being 8 times higher than for pristine RGC. Rapid Small Scale Column Tests appraised the polypyrrole-tailored RGC for removing 773mg/L sulfate from AMD water. The more favorably tailored carbon removed sulfate to half-breakthrough at 24bedvolumes (BV). This compared to 1.5BV for pristine activated carbon. Per mass and charge balance, 9% of the nitrogen in the polypyrrole functionality was active for capturing sulfate. On this tailored carbon, the nitrogen content was 12.9%, as characterized by X-ray photoelectron spectroscopy. With this polypyrrole tailoring, the carbon’s pore volume distributions diminished to one-third, as characterized by argon adsorption. |
| doi_str_mv | 10.1016/j.carbon.2014.02.036 |
| format | Article |
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This polypyrrole-tailored activated carbon hosted positively charged polypyrrole functionality that offered sorption capacity for sulfate. Specifically, in batch tests, the polypyrrole-grafted RGC achieved a sulfate loading of 48mg/g, this being 8 times higher than for pristine RGC. Rapid Small Scale Column Tests appraised the polypyrrole-tailored RGC for removing 773mg/L sulfate from AMD water. The more favorably tailored carbon removed sulfate to half-breakthrough at 24bedvolumes (BV). This compared to 1.5BV for pristine activated carbon. Per mass and charge balance, 9% of the nitrogen in the polypyrrole functionality was active for capturing sulfate. On this tailored carbon, the nitrogen content was 12.9%, as characterized by X-ray photoelectron spectroscopy. 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This polypyrrole-tailored activated carbon hosted positively charged polypyrrole functionality that offered sorption capacity for sulfate. Specifically, in batch tests, the polypyrrole-grafted RGC achieved a sulfate loading of 48mg/g, this being 8 times higher than for pristine RGC. Rapid Small Scale Column Tests appraised the polypyrrole-tailored RGC for removing 773mg/L sulfate from AMD water. The more favorably tailored carbon removed sulfate to half-breakthrough at 24bedvolumes (BV). This compared to 1.5BV for pristine activated carbon. Per mass and charge balance, 9% of the nitrogen in the polypyrrole functionality was active for capturing sulfate. On this tailored carbon, the nitrogen content was 12.9%, as characterized by X-ray photoelectron spectroscopy. With this polypyrrole tailoring, the carbon’s pore volume distributions diminished to one-third, as characterized by argon adsorption.</description><subject>Acid mine drainage</subject><subject>Activated carbon</subject><subject>Adsorbents</subject><subject>Carbon</subject><subject>Chemistry</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Deposition</subject><subject>Exact sciences and technology</subject><subject>Fullerenes and related materials; diamonds, graphite</subject><subject>General and physical chemistry</subject><subject>Materials science</subject><subject>Physics</subject><subject>Polypyrroles</subject><subject>Porosity</subject><subject>Small scale</subject><subject>Specific materials</subject><subject>Sulfates</subject><subject>Surface physical chemistry</subject><issn>0008-6223</issn><issn>1873-3891</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kE9r3DAQxUVpods036AHXwq92BnJWlm-FErIn0IghySnHMRYHi9aZGsr2Qv77aPFIceehhl-b-bNY-wHh4oDV1f7ymLswlQJ4LICUUGtPrEN101d1rrln9kGAHSphKi_sm8p7XMrNZcb9vq0-AFnKiKN4Yi-GGIYC7SuL0Y3UdFHdBPuqFiSm3bFIfjT4RRj8FTuIg4z9UWu0-IxZtXsjngerXa-sy8D-kSX7_WCvdzePF_flw-Pd3-v_zyUVoKay2Hb1CC3ve6IK4WgkXin-7bZbgWolmTbdqhRWgUN15Y66mohMm2V7geN9QX7te49xPBvoTSb0SVL3uNEYUmGq4YrAaCajMoVtTGkFGkwh-hGjCfDwZyzNHuzmjfnLA0Ik7PMsp_vFzBZ9EP-2Lr0oRW6bpRoZeZ-rxzld4-OoknW0WSpd5HsbPrg_n_oDdAWjUo</recordid><startdate>20140701</startdate><enddate>20140701</enddate><creator>Hong, Siqi</creator><creator>Cannon, Fred S.</creator><creator>Hou, Pin</creator><creator>Byrne, Timothy</creator><creator>Nieto-Delgado, Cesar</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-5165-6996</orcidid></search><sort><creationdate>20140701</creationdate><title>Sulfate removal from acid mine drainage using polypyrrole-grafted granular activated carbon</title><author>Hong, Siqi ; Cannon, Fred S. ; Hou, Pin ; Byrne, Timothy ; Nieto-Delgado, Cesar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c406t-f573045d8be166a08ae1b8d97552069e499ba8a4c60718cebeb3228bec68df8a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Acid mine drainage</topic><topic>Activated carbon</topic><topic>Adsorbents</topic><topic>Carbon</topic><topic>Chemistry</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Deposition</topic><topic>Exact sciences and technology</topic><topic>Fullerenes and related materials; diamonds, graphite</topic><topic>General and physical chemistry</topic><topic>Materials science</topic><topic>Physics</topic><topic>Polypyrroles</topic><topic>Porosity</topic><topic>Small scale</topic><topic>Specific materials</topic><topic>Sulfates</topic><topic>Surface physical chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hong, Siqi</creatorcontrib><creatorcontrib>Cannon, Fred S.</creatorcontrib><creatorcontrib>Hou, Pin</creatorcontrib><creatorcontrib>Byrne, Timothy</creatorcontrib><creatorcontrib>Nieto-Delgado, Cesar</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Carbon (New York)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hong, Siqi</au><au>Cannon, Fred S.</au><au>Hou, Pin</au><au>Byrne, Timothy</au><au>Nieto-Delgado, Cesar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sulfate removal from acid mine drainage using polypyrrole-grafted granular activated carbon</atitle><jtitle>Carbon (New York)</jtitle><date>2014-07-01</date><risdate>2014</risdate><volume>73</volume><spage>51</spage><epage>60</epage><pages>51-60</pages><issn>0008-6223</issn><eissn>1873-3891</eissn><coden>CRBNAH</coden><abstract>A novel method of removing sulfate from acid mine drainage (AMD) water was developed by depositing polypyrrole into the pores of wood-based activated carbon (RGC) using in situ chemical oxidative polarization. This polypyrrole-tailored activated carbon hosted positively charged polypyrrole functionality that offered sorption capacity for sulfate. Specifically, in batch tests, the polypyrrole-grafted RGC achieved a sulfate loading of 48mg/g, this being 8 times higher than for pristine RGC. Rapid Small Scale Column Tests appraised the polypyrrole-tailored RGC for removing 773mg/L sulfate from AMD water. The more favorably tailored carbon removed sulfate to half-breakthrough at 24bedvolumes (BV). This compared to 1.5BV for pristine activated carbon. Per mass and charge balance, 9% of the nitrogen in the polypyrrole functionality was active for capturing sulfate. On this tailored carbon, the nitrogen content was 12.9%, as characterized by X-ray photoelectron spectroscopy. With this polypyrrole tailoring, the carbon’s pore volume distributions diminished to one-third, as characterized by argon adsorption.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.carbon.2014.02.036</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-5165-6996</orcidid></addata></record> |
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| ispartof | Carbon (New York), 2014-07, Vol.73, p.51-60 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Acid mine drainage Activated carbon Adsorbents Carbon Chemistry Cross-disciplinary physics: materials science rheology Deposition Exact sciences and technology Fullerenes and related materials diamonds, graphite General and physical chemistry Materials science Physics Polypyrroles Porosity Small scale Specific materials Sulfates Surface physical chemistry |
| title | Sulfate removal from acid mine drainage using polypyrrole-grafted granular activated carbon |
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