In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process
Regeneration is required to restore the adsorption performance of activated carbon used as an adsorbent in water purification. Conventional thermal and electrochemical regenerations have high energy consumption and poor mineralization of pollutants, respectively. In this study, phenol-saturated acti...
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| Veröffentlicht in: | Environmental science & technology 2020-09, Vol.54 (17), p.10944-10953 |
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| creator | Ding, Haojie Zhu, Ying Wu, Yulun Zhang, Jian Deng, Huiping Zheng, Huaili Liu, Zhen Zhao, Chun |
| description | Regeneration is required to restore the adsorption performance of activated carbon used as an adsorbent in water purification. Conventional thermal and electrochemical regenerations have high energy consumption and poor mineralization of pollutants, respectively. In this study, phenol-saturated activated carbon fiber was regenerated in situ using an electro-peroxymonosulfate (E-PMS) process, which mineralized the desorbed contaminants with relatively low energy consumption. The initial adsorbed phenol (81.90%) was mineralized, and only 4.07% of the initial concentration remained in the solution after 6 h of E-PMS regeneration. The phenol degradation was dominated by hydroxyl radical oxidation. Adding the PMS in three doses at 2 h intervals improves the regeneration performance from 75% to more than 82%. Regeneration retained 60% of its initial effectiveness even in the 10th cycle with 4.40% of the initial concentration of phenol remaining in the solution. These results confirm the E-PMS regeneration process as effective, sustainable, and environmentally friendly for regenerating activated carbon. |
| doi_str_mv | 10.1021/acs.est.0c03766 |
| format | Article |
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Conventional thermal and electrochemical regenerations have high energy consumption and poor mineralization of pollutants, respectively. In this study, phenol-saturated activated carbon fiber was regenerated in situ using an electro-peroxymonosulfate (E-PMS) process, which mineralized the desorbed contaminants with relatively low energy consumption. The initial adsorbed phenol (81.90%) was mineralized, and only 4.07% of the initial concentration remained in the solution after 6 h of E-PMS regeneration. The phenol degradation was dominated by hydroxyl radical oxidation. Adding the PMS in three doses at 2 h intervals improves the regeneration performance from 75% to more than 82%. Regeneration retained 60% of its initial effectiveness even in the 10th cycle with 4.40% of the initial concentration of phenol remaining in the solution. These results confirm the E-PMS regeneration process as effective, sustainable, and environmentally friendly for regenerating activated carbon.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/acs.est.0c03766</identifier><identifier>PMID: 32786586</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Activated carbon ; Carbon ; Carbon Fiber ; Carbon fiber reinforced plastics ; Carbon fibers ; Charcoal ; Contaminants ; Electrochemistry ; Energy consumption ; Hydroxyl radicals ; Mineralization ; Oxidation ; Oxidation-Reduction ; Peroxides ; Phenol ; Phenols ; Pollutants ; Regeneration ; Treatment and Resource Recovery ; Water Pollutants, Chemical - analysis ; Water purification ; Water treatment</subject><ispartof>Environmental science & technology, 2020-09, Vol.54 (17), p.10944-10953</ispartof><rights>Copyright American Chemical Society Sep 1, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a361t-2bdc1821da0dc45e6abb8a0f709ea9af97d78f96eba85a6ef9c637d7bdfd6c893</citedby><cites>FETCH-LOGICAL-a361t-2bdc1821da0dc45e6abb8a0f709ea9af97d78f96eba85a6ef9c637d7bdfd6c893</cites><orcidid>0000-0003-0803-5294 ; 0000-0001-8544-6033 ; 0000-0002-9027-6857 ; 0000-0003-0824-4424 ; 0000-0003-4085-3684 ; 0000-0002-9118-9990 ; 0000-0003-2848-3991</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.est.0c03766$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.est.0c03766$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32786586$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ding, Haojie</creatorcontrib><creatorcontrib>Zhu, Ying</creatorcontrib><creatorcontrib>Wu, Yulun</creatorcontrib><creatorcontrib>Zhang, Jian</creatorcontrib><creatorcontrib>Deng, Huiping</creatorcontrib><creatorcontrib>Zheng, Huaili</creatorcontrib><creatorcontrib>Liu, Zhen</creatorcontrib><creatorcontrib>Zhao, Chun</creatorcontrib><title>In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>Regeneration is required to restore the adsorption performance of activated carbon used as an adsorbent in water purification. Conventional thermal and electrochemical regenerations have high energy consumption and poor mineralization of pollutants, respectively. In this study, phenol-saturated activated carbon fiber was regenerated in situ using an electro-peroxymonosulfate (E-PMS) process, which mineralized the desorbed contaminants with relatively low energy consumption. The initial adsorbed phenol (81.90%) was mineralized, and only 4.07% of the initial concentration remained in the solution after 6 h of E-PMS regeneration. The phenol degradation was dominated by hydroxyl radical oxidation. Adding the PMS in three doses at 2 h intervals improves the regeneration performance from 75% to more than 82%. Regeneration retained 60% of its initial effectiveness even in the 10th cycle with 4.40% of the initial concentration of phenol remaining in the solution. 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Zhu, Ying ; Wu, Yulun ; Zhang, Jian ; Deng, Huiping ; Zheng, Huaili ; Liu, Zhen ; Zhao, Chun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a361t-2bdc1821da0dc45e6abb8a0f709ea9af97d78f96eba85a6ef9c637d7bdfd6c893</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activated carbon</topic><topic>Carbon</topic><topic>Carbon Fiber</topic><topic>Carbon fiber reinforced plastics</topic><topic>Carbon fibers</topic><topic>Charcoal</topic><topic>Contaminants</topic><topic>Electrochemistry</topic><topic>Energy consumption</topic><topic>Hydroxyl radicals</topic><topic>Mineralization</topic><topic>Oxidation</topic><topic>Oxidation-Reduction</topic><topic>Peroxides</topic><topic>Phenol</topic><topic>Phenols</topic><topic>Pollutants</topic><topic>Regeneration</topic><topic>Treatment and Resource Recovery</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water purification</topic><topic>Water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ding, Haojie</creatorcontrib><creatorcontrib>Zhu, Ying</creatorcontrib><creatorcontrib>Wu, Yulun</creatorcontrib><creatorcontrib>Zhang, Jian</creatorcontrib><creatorcontrib>Deng, Huiping</creatorcontrib><creatorcontrib>Zheng, Huaili</creatorcontrib><creatorcontrib>Liu, Zhen</creatorcontrib><creatorcontrib>Zhao, Chun</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Environmental science & technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ding, Haojie</au><au>Zhu, Ying</au><au>Wu, Yulun</au><au>Zhang, Jian</au><au>Deng, Huiping</au><au>Zheng, Huaili</au><au>Liu, Zhen</au><au>Zhao, Chun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process</atitle><jtitle>Environmental science & technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2020-09-01</date><risdate>2020</risdate><volume>54</volume><issue>17</issue><spage>10944</spage><epage>10953</epage><pages>10944-10953</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><abstract>Regeneration is required to restore the adsorption performance of activated carbon used as an adsorbent in water purification. Conventional thermal and electrochemical regenerations have high energy consumption and poor mineralization of pollutants, respectively. In this study, phenol-saturated activated carbon fiber was regenerated in situ using an electro-peroxymonosulfate (E-PMS) process, which mineralized the desorbed contaminants with relatively low energy consumption. The initial adsorbed phenol (81.90%) was mineralized, and only 4.07% of the initial concentration remained in the solution after 6 h of E-PMS regeneration. The phenol degradation was dominated by hydroxyl radical oxidation. Adding the PMS in three doses at 2 h intervals improves the regeneration performance from 75% to more than 82%. Regeneration retained 60% of its initial effectiveness even in the 10th cycle with 4.40% of the initial concentration of phenol remaining in the solution. These results confirm the E-PMS regeneration process as effective, sustainable, and environmentally friendly for regenerating activated carbon.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>32786586</pmid><doi>10.1021/acs.est.0c03766</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-0803-5294</orcidid><orcidid>https://orcid.org/0000-0001-8544-6033</orcidid><orcidid>https://orcid.org/0000-0002-9027-6857</orcidid><orcidid>https://orcid.org/0000-0003-0824-4424</orcidid><orcidid>https://orcid.org/0000-0003-4085-3684</orcidid><orcidid>https://orcid.org/0000-0002-9118-9990</orcidid><orcidid>https://orcid.org/0000-0003-2848-3991</orcidid></addata></record> |
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| subjects | Activated carbon Carbon Carbon Fiber Carbon fiber reinforced plastics Carbon fibers Charcoal Contaminants Electrochemistry Energy consumption Hydroxyl radicals Mineralization Oxidation Oxidation-Reduction Peroxides Phenol Phenols Pollutants Regeneration Treatment and Resource Recovery Water Pollutants, Chemical - analysis Water purification Water treatment |
| title | In Situ Regeneration of Phenol-Saturated Activated Carbon Fiber by an Electro-peroxymonosulfate Process |
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