Porous polymers embedded with iron carbon enhanced densified activated sludge formation and wastewater treatment
[Display omitted] •The filler of iron carbon inserted porous polymers was innovatively constructed.•Combining mesh granulation and iron carbon expedited the formation of DAS.•The DAS with small particle size and good sedimentation was cultivated.•Nitrogen and phosphorus removal were significantly en...
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| Veröffentlicht in: | Bioresource technology 2024-12, Vol.418, p.131924, Article 131924 |
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| creator | Feng, Hongbo Jin, Linyi Yao, Yunbo Yu, Xiaobing Li, Lincong Rousseau, Diederik P.L. Li, Jun |
| description | [Display omitted]
•The filler of iron carbon inserted porous polymers was innovatively constructed.•Combining mesh granulation and iron carbon expedited the formation of DAS.•The DAS with small particle size and good sedimentation was cultivated.•Nitrogen and phosphorus removal were significantly enhanced.
Municipal wastewater treatment plants in China face significant challenges in effectively removing pollutants from low-strength wastewater with a low carbon-to-nitrogen (COD/N) ratio. This study proposes a novel approach incorporating porous polymers embedded with iron-carbon (PP-IC) into an activated sludge system to enhance treatment. The PP-IC accelerated the formation of densified activated sludge (DAS), characterized by small particle sizes ( |
| doi_str_mv | 10.1016/j.biortech.2024.131924 |
| format | Article |
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•The filler of iron carbon inserted porous polymers was innovatively constructed.•Combining mesh granulation and iron carbon expedited the formation of DAS.•The DAS with small particle size and good sedimentation was cultivated.•Nitrogen and phosphorus removal were significantly enhanced.
Municipal wastewater treatment plants in China face significant challenges in effectively removing pollutants from low-strength wastewater with a low carbon-to-nitrogen (COD/N) ratio. This study proposes a novel approach incorporating porous polymers embedded with iron-carbon (PP-IC) into an activated sludge system to enhance treatment. The PP-IC accelerated the formation of densified activated sludge (DAS), characterized by small particle sizes (<200 μm), excellent settleability (sludge volume index: 61 mL/g), and improved pollutant removal efficiency, with total nitrogen and total phosphorus removal rates increasing by 14.4 % and 57.4 %, respectively. DAS formation was achieved within 7 days and stabilized after 42 days. The enrichment of microorganisms, including unclassified_f_Caldilineaceae, Dechloromonas, and Candidatus Accumulibacter, further enhanced pollutant removal. Additionally, Fe2+, Fe3+ and hydroxyl radical (·OH) produced by iron-carbon micro-electrolysis supported DAS formation. Microbial interactions with the iron shavings sustained the long-term stability of the micro-electrolysis process. This synergistic mechanism significantly improved pollutant removal in wastewater treatment.</description><identifier>ISSN: 0960-8524</identifier><identifier>ISSN: 1873-2976</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2024.131924</identifier><identifier>PMID: 39626807</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Densified activated sludge ; Iron carbon ; Micro-electrolysis ; Nitrogen removal ; Phosphorus removal</subject><ispartof>Bioresource technology, 2024-12, Vol.418, p.131924, Article 131924</ispartof><rights>2024</rights><rights>Copyright © 2024. Published by Elsevier Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-9492-3601</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.biortech.2024.131924$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39626807$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Feng, Hongbo</creatorcontrib><creatorcontrib>Jin, Linyi</creatorcontrib><creatorcontrib>Yao, Yunbo</creatorcontrib><creatorcontrib>Yu, Xiaobing</creatorcontrib><creatorcontrib>Li, Lincong</creatorcontrib><creatorcontrib>Rousseau, Diederik P.L.</creatorcontrib><creatorcontrib>Li, Jun</creatorcontrib><title>Porous polymers embedded with iron carbon enhanced densified activated sludge formation and wastewater treatment</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>[Display omitted]
•The filler of iron carbon inserted porous polymers was innovatively constructed.•Combining mesh granulation and iron carbon expedited the formation of DAS.•The DAS with small particle size and good sedimentation was cultivated.•Nitrogen and phosphorus removal were significantly enhanced.
Municipal wastewater treatment plants in China face significant challenges in effectively removing pollutants from low-strength wastewater with a low carbon-to-nitrogen (COD/N) ratio. This study proposes a novel approach incorporating porous polymers embedded with iron-carbon (PP-IC) into an activated sludge system to enhance treatment. The PP-IC accelerated the formation of densified activated sludge (DAS), characterized by small particle sizes (<200 μm), excellent settleability (sludge volume index: 61 mL/g), and improved pollutant removal efficiency, with total nitrogen and total phosphorus removal rates increasing by 14.4 % and 57.4 %, respectively. DAS formation was achieved within 7 days and stabilized after 42 days. The enrichment of microorganisms, including unclassified_f_Caldilineaceae, Dechloromonas, and Candidatus Accumulibacter, further enhanced pollutant removal. Additionally, Fe2+, Fe3+ and hydroxyl radical (·OH) produced by iron-carbon micro-electrolysis supported DAS formation. Microbial interactions with the iron shavings sustained the long-term stability of the micro-electrolysis process. This synergistic mechanism significantly improved pollutant removal in wastewater treatment.</description><subject>Densified activated sludge</subject><subject>Iron carbon</subject><subject>Micro-electrolysis</subject><subject>Nitrogen removal</subject><subject>Phosphorus removal</subject><issn>0960-8524</issn><issn>1873-2976</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNo1kUlPwzAQhS0EoqXwF6ocuaR4i5PcQBWbVAkOcLa8TKirLMV2ivrvcdX2NE-aT08z7yE0J3hBMBEPm4V2g49g1guKKV8QRmrKL9CUVCXLaV2KSzTFtcB5VVA-QTchbDDGjJT0Gk1YLaiocDlF28_BD2PItkO778CHDDoN1oLN_lxcZ84PfWaU12lAv1a9SRsLfXCNS0qZ6HYqJhXa0f5A1gy-U9ElWvXJQoUIf2nvs-hBxQ76eIuuGtUGuDvNGfp-ef5avuWrj9f35dMqB0JYmRPKGyyELkTRiEprwkRTcAbMpNO1qGxhdK25MNYqTJRlRcmUqq2uieKFIGyG7o--Wz_8jhCi7Fww0Laqh_SwZITjmpZciITOT-ioO7By612n_F6eU0rA4xGAdPDOgZfBODhk4TyYKO3gJMHyUIzcyHMx8lCMPBbD_gGLMIRb</recordid><startdate>20241201</startdate><enddate>20241201</enddate><creator>Feng, Hongbo</creator><creator>Jin, Linyi</creator><creator>Yao, Yunbo</creator><creator>Yu, Xiaobing</creator><creator>Li, Lincong</creator><creator>Rousseau, Diederik P.L.</creator><creator>Li, Jun</creator><general>Elsevier Ltd</general><scope>NPM</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-9492-3601</orcidid></search><sort><creationdate>20241201</creationdate><title>Porous polymers embedded with iron carbon enhanced densified activated sludge formation and wastewater treatment</title><author>Feng, Hongbo ; Jin, Linyi ; Yao, Yunbo ; Yu, Xiaobing ; Li, Lincong ; Rousseau, Diederik P.L. ; Li, Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e1137-124f066b565f68bb136f543e3c962b68d5cb9b46cdda01ad3573aa9db91a45613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Densified activated sludge</topic><topic>Iron carbon</topic><topic>Micro-electrolysis</topic><topic>Nitrogen removal</topic><topic>Phosphorus removal</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Feng, Hongbo</creatorcontrib><creatorcontrib>Jin, Linyi</creatorcontrib><creatorcontrib>Yao, Yunbo</creatorcontrib><creatorcontrib>Yu, Xiaobing</creatorcontrib><creatorcontrib>Li, Lincong</creatorcontrib><creatorcontrib>Rousseau, Diederik P.L.</creatorcontrib><creatorcontrib>Li, Jun</creatorcontrib><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Feng, Hongbo</au><au>Jin, Linyi</au><au>Yao, Yunbo</au><au>Yu, Xiaobing</au><au>Li, Lincong</au><au>Rousseau, Diederik P.L.</au><au>Li, Jun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Porous polymers embedded with iron carbon enhanced densified activated sludge formation and wastewater treatment</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2024-12-01</date><risdate>2024</risdate><volume>418</volume><spage>131924</spage><pages>131924-</pages><artnum>131924</artnum><issn>0960-8524</issn><issn>1873-2976</issn><eissn>1873-2976</eissn><abstract>[Display omitted]
•The filler of iron carbon inserted porous polymers was innovatively constructed.•Combining mesh granulation and iron carbon expedited the formation of DAS.•The DAS with small particle size and good sedimentation was cultivated.•Nitrogen and phosphorus removal were significantly enhanced.
Municipal wastewater treatment plants in China face significant challenges in effectively removing pollutants from low-strength wastewater with a low carbon-to-nitrogen (COD/N) ratio. This study proposes a novel approach incorporating porous polymers embedded with iron-carbon (PP-IC) into an activated sludge system to enhance treatment. The PP-IC accelerated the formation of densified activated sludge (DAS), characterized by small particle sizes (<200 μm), excellent settleability (sludge volume index: 61 mL/g), and improved pollutant removal efficiency, with total nitrogen and total phosphorus removal rates increasing by 14.4 % and 57.4 %, respectively. DAS formation was achieved within 7 days and stabilized after 42 days. The enrichment of microorganisms, including unclassified_f_Caldilineaceae, Dechloromonas, and Candidatus Accumulibacter, further enhanced pollutant removal. Additionally, Fe2+, Fe3+ and hydroxyl radical (·OH) produced by iron-carbon micro-electrolysis supported DAS formation. Microbial interactions with the iron shavings sustained the long-term stability of the micro-electrolysis process. This synergistic mechanism significantly improved pollutant removal in wastewater treatment.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>39626807</pmid><doi>10.1016/j.biortech.2024.131924</doi><orcidid>https://orcid.org/0000-0002-9492-3601</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Densified activated sludge Iron carbon Micro-electrolysis Nitrogen removal Phosphorus removal |
| title | Porous polymers embedded with iron carbon enhanced densified activated sludge formation and wastewater treatment |
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