Synthesis, characterization, and secondary sludge dewatering performance of a novel combined silicon–aluminum–iron–starch flocculant
•Silicon, aluminum, and iron were grafted onto starch chains to synthesize CSiAFS.•The sludge dewatering performance of CSiAFS was superior to PAC, PAM, and FeCl3.•CSiAFS exhibited a good dewatering efficiency over a wide range of pH (3.0–11.0).•CSiAFS had a discontinuous surface with channels which...
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| Veröffentlicht in: | Journal of hazardous materials 2015-03, Vol.285, p.199-206 |
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| creator | Lin, Qintie Peng, Huanlong Zhong, Songxiong Xiang, Jiangxin |
| description | •Silicon, aluminum, and iron were grafted onto starch chains to synthesize CSiAFS.•The sludge dewatering performance of CSiAFS was superior to PAC, PAM, and FeCl3.•CSiAFS exhibited a good dewatering efficiency over a wide range of pH (3.0–11.0).•CSiAFS had a discontinuous surface with channels which helped to sludge dewatering.
Flocculation is one of the most widely used cost-effective pretreatment method for sludge dewatering, and a novel environmentally friendly and efficient flocculant is highly desired in the sludge dewatering field. In this study, a novel combined silicon–aluminum–ferric–starch was synthesized by grafting silicon, aluminum, and iron onto a starch backbone. The synthesized starch flocculant was characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy, X-ray powder diffraction, and thermogravimetric analysis. The dewatering performance of secondary sludge was evaluated according to the capillary suction time, settling volume percentage, and specific resistance to filtration. The results indicated that the copolymer exhibited: (1) a good dewatering efficiency over a wide pH range of 3.0–11.0, (2) superior sludge dewatering performance compared to those of polyaluminum chloride (PACl), polyacrylamide (PAM), ferric chloride, and (3) a discontinuous surface with many channels or voids that helps to mobilize the impermeable thin layer of secondary sludge during filter pressing. Such a novel copolymer is a promising green flocculant for secondary sludge dewatering applications. |
| doi_str_mv | 10.1016/j.jhazmat.2014.12.005 |
| format | Article |
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Flocculation is one of the most widely used cost-effective pretreatment method for sludge dewatering, and a novel environmentally friendly and efficient flocculant is highly desired in the sludge dewatering field. In this study, a novel combined silicon–aluminum–ferric–starch was synthesized by grafting silicon, aluminum, and iron onto a starch backbone. The synthesized starch flocculant was characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy, X-ray powder diffraction, and thermogravimetric analysis. The dewatering performance of secondary sludge was evaluated according to the capillary suction time, settling volume percentage, and specific resistance to filtration. The results indicated that the copolymer exhibited: (1) a good dewatering efficiency over a wide pH range of 3.0–11.0, (2) superior sludge dewatering performance compared to those of polyaluminum chloride (PACl), polyacrylamide (PAM), ferric chloride, and (3) a discontinuous surface with many channels or voids that helps to mobilize the impermeable thin layer of secondary sludge during filter pressing. Such a novel copolymer is a promising green flocculant for secondary sludge dewatering applications.</description><identifier>ISSN: 0304-3894</identifier><identifier>EISSN: 1873-3336</identifier><identifier>DOI: 10.1016/j.jhazmat.2014.12.005</identifier><identifier>PMID: 25497034</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Aluminum ; Aluminum - chemistry ; Backbone ; Channels ; Chlorides ; Copolymers ; Dewatering ; Flocculant ; Flocculation ; Grafting synthesis ; Hydrogen-Ion Concentration ; Infrared spectroscopy ; Iron - chemistry ; Microscopy, Electron, Scanning ; Powder Diffraction ; Sewage - chemistry ; Silicon - chemistry ; Sludge ; Sludge dewatering ; Spectroscopy, Fourier Transform Infrared ; Starch ; Starch - chemistry ; Starches ; Thermogravimetry ; Waste Disposal, Fluid - methods ; Water - chemistry ; X-Ray Diffraction</subject><ispartof>Journal of hazardous materials, 2015-03, Vol.285, p.199-206</ispartof><rights>2014 Elsevier B.V.</rights><rights>Copyright © 2014 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c534t-50f554255a2cbb48d290820d375525ae79f1bea99e75dd86e88f4adbb729d9433</citedby><cites>FETCH-LOGICAL-c534t-50f554255a2cbb48d290820d375525ae79f1bea99e75dd86e88f4adbb729d9433</cites><orcidid>0000-0002-7058-4692</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S030438941400987X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25497034$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lin, Qintie</creatorcontrib><creatorcontrib>Peng, Huanlong</creatorcontrib><creatorcontrib>Zhong, Songxiong</creatorcontrib><creatorcontrib>Xiang, Jiangxin</creatorcontrib><title>Synthesis, characterization, and secondary sludge dewatering performance of a novel combined silicon–aluminum–iron–starch flocculant</title><title>Journal of hazardous materials</title><addtitle>J Hazard Mater</addtitle><description>•Silicon, aluminum, and iron were grafted onto starch chains to synthesize CSiAFS.•The sludge dewatering performance of CSiAFS was superior to PAC, PAM, and FeCl3.•CSiAFS exhibited a good dewatering efficiency over a wide range of pH (3.0–11.0).•CSiAFS had a discontinuous surface with channels which helped to sludge dewatering.
Flocculation is one of the most widely used cost-effective pretreatment method for sludge dewatering, and a novel environmentally friendly and efficient flocculant is highly desired in the sludge dewatering field. In this study, a novel combined silicon–aluminum–ferric–starch was synthesized by grafting silicon, aluminum, and iron onto a starch backbone. The synthesized starch flocculant was characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy, X-ray powder diffraction, and thermogravimetric analysis. The dewatering performance of secondary sludge was evaluated according to the capillary suction time, settling volume percentage, and specific resistance to filtration. The results indicated that the copolymer exhibited: (1) a good dewatering efficiency over a wide pH range of 3.0–11.0, (2) superior sludge dewatering performance compared to those of polyaluminum chloride (PACl), polyacrylamide (PAM), ferric chloride, and (3) a discontinuous surface with many channels or voids that helps to mobilize the impermeable thin layer of secondary sludge during filter pressing. Such a novel copolymer is a promising green flocculant for secondary sludge dewatering applications.</description><subject>Aluminum</subject><subject>Aluminum - chemistry</subject><subject>Backbone</subject><subject>Channels</subject><subject>Chlorides</subject><subject>Copolymers</subject><subject>Dewatering</subject><subject>Flocculant</subject><subject>Flocculation</subject><subject>Grafting synthesis</subject><subject>Hydrogen-Ion Concentration</subject><subject>Infrared spectroscopy</subject><subject>Iron - chemistry</subject><subject>Microscopy, Electron, Scanning</subject><subject>Powder Diffraction</subject><subject>Sewage - chemistry</subject><subject>Silicon - chemistry</subject><subject>Sludge</subject><subject>Sludge dewatering</subject><subject>Spectroscopy, Fourier Transform Infrared</subject><subject>Starch</subject><subject>Starch - chemistry</subject><subject>Starches</subject><subject>Thermogravimetry</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Water - chemistry</subject><subject>X-Ray Diffraction</subject><issn>0304-3894</issn><issn>1873-3336</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkbtuFDEUhi0EIkvgEUAuKTKDr-txhVAULlIkCqC2PPaZrFcz9mLPJEqq1LS8IU-Cl11oSWXL-n6fo_9D6CUlLSV0_Wbbbjf2brJzywgVLWUtIfIRWtFO8YZzvn6MVoQT0fBOixP0rJQtIYQqKZ6iEyaFVoSLFfrx5TbOGyihnGG3sdm6GXK4s3NI8Qzb6HEBl6K3-RaXcfFXgD3c2D0Ur_AO8pDyZKMDnAZscUzXMGKXpj5EqNkwhpr-df_TjssU4jLVa8h_Xspss9vgYUzOLaON83P0ZLBjgRfH8xR9e3_x9fxjc_n5w6fzd5eNk1zMjSSDlIJJaZnre9F5pknHiOdKSiYtKD3QHqzWoKT33Rq6bhDW971i2mvB-Sl6ffh3l9P3BcpsplAcjHUHSEsxdK2U7mpD9CEo55owJR6ASibqjryrqDygLqdSMgxml8NUGzaUmL1cszVHuWYv11Bmqtyae3UcsfQT-H-pvzYr8PYAQK3vOkA2xQWocnzI4GbjU_jPiN-2AL3u</recordid><startdate>20150301</startdate><enddate>20150301</enddate><creator>Lin, Qintie</creator><creator>Peng, Huanlong</creator><creator>Zhong, Songxiong</creator><creator>Xiang, Jiangxin</creator><general>Elsevier B.V</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>7X8</scope><scope>7QH</scope><scope>7U7</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>7QF</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-7058-4692</orcidid></search><sort><creationdate>20150301</creationdate><title>Synthesis, characterization, and secondary sludge dewatering performance of a novel combined silicon–aluminum–iron–starch flocculant</title><author>Lin, Qintie ; Peng, Huanlong ; Zhong, Songxiong ; Xiang, Jiangxin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c534t-50f554255a2cbb48d290820d375525ae79f1bea99e75dd86e88f4adbb729d9433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Aluminum</topic><topic>Aluminum - chemistry</topic><topic>Backbone</topic><topic>Channels</topic><topic>Chlorides</topic><topic>Copolymers</topic><topic>Dewatering</topic><topic>Flocculant</topic><topic>Flocculation</topic><topic>Grafting synthesis</topic><topic>Hydrogen-Ion Concentration</topic><topic>Infrared spectroscopy</topic><topic>Iron - chemistry</topic><topic>Microscopy, Electron, Scanning</topic><topic>Powder Diffraction</topic><topic>Sewage - chemistry</topic><topic>Silicon - chemistry</topic><topic>Sludge</topic><topic>Sludge dewatering</topic><topic>Spectroscopy, Fourier Transform Infrared</topic><topic>Starch</topic><topic>Starch - chemistry</topic><topic>Starches</topic><topic>Thermogravimetry</topic><topic>Waste Disposal, Fluid - methods</topic><topic>Water - chemistry</topic><topic>X-Ray Diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lin, Qintie</creatorcontrib><creatorcontrib>Peng, Huanlong</creatorcontrib><creatorcontrib>Zhong, Songxiong</creatorcontrib><creatorcontrib>Xiang, Jiangxin</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Aqualine</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lin, Qintie</au><au>Peng, Huanlong</au><au>Zhong, Songxiong</au><au>Xiang, Jiangxin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis, characterization, and secondary sludge dewatering performance of a novel combined silicon–aluminum–iron–starch flocculant</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2015-03-01</date><risdate>2015</risdate><volume>285</volume><spage>199</spage><epage>206</epage><pages>199-206</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><abstract>•Silicon, aluminum, and iron were grafted onto starch chains to synthesize CSiAFS.•The sludge dewatering performance of CSiAFS was superior to PAC, PAM, and FeCl3.•CSiAFS exhibited a good dewatering efficiency over a wide range of pH (3.0–11.0).•CSiAFS had a discontinuous surface with channels which helped to sludge dewatering.
Flocculation is one of the most widely used cost-effective pretreatment method for sludge dewatering, and a novel environmentally friendly and efficient flocculant is highly desired in the sludge dewatering field. In this study, a novel combined silicon–aluminum–ferric–starch was synthesized by grafting silicon, aluminum, and iron onto a starch backbone. The synthesized starch flocculant was characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy, X-ray powder diffraction, and thermogravimetric analysis. The dewatering performance of secondary sludge was evaluated according to the capillary suction time, settling volume percentage, and specific resistance to filtration. The results indicated that the copolymer exhibited: (1) a good dewatering efficiency over a wide pH range of 3.0–11.0, (2) superior sludge dewatering performance compared to those of polyaluminum chloride (PACl), polyacrylamide (PAM), ferric chloride, and (3) a discontinuous surface with many channels or voids that helps to mobilize the impermeable thin layer of secondary sludge during filter pressing. Such a novel copolymer is a promising green flocculant for secondary sludge dewatering applications.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>25497034</pmid><doi>10.1016/j.jhazmat.2014.12.005</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-7058-4692</orcidid></addata></record> |
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| identifier | ISSN: 0304-3894 |
| ispartof | Journal of hazardous materials, 2015-03, Vol.285, p.199-206 |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Aluminum Aluminum - chemistry Backbone Channels Chlorides Copolymers Dewatering Flocculant Flocculation Grafting synthesis Hydrogen-Ion Concentration Infrared spectroscopy Iron - chemistry Microscopy, Electron, Scanning Powder Diffraction Sewage - chemistry Silicon - chemistry Sludge Sludge dewatering Spectroscopy, Fourier Transform Infrared Starch Starch - chemistry Starches Thermogravimetry Waste Disposal, Fluid - methods Water - chemistry X-Ray Diffraction |
| title | Synthesis, characterization, and secondary sludge dewatering performance of a novel combined silicon–aluminum–iron–starch flocculant |
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