Characterization and reutilization potential of lipids in sludges from wastewater treatment processes
Lipids in sewage sludge are considered to be high-class raw materials for biodiesel or other valuable products. We profiled the characteristics and assessed the reutilization potential of lipids from different sludge sources, including sludge from the primary sedimentation tank (PST sludge) and slud...
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| Veröffentlicht in: | Scientific reports 2020-08, Vol.10 (1), p.12997-12997, Article 12997 |
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| creator | Liu, Shuai Luo, Tao Liu, Guo-hua Xu, Xianglong Shao, Yuting Qi, Lu Wang, Hongchen |
| description | Lipids in sewage sludge are considered to be high-class raw materials for biodiesel or other valuable products. We profiled the characteristics and assessed the reutilization potential of lipids from different sludge sources, including sludge from the primary sedimentation tank (PST sludge) and sludge from the secondary sedimentation tank in a conventional activated sludge system (CAS sludge), as well as sludge from ultrashort-sludge retention time (SRT) activated sludge systems with different SRTs (USAS sludge, with SRTs of 0.5, 1.0, 2.0, 3.0 and 4.0 d). The results showed that the lipids in the sludges were mainly composed of cellular lipids, free fatty acids (FFAs), wax and gum. The highest lipid content was found in the PST sludge (156.8 ± 11.9 mg/g, dry basis), followed by the USAS sludges (67.9 ± 11.0–132.2 ± 11.8 mg/g) and the CAS sludge (46.0 ± 16.5 mg/g). Lipid species such as Cer, So, PE, PC, and TG were abundant, comprising over 80% of the cellular lipids in the sludges. With higher lipid contents, the PST sludge and USAS sludge (0.5 d SRT) were suggested to have a higher reutilization potential for use in producing biodiesel. In addition, the CAS sludge was promising for resource reutilization and energy recovery due to the large amount of excess sludge. |
| doi_str_mv | 10.1038/s41598-020-69855-6 |
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We profiled the characteristics and assessed the reutilization potential of lipids from different sludge sources, including sludge from the primary sedimentation tank (PST sludge) and sludge from the secondary sedimentation tank in a conventional activated sludge system (CAS sludge), as well as sludge from ultrashort-sludge retention time (SRT) activated sludge systems with different SRTs (USAS sludge, with SRTs of 0.5, 1.0, 2.0, 3.0 and 4.0 d). The results showed that the lipids in the sludges were mainly composed of cellular lipids, free fatty acids (FFAs), wax and gum. The highest lipid content was found in the PST sludge (156.8 ± 11.9 mg/g, dry basis), followed by the USAS sludges (67.9 ± 11.0–132.2 ± 11.8 mg/g) and the CAS sludge (46.0 ± 16.5 mg/g). Lipid species such as Cer, So, PE, PC, and TG were abundant, comprising over 80% of the cellular lipids in the sludges. With higher lipid contents, the PST sludge and USAS sludge (0.5 d SRT) were suggested to have a higher reutilization potential for use in producing biodiesel. In addition, the CAS sludge was promising for resource reutilization and energy recovery due to the large amount of excess sludge.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-020-69855-6</identifier><identifier>PMID: 32747656</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>704/172 ; 704/172/169 ; Activated sludge ; Biodiesel fuels ; Biofuels ; Diesel ; Energy recovery ; Fatty acids ; Humanities and Social Sciences ; Lipids ; multidisciplinary ; Raw materials ; Retention time ; Science ; Science (multidisciplinary) ; Sedimentation ; Sedimentation & deposition ; Sewage sludge ; Sludge ; Wastewater treatment</subject><ispartof>Scientific reports, 2020-08, Vol.10 (1), p.12997-12997, Article 12997</ispartof><rights>The Author(s) 2020</rights><rights>The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c488t-7ca0b7e306bb0e62e6814ca55a7e0e507ffb51e2e3ae29fd1d7aa4a8c2bdda823</citedby><cites>FETCH-LOGICAL-c488t-7ca0b7e306bb0e62e6814ca55a7e0e507ffb51e2e3ae29fd1d7aa4a8c2bdda823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7400647/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7400647/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,41096,42165,51551,53766,53768</link.rule.ids></links><search><creatorcontrib>Liu, Shuai</creatorcontrib><creatorcontrib>Luo, Tao</creatorcontrib><creatorcontrib>Liu, Guo-hua</creatorcontrib><creatorcontrib>Xu, Xianglong</creatorcontrib><creatorcontrib>Shao, Yuting</creatorcontrib><creatorcontrib>Qi, Lu</creatorcontrib><creatorcontrib>Wang, Hongchen</creatorcontrib><title>Characterization and reutilization potential of lipids in sludges from wastewater treatment processes</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><description>Lipids in sewage sludge are considered to be high-class raw materials for biodiesel or other valuable products. We profiled the characteristics and assessed the reutilization potential of lipids from different sludge sources, including sludge from the primary sedimentation tank (PST sludge) and sludge from the secondary sedimentation tank in a conventional activated sludge system (CAS sludge), as well as sludge from ultrashort-sludge retention time (SRT) activated sludge systems with different SRTs (USAS sludge, with SRTs of 0.5, 1.0, 2.0, 3.0 and 4.0 d). The results showed that the lipids in the sludges were mainly composed of cellular lipids, free fatty acids (FFAs), wax and gum. The highest lipid content was found in the PST sludge (156.8 ± 11.9 mg/g, dry basis), followed by the USAS sludges (67.9 ± 11.0–132.2 ± 11.8 mg/g) and the CAS sludge (46.0 ± 16.5 mg/g). Lipid species such as Cer, So, PE, PC, and TG were abundant, comprising over 80% of the cellular lipids in the sludges. With higher lipid contents, the PST sludge and USAS sludge (0.5 d SRT) were suggested to have a higher reutilization potential for use in producing biodiesel. In addition, the CAS sludge was promising for resource reutilization and energy recovery due to the large amount of excess sludge.</description><subject>704/172</subject><subject>704/172/169</subject><subject>Activated sludge</subject><subject>Biodiesel fuels</subject><subject>Biofuels</subject><subject>Diesel</subject><subject>Energy recovery</subject><subject>Fatty acids</subject><subject>Humanities and Social Sciences</subject><subject>Lipids</subject><subject>multidisciplinary</subject><subject>Raw materials</subject><subject>Retention time</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Sedimentation</subject><subject>Sedimentation & deposition</subject><subject>Sewage sludge</subject><subject>Sludge</subject><subject>Wastewater treatment</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kUuL1jAUhoMozjDOH3AVcOOmmnvSjSAf3mDAja7DaXr6TYa2qUnqoL_e6DdeF2aTkDzvwwkvIY85e8aZdM-L4rp3HROsM73TujP3yLlgSndCCnH_j_MZuSzlhrWlRa94_5CcSWGVNdqcEzxcQ4ZQMcevUGNaKawjzbjXOP-82VLFtUaYaZroHLc4FhpXWuZ9PGKhU04LvYVS8Raah9aMUJeWoFtOAUvB8og8mGAueHm3X5CPr199OLztrt6_eXd4edUF5VztbAA2WJTMDANDI9A4rgJoDRYZamanadAcBUpA0U8jHy2AAhfEMI7ghLwgL07ebR8WHEMbIsPstxwXyF98guj_flnjtT-mz94qxoyyTfD0TpDTpx1L9UssAecZVkx78UJJJo3rjW7ok3_Qm7TntX2vUaLvBe81b5Q4USGnUjJOv4bhzH8v0p-K9K1I_6NIb1pInkKlwesR82_1f1LfADCeoy0</recordid><startdate>20200803</startdate><enddate>20200803</enddate><creator>Liu, Shuai</creator><creator>Luo, Tao</creator><creator>Liu, Guo-hua</creator><creator>Xu, Xianglong</creator><creator>Shao, Yuting</creator><creator>Qi, Lu</creator><creator>Wang, Hongchen</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20200803</creationdate><title>Characterization and reutilization potential of lipids in sludges from wastewater treatment processes</title><author>Liu, Shuai ; 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We profiled the characteristics and assessed the reutilization potential of lipids from different sludge sources, including sludge from the primary sedimentation tank (PST sludge) and sludge from the secondary sedimentation tank in a conventional activated sludge system (CAS sludge), as well as sludge from ultrashort-sludge retention time (SRT) activated sludge systems with different SRTs (USAS sludge, with SRTs of 0.5, 1.0, 2.0, 3.0 and 4.0 d). The results showed that the lipids in the sludges were mainly composed of cellular lipids, free fatty acids (FFAs), wax and gum. The highest lipid content was found in the PST sludge (156.8 ± 11.9 mg/g, dry basis), followed by the USAS sludges (67.9 ± 11.0–132.2 ± 11.8 mg/g) and the CAS sludge (46.0 ± 16.5 mg/g). Lipid species such as Cer, So, PE, PC, and TG were abundant, comprising over 80% of the cellular lipids in the sludges. With higher lipid contents, the PST sludge and USAS sludge (0.5 d SRT) were suggested to have a higher reutilization potential for use in producing biodiesel. In addition, the CAS sludge was promising for resource reutilization and energy recovery due to the large amount of excess sludge.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>32747656</pmid><doi>10.1038/s41598-020-69855-6</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 704/172 704/172/169 Activated sludge Biodiesel fuels Biofuels Diesel Energy recovery Fatty acids Humanities and Social Sciences Lipids multidisciplinary Raw materials Retention time Science Science (multidisciplinary) Sedimentation Sedimentation & deposition Sewage sludge Sludge Wastewater treatment |
| title | Characterization and reutilization potential of lipids in sludges from wastewater treatment processes |
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