DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Minsik | ko |
dc.contributor.author | Kim, Donghyun | ko |
dc.contributor.author | Cho, Jun Muk | ko |
dc.contributor.author | Nam, Kibok | ko |
dc.contributor.author | Lee, Hansol | ko |
dc.contributor.author | Nayak, Manoranjan | ko |
dc.contributor.author | Han, Jong-In | ko |
dc.contributor.author | Oh, Hee-Mock | ko |
dc.contributor.author | Chang, Yong Keun | ko |
dc.date.accessioned | 2021-07-19T08:30:13Z | - |
dc.date.available | 2021-07-19T08:30:13Z | - |
dc.date.created | 2021-07-19 | - |
dc.date.issued | 2021-08 | - |
dc.identifier.citation | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v.9, no.4 | - |
dc.identifier.issn | 2213-3437 | - |
dc.identifier.uri | http://hdl.handle.net/10203/286754 | - |
dc.description.abstract | Open cultivation systems are the most economic option for microalgal biomass production but their harvesting cost, bacterial invasion, and water usage are still deterring large-scale applications. Therefore, in this study, low-cost techniques for harvesting, bacterial disinfection, and medium recycling were sequentially implemented for Ettlia sp. For harvesting, the employed auto-flocculation harvested 96% of algae but was not able to remove bacteria that invaded during cultivation. For this reason, hydrodynamic treatment was applied as a bacterial disinfection method for medium recycling, and treated up to 100% of the bacteria in the supernatant. Afterward, the supernatant was replenished with nutrients and reused to grow microalgae. In medium-recycled cultivation, auto-flocculation recycled (AR) medium showed the highest final biomass concentration of 3.84 g L-1, while the centrifugation recycled (CR) medium and the fresh medium (FM) resulted in 3.78 and 3.67 g L-1, respectively. In addition, the lipid content of the AR group was highly increased to 20.4%, resulting in the highest lipid productivity of 0.11 g L-1 d(-1). Moreover, an analysis of fatty acid methyl ester compositions confirmed that 76.6% of lipid from the AR group were mainly composed of C16-C18, which are suitable for biodiesel. Consequently, the results showed that the implementation of low-cost techniques not only reduced process costs and water usage but also enhances both the biomass and lipid productivities of the species. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Hydrodynamic cavitation for bacterial disinfection and medium recycling for sustainable Ettlia sp. cultivation | - |
dc.type | Article | - |
dc.identifier.wosid | 000670361400004 | - |
dc.identifier.scopusid | 2-s2.0-85103695178 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.issue | 4 | - |
dc.citation.publicationname | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | - |
dc.identifier.doi | 10.1016/j.jece.2021.105411 | - |
dc.contributor.localauthor | Han, Jong-In | - |
dc.contributor.localauthor | Chang, Yong Keun | - |
dc.contributor.nonIdAuthor | Kim, Donghyun | - |
dc.contributor.nonIdAuthor | Cho, Jun Muk | - |
dc.contributor.nonIdAuthor | Nam, Kibok | - |
dc.contributor.nonIdAuthor | Lee, Hansol | - |
dc.contributor.nonIdAuthor | Nayak, Manoranjan | - |
dc.contributor.nonIdAuthor | Oh, Hee-Mock | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Auto-flocculation | - |
dc.subject.keywordAuthor | Bacterial disinfection | - |
dc.subject.keywordAuthor | Ettlia sp. | - |
dc.subject.keywordAuthor | Harvesting | - |
dc.subject.keywordAuthor | Hydrodynamic cavitation | - |
dc.subject.keywordAuthor | Water recycling | - |
dc.subject.keywordPlus | CHLORELLA-VULGARIS | - |
dc.subject.keywordPlus | MIXOTROPHIC CULTIVATION | - |
dc.subject.keywordPlus | MICROALGAE CULTIVATION | - |
dc.subject.keywordPlus | BIODIESEL PRODUCTION | - |
dc.subject.keywordPlus | WATER DISINFECTION | - |
dc.subject.keywordPlus | LIPID PRODUCTIVITY | - |
dc.subject.keywordPlus | BIOMASS | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | PH | - |
dc.subject.keywordPlus | WASTE | - |
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