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Microalgal species growing on piggery wastewater as a valuable candidate for nutrient removal and biodiesel production

Title
Microalgal species growing on piggery wastewater as a valuable candidate for nutrient removal and biodiesel production
Author
전병훈
Keywords
Microalgae; Inorganic constituents; Fatty acids; Piggery wastewater; XRD; FE-SEM; LIPID-ACCUMULATION; LOADING RATES; FATTY-ACID; BIOMASS; ALGAE; PURIFICATION; WASTEWATERS; EXTRACTION
Issue Date
2013-01
Publisher
Elsevier Science LTD
Citation
Journal of Environmental Management, 2013, 115, P.257-264
Abstract
Six microalgal species were examined in this study to determine their effectiveness in the coupling of piggery wastewater treatment and biodiesel production. The dry biomasses of Ourococcus multisporus, Nitzschia cf. pusilla, Chlamydomonas mexicana, Scenedesmus obliquus, Chiorella vulgaris, and Micractinium reisseri were 0.34 +/- 0.08, 0.37 +/- 0.13, 0.56 +/- 0.35, 0.53 +/- 0.30, 0.49 +/- 0.26, and 0.35 +/- 0.08 g dwt/L, respectively. The highest removal of nitrogen (62%), phosphorus (28%), and inorganic carbon (29%) were achieved by C mexicana. In the absence of microalgae, the spontaneous precipitation of phosphorus, calcium, and inorganic carbon occurred at slightly alkaline pH. The highest lipid productivity and lipid content (0.31 +/- 0.03 g/L and 33 +/- 3%, respectively) were found in C mexicana. The fatty acid compositions of the studied species were mainly palmitic, linoleic, a-linolenic, and oleic. The results of our study suggest that C mexicana is one of the most promising candidates for simultaneous nutrient removal and high-efficient biodiesel production. (C) 2012 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S030147971200607X?via%3Dihubhttp://hdl.handle.net/20.500.11754/41453
ISSN
0301-4797; 1095-8630
DOI
10.1016/j.jenvman.2012.11.022
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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