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Carbon Dioxide Fixation by Algal Cultivation Using Wastewater Nutrients
Author(s) -
Yun YeoungSang,
Lee Sun Bok,
Park Jong Moon,
Lee ChoongIl,
Yang JiWon
Publication year - 1997
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199708)69:4<451::aid-jctb733>3.0.co;2-m
Subject(s) - wastewater , chlorella vulgaris , flue gas , carbon dioxide , nutrient , phosphate , chemistry , pulp and paper industry , sewage treatment , environmental science , environmental chemistry , environmental engineering , botany , algae , biology , organic chemistry , engineering
Chlorella vulgaris was cultivated in wastewater discharged from a steel‐making plant with the aim of developing an economically feasible system to remove ammonia from wastewater and CO 2 from flue gas simultaneously. Since no phosphorus compounds existed in wastewater, external phosphate (15·3–46·0 g m −3 ) was added to the wastewater. After adaptation to 5% (v/v) CO 2 , the growth of C . vulgaris was significantly improved at a typical concentration of CO 2 in flue gas of 15% (v/v). Growth of C . vulgaris in raw wastewater was better than that in wastewater buffered with HEPES at 15% (v/v) CO 2 . CO 2 fixation and ammonia removal rates were estimated as 26·0 g CO 2 m −3 h −1 and 0·92 g NH 3 m −3 h −1 , respectively, when the alga was cultivated in wastewater supplemented with 46·0 g PO 4 3 m −3 without pH control at 15% (v/v) CO 2 . © 1997 SCI.