A long-term pilot-scale algal cultivation on power plant flue gas ? Cultivation stability and biomass accumulation [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 668.9 Polymers and polymerization

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2020

Mô tả vật lý: Size: Article No. 102115 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 262597

 A long-term culture of a selected freshwater microalgal assemblage on power plant flue gas was realized using a pilot-scale photobioreactor. Different culture conditions of light cycle, harvesting amount, pH stabilization, and sulfur addition were tested during a 12-month continuous operation at a natural gas fired power plant. The results concluded that the daily harvesting amount of 60% with no light-cycle and NH<
 sub>
 4<
 /sub>
 NO<
 sub>
 3<
 /sub>
  as the nitrogen source and pH stabilization agent, resulted in optimal cultivation performance. Biomass concentration and biomass productivity reached 1.07 � 0.23 g L<
 sup>
 -1<
 /sup>
  and 0.43 � 0.14 g L<
 sup>
 -1<
 /sup>
  d<
 sup>
 -1<
 /sup>
 , respectively. During the year-long cultivation period, the algal assemblage was relatively stable with average abundances of 88 � 4% and 12 � 4% for algae and bacteria, respectively, and no significant differences between individual case scenarios. The stable culture fostered a stable biomass composition. Protein, carbohydrate, and lipid contents of the algal biomass were 58.60 � 2.41%, 19.5 � 2.44%, and 9.70 � 1.68%, respectively.
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