Comparison of photobioreactors for cultivation of the red microalga Porphyridium sp

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91 Scopus citations

Abstract

The growth of the red microalga it Porphyridium sp was studied in three bench-scale bioreactors of 13 dm3 volume: a bubble column, an airlift reactor and a modified airlift reactor with helical flow promoters in the top of the downcomer. Most of the experiments reported were run with a photon flux density of 250 μE m-2 s-1, but other illuminances were studied as well. Superficial gas velocities were in the range of 5.4 × 10-4 to 82 × 10-4 ms-1 (0.033-0.5 vvm). Algal growth in the airlift reactor with helical flow promoters had lower gas requirements than in the other reactor configurations. This implies lower costs in air compression and in air and CO2 requirements. It was concluded that the advantages found are related to the particular fluid dynamic characteristics of the reactor.

Original languageEnglish
Pages (from-to)1119-1126
Number of pages8
JournalJournal of Chemical Technology and Biotechnology
Volume75
Issue number12
DOIs
StatePublished - 1 Dec 2000

Keywords

  • Algal culture
  • Bioreactor
  • Porphyridium sp

ASJC Scopus subject areas

  • Biotechnology
  • General Chemical Engineering
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

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