Marine Microalgae Tetraselmis suecica as Flocculant Agent of Bio-flocculation Method

  • Mujizat Kawaroe Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor Surfactant and Bioenergy Research Centre, Bogor Agricultural University, Bogor
  • Tri Prartono Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor
  • Adriani Sunuddin Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor
  • Deni Saputra Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor
Keywords: bio-flocculation, harvest, microalgae, Tetraselmis suecica

Abstract

Microalgae harvesting is an important part in microalgae cultivation system. Techniques for harvesting marine microalgae which are commonly used are centrifugation, filtration and flocculation. These techniques still have some disadvantages, such as not environment friendly, and high usage of energy and cost. Bio-flocculation harvesting technique using microalgae as a flocculant agent can be an alternative way to solve these problems. In this research, mixing of Tetraselmis suecica (flocculant) with Chlorellasp. and Nannochloropsis sp. (non-flocculant) in ratios of 1:4, 2:4, 3:4 and 4:4 (v/v) has been conducted to obtain percent recovery of marine microalgae harvest. The results showed that T. suecica as flocculant agent can fasten the harvesting of Chlorella sp. and Nannochloropsis sp. It was shown by the increase of percent recovery value of Chlorellasp. from 51.14 ± 1.07% to 67.34 ± 0.67% and Nannochloropsis sp. from 20.52 ± 1.17% to 42.43 ± 0.40% during the first hour of flocculating process. Our result showed that bio-flocculation is an environment friendly technique which can be applied to harvest marine microalgae.

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Published
2016-11-10
How to Cite
KawaroeM., PrartonoT., SunuddinA., & SaputraD. (2016). Marine Microalgae Tetraselmis suecica as Flocculant Agent of Bio-flocculation Method. HAYATI Journal of Biosciences, 23(2), 62. https://doi.org/10.4308/hjb.23.2.62
Section
Articles