HARVESTING OF MICROALGA NANOCHLOROPSIS OCULATA BIOMASS USING ELECTRO-FLOCCULATION TECHNIQUE

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JABERI A.; ROHANI GHADIKOLAEI K.; MOHAMMADIZADEH F.

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Journal: JOURNAL OF AQUATIC ANIMALS & FISHERIES Year:2012 | Volume:3 | Issue:10 Page(s): 27-34

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Title

HARVESTING OF MICROALGA NANOCHLOROPSIS OCULATA BIOMASS USING ELECTRO-FLOCCULATION TECHNIQUE

Author(s)

JABERI A. | ROHANI GHADIKOLAEI K. | MOHAMMADIZADEH F. | Issue Writer Certificate

Keywords

MICROALGAEQ2

NANOCHLOROPSIS OCULATAQ2

FLOCCULATION EFFICIENCYQ2

ELECTRO-FLOCCULATIONQ2

AQUACULTUREQ2

Abstract

Due to small size of MICROALGAE and low concentration in the culture medium, cost-efficient harvesting of MICROALGAE is a major challenge. In the present study, the possibility of using ELECTRO-FLOCCULATION technique (direct current) for harvesting of microalga NANOCHLOROPSIS OCULATA biomass from the culture broth was investigated. The microalga biochemical composition and chlorophyll a content, and viability of N. oculata cells were determined on concentrated microalgal cells after 10 days of ELECTRO-FLOCCULATION. The results from the biochemical analysis and chlorophyll a measurements indicated that N. oculata flocculated cells showed no sign of degradation in biochemical composition and chlorophyll a from ELECTRO-FLOCCULATION as compared to control. Moreover, the results clearly showed that, FLOCCULATION EFFICIENCY improved with increasing direct current. Between 3-10 V; the FLOCCULATION EFFICIENCY was as high as 85-97.0%. The highest FLOCCULATION EFFICIENCY, 97.0%, was obtained at 10 V, of 30 minutes and with short settling time of 2 hours. The cell viability obtained in flocculation with direct current (3-10 V) showed cells in good shape and indistinguishable from non-flocculated cells when viewed by light microscopy. This study demonstrated that ELECTRO-FLOCCULATION is an effective method to flocculate N. oculata cells; therefore, it could be considered as a cost-effective alternative for preparing microalgal concentrates for the AQUACULTURE industry and hatcheries.

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APA: Copy

JABERI, A., ROHANI GHADIKOLAEI, K., & MOHAMMADIZADEH, F.. (2012). HARVESTING OF MICROALGA NANOCHLOROPSIS OCULATA BIOMASS USING ELECTRO-FLOCCULATION TECHNIQUE. JOURNAL OF AQUATIC ANIMALS & FISHERIES, 3(10), 27-34. SID. https://sid.ir/paper/219752/en

Vancouver: Copy

JABERI A., ROHANI GHADIKOLAEI K., MOHAMMADIZADEH F.. HARVESTING OF MICROALGA NANOCHLOROPSIS OCULATA BIOMASS USING ELECTRO-FLOCCULATION TECHNIQUE. JOURNAL OF AQUATIC ANIMALS & FISHERIES[Internet]. 2012;3(10):27-34. Available from: https://sid.ir/paper/219752/en

IEEE: Copy

A. JABERI, K. ROHANI GHADIKOLAEI, and F. MOHAMMADIZADEH, “HARVESTING OF MICROALGA NANOCHLOROPSIS OCULATA BIOMASS USING ELECTRO-FLOCCULATION TECHNIQUE,” JOURNAL OF AQUATIC ANIMALS & FISHERIES, vol. 3, no. 10, pp. 27–34, 2012, [Online]. Available: https://sid.ir/paper/219752/en

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