This work focused on the potential of Desmodesmus sp. to be employed for wastewater bioremediation and biodiesel production. The green microalga was grown in a culture medium with a phosphorus (P) content of 4.55 mg L-1 simulating an industrial effluent; it was also exposed to a bimetal solution of copper (Cu) and nickel (Ni) for 2 days. P removal was between 94 and 100%. After 2 days of exposure to metals, 94% of Cu and 85% of Ni were removed by Desmodesmus sp. Adsorption tests showed that the green microalga was able to remove up to 90% of Cu and 43% of Ni in less than 30 min. The presence of metals decreased the lipid yield, but biodiesel quality from the biomass obtained from metal exposed samples was higher than that grown without metals. This result revealed that this technology could offer a new alternative solution to environmental pollution and carbon-neutral fuel generation.

Rugnini, L., Costa, G., Congestri, R., Antonaroli, S., Sanita di Toppi, L., Bruno, L. (2018). Phosphorus and metal removal combined with lipid production by the green microalga Desmodesmus sp.: An integrated approach. PLANT PHYSIOLOGY AND BIOCHEMISTRY, 125, 45-51 [10.1016/j.plaphy.2018.01.032].

Phosphorus and metal removal combined with lipid production by the green microalga Desmodesmus sp.: An integrated approach

Rugnini L.
;
Costa G.;Congestri R.;Antonaroli S.;Bruno L.
2018

Abstract

This work focused on the potential of Desmodesmus sp. to be employed for wastewater bioremediation and biodiesel production. The green microalga was grown in a culture medium with a phosphorus (P) content of 4.55 mg L-1 simulating an industrial effluent; it was also exposed to a bimetal solution of copper (Cu) and nickel (Ni) for 2 days. P removal was between 94 and 100%. After 2 days of exposure to metals, 94% of Cu and 85% of Ni were removed by Desmodesmus sp. Adsorption tests showed that the green microalga was able to remove up to 90% of Cu and 43% of Ni in less than 30 min. The presence of metals decreased the lipid yield, but biodiesel quality from the biomass obtained from metal exposed samples was higher than that grown without metals. This result revealed that this technology could offer a new alternative solution to environmental pollution and carbon-neutral fuel generation.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/01
Settore CHIM/07 - Fondamenti Chimici delle Tecnologie
English
Biodiesel; Bioremediation; Green microalgae; Metal biosorption; P removal; Photobioreactor; Biodegradation, Environmental; Chlorophyta; Copper; Lipids; Microalgae; Nickel; Phosphorus
Rugnini, L., Costa, G., Congestri, R., Antonaroli, S., Sanita di Toppi, L., Bruno, L. (2018). Phosphorus and metal removal combined with lipid production by the green microalga Desmodesmus sp.: An integrated approach. PLANT PHYSIOLOGY AND BIOCHEMISTRY, 125, 45-51 [10.1016/j.plaphy.2018.01.032].
Rugnini, L; Costa, G; Congestri, R; Antonaroli, S; Sanita di Toppi, L; Bruno, L
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/201036
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