Effect of Fe2+ and Fe 3+ on the Growth of Microcystis aeruginosa, Scenedesmus quadricauda and Cyclotella sp.

Qin Wang; Zong Xue Xu; Xia Jiang; Ji Xi Gao

doi:10.4028/www.scientific.net/AMR.183-185.510

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 183-185Effect of Fe2+ and Fe 3+ on the Growth of...

Effect of Fe²⁺ and Fe ³⁺ on the Growth of Microcystis aeruginosa, Scenedesmus quadricauda and Cyclotella sp.

Abstract:

Ferrum is one of the important nutrient sources for algae in lakes. The changes of concentration in water body have great effect on the formation of dominant algae. Microcystis aeruginosa, Scenedesmus quadricauda and Cyclotella were examined in M11 culture medium which included different Fe²⁺ and Fe³⁺ concentration. Growth curves of these three algae were fitted by logistic growth-model, respectively. The maximum biomass K, inflection t and growth rate µ of those algae were investigated. The effects of Fe²⁺ and Fe³⁺ on the growth of algae were investigated by using the Monod equation. The semi-saturation constants were calculated. The results showed that the maximum biomass of these three algae did not increase with the increasing of Fe²⁺ and Fe³⁺ concentration. Low concentration of Fe²⁺ (200-500 mg/L) and high concentration of Fe³⁺ (2000-5000 mg/L) were more suitable to the growth of three algae. The sequence of the maximum biomass was: Scenedesmus quadricauda>Microcystis aeruginosa>Cyclotella.

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Periodical:

Advanced Materials Research (Volumes 183-185)

Pages:

510-515

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.183-185.510

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Online since:

January 2011

Authors:

Qin Wang, Zong Xue Xu, Xia Jiang, Ji Xi Gao

Keywords:

Cyclotella, Fe²⁺, Fe³⁺, Microcystis aeruginosa, Scenedesmus Quadricauda

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