Proton and metal binding capacity of the green freshwater alga Chaetophora elegans

Andrade, A.D.; Rollemberg, M.C.; Nóbrega, J.A.

doi:10.1016/j.procbio.2004.07.007

Cited by 54 publications

(37 citation statements)

References 26 publications

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“…Some bands (472.84 cm -1 ) observed in the ''fingerprint'' region could be attributed to the phosphate group. Andrade et al (2005) revealed that some groups present in lower levels in the algal cells were more difficult to detect with FTIR spectroscopic analysis and the same results were observed on freshwater alga Chaetophora elegans.…”

Section: Ftir Spectroscopic Analysissupporting

confidence: 68%

Entrapment of marine microalga, Isochrysis galbana, for biosorption of Cr(III) from aqueous solution: isotherms and spectroscopic characterization

Kadimpati

Mondithoka²,

Bheemaraju

et al. 2012

Appl Water Sci

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Microalga, Isochrysis galbana, biomass was entrapped into alginate gel by liquid curing method in the presence of Ca(II) ions. The biosorption of chromium(III) by the entrapped live algal biomass was studied in a batch system. The effect of initial cadmium concentration, pH, temperature and liquid and solid ratio on Cr(III) removal was investigated. The maximum experimental biosorption capacities for entrapped live algal biomass were found to be 335.27 mg Cr(III) g -1 of dry algal biomass. The kinetics of chromium biosorption was slow; approximately 75 % of biosorption took place in 2 h. The percent adsorption increased with increase in pH; pH 5 of the solution was found to favor adsorption very strongly. The equilibrium biosorption data were evaluated by Langmuir and Freundlich isotherm models, and was best described by Langmuir and Freundlich isotherms. The biosorbent was characterized and evaluated, the functional groups -OH, -COOH and C=O were involved in the biosorption process. Since binding capacity was relatively high for immobilized live algal biomass, those algal forms are to be considered as suitable biosorbent for the removal of chromium in wastewater treatment.

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Section: Ftir Spectroscopic Analysissupporting

confidence: 68%

Entrapment of marine microalga, Isochrysis galbana, for biosorption of Cr(III) from aqueous solution: isotherms and spectroscopic characterization

Kadimpati

Mondithoka²,

Bheemaraju

et al. 2012

Appl Water Sci

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“…With an increase of the atomic mass, there is a decrease in the so-called cation hydrodynamic beams, and by this their exchange energy is increasing [45]. On the basis of the conducted studies, the affinity columns of metals by sorption structures were determined, eg the alga Cyanidium caldarium: Zn > Mn > Ni > Cu [46], Caulerpa lentillifera: Pb > Cu > Cd > Zn [17], Fucus vesiculosus: Pb > Cu > Cd [47] and Chaetophora elegans: Ni > Zn > Pb > Cd [48]. The algae of the phyla: green algae (Chlorophyta: Caulerpa lentillifera, Chaetophora elegans) and brown algae (Phaeophyta: Fucus vesiculosus) are characterised by convergent affinity columns of heavy metals to their thalli.…”

Section: Physicochemical Parametersmentioning

confidence: 99%

Algae - Heavy Metals Biosorbent / Glony - Biosorbent Metali Ciężkich

Rajfur

2013

Ecological Chemistry and Engineering S

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Abstract:The publication is a synthetic collection of information on the sorption properties of marine and freshwater algae. Kinetics and sorption equilibrium of heavy metals in algae-solution system, influence of abiotic factors on the process of sorption and desorption of analytes from biomass are discussed. In paper the results of laboratory tests conducted using different species and types of algae, which purpose was to assess their usefulness as natural sorbents, are described. The conclusions drawn from current research confirm the results from literature.

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“…The main differences in mechanisms of binding metals ions are the type of the biomass (living or dead) are shown in Fig. 1 [32,33] . The bioaccumulation of heavy metals is closely connected with their toxicity, i.e.…”

Section: Cu and Zn In Animal Feeding: Environmental Effectsmentioning

confidence: 99%

Sustainable Production Process of Biological Mineral Feed Additives

Zielińska¹,

Chojnacka²,

Simonič³

2009

American J. of Applied Sciences

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Problem statement:This study discussed the problem of accumulation of Zn and Cu in the topsoil as a result of application of mineral feed additives that possess low bioavailability in animal diet. The review considered the production process of mineral feed additives in which a product supplies microelements in highly bioavailable form. Enrichment of natural biomass of edible microalgae with microelement metal ions, which supply microelements of feeding significance in livestock diet, is considered in term of sustainable production. Approach: Production of microalgaederived products as mineral feed additives requires elaboration of the processes for cultivation of alga, enrichment process and afterwards recovery of the enriched biomass from the solution to obtain liquid free of cells that could be reused in the next process. In this study membrane bioreactor was considered as a method for separation, both in photobioreactor (growth of microorganism) as well as in the enrichment process. Results: Effort involved in thermal and chemical separation techniques is higher than that in mechanical techniques. Membrane bioreactors which are usually applied to treat wastewater, both industrial and domestic. This study discussed method to separate a valuable biomass of enriched microalgae and reuse the solution with residual metal ions that can be used once again in the subsequent biosorption process. Conclusion/Recommendation: Taking into consideration care about the environment it is better to apply membrane modules in the production process in terms of sustainable production. The proposed solution assumed the application of membrane modules as a separation step after enrichment process and biomass recovery.

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Proton and metal binding capacity of the green freshwater alga Chaetophora elegans

Cited by 54 publications

References 26 publications

Entrapment of marine microalga, Isochrysis galbana, for biosorption of Cr(III) from aqueous solution: isotherms and spectroscopic characterization

Entrapment of marine microalga, Isochrysis galbana, for biosorption of Cr(III) from aqueous solution: isotherms and spectroscopic characterization

Algae - Heavy Metals Biosorbent / Glony - Biosorbent Metali Ciężkich

Sustainable Production Process of Biological Mineral Feed Additives

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