Brown marine macroalgae as natural cation exchangers for toxic metal removal from industrial wastewaters: A review

Mazur, Luciana P.; Cechinel, Maria Alice Prado; Souza, Selene M.A. Guelli U. de; Boaventura, Rui A.R.; Vilar, Vítor J.P.

doi:10.1016/j.jenvman.2018.05.086

Cited by 90 publications

(42 citation statements)

References 148 publications

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“…In recent years, agriculture and the mining, chemical fertilizer, leather, battery and paper industries have developed vigorously, and the phenomenon of heavy metal wastewater directly or indirectly being discharged into the environment has become more and more serious, particularly in developing countries [1,2]. Heavy metal ions in wastewater are mainly comprised of zinc (Zn), nickel (Ni), cadmium (Cd), copper (Cu) and so on.…”

Section: Introductionmentioning

confidence: 99%

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

et al. 2019

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Calcium alginate (CA) beads as a green sorbent were easily fabricated in this study using sodium alginate crosslinking with CaCl2, and the crosslinking pathway was the exchange between the sodium ion of α-L-guluronic acid and Ca(II). The experimental study was conducted on Cu(II), Cd(II), Ni(II) and Zn(II) as the model heavy metals and the concentration was determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The characterization and sorption behavior of the CA beads were analyzed in detail via using scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The adsorption experiments demonstrated that the CA beads exhibited a high removal efficiency for the selective adsorption of Cu(II) from the tetra metallic mixture solution and an excellent adsorption capacity of the heavy metals separately. According to the isotherm studies, the maximum uptake of Cu(II) could reach 107.53 mg/g, which was significantly higher than the other three heavy metal ions in the tetra metallic mixture solution. Additionally, after five cycles of adsorption and desorption, the uptake rate of Cu(II) on CA beads was maintained at 92%. According to the properties mentioned above, this material was assumed to be applied to reduce heavy metal pollution or recover valuable metals from waste water.

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Section: Introductionmentioning

confidence: 99%

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

et al. 2019

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“…This is a surface phenomenon in which metal ions from aqueous solutions are passively bound by a non-living biomass [ 5 – 11 ]. Several operating conditions, such as solution pH, metal ions concentration, biomass size and its content in the solution, contact time, etc., influence the amount of metal ions bound with the biomass [ 8 , 9 , 11 , 12 , 13 ]. The choice of metal ion that will be sorbed by the biomass depends on the animal species and animal's requirement for a given nutrient.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive analysis of biosorption of metal ions by macroalgae using ICP-OES, SEM-EDX and FTIR techniques

Michalak¹,

Mironiuk²,

Marycz³

2018

PLoS ONE

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In the present study, a comprehensive approach to the biosorption process was proposed. Biosorption of Cr(III), Mn(II) and Mg(II) ions by a freshwater macroalga Cladophora glomerata was examined using several advanced techniques including FTIR (Fourier Transform Infrared Spectroscopy), ICP-OES (Inductively Coupled Plasma–Optical Emission Spectrometry) and SEM-EDX (Scanning Electron Microscopy with Energy Dispersive X-Ray Spectroscopy). The enriched biomass can become a valuable, bioactive feed additive for different breeds of animals. Additionally, the collected algal biomass was soaked in water in order to reduce the content of carbohydrate, what is especially important for animals with metabolic disorders. The content of starch was reduced by 22% but additionally some elements–mainly Si, K and P were removed from the biomass. It was shown that the natural macroalga had better biosorption properties than soaked. Cr(III) ions were sorbed by the biomass in the highest extent, then Mn(II) and finally Mg(II) ions. The content of chromium in the enriched algal biomass increased almost ~200 000 times, manganese ~75 times and magnesium ~4.5 times (both for Mg(II) ions used from magnesium sulphate, as well as from magnesium chloride) when compared to the natural Cladophora glomerata. In the case of the soaked biomass the increase of the content of elements in the enriched biomass was as follows ~17 165 times for Cr, ~25 times for Mn and for Mg ~3.5 times for chloride and 3.8 times for sulphate. The type of magnesium salt (chloride or sulphate) had no significant effect on the algal sorption capacity. The proposed mechanism of the biosorption is ion exchange in which mainly potassium participated. The applied FTIR analysis enabled the identification of the functional groups that participated in the biosorption process–mainly carboxyl and hydroxyl. The main changes in the appearance of the spectra were observed for the following wavenumbers– 3300–3400; 2900; 1700; 1400–1500 and 1200–1300 cm-1. The application of SEM-EDX proved that the metal ions were sorbed on the surface of both tested algae.

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“…from industrial effluents or wastewaters because of their high metal uptake capacities 20 . Contrary to bioaccumulation or biodegradation, metal removal mechanism in biosorption is not metabolically controlled 21,22 . Metal uptake in biosorption is mainly carried out through the interaction between metal ions and the cell walls of the biosorbents.…”

Section: Inorganic Platformmentioning

confidence: 99%

“…The constituents of the biomass cell wall determine the biosorption capacity. In particular, the cell wall of brown algae is made of cellulose, which forms the fibrous skeleton, and alginate and fucoidan that constitute the amorphous embedding matrix 26 21 . A sequential or a cascading approach is thus necessary to develop simultaneous multiple extractions' protocol 27,28 .…”

Section: Inorganic Platformmentioning

confidence: 99%

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Novel macroalgae (seaweed) biorefinery systems for integrated chemical, protein, salt, nutrient and mineral extractions and environmental protection by green synthesis and life cycle sustainability assessments

et al. 2019

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Brown marine macroalgae as natural cation exchangers for toxic metal removal from industrial wastewaters: A review

Cited by 90 publications

References 148 publications

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

The Fabrication of Calcium Alginate Beads as a Green Sorbent for Selective Recovery of Cu(Ⅱ) from Metal Mixtures

A comprehensive analysis of biosorption of metal ions by macroalgae using ICP-OES, SEM-EDX and FTIR techniques

Novel macroalgae (seaweed) biorefinery systems for integrated chemical, protein, salt, nutrient and mineral extractions and environmental protection by green synthesis and life cycle sustainability assessments

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