Biotechnology of Metal Removal from Industrial Wastewater: Zinc Case Study

Zinicovscaia, Inga; Duca, Gheorghe; Cepoi, Liliana; Chiriac, Tatiana; Rudi, Ludmila; Mitina, Tatiana; Frontasyeva, M. V.; Павлов, С. С.; Gundorina, S. F.

doi:10.1002/clen.201200570

Cited by 26 publications

(12 citation statements)

References 34 publications

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“…To carry out the experiment, S. platensis CNM‐CB‐02 strain was used. The cultivation of Spirulina was carried out according to the procedure described by Zinicovscaia et al After cultivation S. platensis biomass was separated from the cultivation medium by vacuum filtration on track membrane filter with 2 μm pores and dried at 70 °C to constant weight. The biomass was then homogenized at 600 rpm for 10 min and afterwards used in the experiments.…”

Section: Methodsmentioning

confidence: 99%

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Zinicovscaia

Safonov

Трошкина

et al. 2018

CLEAN Soil Air Water

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The potential of Spirulina platensis biomass for rhenium ions removal from both batch solutions and industrial effluents is evaluated. The effect of pH, contact time, initial metal concentration, and the temperature of biosorbent treatment on the biosorption process is investigated. The maximum biosorption capacity of 142.9 mg g−1 rhenium is achieved at pH 2, sorbent dosage 0.05 g, and temperature of biosorbent treatment 30 °C. The equilibrium data are well fitted by Langmuir and Freundlich adsorption isotherm models (R2 = 0.99), while the pseudo‐second order kinetic model (R2 > 0.99) is found to describe better the kinetic data. Fourier‐transform infrared (FTIR) spectra shows that rhenium biosorption takes place through two mechanisms: ionic interactions of perrhenate anions with amide and amino‐groups and/or binding to organic functional groups of the cell surface. The rhenium bound to the biomass can be effectively stripped using NH4OH (8%) and the biomass is effectively used for three sorption–desorption cycles. In the case of industrial effluents, S. platensis biomass shows relatively high rhenium removal efficiency (51–55%). S. platensis biomass can be efficiently applied for rhenium removal from industrial effluents.

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Section: Methodsmentioning

confidence: 99%

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Zinicovscaia

Safonov

Трошкина

et al. 2018

CLEAN Soil Air Water

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“…Due to these features, D. salina became one of the most studied unicellular green alga and a model organism for investigating salt adaption mechanisms. As well as other strains of micro‐algae, D. salina has long been of scientific interest for its ability to bind heavy metals in aqueous solutions and its bioremediation capability. Several investigations have been reported on cadmium, arsenic, lead, mercury, and aluminium uptake by Dunaliella algae .…”

Section: Introductionmentioning

confidence: 99%

The Effects of Operational Parameters on the Iron(III) Uptake by Micro‐Algae Dunaliella salina

Anghel

Duca

Cepoi

et al. 2018

CLEAN Soil Air Water

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The uptake of Fe(III) by living cells of unicellular green algae Dunaliella salina ions is investigated. The effects of operational conditions such as contact time, biomass concentration, initial pH, and initial Fe(III) concentration on iron uptake are studied. The time profile of the Fe(III) uptake by living cells of D. salina shows a time lag in the first 15 min, which is associated with the production of metal chelating agents. In addition, it is found that the optimum pH for maximal iron uptake is 8. At optimal conditions, the uptake is increasing gradually along with the increase of biomass concentration. Furthermore, the uptake increased with the rising of the initial metal ion concentration. Dry samples of iron free and iron containing biomass of D. salina are analyzed using Fourier‐transform infrared (FTIR) spectroscopy. Comparison of the obtained FTIR spectra revealed the presence of amino, carboxylic, hydroxylic, phosphate and sulphonate groups of the lipids, proteins and polysaccharides localized at the cell surface, which are involved in the process of Fe(III) acquisition.

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“…Zinc has a significant role in numerous biological processes involving development of organisms and normal growth as it is a part of several metal-proteins and metal-enzymes (Zinicovscaia et al, 2018). Actuate oxidative pressure, destruction of DNA molecules, and also can lead to the impairment of growth and reproduction can happen if in any case, zinc is present in abundance in water (Finocchio et al, 2010;Zinicovscaia et al, 2015). In this way, the presence of zinc ions in wastewaters indicates a risk to the aquatic ecosystem and increases numerous perils for human beings (Finocchio et al, 2010).…”

Section: Zinc (Zn)mentioning

confidence: 99%

“…In this way, the presence of zinc ions in wastewaters indicates a risk to the aquatic ecosystem and increases numerous perils for human beings (Finocchio et al, 2010). Effluents released from industries engaged in electroplating, galvanization, amalgam production are the frequent source of zinc and other sources of zinc are acid mine drainage, metropolitan wastewater treatment plants, common ores (Ahuja et al, 1999;Zinicovscaia et al, 2015). Extra quantity can cause system dysfunctions that outcome in impairment of growth and reproduction.…”

Section: Zinc (Zn)mentioning

confidence: 99%

A review on feasibility of phytoremediation technology for heavy metals removal

Kumar

2019

Arch. Agric. Environ. Sci.

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Quick jump of urbanization and industrialization is responsible for birth of heavy metal pollution. In the aquatic systems, heavy metals are one of the most dangerous pollutants that may be found. It can have both natural and anthropogenic origins. In aquatic ecosystem heavy metal pollution have a serious hazard to biodiversity of aquatic ecosystems, and drinking polluted water contaminated with heavy metals can have severe health risks in humans as well as in all living-beings. The commercial characteristics and side effects of conservative treatment equipment in aquatic environment flagged the way to eco-sustainable technology like phytoremediation. In phytoremediation, Plants are used to clean up the environment from numerous dangerous contaminants. Phytoremediation is cost-effective and ecofriendly expertise for environmentally friendly cleanup. The present review reflects the characteristics of heavy metals and possible environmental threats together with this, review also inspects the role played by the macrophytes in phytoremediation studies in the recent past. In the reduction of heavy metal contamination in aquatic environments which receive the industrial discharges and municipal wastewater, aquatic macrophytes are powerful tools to remediate them.

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Biotechnology of Metal Removal from Industrial Wastewater: Zinc Case Study

Cited by 26 publications

References 34 publications

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

Biosorption of Re(VII) from Batch Solutions and Industrial Effluents by Cyanobacteria Spirulina platensis

The Effects of Operational Parameters on the Iron(III) Uptake by Micro‐Algae Dunaliella salina

A review on feasibility of phytoremediation technology for heavy metals removal

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