Sorption properties of algae Spirogyra sp. and their use for determination of heavy metal ions concentrations in surface water

Rajfur, Małgorzata; Kłos, A.; Wacławek, Maria

doi:10.1016/j.bioelechem.2010.03.005

Cited by 49 publications

(26 citation statements)

References 35 publications

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“…The sorption preferences are the most frequently determined on the basis of the Langmuir isotherm parameters. However, research shows that these measurements may be subject to a significant error [12]. Table 2 shows the possibility of mutual desorption of heavy metal cations previously absorbed as a result of ion exchange in algae Spirogyra sp.…”

Section: Resultsmentioning

confidence: 99%

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The impact of various cations on the sorption of manganese in the thallus of freshwater algae spirogyra sp. and sea algae palmaria palmata

Rajfur

Jóźwiak

Kłos

2014

Ecological Chemistry and Engineering S

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Due to their occurrence in very different conditions and high resistance to physical and chemical factors, algae are pioneers colonising new environments and their sorption properties are used in biomonitoring and water remediation. The efficiency of the process of heavy metal sorption in algae used for in situ tests depends on abiotic factors, such as the chemical composition of water. Freshwater algae Spirogyra sp. were used in tests. Algae were exposed in the laboratory in manganese chloride solutions with various contents of other cations, including heavy metals and macronutrients. It has been shown that some heavy metals may desorb manganese bound to the surface of algae as a result of ion exchange in the following sequence: Cd 2+ < Mn 2+ ≈ Zn 2+ < Cu 2+ . It has been also found that the competitiveness of sorption of cations naturally present in the alga environment versus Mn 2+ cations changes in the sequence Na + < Ca 2+ < H + , defined for the concentrations referring to the cation unit charge. The results of tests were compared to the results of dried sea algae Palmaria palmata analyses.

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Section: Resultsmentioning

confidence: 99%

“…However, it should be noted that the sorption capacity determined by means of the Langmuir isotherm may be characterised by significant uncertainty of measurements, which is very frequently not stated by the authors [12]. Due to different testing and interpretation methods, it is often difficult to compare the test results.…”

Section: Introductionmentioning

confidence: 99%

The impact of various cations on the sorption of manganese in the thallus of freshwater algae spirogyra sp. and sea algae palmaria palmata

Rajfur

Jóźwiak

Kłos

2014

Ecological Chemistry and Engineering S

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“…When removing metal ions from solutions with the help of biosorbents, many researchers use different initial concentrations of metal ions [5,6] from 2•10 -5 mol/l for algae to several mol/l for biomasses such as Palm flower, Pomegranate peel, Rice bran and others [7][8][9]. So, to determine the sorption ability of Rhodotorulo glutinis cells, a high range of concentrations was used.…”

Section: Resultsmentioning

confidence: 99%

“…1). This is not surprising, as many biosorbents reach maximum removal degree of metal ions from the suspension for 30-60 min [5,10]. So, the contact time of 2 hours was chosen by us for further studies as the time sufficient for the onset of adsorption equilibrium in the system.…”

Section: Resultsmentioning

confidence: 99%

Composite Biosorbents of Metal Ions Based on Yeast Cells and Diatomite

et al. 2013

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The possibility of removing Cu 2+ and Pb 2+ ions from solutions by the yeast cells Rhodotorula glutinis and diatomite (natural mineral) was studied. It is shown that at the concentration of CuSO 4 and Pb(NO 3 ) 2 10 -3 mol/l the removal of metal ions by yeast cells was 59.1 and 72.4% for the ions of Cu 2+ and Pb 2+. The yeast cells surface includes amino, hydroxyl, phosphate and carboxyl groups which activates sorption ability, because these groups can bind metal ions by ion exchange, donor acceptor and electrostatic interactions. The removal degree of metal ions by diatomite under the same conditions was for Cu 2+ 91.6% and for Pb 2+ 94.7%. To increase the removal degree of metal ions from solutions, the yeast cells were immobilized on the surface of diatomite. In order to attach the negatively charged cells of microorganisms with negatively charged surface of the mineral, the surface of diatomite was modified by polyethylenimine (PEI). As a result, the immobilization degree of Rhodotorula glutinis to the surface of diatomite at the concentration of PEI 0.02 base-mol/l increased from 62 to 88%, which is explained by the existence of electrostatic contacts between the negatively charged functional groups of the cell surface and amino groups of PEI, that has covered the surface of diatomite by PEI. It is shown that the obtained composite biosorbent removes 97.8% of Cu 2+ ions and 99.4% of Pb 2+ ions.

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“…The data from the cited literature confirm the results of our own laboratory tests carried out on the sea alga Palmaria palmate and the freshwater alga Spirogyra sp. [22,28]. The dynamic equilibrium during heavy-metal sorption by alga Palmaria palmata stabilised after approx.…”

Section: Kinetics and Equilibria In The Algae-solution Systemmentioning

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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Sorption properties of algae Spirogyra sp. and their use for determination of heavy metal ions concentrations in surface water

Cited by 49 publications

References 35 publications

The impact of various cations on the sorption of manganese in the thallus of freshwater algae spirogyra sp. and sea algae palmaria palmata

The impact of various cations on the sorption of manganese in the thallus of freshwater algae spirogyra sp. and sea algae palmaria palmata

Composite Biosorbents of Metal Ions Based on Yeast Cells and Diatomite

Algae - Heavy Metals Biosorbent / Glony - Biosorbent Metali Ciężkich

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