Continuous sorption of synthetic dyes on dried biomass of microalga Chlorella pyrenoidosa

Horník, Miroslav; Šuňovská, Anna; Partelová, Denisa; Pipíška, Martin; Augustín, Jozef

doi:10.2478/s11696-012-0235-2

Cited by 21 publications

(7 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, the obtained dependencies between Cd or Zn rhizofiltration and the volume of the solution leaving the system (effluent), V eff , or time, t, have the form of an S-shaped breakthrough curve. Similar dependencies were observed, for instance, for (bio)sorption columns packed with sorbent derived from wastes or economically acceptable biomass for contaminants removal from solutions under continuous flow conditions (Charumathi & Das, 2012;Horník et al, 2013). Therefore, the obtained data characterizing the kinetics of Cd or Zn rhizofiltration by the root system of giant reed plants (A. donax L.) in a designed continuous flow rhizofiltration system were described by mathematical models of Bohart-Adams, Clark, Thomas, Yoon-Nelson, Wolborska, or the MDR model.…”

Section: Mathematical Modeling Of CD and Zn Rhizofiltration Kineticssupporting

confidence: 68%

Rhizofiltration potential of Arundo donax for cadmium and zinc removal from contaminated wastewater

et al. 2014

Self Cite

View full text Add to dashboard Cite

The main aim of the presented work was to design and characterize the rhizofiltration system comprised of giant reed plants (Arundo donax L.), as species with phytoremediation potential, for the removal of cadmium as a toxic metal and zinc as an important microelement from model solutions spiked with radionuclides 109 Cd and 65 Zn. The possibility of effective cadmium and zinc rhizofiltration by the root system of giant reed plants under continuous flow conditions to achieve complete decontamination was confirmed. The highest 109 Cd and 65 Zn specific radioactivity (Bq g −1 ; dry mass) was found in case of plants located near the input of the solution into the system, whereby the radioactivity in the plants decreased in the direction of the solution flow within the system. On the other hand, gradual increasing of the concentration ratio [Cd] shoot : [Cd]root within this horizontal plants location was observed. Individual experiments showed that the efficiency of cadmium rhizofiltration decreased in the order of model solutions: synthetic wastewater (χ = 505 µS cm −1 ), deionized water (χ = 29.6 µS cm −1 ), 100 % Hoagland medium (χ = 1675 µS cm −1 ). The same results were also found in case of zinc rhizofiltration. For the description of cadmium and zinc rhizofiltration processes, the kinetic mathematical models widely applied for sorption processes under continuous flow conditions were successfully used.

show abstract

Section: Mathematical Modeling Of CD and Zn Rhizofiltration Kineticssupporting

confidence: 68%

Rhizofiltration potential of Arundo donax for cadmium and zinc removal from contaminated wastewater

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Our previous papers deal with the study of sorption processes and characterisation of sorption capabilities of lichen, moss or algae biomass to bind metals or synthetic dyes (PIPÍŠKA et al, 2007;MAREŠOVÁ et al, 2011;HORNÍK et al, 2013;ŠUŇOVSKÁ et al, 2015). The aim of this work was to evaluate the capability of fine powdered hop (Humulus lupulus L.) biomass as an agricultural by-product to removal of Cd or synthetic dyes thioflavine T (ThT) and methylene blue (MB) from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Removal Of Contaminants From Aqueous Solutions Using Hop (Humulus Lupulus L.) Agricultural By-Products

Partelová¹,

Šuňovská²,

Marešová³

et al. 2015

Nova Biotechnologica Et Chimica

Self Cite

View full text Add to dashboard Cite

Agricultural wastes can be used as an alternative to the existing sorbents for the removal of metals or synthetic dyes from contaminated liquids. In this work, the fine powdered biomass of the hop (Humulus lupulus L.) variety Osvald's clone 72 and variety Bohemie as a sorbent for the removal of Cd from aqueous solutions of CdCl 2 spiked with radionuclide 109 Cd and synthetic dyes thioflavine T (ThT) or methylene blue (MB) from single dye solutions under conditions of batch systems was used. The maximum sorption capacity Q = 264 µmol Cd/g (d.w.) was found in the case of the leaf biomass of hop (H. lupulus L.) variety Osvald's clone 72 at the initial concentration of CdCl 2 10,000 µmol/dm 3 , whereby the sorption capacity decreased in the order Q leaves : Q stems : Q roots = 1.0 : 0.8 : 0.7. The sorbed amount of Cd was removed from the hop biomass with the following increasing desorption efficiency of the extraction reagents: deionised H 2 O << 0.1 mol/dm 3 HCl ≤ 0.1 mol/dm 3 EDTA-Na 2 . Similarly as in the case of Cd sorption, the kinetics of ThT and MB sorption by the leaf biomass of the hop (H. lupulus L.) variety Bohemie were also showed as two-phase processes. The maximum sorption of ThT approx. Q = 19 mg/g (d.w.) and MB approx. Q = 70 mg/g (d.w.) were found within the range of the initial values of pH 4 -7. The sorption of both dyes by the leaf biomass from single dye solutions decreased with increasing biomass concentration and on the other hand increased with increasing the initial concentrations of ThT or MB. The process of ThT and MB sorption was better described by the Langmuir model than the Freundlich model of sorption isotherm. From the obtained values of Q max , it was found that in the case of MB the dried leaf biomass showed more than 2-times higher sorption capacity (Q max = 184 mg/g; d.w.) in comparison with the value predicted for ThT. Obtained results suggest that dried plant biomass of hop (H. lupulus L.) as agricultural by-products can be used as a potential sorbent for both types of studied contaminants.

show abstract

“…These components play a significant role in the adsorption process due to their reactive functional groups, e.g. carboxylate, hydroxyl, amine, phosphate and sulphate groups [20]. Algal biomass as a biosorbent material can be used in a living and non-living form through the sorption process [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Highly efficient adsorptive membrane for heavy metal removal based on Ulva fasciata biomass

Abdelhamid

Labena

Mansor

et al. 2021

Biomass Conv. Bioref.

View full text Add to dashboard Cite

New composite adsorptive membranes were prepared from non-living Ulva fasciata (U), marine algae and cellulose acetate (CA) as polymer matrix to develop CA-U composite membranes with different ratios using the phase inversion technique. These CA-U membranes were used for cadmium (Cd 2+ ) and zinc (Zn 2+ ) ion removal from aqueous media. The prepared membranes were characterized via different instrumental techniques as ATR-FTIR, SEM and EDX in addition to swelling and porosity measurements. Afterwards, they were optimized for Cd 2+ and Zn 2+ removal through one factor at a time (OFAT) trials followed by full factorial design. The morphology and porosity measurements were highly affected by the addition of Ulva fasciata biosorbent and showed a large increase of the size and density of pores of the CA-U membrane. Maximum adsorption capacities (q max ) of 95.2 and 91.7 mg/g were obtained for Cd 2+ and Zn 2+ ions, respectively. Results established that all isotherm models attained R 2 more than 0.9, where the Langmuir isotherm achieved the highest one with R 2 0.9993 for Cd 2+ and 0.9965 for Zn 2+ , and the adsorption process belongs to the pseudo-1st-order kinetic model. The CA-U membrane displayed a higher affinity for Cd 2+ and Zn 2+ ion removal by three to four times than the blank CA membrane. Furthermore, 3R processes (removal, recovery and re-use) were applied and indicated the suitability of this system in heavy metal removal with high efficiency.

show abstract

Continuous sorption of synthetic dyes on dried biomass of microalga Chlorella pyrenoidosa

Cited by 21 publications

References 37 publications

Rhizofiltration potential of Arundo donax for cadmium and zinc removal from contaminated wastewater

Rhizofiltration potential of Arundo donax for cadmium and zinc removal from contaminated wastewater

Removal Of Contaminants From Aqueous Solutions Using Hop (Humulus Lupulus L.) Agricultural By-Products

Highly efficient adsorptive membrane for heavy metal removal based on Ulva fasciata biomass

Contact Info

Product

Resources

About