Study of Cu(II) removal by  Cystoseira crinitophylla  biomass in batch and continuous flow biosorption

Christoforidis, A.; Orfanidis, Sotiris; Papageorgiou, Sergios K.; Lazaridou, Anastasia; Favvas, Evangelos P.; Mitropoulos, A.Ch.

doi:10.1016/j.cej.2015.04.138

Cited by 65 publications

(21 citation statements)

References 27 publications

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“…The increase of the bed depth leads to a higher biosorption capacity, which can be attributed to an increase of the available adsorption sites, due to the greater amount of mass in the bed. A similar tendency has been reported by other authors, who have also investigated the effect of bed depth on adsorption using a fixed bed . So, considering that the adsorbent used is derived from the residue of MO seed, and is, therefore, low‐cost, using a bed with a higher height is advantageous compared to the other heights evaluated.…”

Section: Resultssupporting

confidence: 91%

“…An adsorbent material that not only possessed a good adsorption capacity, but also showed favourable regeneration properties would contribute to a significant reduction of the overall cost of the process . Therefore, successful regeneration of the adsorbent can be considered a key process for determining the applicability of an adsorbent in water‐purification applications . The column was regenerated as described previously, and the breakthrough curves obtained are presented in Figure .…”

Section: Resultsmentioning

confidence: 99%

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Low‐cost biosorbent based on Moringa oleifera residues for herbicide atrazine removal in a fixed‐bed column

Homem

Vieira

2018

Can J Chem Eng

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A low‐cost biosorbent based on Moringa oleifera Lam (MO) seed husks was used in order to remove atrazine (ATZ) from aqueous solutions in a continuous system. The influence of some parameters, such as bed depth, flow rate, pH, and inlet concentration, on ATZ biosorption was investigated. The breakthrough and saturation time increased with the increase of bed depth. However, the opposite behaviour was observed for the flow rate. The sorption capacity, breakthrough, and saturation time were similar at all values of pH tested. Increasing the inlet concentration, the MO sorption capacity also increased, while the breakthrough and saturation time decreased. The Adams‐Bohart, Thomas, dose‐response, and Yoon‐Nelson models were applied to predict the breakthrough curves. All models showed good agreement with the experimental data, presenting good values of the correlation coefficient (R2). The results showed that MO seed husks can be effectively used as a biosorbent to remove the atrazine in aqueous solutions, achieving five cycles of biosorption‐desorption without loss of biosorption capacity, which demonstrates the potential of MO as a biosorbent for the removal of ATZ being a low‐cost and efficient alternative to the use of conventional materials.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Low‐cost biosorbent based on Moringa oleifera residues for herbicide atrazine removal in a fixed‐bed column

Homem

Vieira

2018

Can J Chem Eng

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“…The adsorption capacity gradually decreases as biosorbent dose is increased. The increase in adsorbent dose may cause aggregation of adsorbent and consequently the available adsorption sites decrease (21). Another reason may be inter-particle interactions resulting from high adsorbent dose that can lead to the decrease in the total surface area of adsorbent and an increase in diffusional path length (22).…”

Section: Batch Adsorption Experimentsmentioning

confidence: 99%

Biosorption of Cd(II) ions from its aqueous solutions using powdered branches of Trifolium resupinatum: equilibrium and kinetics

Khurram

Farooq

Athar

et al. 2019

Green Chemistry Letters and Reviews

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Cadmium(II) is well known for its toxicity and its removal is a prominent task in the field of environmental research. Trifolium resupinatum (TR) has been investigated for the biosorptive removal of Cd(II). The material was characterized by FTIR and SEM. These well established the nature of functional groups and the surface morphology. The effects of various process parameters including time of contact, concentration, pH and temperature were optimized. The maximum removal was observed at 20 min and a pH of7. The equilibrium was described by the Langmuir model showing the maximum biosorption of 31.95 mg/g. The binding of Cd(II) ions was found to be endothermic in nature. The biosorbent from T. resupinatum was found to adsorb potentially the toxic metal ions from its aqueous solutions.

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“…There are successful methods of wastewater treatment but significant amounts of low concentration of heavy metals in effluents still find their way to the soil and groundwater and at last into the food chain (Christoforidis et al, 2015). Human industrial activities: mining, power industry, electroplating, fertiliser, petrochemical and waste depositing can caused lead contamination.…”

Section: Introductionmentioning

confidence: 99%

Removal of Pb(ii) Using Alginate – Immobilized Myriophyllum Spicatum Beads

Milojković¹,

Stojanović²,

Mihajlović³

et al. 2016

EJSD

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Directive 1999/31/EC requires that biowaste with more than 3% organic content isn't accepted for landfilling directing toward more efficient use of biological material from the landfill. Myriophyllum spicatum is an aquatic weed which grows on every continent except Antarctica and it is noted for its capability to cause different problems, so its growth must be controlled. Utilization of bio-waste in the bioeconomy can be achieved with biosorption. In this study was investigated M. spicatum/alginate (5:1) biosorbent (MsA) for the removal of Pb(II) ions from aqueous solutions. MsA was characterized by Fourier transform infrared spectroscopy. The batch equilibrium was expressed by 5 isotherms and Redlich-Peterson isotherm model provided the best fit with the experimental data. Since, alginate-immobilized M. spicatum beads have superb Pb(II) uptake 200 mg/g they are appropriate cost-effective, environmental friendly biosorbent with potential application for continuous flow reactors. Managing and processing bio-waste must be deployed and integrated to meet the requirements of the sustainability.

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Study of Cu(II) removal by Cystoseira crinitophylla biomass in batch and continuous flow biosorption

Cited by 65 publications

References 27 publications

Low‐cost biosorbent based on Moringa oleifera residues for herbicide atrazine removal in a fixed‐bed column

Low‐cost biosorbent based on Moringa oleifera residues for herbicide atrazine removal in a fixed‐bed column

Biosorption of Cd(II) ions from its aqueous solutions using powdered branches of Trifolium resupinatum: equilibrium and kinetics

Removal of Pb(ii) Using Alginate – Immobilized Myriophyllum Spicatum Beads

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