Phosphate removal by Ion exchange in batch mode

Bektaş, Tijen Ennil; Uğurluoğlu, B. Kıvanç; Tan, Bin

doi:10.2166/wpt.2021.072

Cited by 9 publications

(4 citation statements)

References 31 publications

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“…Because adsorption occurs around the resin's surface, a larger surface area can improve the odds of an adsorbed response. Due to an increase in sorption surface area, proportional phosphate removal increased with increasing resin dose [35]. The increase in adsorbent concentration translates into an increase in active exchangeable adsorption sites [36].…”

Section: Influence Of Fe 3+ -Type Ubk 10 Resin Quantity On Phosphate ...mentioning

confidence: 99%

Influences and Isotherm Models on Phosphorus Removal from Wastewater by Using Fe3+-Type UBK10 Cation Exchange Resin as Absorbent

Juntarasakul

Rawangphai

Phengsaart

et al. 2023

Metals

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Phosphorus is a nutrient that is required for life. Eutrophication, on the other hand, is caused by an overabundance of phosphorus in the hydrosphere. Eutrophication is a form of water pollution that can be solved by removing phosphorus from the environment. Adsorption with cation exchange resin is a more practical method for removing phosphate ions at low concentrations than traditional approaches. The column approach is good for recovering phosphate effectively. As a result, a superior adsorption ability of the column and a practical regeneration process are critical. Accordingly, the goal of this study is to design a phosphate ion recovery system using a Fe-type cation exchange resin (Fe3+-type UBK 10) column. The batch approach was used to investigate the characteristics influencing the adsorption of phosphate ions on Fe-type UBK 10 in order to better comprehend the mechanism of adsorption. The number of phosphate ions adsorbed increased with increasing reaction time, according to the findings. The best results were achieved using 3 g of resin in 0.05 M NaCl at pH 6. The best fit was found in the Langmuir isotherm using equilibrium data.

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Section: Influence Of Fe 3+ -Type Ubk 10 Resin Quantity On Phosphate ...mentioning

confidence: 99%

Influences and Isotherm Models on Phosphorus Removal from Wastewater by Using Fe3+-Type UBK10 Cation Exchange Resin as Absorbent

Juntarasakul

Rawangphai

Phengsaart

et al. 2023

Metals

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“…Different technologies have been explored for the sequestration of dissolved phosphate from water, which include advanced biological treatment, chemical precipitation, ion exchange, electrodialysis, membrane filtration, electro-coagulation, and adsorption [9][10][11][12][13][14][15][16][17][18][19][20][21]. The major shortcomings of some of these techniques include the operational cost, difficulties in operation, and limited versatility.…”

Section: Introductionmentioning

confidence: 99%

One‐Pot Synthesis of ZnO‐Activated Eggshell@kaolinite: Sorbents for Phosphate Capture in Water

Bayode,

Badamasi,

Olusola

et al. 2023

Chem Eng & Technol

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The availability of colossal amounts of phosphate in water bodies has led to serious environmental challenges all over the world. In this study, a new adsorbent was synthesized using treated kaolinite clay, pulverized eggshells, and ZnCl2. Surface characterizationof these adsorbents showed the availability of functional moieties, morphological variations, pore sizes, particle sizes, etc. Adsorption of phosphate occurs via multiple mechanisms, comprising ligand exchange, complexation, hydrogen bonding, and electrostatic interaction, among others. The effect of pH, showed that maximum adsorption of 93.3 % was achieved at pH 3.0. It was also shown that these cost‐effective adsorbents could be regenerated in six cycles, hence increasing their applicability.

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“…According to the recommendations of the World Health Organization (WHO), the permissible levels for nitrates and phosphates in water sources are established at 50 mg/L and 5 mg/L, respectively [ 12 ]. Conventional techniques for eliminating nitrate and phosphate ions from wastewater encompass methods like reduction through diverse approaches, including coagulation, flocculation [ 13 , 14 ], biological treatment [ 15 ], membrane filtration [ 3 ], ion exchange [ 16 ], chemical precipitation [ 17 ], and adsorption methods [ 13 , 18 , 19 ]. Due to the significant drawbacks of the existing methods for removing inorganic pollutants, adsorption is a suitable alternative for removing phosphates and nitrates from liquid effluents.…”

Section: Introductionmentioning

confidence: 99%

Alginate–Moroccan Clay, New Bio-Nanocomposite for Removal of H2PO4−, HPO42−, and NO3− Ions from Aqueous Solutions

Aziam,

Stefan,

Aboussabek

et al. 2023

Polymers

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The aim of this work is to synthesize and characterize alginate–Moroccan clay bio-composite in order to improve our understanding of the adsorption of inorganic pollutants found in textile effluents. Characterization of the bio-composite used was carried out using a variety of techniques (IR-TF, SEM, DRX, and pHZPC). The influence of the medium’s physico-chemical parameters (temperature, pH, initial concentration, etc.) on the retention of inorganic pollutants was also studied. Studies of adsorption and inorganic pollutants such as orthophosphate (H2PO4− and HPO42−) and nitrate (NO3−) ions were carried out, using simple solutions from the laboratory, in a batch system. This study explored the impact of adsorbent dose, contact time, solution pH, and temperature on the adsorption process. Various kinetic models, including pseudo-first-order, pseudo-second-order, intra-particle diffusion, and Elovich models, were tested and evaluated, to illustrate the adsorption kinetics. This study’s findings demonstrated that the adsorption process follows second-order kinetics, with associated rate constants successfully determined. The correlation coefficient for the pseudo-second-order kinetic model is nearly equal to 1 (>0.98), and the value of theoretical adsorption capacity (qe,the) is comparable to the experimental one (qe,the = 58.14 mg/g for H2PO4−, qe,the = 54.64 mg/g for HPO42−, and qe,the = 52.63 mg/g for NO3−). Additionally, the adsorption equilibrium was investigated through the application of various mathematical models, including the Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich isotherm models, to assess the mechanistic parameters associated with the adsorption process. Among these models, the Langmuir isotherm emerged as the most suitable one for characterizing the adsorption of H2PO4−, HPO42−, and NO3− ions using bio-nanocomposite beads. The maximum adsorbed amounts of metal ions by the bio-nanocomposite used were 625 mg/g for H2PO4−, 909.09 mg/g for HPO42−, and 588.23 mg/g for NO3− from the batch system. The endothermic and physical nature of the adsorption is suggested by the positive values of ΔH°, which is consistent with experimental findings. The adsorption process is spontaneous, as evidenced by the negative ΔG° values. Positive ΔS° values indicate increased randomness at the solid/liquid interface during adsorption of ion-organic ions onto the engineered bio-nanocomposite. The obtained results demonstrated that, from a scientific perspective, alginate–Moroccan clay bio-nanocomposites exhibit a highly significant adsorption capability for the removal of oxyanions in aqueous environments.

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Phosphate removal by Ion exchange in batch mode

Cited by 9 publications

References 31 publications

Influences and Isotherm Models on Phosphorus Removal from Wastewater by Using Fe3+-Type UBK10 Cation Exchange Resin as Absorbent

Influences and Isotherm Models on Phosphorus Removal from Wastewater by Using Fe3+-Type UBK10 Cation Exchange Resin as Absorbent

One‐Pot Synthesis of ZnO‐Activated Eggshell@kaolinite: Sorbents for Phosphate Capture in Water

Alginate–Moroccan Clay, New Bio-Nanocomposite for Removal of H2PO4−, HPO42−, and NO3− Ions from Aqueous Solutions

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