Enhanced phosphate removal by zeolite loaded with Mg–Al–La ternary (hydr)oxides from aqueous solutions: Performance and mechanism

Shi, Wenmin; Fu, Youwei; Jiang, Wei; Ye, Yuanyao; Kang, Jianxiong; Liu, Dongqi; Ren, Yongzheng; Li, Daosheng; Luo, Chunguang; Xu, Zhi

doi:10.1016/j.cej.2018.08.003

Cited by 267 publications

(52 citation statements)

References 51 publications

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“…To date, many materials have been developed for the phosphate removal (Huang et al 2017b;Liu et al 2018;Ye et al 2017). Due to the strong specific affinity between phosphate ions and metal sites, oxides and hydroxides of metals and their modifications have been widely used to remove phosphate from wastewater (Hu et al 2017;Shi et al 2019;Tang et al 2019;Xu et al 2017).…”

Section: Introductionmentioning

confidence: 99%

The adsorption of phosphate using a magnesia–pullulan composite: kinetics, equilibrium, and column tests

Jiao²,

Kang

et al. 2019

Environ Sci Pollut Res

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Amagnesia-pullulan (MgOP) composite has been developed to remove phosphate from a synthetic solution. In the present study, the removal of phosphate by MgOP was evaluated in both a batch and dynamic system. The batch experiments investigated the initial pH effect on the phosphate removal efficiency from pH 3 to 12 and the effect of co-existing anions. In addition, the adsorption isotherms, thermodynamics, and kinetics were also investigated. The results from the batch experiments indicate that MgOP has encouraging performance for the adsorption of phosphate, while the initial pH value (3-12) had a negligible influence on the phosphate removal efficiency. Analysis of the adsorption thermodynamics demonstrated that the phosphate removal process was endothermic and spontaneous. Investigations into the dynamics of the phosphate removal process were carried out using a fixed bed of MgOP, and the resulting breakthrough curves were used to describe the column phosphate adsorption process at various bed masses, volumetric flow rates, influent phosphate concentrations, reaction temperatures, and inlet pH values. The results suggest that the adsorption of phosphate on MgOP was improved using an increased bed mass, while the reaction temperature did not significantly affect the performance of the MgOP bed during the phosphate removal process. Furthermore, higher influent phosphate concentrations were beneficial towards increasing the column adsorption capacity for phosphate. Several mathematic models, including the Adams-Bohart, Wolboska, Yoon-Nelson, and Thomas models, were employed to fit the fixed-bed data. In addition, the effluent concentration of magnesium ions was measured and the regeneration of MgOP investigated.

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Section: Introductionmentioning

confidence: 99%

The adsorption of phosphate using a magnesia–pullulan composite: kinetics, equilibrium, and column tests

Jiao²,

Kang

et al. 2019

Environ Sci Pollut Res

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“…Setting the breakthrough point at 0.5 mg/L and initial phosphate concentration at 1 mg/L showed an effective treatment volume of 4,800 and 2,530 BV using a flow rate of 7.5 and 22.5 mL/min, respectively. According to this report SO 4 2À , NO 3 À and Cl À showed an insignificant competitive effect (Shi et al 2019).…”

Section: Zeolites and Clay Adsorbentsmentioning

confidence: 74%

“…In La(OH) 3 modified magnetic pineapple biochar exchange of -OH from La-OH with phosphate to form La-O-P, inner-sphere complexation was one of the removal mechanisms reported (Liao et al 2018). Reported research indicates that La metal played a key role in the complexation of phosphate (Drenkova-Tuhtan et al 2017;Rashidi Nodeh et al 2017;Jiang et al 2018;Shi et al 2019). Moreover, in adsorbents such as MgO-modified magnetic biochar (MgO@MBC), surface complexation can be formed between Fe-O/Mg-O and phosphate (Fe-O-P/Mg-O-P) (Liu et al 2019a(Liu et al , 2019b.…”

Section: Ion Exchangementioning

confidence: 99%

A comprehensive review on nitrate and phosphate removal and recovery from aqueous solutions by adsorption

Gizaw

Zewge

Kumar

et al. 2021

Journal of Water Supply: Research and Technology-Aqua

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Nitrogen and phosphorus removal and recovery are considered as one of the interventions to control water bodies' eutrophication by application of various methods. Adsorption is an effective method for phosphate and nitrate removal from wastewater. It is efficient, quick, easy, low-cost and environmentally friendly. Even though different adsorbents have been developed with excellent properties, lack of compilation, lack of consistency in operational conditions, and lack of other important parameters used for direct comparison and practical use selection were observed. The first aim of this review is to provide facts and figures on novel adsorbents used for nitrate, phosphate, and simultaneous nitrate-phosphate removal and recovery. Second, various adsorbents applied for nitrate and phosphate removal have been compared in terms of the number of cycles that the adsorbent used; retained removal capacity (RR); the removal capacity of the adsorbent considering the threshold limit settled by EU and EPA as equilibrium concentration for phosphate (q0.1) and nitrate (q10); and time to reach the equilibrium capacity (t90). Third, based on the afore-mentioned criteria, the best adsorbents is proposed and this is the key novelty of this review work. Moreover, future aspects and challenges regarding nitrate and phosphate removal and recovery are presented.

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“…They are also generated from orthophosphate in biological treatment processes [2]. There are numerous methods to remove phosphorus from aqueous solution such as membrane filtration, biological treatment and chemical precipitation [3]. Membrane filtration is an efficient method for the removal of phosphorus but high cost has limited its application in practice [4].…”

Section: Introductionmentioning

confidence: 99%

High efficient removal of phosphate in aqueous solution by eco-friendly materials

Quyen¹

2021

JST-UD

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The efficiency of phosphate removal in aqueous solution by CaO, Ca(OH)2 and CaCO3 has been studied in this work. Batch of experiments conducted with the initial phosphate concentrations from 5 to 1000 ppm have shown that CaCO3 could be applied for phosphate removal at low concentration with the maximum phosphate removal capacity at 4.0 mg/g. In contrast, the highest phosphate removal capacity of CaO and Ca(OH)2 was 287.36 mg/g and 235.21 mg/g at initial concentration of 500 ppm, and phosphate removal rate was 85% and 97% at initial concentration of 5 ppm. Crystalline hydroxylapatite was detected in the precipitate by XRD analysis. The molar ratio of P in the precipitate and Ca in the materials (CaO and Ca(OH)2) was 0.52 and 0.56 at initial concentration of 500 ppm, compared to P/Ca molar ratio of 0.6 in hydroxylapatite. Moreover, hydroxylapatite is the main component of fertilizer that can be applied for agriculture.

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Enhanced phosphate removal by zeolite loaded with Mg–Al–La ternary (hydr)oxides from aqueous solutions: Performance and mechanism

Cited by 267 publications

References 51 publications

The adsorption of phosphate using a magnesia–pullulan composite: kinetics, equilibrium, and column tests

The adsorption of phosphate using a magnesia–pullulan composite: kinetics, equilibrium, and column tests

A comprehensive review on nitrate and phosphate removal and recovery from aqueous solutions by adsorption

High efficient removal of phosphate in aqueous solution by eco-friendly materials

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