Structure, dissolution, and plant uptake of ferrous/zinc phosphates

Knijnenburg, Jesper T.N.; Laohhasurayotin, Kritapas; Khemthong, Pongtanawat

doi:10.1016/j.chemosphere.2019.02.024

Cited by 16 publications

(4 citation statements)

References 47 publications

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“…Thus, we estimate the obtained poorly crystalized ferrihydrite has a Pi sorption capacity around 344 mg P/g (details in SI 3), which is much higher than common values (34~56 mg P/L) reported for ferrihydrite [59,60]. We attribute this high sorption capacity to the possible formation of amorphous strengite (FePO4) [61,62] as the Fe:P ratio is close to 1:1. Apparently, extensive Mg dissolution causes formation of ultra-small ferrihydrite particles, leading to a strengite type product [63].…”

Section: Dissolution Of Fe 3 O 4 @Sio 2 -Mgfe Ldh During P I Sorptionmentioning

confidence: 68%

Stability of magnetic LDH composites used for phosphate recovery

Lu¹,

Kim²,

Bendix³

et al. 2020

Journal of Colloid and Interface Science

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Layered double hydroxides (LDH) and their magnetic composites have been intensively investigated as recyclable high-capacity phosphate (P) sorbents but with little attention to their stability as function of pH and phosphate concentration. The stability of a Fe3O4@SiO2-Mg3Fe LDH P sorbent as function of pH (5-11) and orthophosphate (Pi) concentration (1-300 mg P/L) was investigated. The composite has high adsorption capacity (approx. 80 mg P/g) at pH 5 but with fast dissolution of the LDH component resulting in formation of ferrihydrite evidenced by Mössbauer spectroscopy. At pH 7 more than 60 % of the LDH dissolves within 60 min, while at alkaline pH, the LDH is more stable but with less than 40 % adsorption capacity as compared to pH 5. The high Pi sorption at acid to neutral pH is attributed to Pi bonding to the residual ferrihydrite. Under alkaline conditions Pi is sorbed to LDH at low Pi concentration while magnesium phosphates form at higher Pi concentration evidenced by solid-state 31 P MAS NMR, powder X-ray diffraction and chemical analyses. Sorption as function of pH and Pi concentration has been fitted by a Rational 2D function allowing for estimation of Pi sorption and precipitation. In conclusion, the instability of the LDH component limits its application in wastewater treatment from acid to alkaline pH. Future use of magnetic LDH composites requires substantial stabilisation of the LDH component.

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Section: Dissolution Of Fe 3 O 4 @Sio 2 -Mgfe Ldh During P I Sorptionmentioning

confidence: 68%

Stability of magnetic LDH composites used for phosphate recovery

Lu¹,

Kim²,

Bendix³

et al. 2020

Journal of Colloid and Interface Science

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“…Soil pH is anti-proportional to the availability of Zn in soil solution for plant uptake. High soil pH renders Zn desorption in clay and organic matter particles, thus decreasing Zn 2+ phyto-availability [ 36 ].…”

Section: Dynamics and Management Of Zincmentioning

confidence: 99%

Interaction of Zinc Mineral Nutrition and Plant Growth-Promoting Bacteria in Tropical Agricultural Systems: A Review

Jalal,

Júnior,

Teixeira Filho

2024

Plants

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The relationship between zinc mineral nutrition and plant growth-promoting bacteria (PGPB) is pivotal in enhancing agricultural productivity, especially in tropical regions characterized by diverse climatic conditions and soil variability. This review synthesizes and critically evaluates current knowledge regarding the synergistic interaction between zinc mineral nutrition and PGPB in tropical agricultural systems. Zinc is an essential and fundamental micronutrient for various physiological and biochemical processes in plants. Its deficiency affects plant growth and development, decreasing yields and nutritional quality. In tropical regions, where soil zinc availability is often limited or imbalanced, the PGPB, through different mechanisms such as Zn solubilization; siderophore production; and phytohormone synthesis, supports Zn uptake and assimilation, thereby facilitating the adverse effects of zinc deficiency in plants. This review outlines the impacts of Zn–PGPB interactions on plant growth, root architecture, and productivity in tropical agricultural systems. The positive relationship between PGPB and plants facilitates Zn uptake and improves nutrient use efficiency, overall crop performance, and agronomic biofortification. In addition, this review highlights the importance of considering indigenous PGPB strains for specific tropical agroecosystems, acknowledging their adaptability to local conditions and their potential in sustainable agricultural practices. It is concluded that Zn fertilizer and PGPBs have synergistic interactions and can offer promising avenues for sustainable agriculture, addressing nutritional deficiencies, improving crop resilience, and ensuring food security.

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“…This agrees with the pH values obtained in these leachates, which show a decrease in pH value from the first leachate (7.01) to the last leachate (6.41). The use of columns filled with a porous and inert medium, such as washed sand, has recently been used to evaluate the environmental behavior, dissolution kinetics and leaching capacity of different products [28,[33][34][35]. The products tested in the columns formed by the most soluble species (ZnSO4 and Zn-Mn-H2SO4 at both concentrations) released a substantial and rapid amount of Zn and Mn.…”

Section: Leached Mn In Sand Columnsmentioning

confidence: 99%

Advances in the Sustainable Production of Fertilizers from Spent Zinc-Based Batteries

Barragán-Mantilla,

Ortiz,

Almendros

et al. 2024

Sustainability

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Wastes from spent batteries are a secondary source of raw materials. To ensure this, it is mandatory to design sustainable and low-cost processes. In the case of alkaline and zinc–carbon-based batteries, the high content of Zn and Mn makes them of interest in the development of fertilizers. The main objective of this research is to study the fertilizers production from spent zinc-based batteries, using sulfuric acid, citric acid (CIT) and glycine (GLY) solutions as leaching agents. Leaching with glycine at alkaline pHs shows a high selectivity of Zn over Mn, whereas the use of citric and sulfuric solutions leads to recoveries of Zn and Mn. Solutions with the highest Zn recoveries were tested in sand columns. Commercial ZnSO4 heptahydrate was used as a control. For sulfuric acid, two solutions (H2SO4 2M and 0.25M) were used. The elution of leached Zn and Mn in sand columns depended on the solution added. The Zn-Mn-CIT treatment showed a slight but steady increase in the leachates, reaching 70% and 75% of the total leached Zn and Mn, respectively, in the medium term. The Zn-Mn-H2SO4 2M and ZnSO4 treatments showed a similar behavior in Zn release. Both Zn-Mn-GLY and Zn-Mn-H2SO4 0.25M treatments showed similar amounts of leached Mn in the medium term (77% of total leached Mn), differing in the leached Zn. Solutions from the leaching of spent black mass batteries, especially Zn-Mn-CIT or Zn-Mn-GLY, showed promising behavior as fertilizer from the point of view of Zn and Mn availability as nutrients.

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Structure, dissolution, and plant uptake of ferrous/zinc phosphates

Cited by 16 publications

References 47 publications

Stability of magnetic LDH composites used for phosphate recovery

Stability of magnetic LDH composites used for phosphate recovery

Interaction of Zinc Mineral Nutrition and Plant Growth-Promoting Bacteria in Tropical Agricultural Systems: A Review

Advances in the Sustainable Production of Fertilizers from Spent Zinc-Based Batteries

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