Phosphorus recovery from cattle manure bottom ash by extraction and precipitation methods

Yang, Heejin; Kang, Jin‐Kyu; Park, Seong‐Jik; Lee, Changgu

doi:10.1007/s11356-022-18934-4

Cited by 8 publications

(3 citation statements)

References 57 publications

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“…The plants were uniformly distributed throughout the growth system (hydroponics, in this case), and so they functioned as a uniform sink for water and ions at any given time. (3) The uptake of nutrients by the root system was not affected by root exudates and rhizosphere microorganisms.…”

Section: Modeling For the P Uptake In P-sorbent D -Fertilized Hydropo...mentioning

confidence: 97%

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Sludge-Based Superparamagnetic Nano-Sorbent Functionalized by Lanthanum Silicate Nanorods for Phosphorus Adsorption and Fertilization

Zhao,

Wang,

Ren

et al. 2024

Recycling

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Phosphorus (P) recovery from wastewater is considered to be a positive human intervention towards sustainable P use in the global P cycle. This study investigated the feasibility of synthesizing a superparamagnetic nano-sorbent that was functionalized by lanthanum silicate nanorods (NRLa-Si) using drinking water treatment sludge (DWTS), evaluating both its P adsorption capacity and fertilization effect. The DWTS-based La-modified P nano-sorbent (P-sorbent D) exhibited complicated but single-layer-dominant adsorption for phosphate, with a maximum adsorption capacity up to 26.8 mg/g, which was superior to that of most of the similar sludge-based P-sorbent. The NRLa-Si-modified P-sorbent D was identified with several characterization techniques and the leaching metal elements from the nano-sorbent were tested, which were below the limits proposed by the Food and Agriculture Organization of the United Nations. In addition, the growth and vigorousness of Arabidopsis thaliana indicated that the exhausted P-sorbent D could be used as a potential water-soluble moderate-release P fertilizer, which was also confirmed by the well-fitted P uptake model and the P desorption pattern from the sorbent–fertilizer. The doped lanthanum silicate nanorods could play the dual role of P complexation enhancement and health/growth promotion. In light of this, this study proposed a new way of reclaiming DWTS as a P-sorbent for fertilization, offering new insights into the path toward “closing the P loop”.

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Section: Modeling For the P Uptake In P-sorbent D -Fertilized Hydropo...mentioning

confidence: 97%

“…DWTS should be properly treated and disposed of. Recent studies have explored the potential of utilizing it for pollutant control [2,3]. For instance, it was reported that DWTS could be effectively transformed into value-added eco-concrete blocks through CO 2 curing.…”

Section: Introductionmentioning

confidence: 99%

Sludge-Based Superparamagnetic Nano-Sorbent Functionalized by Lanthanum Silicate Nanorods for Phosphorus Adsorption and Fertilization

Zhao,

Wang,

Ren

et al. 2024

Recycling

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show abstract

“…This method primarily relies on hydroxides as the preferred agent, with the pH adjusted to produce insoluble hydroxide precipitates (Benalia et al, 2022). Lime and caustic soda are the preferred precipitants for the effective removal of heavy metals, including Cd, from aqueous solutions (Ekubatsion et al, 2021; Yang et al, 2022). Habte et al (2020) investigated the removal of Cd from synthetic wastewater and changes to the pH with the use of Ca(OH) 2 derived from eggshells.…”

Section: Introductionmentioning

confidence: 99%

Efficient cadmium removal from industrial wastewater generated from smelter using chemical precipitation and oxidation assistance

Lee,

Min

et al. 2024

Water Environment Research

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The effective treatment of cadmium (Cd) in smelting wastewater is of great industrial importance. This study investigates the efficient removal of Cd from real industrial smelting wastewater via chemical precipitation using a series of experiments. In particular, the effects of different precipitants, agitation conditions, and the addition of NaOCl on Cd removal and pH variation are investigated. CaO (3.75 g/L), NaOH (3.50 g/L), and Ca(OH)2 (3.75 g/L) are found to be effective in elevating the wastewater pH and achieving high Cd removal rates (>99.9%), while the use of NaOH as a precipitant maintains a high Cd removal rate even at low agitation intensities. The properties of the produced sludge and supernatant are also determined using moisture content, particle size, and sludge leaching analyses due to the importance of economic and environmental sustainability in filtration, dewatering, and waste disposal processes. In addition, the addition of 2% NaOCl is tested, revealing that it can improve the Cd removal efficiency of Ca(OH)2, thus potentially reducing processing costs and enhancing the environmental benefits. Overall, these findings offer valuable insights into the removal of Cd from smelting wastewater, with potential implications for both environmental sustainability and economic viability.Practitioner Points CaO, NaOH, and Ca(OH)2 effectively remove Cd (>99.9%) from smelting wastewater. The use of NaOH leads to high Cd removal rates even at low agitation speeds. Adding 2% NaOCl can reduce the Ca(OH)2 dose for more economical Cd removal.

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Hazenite and K-struvite production: phosphorus and potassium recovery from biomass power plant bottom ash using extraction and crystallization processes

Uysal,

Yıldızbaş

2024

J Mater Cycles Waste Manag

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Phosphorus recovery from cattle manure bottom ash by extraction and precipitation methods

Cited by 8 publications

References 57 publications

Sludge-Based Superparamagnetic Nano-Sorbent Functionalized by Lanthanum Silicate Nanorods for Phosphorus Adsorption and Fertilization

Sludge-Based Superparamagnetic Nano-Sorbent Functionalized by Lanthanum Silicate Nanorods for Phosphorus Adsorption and Fertilization

Efficient cadmium removal from industrial wastewater generated from smelter using chemical precipitation and oxidation assistance

Hazenite and K-struvite production: phosphorus and potassium recovery from biomass power plant bottom ash using extraction and crystallization processes

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