Investigation of phosphate adsorption from an aqueous solution using spent fluid catalytic cracking catalyst containing lanthanum

Li, Zhen; Qiu, Zhaofu; Yang, Ji; Ma, Benteng; Qin, Chuanhui

doi:10.1007/s11783-018-1082-3

Cited by 14 publications

(4 citation statements)

References 37 publications

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“…the spontaneity of the adsorption process [18]. The value obtained for ∆G 0 (< − 20 kJ/mol) indicates the importance of electrostatic interaction followed by surface complexation on phosphate adsorption onto pillared clay [50].…”

Section: Adsorption Kinetics Isotherm and Thermodynamic Studiesmentioning

confidence: 89%

“…So, orthophosphate is the only prominent form that could be utilized by prokaryotic and eukaryotic organisms [15,16]. For the treatment of wastewater, various techniques are reported by researchers, such as adsorption, oxidation, flocculation-coagulation, membrane filtration and biological treatment [17,18]. Among them, adsorption is an effective technique for the removal of pollutants because of low cost, minimal sludge production, recovery of adsorbent and high efficiency [1,2,19].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

et al. 2020

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In this work, the water quality status of the surface water that lies around the Karamana River basin, Trivandrum urban area, was studied on the basis of the water quality index (WQI) method. The eutrophic condition of the basin is revealed, and proper mitigation strategy was adopted for the removal of phosphate species using pillared clay materials. Proper sampling was carried out in the urban rivers, and various physico-chemical parameters for evaluating the quality of water were analysed. WQI values obtained for these riverine systems are in the range 317.7-3005.1, indicating that the water is not suitable without treatment for any domestic activities. Also, phosphate ions in the range 1.98-20.52 mg/L reflect the dominance of phosphate species in surface water. A proper mitigation strategy was adopted for the selective removal of phosphate ions using adsorption technique by using zirconium-pillared bentonite clay (ZPBC) prepared by the stirring-ageing technique. The batch adsorption experiment performed on simulated phosphate solution shows that for 2.0 g/L of ZPBC a maximum phosphate adsorption capacity of 35.71 mg/g was achieved in 30 min at pH 3.0. The data obtained were used to study models in kinetics and isotherm. The reusability of spent ZPBC for five continuous cycles without major loss in adsorption capacity using 0.025 M Na 2 CO 3 extractant was proved from the desorption study. A single-stage reactor was also designed from the isotherm data and proved to be effective. The applicability of the adsorbent towards phosphate anions was successfully checked in the laboratory using surface water collected and found that the complete removal of phosphate was achieved using 6.0, 8.0 and 10.0 g/L of ZPBC.Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s4245 2-020-2571-0) contains supplementary material, which is available to authorized users.

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Section: Adsorption Kinetics Isotherm and Thermodynamic Studiesmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

et al. 2020

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“…Therefore, extensive research has been conducted on neutralising or removing soluble phosphate and fluoride compounds from the PG. The principal methods are the following: washing of PG with water; neutralisation of impurities in citric, nitric, or sulphuric acid solutions with subsequent washing with water [26][27][28]; application of various neutralising, mineralising and crystallisation-regulating additives before dehydration of PG [29,30]; thermal treatment and neutralisation in lime suspension [31,32].…”

Section: Pg In Building Materialsmentioning

confidence: 99%

By-product Phosphogypsum Valorisation Possibilities in the Context of Circular Economy of Building Materials

Fornés,

Vaiciukyniene,

Nizeviciene

et al. 2023

Springer Tracts in Civil Engineering

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Phosphogypsum (PG) is the most significant solid waste in the world. However, only 15% of it is recycled, and the rest is stored in useless and environmentally-damaging stockpiles, which are continually growing. Therefore circular economy of PG through its utilisation in useful applications, is relevant and critical from an ecological perspective. In this context, its utilisation in building materials is among the most promising and attractive recycling possibilities, since PG typically exhibits excellent binding properties. However the applicability of PG is often restrained by its radiological risks and economic non-competitivity in comparison to traditional building materials, such as natural gypsum. In some cases, these obstacles refer to cultural prejudices and misinformation rather than real issues. Therefore, through a comprehensive literature review, this article considers the real potential of PG in building materials, providing useful information to interested stakeholders.

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“…Leaching should be considered at two scenarios: 1) the release happens during service to degrade quality of the runoff after contact with these adsorbents; and 2) the leaching occurs after the spent adsorbents are collected and then disposed in landfills. Only the adsorbents with a minimal leaching potential can be considered for practical use (Li et al, 2018). Although long-term pilot or field column studies can accurately determine the leaching potential of an adsorbent, the approach is seldom used due to an unfeasibly long experiment duration.…”

Section: Chemical Leachingmentioning

confidence: 99%

Low-cost adsorbents for urban stormwater pollution control

Deng

2020

Front. Environ. Sci. Eng.

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Stormwater represents a major non-point pollution source at an urban environment. To improve the treatment efficacy of stormwater infrastructure, low-cost adsorbents have increasingly gained attention over the past decades. This article aims to briefly discuss several key aspects and principles for utilization of low-cost adsorbents for urban stormwater treatment. To determine whether a low-cost adsorbent is suitable for stormwater treatment, two aspects should be carefully assessed, including: 1) its adsorption mechanisms and behaviors that can influence the binding strength, adsorption kinetics, and treatment capacity; and 2) unwanted chemical leaching patterns that can affect the extent of water quality degradation. Furthermore, the application mode of an adsorbent in the system design influences the utilization efficiency. Adsorbents, after dosed to soil media in infrastructure, would eventually become ineffective after oversaturation. In contrast, standalone filters or innovative composite adsorbents (e.g., adsorbent-coated mulch chips) can enable a long-lasting adsorption due to periodic replacement with fresh adsorbents. The aforementioned principles play a key role in the success of urban stormwater treatment with low-cost adsorbents.

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Investigation of phosphate adsorption from an aqueous solution using spent fluid catalytic cracking catalyst containing lanthanum

Cited by 14 publications

References 37 publications

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

Assessment of urban river water quality and developing strategies for phosphate removal from water and wastewaters: Integrated monitoring and mitigation studies

By-product Phosphogypsum Valorisation Possibilities in the Context of Circular Economy of Building Materials

Low-cost adsorbents for urban stormwater pollution control

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