Dolomite used in phosphate water treatment: Desorption processes, recovery, reuse and final disposition

Piol, María Natalia; Paricoto, María; Saralegui, Andrea Beatriz; Basack, Silvana; Vullo, Diana L.; Boeykens, Susana

doi:10.1016/j.jenvman.2019.02.085

Cited by 24 publications

(6 citation statements)

References 20 publications

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“…From a circular economy perspective, the recovery of both granules and phosphorus further needs to be considered because they impact the sustainability of the treatment process. Piol et al (2019) identified desorption as a promising technique since it (i) regenerates the adsorbent making it reusable for multiple adsorption/desorption cycles, and (ii) it isolates the adsorbate making it possible to recover. Different desorption reagents, such as inorganic and organic acids, chelating agents and alkaline solutions, have already been proposed in the literature (Dox et al, 2019;Luyckx et al, 2020;Zhao et al, 2010).…”

Section: Prospects For P-recoverymentioning

confidence: 99%

Adsorption of phosphate on iron-coated sand granules as a robust end-of-pipe purification strategy in the horticulture sector

et al. 2021

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Section: Prospects For P-recoverymentioning

confidence: 99%

Adsorption of phosphate on iron-coated sand granules as a robust end-of-pipe purification strategy in the horticulture sector

et al. 2021

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“…After adsorption, MZ with adsorbed phosphate was magnetically separated and subjected to desorption treatment. The effect of two desorption agents, NaOH and NaCl, and their combinations on the desorption were investigated [ 36 , 40 , 41 ], and the results are presented in Figure 5 . The desorption effect of NaCl was poor, with desorption rates between 6–8% regardless of the NaCl concentration.…”

Section: Resultsmentioning

confidence: 99%

“…The desorption effect of NaOH was considerably better, and the desorption rate increased from 78.33% to 98.61% with its concentration increased from 0.1 to 1 mol/L. However, NaOH was more expensive than NaCl and might cause severe corrosion to the reactor [ 41 ]. Thus, binary desorption agents consisting of 0.1, 0.5, and 1 mol/L NaCl and 0.1 mol/L NaOH were further explored for its performance.…”

Section: Resultsmentioning

confidence: 99%

High Purity Struvite Recovery from Hydrothermally-Treated Sludge Supernatant Using Magnetic Zirconia Adsorbent

Wang

Guan

Wang

et al. 2022

IJERPH

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Recovery of phosphorus from sludge will help to alleviate the phosphorus resource crisis. However, the release of phosphorus from sludge is accompanied by the leaching of large amounts of coexisting ions, i.e., Fe, Al, Ca, and organic matter, which decreases the purity of sludge-derived products. In this study, an adsorption-desorption process using magnetic zirconia (MZ) as the adsorbent is proposed to obtain a high purity recovery product. The process involves selective adsorption of phosphate from the hydrothermally treated sludge supernatant (HTSS) using MZ, followed by desorption and precipitation to obtain the final product: struvite. The results indicated that at a dosage of 15 g/L, more than 95% of phosphorus in the HTSS could be adsorbed by MZ. Coexisting ions (Ca2+, Mg2+, Fe3+, Al3+, SO42−, NO3−, Cl−, etc.) and organic matter (substances similar to fulvic and humic acid) in the HTSS had a limited inhibitory effect on phosphate adsorption. Using a binary desorption agent (0.1 mol/L NaOH + 1 mol/L NaCl), 90% of the adsorbed phosphorus could be desorbed. Though adsorption-desorption treatment, struvite purity of the precipitated product increased from 41.3% to 91.2%. Additionally, MZ showed good reusability, maintaining a >75% capacity after five cycles. X-ray photoelectron spectroscopy (XPS) indicated that MZ adsorbed phosphate mainly by inner-sphere complexation. This study provided a feasible approach for the recovery of phosphorus from sludge with high purity.

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“…For successful environmental management methods to address AMR, cooperation between industry, policymakers, and environmental authorities is required. 27, 28…”

Section: Predisposing Factors For the Development Of Amrmentioning

confidence: 99%

Rationalization of Antibiotic Prescription: Modulation of the Gut Microbiome and Possibilities of Minimizing the Risks for the Development of Antibiotic Resistance—A Narrative Review

Kumar,

Shukla,

Shinu

et al. 2023

Journal of Pharmacology and Pharmacotherapeutics

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Antimicrobial resistance (AMR) is a serious global health issue, and it is greatly influenced by the gut flora. The rationalization of antimicrobial doses in clinical studies is crucial for preventing AMR. This review analyzes how rationalization tactics affect AMR and gut microbiota in clinical studies. Studies that provided data on the use of antibiotics, AMR, or gastrointestinal microbiota were taken into account for the current review. The AMR rate was found to be low when healthy gut flora was maintained using various antibiotic rationalization techniques, such as limited use of antibiotics or targeted treatments. However, the effectiveness of these strategies differed based on the particular intervention, the research population, and the length of the course of therapy. The rationalization of antibiotic prescriptions in clinical research is one potential method for reducing the prevalence of AMR by maintaining the gut flora. Rationalization techniques may help lower AMR rates and foster the development of good intestinal flora. This review describes various antibiotic rationalization techniques and the importance of maintaining healthy microbial flora to minimize AMR-associated health issues.

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Dolomite used in phosphate water treatment: Desorption processes, recovery, reuse and final disposition

Cited by 24 publications

References 20 publications

Adsorption of phosphate on iron-coated sand granules as a robust end-of-pipe purification strategy in the horticulture sector

Adsorption of phosphate on iron-coated sand granules as a robust end-of-pipe purification strategy in the horticulture sector

High Purity Struvite Recovery from Hydrothermally-Treated Sludge Supernatant Using Magnetic Zirconia Adsorbent

Rationalization of Antibiotic Prescription: Modulation of the Gut Microbiome and Possibilities of Minimizing the Risks for the Development of Antibiotic Resistance—A Narrative Review

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