Novel reusable renewable resource-based iron oxides nanocomposites for removal and recovery of phosphate from contaminated waters

Nakarmi, Amita; Kim, J.; Toland, Alan; Viswanathan, Tito

doi:10.1007/s13762-018-2058-3

Cited by 7 publications

(2 citation statements)

References 25 publications

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“…According to the results of this study, the phosphate adsorption capacity of raw diatomite and hydrous iron oxide modified diatomite was observed to increase from 0.6 to 4.89 and 14.71 to 25.02 mg/g, respectively (Wang et al 2016). A similar study was conducted by Nakarmi et al (2018) using the iron oxide nanocomposites (IO-nCs) which were synthesized from modified wood chips. In this study, the phosphate removal capacity at low and high phosphate concentrations was examined.…”

Section: Iron Oxides Adsorbentsmentioning

confidence: 54%

“…In this study, the phosphate removal capacity at low and high phosphate concentrations was examined. Accordingly, iron oxide nanocomposites achieved a phosphate removal capacity of 33.71 mg/g and 96.41% removal for 500 and 1 mg/L solution at 3 mg/L dosage (Nakarmi et al 2018). Moreover, Du et al (2017) used Fe-Mn oxide adsorbent (FMO) (Fe/Mn ratio 5:1) for phosphate removal and the results revealed a maximum adsorption capacity of 18.4 mg/g at 35°C and pH 7.0.…”

Section: Iron Oxides Adsorbentsmentioning

confidence: 96%

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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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Section: Iron Oxides Adsorbentsmentioning

confidence: 54%

Section: Iron Oxides Adsorbentsmentioning

confidence: 96%