Chemical interferences when using high gradient magnetic separation for phosphate removal: Consequences for lake restoration

Vicente, Inmaculada de; Merino-Martos, A.; Guerrero, Francisco; Amores, Victoria; Vicente, J. De

doi:10.1016/j.jhazmat.2011.05.090

Cited by 38 publications

(22 citation statements)

References 35 publications

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“…There is a wide sampling range of non-polymeric adsorbents. Hydrated ferric oxides (Pan et al, 2009, You et al, 2015, You et al, 2016, magnetic-based adsorbents (Janos et al, 2013, Lai et al, 2016, de Vicente et al, 2011, layered double hydroxides (Das et al, 2006, Cheng et al, 2009, synthesized minerals (Peleka andDeliyanni, 2009, Chitrakar et al, 2006), hydroxides (Guan et al, 2006), modified clays (Copetti et al, 2016, Reitzel et al, 2013, modified biochars (Jung andAhn, 2016, Li et al, 2016), oxides (Xie et al, 2015, Park et al, 2017, immobilized transition metals (Mahaninia and Wilson, 2015, Ogata et al, 2011, Liu and Zhang, 2015, and nanoparticles (Zheng et al, 2016, Chouyyok et al, 2010, You et al, 2016, Almeelbi and Bezbaruah, 2012, Lai et al, 2016 have been extensively studied for P removal. Many of these materials have shown high P selectivity, high P sorption capacity, environmentally benign, stable under a wide pH range, low cost, fast removal rate even at low P concentrations, or P recovery capabilities.…”

Section: Non-polymeric Adsorbentsmentioning

confidence: 99%

“…cationized wood residues (Unnithan et al, 2002, iron oxide tailings (Zeng et al, 2004), alum and ferric sludges (Babatunde andZhao, 2010, Song et al, 2011), alkaline fly ash (Cheung and Venkitachalam, 2000), egg-shell waste (Yeddou Mezenner and Bensmaili, 2009), red mud (Huang et al, 2008), blast furnace slag (Oguz, 2004), and waste lime (Siobhan Dunets and Zheng, 2014, Ahn and Speece, 2010)), ion and ligand exchangers (Blaney et al, 2007, Sarkar et al, 2011, Sengupta and Pandit, 2011, Choi et al, 2012, membranes (Park et al, 2017, Luo et al, 2016, Dolar et al, 2011, and adsorbents (i.e. hydrated ferric oxides (Pan et al, 2009, You et al, 2015, You et al, 2016, magnetic-based adsorbents (Janos et al, 2013, Lai et al, 2016, de Vicente et al, 2011, layered double hydroxides (Das et al, 2006, Cheng et al, 2009, synthesized minerals (Peleka andDeliyanni, 2009, Chitrakar et al, 2006), modified clays (Copetti et al, 2016, Reitzel et al, 2013, modified biochars (Jung andAhn, 2016, Li et al, 2016), immobilized transition metals (Mahaninia and Wilson, 2015, Ogata et al, 2011, Liu and Zhang, 2015), polymers (Dimitri et al, 2005, Mahaninia and Wilson, 2016, Hammud et al, 2015, and nanoparticles (Zheng et al, 2016, Chouyyok et al, 2010, You et al, 2016…”

Section: )mentioning

confidence: 99%

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Assessment of molecularly imprinted polymers as phosphate sorbents

2019

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Wastewater effluents and agricultural runoff are major sources of phosphorus overloading in surface waters. Phosphorus overloading ignites eutrophication, which devastates aquatic ecosystems. On the other hand, phosphorus, which is currently produced from phosphate rock, is a critical component of fertilizer mixes. However, the world is predicted to face a shortage of phosphate supply beyond 2033 due to unsustainable mining. This research aims to develop a polymeric sorbent that recovers low-concentration phosphorus for eutrophication prevention and fertilizer reuse. Available polymer-based products have underwhelmed expectations by having poor selectivity or lacking appropriate biodegradation rates. This research identified molecularly imprinted polymers (MIPs) as possible sorbents for overcoming the deficiencies of reported technologies. Screening of several MIPs resulted in one potentially feasible MIP for phosphate sorption. Further studies showed a sorption capacity of ~28 mg PO4 3-P/g and partial phosphate-selectivity. Potential phosphate removal mechanisms were identified, providing foresight into MIPs' viability as phosphorus sorbents.

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Section: Non-polymeric Adsorbentsmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Assessment of molecularly imprinted polymers as phosphate sorbents

2019

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“…This separation technique has been reported in oil-bearing effluent, mine effluent, and some new complex processes, for example in magnetic chemistry processes [112]. SMF has also been applied for the adsorption of organic dyes such as acridine orange [113] congo red [114], for removal fluoride and phosphate [115], eutrophication in lake restoration [116] and to accelerate the coagulation of sewage in bio-system (117]. The treated effluent has high efficiency in terms of separation and can easily allow removal of an adsorbent, which can cause any negative effect at the downstream processing phase.…”

Section: Effects Of Static Magnetic Field On Biological Wastewater Trmentioning

confidence: 99%

Can Induced Magnetic Field Enhance Bioprocesses? - Review

Affam¹,

Chung²,

Swee³

2018

MATEC Web Conf.

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This review presents a compilation of works with particular interest in the application of static magnetic field (SMF) to biological systems, wastewater treatment and few available reports on microbial granulation technology. It also highlights the effects of SMF on biological systems and wastewater treatment process. With an increasing need for environmentally conscious solutions to water purification and disinfection, wastewater treatment, bioremediation and other cheap alternative means, the application of SMF in biological water and wastewater treatment without increase in chemicals required may become an attractive option. Application of SMF has been reported to be successful in a number of fields including treatment of wastewater. However, there are sparse reports on SMF application in the formation and development of microbial granule and production of extracellular polymeric substances (EPS). Achieving a short start-up time in a bioreactor towards the development of microbial granule is of paramount importance in granulation technology. Ascertaining how effective varying strength of SMF and other input variables may enhance the microbial granule with respect to its physical, chemical and biological characteristics requires further research.

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“…However, natural lake waters are complex matrices in which the P removal efficiency is finally controlled by the interactions between coexisting substances/ions, the adsorbate and the adsorbent. Up to now, the statistical approaches applied in experiments with lake water are correlation analysis (Reitzel et al, 2013), simple linear regression (de Vicente et al, 2011) and principal component analysis (de Vicente et al, 2008). Unfortunately, correlation analysis and simple linear regression do not allow to distinguish if each factor by itself is interfering on P removal or if it is a consequence of the high correlation with other factors.…”

Section: Introductionmentioning

confidence: 99%

Determining major factors controlling phosphorus removal by promising adsorbents used for lake restoration: A linear mixed model approach

et al. 2018

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Phosphorus (P) removal from lake/drainage waters by novel adsorbents may be affected by competitive substances naturally present in the aqueous media. Up to date, the effect of interfering substances has been studied basically on simple matrices (single-factor effects) or by applying basic statistical approaches when using natural lake water. In this study, we determined major factors controlling P removal efficiency in 20 aquatic ecosystems in the southeast Spain by using linear mixed models (LMMs). Two non-magnetic -CFH-12 and Phoslock- and two magnetic materials -hydrous lanthanum oxide loaded silica-coated magnetite (Fe-Si-La) and commercial zero-valent iron particles (FeHQ)- were tested to remove P at two adsorbent dosages. Results showed that the type of adsorbent, the adsorbent dosage and color of water (indicative of humic substances) are major factors controlling P removal efficiency. Differences in physico-chemical properties (i.e. surface charge or specific surface), composition and structure explain differences in maximum P adsorption capacity and performance of the adsorbents when competitive ions are present. The highest P removal efficiency, independently on whether the adsorbent dosage was low or high, were 85-100% for Phoslock and CFH-12, 70-100% for Fe-Si-La and 0-15% for FeHQ. The low dosage of FeHQ, compared to previous studies, explained its low P removal efficiency. Although non-magnetic materials were the most efficient, magnetic adsorbents (especially Fe-Si-La) could be proposed for P removal as they can be recovered along with P and be reused, potentially making them more profitable in a long-term period.

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Chemical interferences when using high gradient magnetic separation for phosphate removal: Consequences for lake restoration

Cited by 38 publications

References 35 publications

Assessment of molecularly imprinted polymers as phosphate sorbents

Assessment of molecularly imprinted polymers as phosphate sorbents

Can Induced Magnetic Field Enhance Bioprocesses? - Review

Determining major factors controlling phosphorus removal by promising adsorbents used for lake restoration: A linear mixed model approach

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