Removal of micropollutants by fresh and colonized magnetic powdered activated carbon

Lompe, Kim Maren; Duy, Sung Vo; Peldszus, Sigrid; Sauvé, Sébastien; Barbeau, Benoît

doi:10.1016/j.jhazmat.2018.07.072

Cited by 42 publications

(47 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the study performed by Lompe et al [89] the adsorption capacity for nine micropollutants (Diclofenac, Fluoxetine, Estradiol, Norethindrone, Atrazine, Carbamazepine, Deethylatrazine, Sulfamethoxazole and Caffeine) on fresh and aged magnetic powdered activated carbon (MPAC) was investigated. They demonstrated that MPAC produced via co-precipitation can be customized with respect to its magnetic properties without compromising its adsorption capacity beyond the reduction expected for lower powdered activated carbon (PAC) contents.…”

Section: Carbon-based Materialsmentioning

confidence: 99%

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

et al. 2020

View full text Add to dashboard Cite

Water quality has become one of the most critical issue of concern worldwide. The main challenge of the scientific community is to develop innovative and sustainable water treatment technologies with high efficiencies and low production costs. In recent years, the use of nanomaterials with magnetic properties used as adsorbents in the water decontamination process has received considerable attention since they can be easily separated and reused. This review focuses on the state-of-art of magnetic core–shell nanoparticles and nanocomposites developed for the adsorption of organic pollutants from water. Special attention is paid to magnetic nanoadsorbents based on silica, clay composites, carbonaceous materials, polymers and wastes. Furthermore, we compare different synthesis approaches and adsorption performance of every nanomaterials. The data gathered in this review will provide information for the further development of new efficient water treatment technologies.

show abstract

Section: Carbon-based Materialsmentioning

confidence: 99%

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The actual change in adsorption capacity (after correcting for IONP mass) seems to depend on the MPAC synthesis method and the PAC type or source used; IONP can be incorporated either on the surface or in the pores of MPAC. At higher IONP mass fractions, the available surface for micropollutant removal can be compromised, leading to a reduced adsorption capacity and potentially also slower kinetics (Lompe et al 2018). Another potential cause of fewer adsorption sites could be the presence of noncrystalline, amorphous iron phases that result from insufficiently controlled precipitation conditions.…”

Section: Adsorption Propertiesmentioning

confidence: 99%

“…Natural organic matter (NOM) will compete for adsorption sites on the MPAC, but our research found that IONPs do not adsorb significant quantities of NOM, and what does adsorb is the small molecular size fraction that also preferably adsorbs to PAC (Lompe et al 2017). As with normal PAC, the adsorption capacity for micropollutants on MPAC was less in natural water compared with tap water (Lompe et al 2018).…”

Section: Adsorption Propertiesmentioning

confidence: 99%

Magnetic Powdered Activated Carbon: A Promising Adsorbent for Water Treatment?

Lompe¹,

Ménard

Barbeau

2020

Journal AWWA

Self Cite

View full text Add to dashboard Cite

While researchers have been proposing magnetic powdered activated carbon (MPAC) for more than a decade, these materials are not yet commercially available in North America (though they are in Japan). MPAC combines two important characteristics: efficient separation from water using a magnetic field and good adsorption properties for organic micropollutants. The slightly higher costs of MPAC can be offset by its separability and reusability. Easy recirculation of PAC would allow working at high enough PAC age to colonize it with heterotrophic and nitrifying bacteria. Magnetic separation of MPAC requires the use of highgradient magnetic separators, which might limit the adsorbent's application to low-flow systems.

show abstract

“…In fact, recent work demonstrated the successful combination of carbons with magnetic nanoparticles to generate a particle system which acts as magnetically recoverable adsorbent. Examples are magnetic carbon nanotubes, magnetic graphene, as well as magnetic activated carbon . Typically the carbon material is synthesized prior to the functionalization with magnetic particles.…”

Section: Introductionmentioning

confidence: 99%

“…Typically the carbon material is synthesized prior to the functionalization with magnetic particles. As magnetic material, magnetite (Fe 3 O 4 ) is predominantly used, which is either mixed with the carbon material in the form of nanoparticles, or is synthesized in situ from iron salts in the presence of the carbon material …”

Section: Introductionmentioning

confidence: 99%

Magnetic Carbon Composite Particles for Dye Adsorption from Water and their Electrochemical Regeneration

Schneider

Ballweg

Groß

et al. 2019

Part & Part Syst Charact

View full text Add to dashboard Cite

Herein, the development of a novel composite particle system prepared from superparamagnetic Fe3O4@SiO2 microparticles as core and coated with a carbon shell is presented. The coating with carbon is done by pyrolyzing furan resin, which was previously deposited on the particle surface by poly‐merization of furfuryl alcohol. The novel composite material thus combines magnetic and sorptive properties. Upon pyrolysis the magnetic material is converted from magnetite to α‐iron and fayalite, changing its behavior from superparamagnetic to ferromagnetic with nearly zero remanence. The magnetic properties can be utilized to magnetically collect the particles dispersed in fluids, whereas the sorptive properties of the carbon shell can be used to remove organic contaminants from these fluids. The adsorption behavior of the composite particles and a potential electrochemical regeneration route are investigated, using the model dye methylene blue.

show abstract

Removal of micropollutants by fresh and colonized magnetic powdered activated carbon

Cited by 42 publications

References 23 publications

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

Nanomaterials with Tailored Magnetic Properties as Adsorbents of Organic Pollutants from Wastewaters

Magnetic Powdered Activated Carbon: A Promising Adsorbent for Water Treatment?

Magnetic Carbon Composite Particles for Dye Adsorption from Water and their Electrochemical Regeneration

Contact Info

Product

Resources

About