Iron Oxide Magnetic Composite Adsorbents for Heavy Metal Pollutant Removal

The project presents the use of laser and magnetic nanoparticles like iron oxide (Fe3O4) in heavy metal detection in water. In this method, metal Nanomagnets particles result in a magnetic reagent for the rapid removal of heavy metals from solutions or water of magnitude to concentration 0.25wt%. This can be done by measuring the magneto-optical parameters (as a hysteric loop) of the solution as an indication of the change in concentrations of the detected heavy metal. The samples used in this work using the Tigris River water that supported from al-Wathba lab. water projects of the Baghdad water directorate at Baghdad-Iraq. Putting here a study of the effect of graphene and metal oxide such as cobalt and nickel which doped the ferrofluid (iron oxide) /polymer/water (Tigris river water) composite on the magneto-optical properties. The graphene adding had the best result in low threshold magnetic field which was 67mGauss, give the motive to use it in fast sensing and detecting of heavy metal in Tigris river water.

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Preparation of iron oxide nanoparticles doped with divalent metal: Application for heavy metal removal from waste water

10.1063/1.5117040 ◽

2019 ◽

Author(s):

M. Mishal ◽

N. H. Alonizan ◽

M. Hjiri ◽

M. S. Aida

Keyword(s):

Waste Water ◽

Heavy Metal ◽

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Metal Removal ◽

Heavy Metal Removal ◽

Divalent Metal ◽

Oxide Nanoparticles

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Pollutant removal efficiency of alternative filtration media in stormwater treatment

Water Science & Technology ◽

10.2166/wst.2006.617 ◽

2006 ◽

Vol 54 (6-7) ◽

pp. 299-305 ◽

Cited By ~ 40

Author(s):

N. Seelsaen ◽

R. McLaughlan ◽

S. Moore ◽

J.E. Ball ◽

R.M. Stuetz

Keyword(s):

Heavy Metal ◽

Metal Ions ◽

Metal Removal ◽

Heavy Metal Removal ◽

Wood Ash ◽

Pollutant Removal ◽

Added Value ◽

Metal Contaminants ◽

High Concentration ◽

Recycled Glass

Sorption experiments were used to assess the ability of various materials (sand, compost, packing wood, ash, zeolite, recycled glass and Enviro-media) to remove heavy metal contaminants typically found in stormwater. Compost was found to have the best physicochemical properties for sorption of metal ions (Cu, Zn and Pb) compared with sand, packing wood, ash, zeolite and Enviro-media. The compost sorption of these metal ions conformed to the linear form of the Langmuir adsorption equation with the Langmuir constants (qm) for Zn(II) being 11.2 mg/g at pH 5. However, compost was also found to leach a high concentration of dissolved organic carbon (DOC, 4.31 mg/g), compared with the other tested materials. Various combinations of sand, compost and other materials were observed to have excellent heavy metal removal (75–96% of Zn and 90–93% of Cu), with minimal DOC leaching (0.0013–2.43 mg/g). The sorption efficiency of the different Enviro-media mixes showed that a combination of traditional (sand) and alternative materials can be used as an effective medium for the treatment of dissolved metal contaminants commonly found in stormwater. The application of using recycled organic materials and other waste materials (such as recycled glass) also provides added value to the products life cycle.

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