© MagnoSorb 2021
Advanced nanocomposite adsorbents for the removal of high-valent pollutants from water

Outline

MagnoSorb deals with a sophisticated way to successfully incorporate nanotechnology in drinking water treatment and specifically for the removal of heavy metals met as high-valent ions such as chromium, selenium and molybdenum. In particular, MagnoSorb attempts to introduce a novel class of adsorbents engineered in the nanoscale but realized in kilogram-scale production rates consisting of spherical core-shell nanoparticles with a magnetically-responding phase in the inner part covered by a thin layer of the adsorption-active phase.

Motivation

An obvious advantage of nanoparticles in water treatment is their small size and consequently their elevated specific surface area which provides high reactivity, uptake capacity and, therefore, lower quantities of used adsorbents and solid wastes the challenge for MagnoSorb is to introduce a competitive solution for the serious problem of drinking water pollution with high-valent heavy metals such as chromium, selenium and molybdenum, by engineering multi-phase nanoparticles with higher efficiency than existing adsorbents but also with much lower cost as defined by the value of building phases, the application scheme and a feasible recycling plan.

Synthesis of core-shell

nanocomposite

Preparation of core-shell architecture in three steps: (i) preparation of spherical Fe 3 O 4 nanoparticles, (ii) heterogeneous precipitation of Sn 6 O 4 (OH) 4 on the magnetic seeds and (iii) modification by ion- exchange with electrolytes.

Design of water treatment

setup

A contact reactor with a high enough retention time to allow adequate contact between the polluted water and the nanoparticles, and a magnetic separator installed in the outflow tube of the contact reactor.

Environmental impact and

regeneration plan

Effect of particle size, shape and composition will be studied upon exposure to aquatic organisms. Leaching rate of saturated nanoadsorbents will be tested for various environments. Development of a regeneration method
The research project was supported by the Hellenic Foundation for Research and Innovation (H.F.R.I.) under the “2nd Call for H.F.R.I. Research Projects to support Post-Doctoral Researchers” (Project Number: 00046).
© MagnoSorb 2021

Outline

MagnoSorb deals with a sophisticated way to successfully incorporate nanotechnology in drinking water treatment and specifically for the removal of heavy metals met as high-valent ions such as chromium, selenium and molybdenum. In particular, MagnoSorb attempts to introduce a novel class of adsorbents engineered in the nanoscale but realized in kilogram-scale production rates consisting of spherical core-shell nanoparticles with a magnetically-responding phase in the inner part covered by a thin layer of the adsorption-active phase.

Motivation

An obvious advantage of nanoparticles in water treatment is their small size and consequently their elevated specific surface area which provides high reactivity, uptake capacity and, therefore, lower quantities of used adsorbents and solid wastes the challenge for MagnoSorb is to introduce a competitive solution for the serious problem of drinking water pollution with high-valent heavy metals such as chromium, selenium and molybdenum, by engineering multi-phase nanoparticles with higher efficiency than existing adsorbents but also with much lower cost as defined by the value of building phases, the application scheme and a feasible recycling plan.

Synthesis of core-shell nanocomposite

Preparation of core-shell architecture in three steps: (i) preparation of spherical Fe 3 O 4 nanoparticles, (ii) heterogeneous precipitation of Sn 6 O 4 (OH) 4 on the magnetic seeds and (iii) modification by ion-exchange with electrolytes.

Design of water treatment setup

A contact reactor with a high enough retention time to allow adequate contact between the polluted water and the nanoparticles, and a magnetic separator installed in the outflow tube of the contact reactor.

Environmental impact and regeneration

plan

Effect of particle size, shape and composition will be studied upon exposure to aquatic organisms. Leaching rate of saturated nanoadsorbents will be tested for various environments. Development of a regeneration method
Advanced nanocomposite adsorbents for the removal of high-valent pollutants from water
The research project was supported by the Hellenic Foundation for Research and Innovation (H.F.R.I.) under the “2nd Call for H.F.R.I. Research Projects to support Post-Doctoral Researchers” (Project Number: 00046).