+441518081136Fenton reaction in porous media
Joint Event on International Conference on Organic and Inorganic Chemistry & 8th World Congress on Green Chemistry and Technology
February 18-19, 2019 | Paris, France
Ambika S
National Institute of Technology, India
Posters & Accepted Abstracts : J Ind Environ Chem
Abstract:
Emplacement of meso zero-valent iron particles (mZVI) in porous media to degrade organic pollutants (Phenol as model pollutant) in continuous column studies is first of its kind. Columns with different configurations varying in ZVI distribution and location of H2O2were investigated for factors influencing sustainable phenol removal. The performance of columns were in the ascending order of C > A > B > D where columns A and B had full-length ZVI distribution, C and D had half-length ZVI distribution, with H2O2 injection at initial conditions in A and C and at intermittent points in B and D. Distribution of mZVI particles in column C contributed 61-84% more interaction between Fe2+ ions and H2O2, promoted good radical generation and continuous corrosion, invigorated effective Fe2+-Fe3+ cycling, retained active iron surface area and circumvented precipitation and secondary sludge production. The breakthrough curves showed that mZVI particles extended the active corrosion stage by 5 to 8 times and resulted in 3 to 7 times increment in mg phenol removed/mg mZVI along with 80% to 99.8% utilization of mZVI. Additional sand-only columns proved that Fenton’s oxidation in in situ porous media can be improvised by 14% to 34% without incumbent addition of ZVI particles.
Biography:
E-mail:
ambika@nitw.ac.inPDF HTML