The effects of adding zero-valent iron nanoparticles (nZVI) on the physicochemical, biological and biochemical responses a semi-continuous anaerobic digestion sewage sludge have been assessed. Two sets consecutive experiments 103 116 days, respectively, were carried out in triplicate. nZVI magnetically retained reactors, effect punctual doses (from 0.27 to 4.33 g L?1) over time was studied. Amo...

In the present study, a magnetic nanocomposite based on biochar (BC) derived from sugarcane bagasse, nanoscale zerovalent iron (nZVI), and chitosan (CS) was fabricated to investigate its efficacy for removal of two widely used pharmaceutically active compounds (PhACs), namely aspirin (ASA) carbamazepine (CBZ). The synthesized (BC-CS@nZVI) characterized using XRD, FTIR, FESEM-EDX. Response Surfa...

This investigation compared the adsorption behavior of humic acid (HA) on cellulose, chitosan and nano zerovalent iron/chitosan (nZVI/chitosan). Results show that nZVI/chitosan is very effective in HA from aqueous media. The feasibility using as an adsorbent for simultaneous removal nitrate media was also studied. Structural analyses samples were identified by TEM, FT-IR, EDX, XRD N2 isotherms....

Recently, iron nanoparticles are increasingly being tested as adsorbents for various types of organic and inorganic pollutants. In this study, nanoparticles of zero-valent iron (NZVI) synthesized under atmospheric conditions were employed for the removal of Ba(2+) ions in a concentration range 10(-3) to 10(-6) M. Throughout the study, (133)Ba was used as a tracer to study the effects of time, c...

This study focused on arsenate removal by nano zero-valent iron (NZVI) in the gas-bubbled aqueous solution. It appears that solution acidified by H2SO4 is far more favorable than by CO2-bubbled acidification. In addition, as dissolved oxygen was stripped out of solution by N2 gas bubbling, the arsenate removal dropped significantly. To take advantages of common practice of carbonation and oxic ...

Abstract Conventional treatments for antibiotic residues in effluents are inefficient and do not lead to complete removal. Though effective feasible degradation of antibiotics using nanoparticles has been reported by several scientists, chemically synthesized have their own disadvantages. Thus, this study, nZVI was biosynthesized leaf extract Shorea robusta precursor FeSO4·7H2O photocatalytical...

Abstract This study investigated removal mechanisms, thermodynamics, and interferences of phosphorus adsorption onto nanoscale zero-valent iron (nZVI)/activated carbon composite. Activated was successfully used as support for nZVI particles to overcome shortcomings using include its tendency aggregate separation difficulties. A comprehensive characterization done the composite particles, which ...

Diffraction patterns of polyacrylic acid (PAA) encapsulated-(Fe)-modified ZnAl hydrotalcite (ZnAlH) showed the integration Fe in H lattice, resulting a hybrid nanocomposite (Fe-PAA-ZnAlH), which was mainly verified with characteristic shift 59–63° (2θ) region ZnAlH (110) reflection plane. The rise unit cell parameters (c and ) as % incremented, denoted incorporation red. Nonetheless, changes im...