A magnetic γ-FeO@PANI@TiO core-shell nanocomposite for arsenic removal a coupled visible-light-induced photocatalytic oxidation-adsorption process.

Arsenic polluted groundwater impairs human health and poses severe threats to drinking water supplies and ecosystems. Hence, an efficient method of simultaneous oxidation of As(iii) to As(v), and removal of As(v) from water has triggered increasing attention. In this study, a magnetic γ-FeO core-shell heterojunction nanocomposite was synthesized by means of hydrothermal crystallization of TiO on the surface of the magnetic core-shell loaded with polyaniline (γ-FeO@PANI@TiO).

Peracetic acid for conditioning of municipal wastewater sludge: Hygienization, odor control, and fertilizing properties.

Peracetic acid (PAA) is an environmentally friendly disinfectant and oxidizer used in several water and wastewater treatment applications. In the present study, PAA was utilized for the conditioning of municipal wastewater sludge before thickening and dewatering. It was shown that PAA can effectively prevent odor formation (i.

High efficiency removal of methylene blue using SDS surface-modified ZnFeO nanoparticles.

Recent studies have shown that hazardous organic dye substances can be removed from aqueous solutions by spinel ferrite nanomaterials. We found that Sodium Dodecyl Sulfonate (SDS) surface-modified mesoporous ZnFeO nanoparticles (10-50nm) have a remarkably high maximum adsorptive capacity (∼699.30mg/g) for aqueous Methylene Blue (MB) removal at T of 288K and pH of 12.

Isomerism of Trimeric Aluminum Complexes in Aqueous Environments: Exploration via DFT-Based Metadynamics Simulation.

The chemistry of aluminum or oxo-aluminum in water is still relatively unknown, although it is the basis for many chemical and industrial processes, including flocculation in water treatment plants. Trimeric species have a predominant role in the formation of the Keggin cations, which are the basic building blocks of aluminum-based chemicals. Despite this, details of the structural evolution of these small solvated clusters and how this is related to the processes leading to the formation of larger aggregates are still an open issue.