Trace organic compounds (TrOCs), mostly found in secondary effluents, have a potential impact on the environment, affecting surface water, groundwater, and especially aquatic ecosystems. The present study focuses on oxidation of five selected TrOCs in column experiments, by simulating Soil Aquifer Treatment (SAT) integrated with Fenton-like reaction, using Granular Ferric Hydroxide (GFH) as a c...

I t has been surmised that the apoferritin molecule has a hollow center which communicates with the outer surface through some sort of channels or slots (1-2). This inference is based upon the following findings: 1. As determined by means of electron microscopy, the ferric hydroxide (FeOOH) micelles of ferritin molecules are located within spheroids of apoferritin (1) ; 2. In reducing media, su...

Synthesized [email protected] nanoparticles (NPs) were fully characterized by spectroscopic techniques and (scanning) transmission electron microscopy to resolve the presence of a Fe(OH)2-like phase. The different phases detected in core–shell nanostructure these NPs corroborated Mössbauer X-ray photoelectron spectroscopies. Metallic iron (Fe0), ferrous (FeII) hydroxide, magnetite (FeIII2FeIIO4...

Five moderately thermophilic iron-oxidizing bacteria, including representative strains of the three classified species (Sulfobacillus thermosulfidooxidans, Sulfobacillus acidophilus, and Acidimicrobium ferrooxidans), were shown to be capable of reducing ferric iron to ferrous iron when they were grown under oxygen limitation conditions. Iron reduction was most readily observed when the isolates...

The occurrence of arsenic in water is a global problem for public health. Several removal technologies have been developed from water, and adsorption onto iron oxy-hydroxides the most widely used technique. Granular ferric hydroxide (GFH) has mainly As(V) removal, but it disadvantage that can create with residual concentration water. Moreover, graphene oxide (GO), which contains large amount re...

A theoretical and experimental study has been carried out on flow, dissolution, and precipitation in porous media. Flow experiments were performed on linear carbonate cores using acidic ferric chloride solutions. Dissolution of the carbonate by the acid causes an increase in the solution pH, thereby precipitating ferric hydroxide. This precipitate plugs up the pore throats in the medium and inc...

-Fe 57 Mfssbauer spectroscopy has been used to determine the nature of iron-containing minerals in Lower Greensand samples from an experimental lysimeter at Uffington, Oxfordshire, both before and after a three-year irrigation with a synthetic heavy metal leachate. Analysis of the spectra measured at 300 ~ 77 ~ and 4.2~ and at 4.2~ in an applied field of 45 kOe shows that iron is present in the...

are recorded at 3-monthly intervals. Females had a higher Hb than males when considered as an overall trend throughout the period. There was no effect of social class or weight gain from birth in either sex. Birthweight was significantly related to Hb at 3 months in males only and at no other age. There was no relation between illness and Hb. Compared with earlier series in England, the level o...

The simple spectrophotometric method for the determination of esters has been developed. The procedure is based on the quantitative determination of ferric hydroxamate generated from the reaction of esters, hydroxylamine hydrochloride in basic solution at 120 °C, and ferric chloride. The formed complex was monitored through absorbance at 517 nm. The parameters affecting the absorbance value wer...