The oxidation of organic compounds and color removal of a synthetic dyeing effluent when treated with a combination of Fenton’s Reagent and biological oxidation in a sequencing batch reactor was evaluated in this work. A central composite design approach was used to find the best conditions of temperature, hydrogen peroxide and ferrous ion concentrations that maximize color and dissolved organi...

bleaching process is an essential stage in the refining of vegetable oils and fats. in this process the colour and the primary and secondary oxidation products are removed by the treatment with the acid activated bleaching earth .the aim of this project is to understand the effect of bleaching on the physical characteristics and chemical constituents of neutralized canola and sunflower seed oil...

Ageing and stabilization polymers is a major part of materials science. Aging of polymers defined as a set of chemical and physical transformations, leads to the loss of their set the desired properties. The main role in these transformations belong to chemical processes of degradation and crosslinking of macromolecules. Processes decomposition and structuring polymer conjugates include radical...

Although there have been many studies of n-heptane ignition, few studies have provided detailed insights into the low-temperature chemistry of n-heptane—a primary reference fuel— through direct measurements of intermediate species formed during ignition. Such measurements provide understanding of reaction pathways that form toxic air pollutants, greenhouse gas emissions, and particulates such a...

This paper presents the results from an assessment of the application of a new molecular analytical procedure, CTMAH thermochemolysis, to study the chemical modi®cation of lignin by white-rot and brown-rot fungi. This technique di€ers from other molecular chemolysis procedures (e.g. TMAH thermochemolysis and CuO alkaline oxidation) as it enables one to determine the amount of hydroxylated aroma...

Increasing concerns over health and ecological impacts of contaminated sites are leading to the development of cost effective remediation techniques for reducing the mass, mobility and/or toxicity of contaminated soils and groundwater. Amongst these, in situ chemical oxidation techniques are evolving as an effective way of remediating contaminated soil. In situ chemical oxidation involves the i...

the effect of cinnamomum zeylanicum essential oil (czeo) at two concentrations (0.02% and 0.04% v/w) on chemical composition, ph, water activity (aw), lipid oxidation, color stability and sensory characteristics of lyoner-type sausage stored at 4 ˚c for 40 days was investigated. the moisture content of the control sample was higher (p < 0.05) than czeo incorporated samples, while fat, ash and p...

Using commercially activated carbon, we developed a simple and effective direct chemical oxidation route to prepare good biocompatible multicolor photoluminescent carbon dots.

In this study, an efficient and facile technique for preparing graphene oxide in suspension and powder forms was presented based on a modification on Hummers' method followed by an additional ultrasonic process. The method involved the provision of graphene oxide from graphite by reaction of potassium permanganate and sulfuric acid with stabilizing the medium complex. Furthermore, this study ev...

The products of the primary OH-initiated oxidation of toluene were investigated using the turbulent flow chemical ionization mass spectrometry technique at temperatures ranging from 228 to 298 K. A major dienedial-producing pathway was detected for the first time for toluene oxidation, and glyoxal and methylglyoxal were found to be minor primary oxidation products. The results suggest that seco...