نتایج جستجو برای: fenton like reaction
تعداد نتایج: 1043566 فیلتر نتایج به سال:
Chemical synthetic pharmaceutical wastewater has characteristics of high concentration, toxicity and poor biodegradability, so it is difficult to directly biodegrade. We used acid modified attapulgite (ATP) supported Fe-Mn-Cu polymetallic oxide as catalyst for multi-phase Fenton-like ultraviolet photocatalytic oxidation (photo-Fenton) treatment with actual chemical the object. The results showe...
Iron bound to certain chelators is known to promote the conversion of superoxide radicals (O2-) to hydroxyl radicals (HO.) by the superoxide-driven Fenton reaction. The production of HO. by various iron chelates was studied using the reaction of dimethyl sulfoxide and HO. to produce methane sulphinic acid. Methane sulphinic acid was quantified by use of a simple colorimetric assay and used to d...
BACKGROUND Fenton reaction (Fe2++H2O2→Fe3++•OH+OH-) is of special significance in the thyroid gland, as both its substrates, i.e. H2O2 and Fe2+, are required for thyroid hormone synthesis. Also iodine, an essential element supplied by the diet, is indispensable for thyroid hormone synthesis. It is well known that iodine affects red-ox balance. One of the most frequently examined oxidative proce...
A sample of mesoporous TiO2 (MT, specific surface area = 150 m2·g−1) and two samples of MT containing 2.5 wt.% Fe were prepared by either direct synthesis doping (Fe2.5-MTd) or impregnation (Fe2.5-MTi). Commercial TiO2 (Degussa P25, specific surface area = 56 m2·g−1) was used both as a benchmark and as a support for impregnation with either 0.8 or 2.5 wt.% Fe (Fe0.80-IT and Fe2.5-IT). The powde...
Backgrounds and Objectives: Leachate is one of the landfill products and also a wastewaterbearing the most advers effects on the environment. Biological methods are usually employed for treatment of young leachate (1-2 years) wich is of high concentration of organic compounds with low molecular weight. However these methods are not approprate for mature leachate (5-10years) due to having high r...
abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...
Degradation of polyvinyl alcohol was studied a combination of chemical treatment with Fenton process and biological degradation in anaerobic environment. The experiment was based on different amounts of hydrogen peroxide and of Fe(II) added to water solution of PVA of concentration 200-500 mg.L. Fenton process was monitored by analyzing the total organic carbon (TOC) in the solution. Depending ...
The Fenton reaction as an effective advanced oxidation technology has been widely used in wastewater treatment for its stable effluent quality, simple operation, mild condition, and higher organic degradation with non-selectivity. However, the traditional is limited by sluggish regeneration of Fe2+, resulting a slower rate, it necessary to further increase dosage which will production iron slud...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید