نتایج جستجو برای: ferrate vi

تعداد نتایج: 43294  

2015
Kejia Zhang Zhang Luo Tuqiao Zhang Naiyun Gao Yan Ma

Sulfa antibiotics are a family of typical broad-spectrum antibiotics, which have become one of the most frequently detected antibiotics in water, posing a great threat to human health and ecosystem. Potassium ferrate is a new type of high-efficiency multifunctional water treatment agent, collecting the effects of oxidation, adsorption, flocculation, coagulation, sterilization, and deodorization...

2013
H. H. Bauer

Spectrophotometrlc and voltaanetric methods were developed for the analysis of potassium ferrate(VI) in dilute solutions, where the standard chromite method is inapplicable. A direct proportionality prevails between the ferrate concentration and the absorbance on the one hand, And the ferrate concentration and the ferrate reduction current on the other. However, voltaasetry has greater precisio...

Journal: :Water 2023

Ferrate(VI) is a green and efficient water treatment agent for drinking wastewater. It widely used in because it has multi-functional uses such as oxidation, algae removal, disinfection, adsorption flocculation. does not cause secondary pollution to the environment. This paper compares ferrate(VI) with other agents discusses three methods of preparing ferrate(VI). The adsorption, control organi...

Journal: :Chemical communications 2002
Joowook Lee Donald A Tryk Akira Fujishima Su-Moon Park

An extremely strong oxidant, ferrate (Fe(VI) or FeO4(2-), has been produced electrochemically in an acidic aqueous medium for the first time.

Journal: :Journal of hazardous materials 2009
Hui-Long Wang Shu-Qin Liu Xiu-Yan Zhang

The encapsulated potassium ferrate(VI) (K(2)FeO(4)) samples were successfully prepared by phase separation method in organic solvents. The ethyl cellulose and paraffin were selected for the microcapsule wall materials (WM). The as prepared microcapsules were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The stability can be enhanced greatly when f...

2004
V. K. Sharma

A cyanide-laden effluent of the gold mining industry must be treated before it can be released to the aquatic environment. Current treatment methods such as natural degradation, sulfur based, hydrogen peroxide, ozonation, and alkaline chlorination are not adequate for meeting newer treatment standards. A new chemical oxidant that utilizes iron in the +6 oxidation state, ferrate [Fe(VI)] was stu...

2015
Yu-Ling Wei

Potassium ferrate (K2FeO4) is a multi-functional green reagent for water treatment with considerable combined effectiveness in oxidization, disinfection, coagulation, sterilization, adsorption, and deodorization, producing environment friendly Fe(III) end-products during the reactions. This study uses a simple method to lower Fe(VI) preparation cost by recycling iron from a spent steel pickling...

Journal: :Water environment research : a research publication of the Water Environment Federation 2014
Rohan Gandhi Ajay K Ray Virender K Sharma George Nakhla

This paper presents the results of a study conducted on the treatment of combined sewer overflows using ferrate (VI) [Fe (VI)]. At a Fe (VI) dose of 0.24 mg/L, total chemical oxygen demand (TCOD), soluble chemical oxygen demand (SCOD), total biochemical oxygen demand (TBOD5), soluble biochemical oxygen demand (SBOD5), total suspended solids (TSS), volatile suspended solids (VSS), total phosphor...

2009
Virender K. Sharma George A. K. Anquandah Nasri Nesnas

The kinetics of the oxidation of endocrine disruptor nonylphenol (NP) by potassium ferrate(VI) (K2FeO4) in water as a function of pH 8.0–10.9 at 25 C is presented. The observed second-order rate constants, kobs, decrease with an increase in pH 269–32 M s. The speciation of Fe(VI) (HFeO4 and FeO4 ) and NP (NP–OH and NP–O) species was used to explain the pH dependence of the kobs values. At a dos...

Journal: :Journal of Korean Society of Water and Wastewater 2012

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید