نتایج جستجو برای: ferrate vi

تعداد نتایج: 43294  

Background; The aim of this study is to compare UV, ferrate (VI) and UV/ferrate (VI) methods for removal of hydrogen sulfide and chemical oxygen demand (COD) from municipal wastewater under a continuous condition. Methods; The experiment was divided into three parts: 1) pollutants removal by using ferrate (VI) alone; 2) pollutants removal using UV alone; 3) pollutants removal using a combina...

Amirreza Talaiekhozani, Malihe Salari, Mohammad Reza Talaei, Zeinab Eskandari,

 Background: In this study, ferrate (VI) and ultraviolet (UV) radiation were employed to remove hydrogen sulfide from municipal wastewater resulting in a reduction in chemical oxygen demand (COD). Although ferrate (VI) and UV have been used individually for the removal of a few pollutants from urban and industrial wastewater, there exists no study to investigate the effectiveness of si...

2013
JIA-QIAN JIANG

Ferrate (VI) exhibits many advantages because of its dual functions of oxidation and coagulation. Removal of micro pollutants by ferrate(VI) was pH dependant and this was in coordinate to the chemical/physical properties of the pollutants and ferrate(VI) speciation. Promising performance of ferrate(VI) in the treatment of real waste water was observed. It is important to determine whether the f...

Journal: :Journal of hazardous materials 2007
J Q Jiang

The aim of this paper is to review the research progress of using ferrate(VI) in following fields of environmental remediation: (1) water disinfection; (2) degradation of synthetic organic pollutants; (3) treatment of emerging organic pollutants; (4) oxidation of inorganic pollutants; (5) removing humic substance; (6) wastewater treatment and disinfection; and (7) sewage sludge treatment. Whils...

Journal: :jundishapur journal of health sciences 0
amirreza talaiekhozani department of civil engineering, jami institute of technology, isfahan, ir iran; department of civil engineering, jami institute of technology, isfahan, ir iran. tel: +98-3152636319 marzieh bagheri department of chemical engineering, jami institute of technology, isfahan, ir iran mohammad reza talaei department of chemical engineering, faculty of engineering, university of isfahan, isfahan, ir iran nematollah jaafarzadeh environmental technologies research center, ahvaz jundishapur university of medical sciences, ahvaz, ir iran

conclusions to solve the above mentioned difficulties, fundamental study most be carried out to discover the novel methods of ferrate(vi) production, focusing on increasing the product stability and the production yield. results despite the existence of these technologies, there is no full-scale application of ferrate(vi) in the water and wastewater industry which it is due to difficulties asso...

Journal: :مجله انسان، محیط زیست و ارتقاء سلامت 0
amirreza talaiekhozani department of civil engineering, jami institute of technology, isfahan, iran. zeinab eskandari department of chemical engineering, jami institute of technology, isfahan, iran. marzieh bagheri department of chemical engineering, jami institute of technology, isfahan, iran. mohammad reza talaie chemical engineering department, isfahan university, isfahan, iran

background; the aim of this study is to compare uv, ferrate (vi) and uv/ferrate (vi) methods for removal of hydrogen sulfide and chemical oxygen demand (cod) from municipal wastewater under a continuous condition. methods; the experiment was divided into three parts: 1) pollutants removal by using ferrate (vi) alone; 2) pollutants removal using uv alone; 3) pollutants removal using a combinatio...

2005
Jia-Qian Jiang S. Wang A. Panagoulopoulos

The use of potassium ferrate(VI) as an alternative water treatment chemical for both drinking water and sewage treatment has been studied and is reported in this paper. The performance of potassium ferrate(VI) was evaluated in comparison with sodium hypochlorite (NaOCl) and NaOCl plus ferric sulphate (FS) and aluminium sulphate (AS). The effects of the dosages of ferrate(VI), NaOCl and FS/AS an...

Journal: :Environmental science and pollution research international 2010
Virender K Sharma Nigel J D Graham Xiang-Zhong Li Bao-Ling Yuan

BACKGROUND, AIM AND SCOPE Photocatalytic oxidation using UV irradiation of TiO(2) has been studied extensively and has many potential industrial applications, including the degradation of recalcitrant contaminants in water and wastewater treatment. A limiting factor in the oxidation process is the recombination of conduction band electrons (e(-)(cb)) with electron holes (h(vb)(+)) on the irradi...

Journal: :environmental health engineering and management 0
amirreza talaiekhozani civil engineering department, jami institute of technology, isfahan, iran zeinab eskandari chemical engineering department, jami institute of technology, isfahan, iran mohammad reza talaei chemical engineering department, shiraz university, shiraz, iran malihe salari civil engineering department, jami institute of technology, isfahan, iran

background: in this study, ferrate (vi) and ultraviolet (uv) radiation were employed to remove hydrogen sulfide from municipal wastewater resulting in a reduction in chemical oxygen demand (cod). although ferrate (vi) and uv have been used individually for the removal of a few pollutants from urban and industrial wastewater, there exists no study to investigate the effectiveness of simultaneous...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
C Li X Z Li

In this study, the degradation of bisphenol A in aqueous suspension by interaction of photocatalytic oxidation and ferrate(VI) oxidation was investigated under different conditions. The results indicate that the formation of Fe(V) and Fe(IV) is in the photocatalytic reduction of Fe(VI) by electron (ecb-) on the surface of TiO2. The oxidation efficiency of the photocatalytic oxidation in the pre...

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