نتایج جستجو برای: persulfate

تعداد نتایج: 981  

2016
Zhe Jia Xiaoguang Duan Wenchang Zhang Weimin Wang Hongqi Sun Shaobin Wang Lai-Chang Zhang

Stability and reusability are important characteristics of advanced catalysts for wastewater treatment. In this work, for the first time, sulfate radicals (SO4∙-) with a high oxidative potential (Eo = 2.5-3.1 V) were successfully activated from persulfate by a Fe78Si9B13 metallic glass. This alloy exhibited a superior surface stability and reusability while activating persulfate as indicated by...

Journal: :American journal of industrial medicine 2011
Gianni Pala Patrizia Pignatti Gianna Moscato

BACKGROUND Occupational and environmental factors may be a cause of nonasthmatic eosinophilic bronchitis (NAEB). The diagnosis of occupational NAEB requires evidence of sputum eosinophilia. Nevertheless, a minority of patients are not able to produce suitable sputum specimens. METHODS This case report describes a 25-year-old woman, working as a hairdresser since the age of 20 years and handli...

Journal: :Berichte der deutschen chemischen Gesellschaft 1908

Journal: :Zeitschrift f�r anorganische Chemie 1902

الله زارعی, امین, بذرافشان, ادریس, بلارک, داوود, توسلی, پریسا, مقصودی, زهرا, کرد مصطفی پور, فردوس, کمانی, حسین,

Background and purpose: Pharmaceutical products, particularly antibiotics are emerging contaminants that cause major environmental challenges due to cumulative effects, different adverse effects, and leading to drug resistance. The aim of this experimental study was to evaluate the efficiency of advanced oxidation process by persulfate activated by UV in removal of ofloxacin from aqueous soluti...

آزادبخت, فاطمه, اسرافیلی, علی, امیری, مهناز, ساجدی فر, جواد, غلامی, میترا, یگانه بادی, مجتبی,

Background and purpose: Antibiotics are extensively used in treatment of diseases. Metronidazole is an antimicrobial agent and is a nitroimidazole derivative, which is widely used in treatment of infectious diseases caused by bacteria and protozoa. This compound is irrefrangible, toxic, carcinogenic, mutagenic, and has high solubility in water. Advanced oxidation process is an effective method ...

Introduction. Azithromycin is among the broad-spectrum antibiotics that is widely available in various environmental systems and could have destructive effects on the ecosystem and human health due to its bacterial resistance. In this study, removal of azithromycin from wastewater using an advanced oxidation process of ultraviolet light with and without persulfate was investigated and effective...

Journal: :Chemical communications 2012
Saya Tanaka Masahiko Annaka Ken Sakai

The Mo-based polyoxometalates containing mono- and dicobalt(III) catalyst cores, [CoMo(6)O(24)H(6)](3-) and [Co(2)Mo(10)O(38)H(4)](6-), were found to serve as O(2)-evolving catalysts in a system consisting of tris(2,2'-bipyridine)ruthenium(II) (Ru(bpy)(3)(2+)) and sodium persulfate (S(2)O) in an aqueous borate buffer solution at pH 8.0. Kinetics of O(2) evolution reveals that the higher cobalt ...

Efficiency of Electro-Persulfate Process Optimized with Hydrogen Peroxide in Removal of Hospital Wastewater COD by Response Surface Methodology   B. Bina[1], Y. Hajizadeh[2], S. Karimi[3], H. Ahmadnia[4], M. Meserghani[5]   Received: 26/09/2017  Sent for Revision: 25/12/2017    Received Revised Manuscript: 05/05/2018       &nb...

2016
Chao Du Mengru Liu Bingyun Li Hailong Li Qijun Meng Huaiyu Zhan

This article describes a novel one-step method to prepare cellulose nanocrystals (CNCs) from bleached bagasse pulp via ammonium persulfate (APS) oxidation. The obtained persulfate oxidation cellulose nanocrystals (POCNs) were characterized for their microstructure, crystal properties, and chemical composition. The POCNs were successfully prepared with a total yield of 44.6%. Transmission electr...

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