Stability Of Ferrate Research Articles

Stability of ferrate during long-term storage

Abstract Surface water and groundwater are polluted with pharmaceuticals, detergents, pesticides, and many other substances. Application of ferrates seems to be a perspective option for wastewater treatment as ferrates are not only powerful oxidizing agents but also an excellent disinfecting and coagulating agents decomposing many stable inorganic, organic, and biological compounds. Final products of their decomposition do not include carcinogenic or toxic products. In this paper, stability of electrochemically prepared potassium ferrate encapsulated in packaging materials printed on a 3D printer was monitored. In the experiment, electrochemically prepared potassium ferrate with different purity (21.4 %, 63.5 % and 67.3 %) was used. Stability of potassium ferrate was monitored for one month and that of other ferrates for three months. Different storage conditions of ferrate samples were also compared. Storage conditions had a significant influence on the ferrate stability.

Research Progress on the Stability of Ferrate in Aqueous Solution

Ferrate; Stability; Suggestion

On-line electrochemical production of ferrate (VI) for odor control

Sulfur-containing compounds are one kind of representative odorant from sewage, wastewater treatment plants and associated with various industries. In this study, the on-line electrogenerated ferrate (VI) technique was used to remove gaseous methyl mercaptan (CH3SH) for odor control. The second-order reaction kinetics of CH3SH oxidation with ferrate was identified and meanwhile, the stability of ferrate in high alkaline medium was investigated for the first time. The influencing factors including alkalinity, current density and co-existing ions on the ferrate formation were also investigated with details in this study. Experimental results show that for the ferrate formation, the 14moldm−3 NaOH is the optimal alkalinity at 4.5mAcm−2; increasing current density and decreasing the SO42− concentration are helpful for the ferrate production. This fundamental research provides essential understanding for developing the on-line electrochemical ferrate process for gaseous sulfur-containing compound degradation in odor control.

Study on Stability of Ferrate (VI) under the Effect of the Buffering Agent and the Strong Oxidizer

In order to extend the preservation time of the ferrate, the experiment was carried out to study the type of strong oxidizer and buffering agent through static comparing test. The orthogonal test determined the best parameters of sulfate type, temperature and the dosage. The result shows that the inhibitory action of Na2S2O8 is the strongest oxidizer, and the temperature had the important role on ferrate stability. The higher temperature, the quicker the ferrate decomposition speed. The Na2S2O8 effect on stability was the best at any temperature and the dosage of Na2S2O8 could be controlled between 0.5% and 1.0%.The carbonate buffering agent could play certain stable effect, the ferrate decomposition is only 7.65% from the 2nd day to the 10th day when the mole ratio of NaHCO3 and NaOH was 2:1 and the density was the ferrate’s 100times.

Stability of Ferrate(VI) Ion in Aqueous Solution

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStability of Ferrate(VI) Ion in Aqueous SolutionJ. M. Schreyer and L. T. OckermanCite this: Anal. Chem. 1951, 23, 9, 1312–1314Publication Date (Print):September 1, 1951Publication History Published online1 May 2002Published inissue 1 September 1951https://doi.org/10.1021/ac60057a028RIGHTS & PERMISSIONSArticle Views676Altmetric-Citations57LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (312 KB) Get e-Alerts Get e-Alerts