On the applications of peroxodiphosphate produced by BDD-electrolyses

被引：57

作者：

Sanchez, Ana ^{[1
]}

Llanos, Javier ^{[1
]}

Saez, Cristina ^{[1
]}

Canizares, Pablo ^{[1
]}

Rodrigo, Manuel A. ^{[1
]}

机构：

[1] Univ Castilla La Mancha, Fac Chem Sci & Technol, Dept Chem Engn, E-13071 Ciudad Real, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2013年 / 233卷

关键词：

Peroxodiphosphate; Cyanide; Organic matter; Oxidation; Waste treatment; DOPED DIAMOND ANODES; ELECTROCHEMICAL SYNTHESIS; PHOSPHATE RADICALS; ELECTRODES; BENZENES; ACID;

D O I：

10.1016/j.cej.2013.08.022

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Peroxodiphosphate can be produced efficiently by electrolyses of phosphate solutions with boron-doped diamond electrodes. This oxidant is proposed in literature as a promising alternative to persulphates and to other oxidants typically used in environmental remediation processes and it is also known to have a significant role in the Understanding Of the electrolyses of wastes polluted with organics when phosphates are contained in significant concentrations in the waste. This manuscript clarifies the reactivity of solutions containing electrochemically produced peroxophosphate solutions with various aromatic (phenol and naphthol) and aliphatic (maleic acid and 2-propanol) organic pollutants and also with cyanide, and compares results obtained in these chemical oxidation test with those obtained using similar oxidants such as hydrogen peroxide, peroxosulphate and hypochlorite. Results show that peroxodiphosphate can oxidize organic pollutants but it is much less powerful than hydrogen peroxide. Opposite, the oxidation of cyanide with this oxidant seems to offer significant advantages if compared with that of hypochlorite and shows a very promising process to treat efficiently wastes polluted with cyanide. In every case, it was demonstrated that oxidation efficiency of peroxophosphate produced electrochemically is much more significant than that shown by commercial peroxosulphate. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：8 / 13

页数：6

共 23 条

[1] DISSOCIATION CONSTANTS AND KINETICS OF HYDROLYSIS OF PEROXYMONOPHOSPHORIC ACID [J].

BATTAGLIA, CJ ;

EDWARDS, JO .

INORGANIC CHEMISTRY, 1965, 4 (04) :552-+

[2] The occurrence of bromate and perbromate on BDD anodes during electrolysis of aqueous systems containing bromide: first systematic experimental studies [J].

Bergmann, M. E. Henry ;

Iourtchouk, Tatiana ;

Rollin, Johanna .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2011, 41 (09) :1109-1123

[3]

Brillas E., 2011, PRODUCTION STRONG OX

[4] Influence of the characteristics of p-Si BDD anodes on the efficiency of peroxodiphosphate electro synthesis process [J].

Canizares, P. ;

Saez, C. ;

Sanchez-Carretero, A. ;

Rodrigo, M. A. .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (04) :602-606

[5] Electrochemical synthesis of peroxodiphosphate using boron-doped diamond anodes [J].

Cañizares, P ;

Larrondo, F ;

Lobato, J ;

Rodrigo, MA ;

Sáez, C .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (11) :D191-D196

[6]

Cohen B., 1971, US Patent, Patent No. [3 555 147, 3555147]

[7] Service life of Ti/SnO2-Sb2O5 anodes [J].

CorreaLozano, B ;

Comninellis, C ;

DeBattisti, A .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1997, 27 (08) :970-974

[8]

Gaffar A., 1983, DE Patent, Patent No. [3 246 946 A1, 3246946]

[9]

Gaffar A., 1983, DE Patent, Patent No. [3 627 759 Al, 3627759]

[10] Oxidation of carboxylic acids at boron-doped diamond electrodes for wastewater treatment [J].

Gandini, D ;

Mahé, E ;

Michaud, PA ;

Haenni, W ;

Perret, A ;

Comninellis, C .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2000, 30 (12) :1345-1350

← 1 2 3 →