Use of Electromembrane Technology for Waste Water Treatment and Modern Acidic Catalyst Synthesis
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
7th International Symposium on Synthetic Membranes in Science and Industry 1994
29 Aug - 1 Sep 1994
,
Tübingen
|
| Journal |
Desalination
ISSN: 0011-9164
|
| Output data |
Year: 1996,
Volume: 104,
Number: 1-2,
Pages: 107-111
Pages count
: 5
DOI:
10.1016/0011-9164(96)00032-X
|
| Tags |
Electromembrane method, Heteropoly acid synthesis, Waste water treatment |
| Authors |
Kulikov S.M.
1,2,4
,
Kulikova O.M.
2
,
Scharkova O.V.
2
,
Maximovskaya R.I.
3
,
Kozhevnikov I.V.
3
|
| Affiliations |
| 1 |
Karl-Winnacker-Institute of DECHEMA e.V
|
| 2 |
Institute of Chemistry of Natural Organic Materials
|
| 3 |
Boreskov Institute of Catalysis
|
| 4 |
The University of the West Indies
|
|
The use of electromembrane technology for aluminium plant waste water treatment and for a new type of acidic catalyst synthesis has been studied. To recycle the exhaust gas desulphurization solution of an aluminium plant whose main components were Na2SO4 and NaF the four-compartment electrodialyzer with one cation exchange and two anion exchange membranes was used. Desalination and recycling of this solution with simultaneous formation of caustic soda and AlF3 used in the main process is an example of waste water recycling. For tungstic heteropoly acid synthesis from sodium tungstate and phosphate the traditional two-compartment electrodialyzer with a cation exchange membrane was used. Electrochemical acidification of substrates in the anode compartment of the electrodialyzer with simultaneous removal of sodium ions through the membrane permits a quantitative yield of the product and excludes waste water formation.