Method and device for electroextraction of heavy metals from technological solutions and wastewater
Abstract
The basic principles of the method for heavy metals electroextraction from technological solutions and wastewater includes pretreating to remove Chromium-6 and high concentrations of heavy metals and periodically treating in a six-electrode bipolar cylindrical electroreactor made of non-conducting material to achieve lower accepted levels of impurities. Six cylindrical steel electrodes form two triode stacks and are fed with three-phase alternating current of commercial frequency (50-60 Hz), which can be pulsed. Each phase of the three-phase current is connected to three electrodes of one triode stack or in parallel to two triode stacks. The parallel connection of three-phase current to two triode stacks is performed so that the same phase of the three phase current is connected in parallel with each two opposite electrodes of six electrodes located along the periphery, or with two adjacent electrodes. A bipolar stationary aluminum electrode is situated in the inter-electrode space. In one of the embodiments, the bipolar electrode is made of a perforated heat-resistant plastic container filled with secondary aluminum and duralumin scrap. In another embodiment, the bipolar electrode of aluminum or duralumin scrap may be made without a perforated container and is placed in the inter-electrode space as a bulk scrap. In thismore »
- Inventors:
- Issue Date:
- Research Org.:
- Ural Process Engineering Company, Ltd. Yekaterinburg (Russia)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175337
- Patent Number(s):
- 6887368
- Application Number:
- 10/253,546
- Assignee:
- Ural Process Engineering Company, Ltd.
- Patent Classifications (CPCs):
-
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- DOE Contract Number:
- AC02-98CH10886
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Khalemsky, Aron Mikhailov, Payusov, Sergei Abramovic, Kelner, Leonid, and Jo, Jae. Method and device for electroextraction of heavy metals from technological solutions and wastewater. United States: N. p., 2005.
Web.
Khalemsky, Aron Mikhailov, Payusov, Sergei Abramovic, Kelner, Leonid, & Jo, Jae. Method and device for electroextraction of heavy metals from technological solutions and wastewater. United States.
Khalemsky, Aron Mikhailov, Payusov, Sergei Abramovic, Kelner, Leonid, and Jo, Jae. Tue .
"Method and device for electroextraction of heavy metals from technological solutions and wastewater". United States. https://www.osti.gov/servlets/purl/1175337.
@article{osti_1175337,
title = {Method and device for electroextraction of heavy metals from technological solutions and wastewater},
author = {Khalemsky, Aron Mikhailov and Payusov, Sergei Abramovic and Kelner, Leonid and Jo, Jae},
abstractNote = {The basic principles of the method for heavy metals electroextraction from technological solutions and wastewater includes pretreating to remove Chromium-6 and high concentrations of heavy metals and periodically treating in a six-electrode bipolar cylindrical electroreactor made of non-conducting material to achieve lower accepted levels of impurities. Six cylindrical steel electrodes form two triode stacks and are fed with three-phase alternating current of commercial frequency (50-60 Hz), which can be pulsed. Each phase of the three-phase current is connected to three electrodes of one triode stack or in parallel to two triode stacks. The parallel connection of three-phase current to two triode stacks is performed so that the same phase of the three phase current is connected in parallel with each two opposite electrodes of six electrodes located along the periphery, or with two adjacent electrodes. A bipolar stationary aluminum electrode is situated in the inter-electrode space. In one of the embodiments, the bipolar electrode is made of a perforated heat-resistant plastic container filled with secondary aluminum and duralumin scrap. In another embodiment, the bipolar electrode of aluminum or duralumin scrap may be made without a perforated container and is placed in the inter-electrode space as a bulk scrap. In this case, to prevent shorts, each of six steel electrodes is placed in isolated perforated plastic shell with holes of 5 mm in diameter. Non-ferrous metals are extracted in a form of ferrite-chromites, and aluminates as well as hydroxyl salts deposited in the inter-electrode space without electrolysis deposits on electrodes. Deposits are separated from solution by known methods of filtration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 03 00:00:00 EDT 2005},
month = {Tue May 03 00:00:00 EDT 2005}
}