Jae H Jo

US Patent:

6887368, May 3, 2005

Filed:

Sep 25, 2002

Appl. No.:

10/253546

Inventors:

Aron Mikhailovich Khalemsky - Yekaterinburg, RU
Sergei Abramovich Payusov - Yekaterinburg, RU
Leonid Kelner - Reston VA, US
Jae Jo - Setauket NY, US

Assignee:

Ural Process Engineering Company, Ltd. - Yekaterinburg

International Classification:

C02F001/461

US Classification:

205702, 205744, 205761, 205771, 2042306, 2042307, 204268, 204269, 204272

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.