<p>
The electrochemical activation phenomena were discovered by Russian
engineer Bakhir in 1975. Then the electrochemical activation (ECA)
technology has been widespreading in Russian Federation and many other
countries in the world, including Vietnam.
In Vietnam, since 2005 a researcher group of Institute of Environmental
Technology, VAST, has began to study and fabricate the ECA divices by
using imported from RF different electrochemical chambers suchs as FEM-3,
FEM-7, MB-26, especially the latter model MB-11, which seemed to be the
most suitable in work under tropical climate of Vietnam. However, after
operating in real weather conditions our ECA device based on an
electrolytical chamber MB-11 has exhibited some disadvantages such as ECA
chamber’s temperature increasing, rapid deposition on the catode etc.,
resulting in worsening product’s quality as well as decreasing equipment’s
lifespan.
The need to improve the ECA solutions produced on the MB-11 - based
ECA devices has become urgent since 2011. The research group of the
Institute of Environmental Technology, among which author of this thesis has
played an important role, have found out the solution to constrain the
temperature increasing effect of the electrolytical process by changing the
hydraulitic scheme of the device. The success of the improved designing of
the ECA equipment using MB-11 module will open new possibilities to solve
the problems of disinfection of hospital waste water which the Institute of
Environmental Technology is dealing with for 15 years.
</p>
