In order to meet the water treatment
needs of individuals, small corporations
and SMEs, BIOTECH Engineering has developed,
tested and patented two very easy to use, compact,
high performance waste water treatment systems.
The principal characteristic of both of these systems
is that, in addition to the actual treatment unit, they
also contain a primary settling tank, a secondary settling
tank and an excess sludge storage tank, all within the
The primary settling tank : This compartment is located
at the head of the station and allows us to avoid the
need to install a septic tank and a grease trap upstream
of the station. In fact, the settling tank separates
the liquids (which are sent for treatment) from the
grease and heavy matter that remains trapped in the
settling tank, which is emptied once a year.
The secondary settling tank and the excess sludge storage
tank : during separation of the treated water, the biological
waste water treatment process gives rise to what could
be called a "by product" consisting principally
of inert matter, mineralised matter resulting from the
purification process, and the biological medium (active
and broken down). The amount of such sludge produced
by the process itself obviously increases over time,
and the amount contained within the medium must be checked
and controlled if we are to avoid completely "choking"
biological activity and causing significant amounts
of sludge to be carried away in the treated effluent
and a reduction in the efficiency of the waste water
treatment system. The secondary settling tank thus separates
the sludge from the treated effluent. The sludge storage
tank allows the excess sludge to be removed from the
medium and must be emptied once a year.
Our SED-A system not only fully complies with the requirements
of the Walloon, the Flemish and European regulations
concerning the quality of effluent discharge, but is
also adaptable, as its capacity can be increased by
40 percent through the addition of a bacterial bed.
Our SED system, for its part, is a high performance
system and its efficiency is significantly higher than
that currently required by the Walloon and the Flemish
Region. It can be used in sensitive areas where more
severe restrictions apply. It can also be used for heavily
charged water whose treatment using traditional extended
aeration techniques would require much larger installations
to be provided or, more simply, because you want to
provide maximum protection to the environment.