GL0014K Owners Handbook BioDisc BD, BE, BF, BG, ND, NE, NF, NG
Page 10
(9) PROCESS INITIATION
During installation, the unit will have been filled with water to prevent flotation in the concrete
surround. Allow sewage to enter the unit, this will gradually displace the clean water used
during installation.
The colonisation by micro-organisms will commence naturally and a operating biomass will
establish itself on the discs in 3-6 weeks, depending on individual site circumstances. This
will continue to develop, but note the development is chemical and temperature sensitive.
SECTION 4
OPERATION
(1) INTRODUCTION
The biological treatment process of your BioDisc is self regulating and it requires no
specialised operational knowledge, but it is important that you are aware of the following:
Your BioDisc system uses colonies of live natural micro-organisms (biomass), to break
down the pollutants in the sewage. Many chemicals used in households and commercial
establishments can inhibit or kill these micro-organisms; particularly if used in excessive
amounts.
Bear in mind that treatment plants serving small populations do not have the benefit of
dilution that occurs at a large sewage works. A bottle of bleach tipped down the toilet in
Birmingham would be virtually lost amongst the millions of gallons of sewage arriving at the
city's treatment works; a bottle of bleach in a plant serving a few houses could be a lethal
dose for the biomass.
If the biomass is damaged, it will usually recover in time. But in the meanwhile one of the
more obvious symptoms is an unpleasant smell, so it is in the operators interest to avoid
this.
Generally speaking all common household cleaning fluids are acceptable, provided they are
used in accordance with the makers instructions and stipulated concentrations. The
following “Do’s and Don’ts“ includes the most common household chemicals, but It is not an
exhaustive list and the golden rule is "If in doubt - leave it out."
Bear in mind too that it isn't only the toilet that is connected to the treatment plant; anything
that goes down the sink, bath etc. also ends up there.
(2) DO’S AND DON’TS
Washing machine and dishwasher detergents, washing up liquids:
These are generally all right to use in the normal concentrations and usage found in
domestic housing applications. BioDisc incorporates a unique flow management system
which enhances its ability to handle shock loads of detergent waste, but problems can
sometimes occur due to high laundry usage in commercial establishments such as hotels
and nursing homes. Each BioDisc is supplied on the basis of an individual assessment of
the sewage load, including laundry usage. Please contact Klargester before making any
changes that might increase sewage output or the proportion of laundry waste water.
Excessive use of Biological and enzyme containing detergents may affect the biomass.
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