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The Scarab
Treatment System has been designed to take full advantage of these processes.
Firstly the Septic Tank performs the function of breaking down organic
solids, by way of microbial digestion, into soluble organic compounds which are
then flushed into the final chamber of the septic tank as Sewage effluent with
little or no solids. The effluent is then delivered to the Scarab Biological
Filter in a manner designed to regulate the processing time.
The Biological filter with
it's advanced aeration techniques facilitates the growth of biomass for the
biological cleaning of the effluent. The effluent is re-circulated and
oxygenated on an hourly basis in order to maximise the refinement process.
Finally the treated effluent is passed on to Eco-Tec Bio-Ozonation, this
is the disinfection stage for the removal of pathogens and any remaining
bacteria. The choice of final disinfection would be dependent on site specific
requirements. E.g. If there is no power available then the option is Chlorine.
When Ozone is
used the final effluent is as clear as drinking water and totally
environmentally friendly, perfect for ecologically sensitive areas.
Bio-tower
Aeration
One of the
latest and most exciting advances in the treatment of domestic sewage effluent
is Accelerated Oxygenation Technology.
This process
uses a standard water pump and a Pressurisation Chamber to produce the highest
possible concentration of Oxygen in sewage effluent.
All
Scarab and Eco-Scarab Treatment Systems now incorporate this highly
efficient technology, such that the final effluent has a Dissolved Oxygen
content in excess of 85%, this exceeds the Special Standards required by DWAF
(Department Water Affairs)
who's minimum requirement is
75%.
Similar type
plants using aeration pumps and small bubble diffusers achieve a dissolved
oxygen rate lower than that required for even general standards.
Applications
The versatility of the Scarab
Treatment Plants are such that they are pre-engineered in a modular, Lego type
of construction and can be designed to process from as little as 1000 litres of
domestic effluent per day to as much as 150 000 litres per day.
In cases where
waterborne sewage is not available the Scarab or Eco-Scarab Treatment
System is ideal.
Common
applications include:
Single houses, Townhouse
complexes, Schools, Holiday resorts, Retirement villages, Farms, Low Cost
Housing Suburbs, Small towns
Ozonated, Sewage
Treatment System:
Processing 80 Individual
Luxury Game Park Lodges
Above shows a recent
Eco-Scarab Installation
BoschenVaal in OFS
region, South Africa
Product
and Operational Description
Recycling
of treated Sewage Effluent for garden irrigation allows a saving of up to 60% of
water bills
Pre-Digestion Tanks
The first stage
and a pre-requisite for the installation of a Scarab Treatment System is
a correctly installed Septic Tank. In the septic tank the process begins with
the digestion of organic solids into soluble organic compounds. This effluent is
then passed on to the Scarab by way of a submersible pump.
Scarab Biological Filter
The Scarab
Biological Filter is comprised of 5 sections for the processing of the sewage
effluent.
Constant
Header Unit
This unit
performs the function of controlling the flow of sewage effluent
through the Biological Filter. Internal adjustments allow the Scarab to be set
to meet each individual customers requirements.
Mixing Chamber
The Sewage
Effluent is introduced into the Biological Filter and is mixed constantly with
pre-oxygenated effluent.
Circulation Chamber
This Chamber
circulates the effluent from the Pressurisation Chamber back into the Mixing
Chamber. Each litre of effluent is re-oxygenated at least once every hour
thereby creating the highest possible concentration of Oxygen in the effluent at
all times.
Accelerated
Oxygenation Unit
A standard water pump
circulates the effluent through the Pressurisation Chamber, where the effluent
is oxygenated by mixing it with Air, under high pressure, to allow for the
maximum absorption of oxygen.
Media
Chamber
The Media
chamber is packed with Bio-Pak to allow for the highest possible surface area.
It is on these surfaces that BioMass form. BioMass is responsible for biological
refinement of the effluent to a stage where the final output is as CLEAR
as drinking water and totally ODOURLESS.
Pathogen Treatment Tank
(Eco-Tec Bio-Ozonation)
Before final
discharge it is imperative to disinfect the clear water effluent for any
remaining Pathogens or other Bacteria. This is accomplished with Eco-Tec
Bio-Ozonation. This ensures that discharged effluent is totally
environmentally friendly. Treated effluent may be discharged for irrigation or
introduced into other systems such as a dam, stream or stormwater drains.
Standards
All
Scarab Treatment Systems are designed to conform to the specifications
required by the Department Of Water Affairs And Forestry (DWAF) in terms of
the General and Special Standards Water Act.
Maintenance
Due to the
design and the high efficiency of all Scarab Treatment Systems very little
maintenance is required. A weekly or monthly check on Pathogen treatment and
pressure light indicator is all that is required. Servicing of all pumps
should be carried out bi-annually as a preventative measure.
Plant
Specifications
Construction Material:
LLDPE -
Tanks and internal Piping
PVC -
Standard external Fittings
Pumps:
0.4kw
single phase 230-volt pump
Indicators
and Alarms:
Pressure
indicator Light and gauge Operation alarms. On application
Media:
Bio-Pak
Pathogen
Treatment:
Ozone or Chlorine
Operation:
Within 3
days of operation the system achieves General Standards.
Denitrification
and phosphate removal occurs after 21 days to meet Special Standards.
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