For inspection purposes only. Consent of copyright owner required ...

into the activation chamber, using an energy saving fluid
transfer mechanism.
In the activation chamber, the oxygen supply to the
micro-organisms is managed, to create aerobic and
anaerobic/de-nitryfing 1 . conditions. Pollutants are
absorbed by the activated sludge and converted into a
biomass. Excess activated sludge is returned to the
primary chamber, to maintain a sludge volume of
400 ml/l in the activation phase.
3 Settlement period: When the six hour 2 activation
phase is complete, the aeration/agitation system is
switched off and the two hour settlement phase
commences. The activated sludge settles on the base of
the chamber.
4 Discharge: The treated effluent is then pumped from
the activation chamber to the polishing filter, and the
treatment cycle recommences.
The plant automatically operates a three month start up
programme. The certificate holder recommends injecting
the activation chamber with 30 litres of activated sludge
per person to accelerate growth of activated sludge.
During times of continuous low flows, or when the
dwelling is un-occupied, the CPT Zons® AQUAstar®
waste water treatment plant system automatically
switches to economy mode. This reduces agitation and
aeration times, and requires less electricity, while
maintaining functioning activated sludge in the system.
2.2 MANUFACTURE
2.2.1 General
The tank body, with integral walls and floor, is cast in
the inverted position, in a single pour, using C55/65 self
compacting, fibre reinforced concrete.
The tank cover and access covers are cast in
conventionally reinforced C55/65 self compacting
concrete.
The CPT Zons® AQUAstar® kit, which is assembled
from proprietary components, is quality checked, then
fitted to the activation chamber baffle wall, using
stainless steel wall mounting brackets, prior to dispatch.
The MULTICOM® 100 is also fitted, prior to dispatch.
The tank cover is sealed in place using bitumen tape
sealant and primer.
The connection cable and IP66 socket, alarm beacon,
sampling bottle, inlet and outlet pipe connections and
labels are fitted prior to dispatch.
2.2.2 Product range
The system range and design details are shown in
Tables 1and 2, and Figure 1 and 2.
2.2.3 Ancillary items
The system is supplied with all the required components
in place.
Distribution boxes for the treated effluent are available
from the Certificate holder but are outside the scope of
this Certificate.
1 The effluent nitrogen levels are influenced by temperature and
background levels in local water supply.
2 The values given are approximate. Process times are modified
at commissioning and servicing to suit actual design flows.
Certificate No. 08/0318 / CPT Zons® AQUAstar®
All components in contact with effluent are made of
stainless steel, ABS, uPVC or polypropylene.
2.2.4 Quality control
The Certificate holder operates a quality management
system and continuous quality control is exercised
during manufacture. Quality controls include checks on
incoming raw materials and ancillaries, concrete cube
test, equipment calibration, operational testing of CPT
Zons® AQUAstar® kit, visual inspection and water
tightness testing.
2.3 DELIVERY, STORAGE AND MARKING
2.3.1 The Certificate holder delivers the CPT Zons®
AQUAstar® waste water treatment plant to site on a
platform-bodied truck with rear-mounted articulating
crane. The Certificate holder installs the unit in the
excavation, in accordance with CPT Zons® AQUAstar®
SBR Installation Guide.
All lifting equipment and procedures shall comply with
the requirements of the Safety, Health and Welfare at
Work Act 2005. The Certificate holder’s instructions shall
be followed to avoid damage to the tank during offloading
and installation.
All works associated with the excavation, and access to
it, must be fully in accordance with best practice and all
relevant statutory requirements.
The unit is normally delivered to site for immediate
installation. However if on site storage is necessary, the
tank should be stored upright, on stable, level ground, of
adequate bearing pressure, with the cover in place to
prevent ingress of water. The tank should only be lifted
when empty; water should be pumped out if necessary.
2.3.2 The unit is marked as follows:
For inspection purposes only.
Consent of copyright owner required for any other use.
• adhesive label bearing: unique serial number,
IAB identification Mark incorporating the number
of this Certificate, Certificate holder’s details,
model type and population equivalent ;
• Concrete access covers incorporate the IAB logo;
• Inlet and outlet pipe connections are identified.
EPA Export 24-08-2012:23:55:55