Tricel Novo UK6 User manual

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106 Rev 11 Dec 2017
Tricel®Novo UK6-50
Wastewater Treatment Plants
Engineering a green future

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Contents
1Health & safety precautions .................................................................................................................................5
1.1 General .............................................................................................................................................................5
1.2 Electrical / maintenance...............................................................................................................................5
1.3 Installation.......................................................................................................................................................5
2Introduction: Tricel Novo ..................................................................................................................................... 6
2.1 Treatment stages.......................................................................................................................................... 6
3Tricel Novo range ....................................................................................................................................................7
3.1 Dimensions......................................................................................................................................................7
3.2 Tank drawings ................................................................................................................................................8
3.3 Pumped outlet ............................................................................................................................................. 11
3.3.1 Standard pump specification:..............................................................................................................12
3.3.2 Outlet connection: ..................................................................................................................................12
4Transportation & lifting .......................................................................................................................................13
4.1 Lifting tanks of 1-4 modules (Max. 4.6m) .............................................................................................13
4.2 Lifting tanks of 5-6 modules (Max. 6.6m).............................................................................................14
5 Installation ..............................................................................................................................................................15
5.1 Installation planning...................................................................................................................................15
5.2 Inspection opon reception of tanks........................................................................................................15
5.3 Positioning and precautions.....................................................................................................................15
5.4 Types of installation....................................................................................................................................16
5.5 Installation procedure ................................................................................................................................17
5.5.1 Excavation (Dry & Wet sites)................................................................................................................17
5.5.2 Installation –step by step guide.........................................................................................................19
5.6 Gravel specification.................................................................................................................................... 20
5.7 Concrete specification................................................................................................................................21
5.8 Topsoil requirements..................................................................................................................................21
5.9 Risers.............................................................................................................................................................. 22
5.10 Non-standard installations ...................................................................................................................... 23
5.10.1 Alternative to concrete backfill (for wet sites without risers only) ................................ 23
5.10.2 Sloping ground .................................................................................................................................. 23
5.10.3 Proximity to rolling & static loads ................................................................................................ 23
5.11 Electrical requirements.............................................................................................................................. 24
5.11.1 Electrical Diagrams............................................................................................................................ 25

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5.12 Additional accessories............................................................................................................................... 30
5.12.1 Grease trap.......................................................................................................................................... 30
5.12.2 Sampling chamber ............................................................................................................................ 30
6Plant operation ..................................................................................................................................................... 30
6.1 Diffuser-manifold calibration (only applicable on plants UK18 and greater) ..............................31
6.2 Timed sludge-return system (only applicable to plants UK18 and greater).................................31
7Disposal of treated water ................................................................................................................................... 32
8Maintenance .......................................................................................................................................................... 32
8.1 Regular maintenance................................................................................................................................. 32
8.2 Annual maintenance.................................................................................................................................. 32
8.3 Annual service(availablefromyoursupplier) ....................................................................................... 32
8.4 Production of sludge................................................................................................................................. 33
8.5 De-sludging (emptying the solid waste from the primary chamber) ........................................... 33
9Operating conditions........................................................................................................................................... 33
10 Troubleshooting.............................................................................................................................................. 35
10.1 Plant operation ........................................................................................................................................... 35
10.2 Odours........................................................................................................................................................... 37
11 Certification ...................................................................................................................................................... 37
11.1 Declaration of performance..................................................................................................................... 38
12 Terms & conditions..........................................................................................................................................41
Important
This manual must be used in conjunction with British Water’s ‘Flows and Loads’ when sizing
wastewater treatment plants.

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1Health & safety precautions
It is important to read the full technical manual prior to installation. Retain this document for the
lifetime of the product and in the event of a change of ownership of the site, transfer to the new owner.
As health and safety are of vital importance, the following aspects are critical:
1.1 General
• Ensure the adherence to all the information contained in this manual at all times.
• Treated wastewater is not suitable for human consumption.
• It is important that locks are fitted to the lid to prevent accidental access.
• Manholes are rated to 125kg and are for pedestrian use only.
• Never enter a tank, unless qualified to do so.
• Do not use naked flames in the vicinity of the tank due to the danger of combustion.
• The manhole access covers shall never be left off an unattended tank. Following the
completion of any work carried out, always lock the access covers of the plant.
• Sewage and sewage effluent can carry micro-organisms and gases harmful to human
health. Any person carrying out work on the plant must be trained appropriatly. Suitable
protective clothing; including gloves, goggles should be worn at all times. Always remove
contaminated clothing and protective equipment after working with sewage treatment
plants. Wash hands and face before eating, drinking or smoking.
• All manhole access covers must be kept locked for safety reasons. Tanks are supplied with
three locking points, as shown below. All locking points should be locked with a suitable
locking device to prevent unauthorised access. Locking devices do not come supplied.
1.2 Electrical / maintenance
• All electrical work to be carried out by a qualified electrician using suitable materials
for the application.
•Do not open the Tricel Novo air-blower housing without first isolating the mains power.
• Electrical work must be carried out strictly to the manufacturer’s instructions and comply
with the relevant national regulations for electrical installations.
• When working with machinery / electrical equipment, the proximity of water shall be
noted. Electrical equipment shall not be wet when working with it.
• There is thepotential danger of falling into the tank during de-sludging when utility holes
may be open –take all necessary safety precautions when de-sludging.
1.3 Installation
• Plan excavation work with due regard to health and safety requirements.
• Excavated material should either be shored or battened back to a “safe” angle.
• Use appropriate lifting equipment.
• Take necessery care around ground-work machinery.
• Keep proper footing and balance at all time.

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•Installations that require 500mm or 750mm risers require a concrete installation. It is not
possible to retrofit 500mm & 750mm risers to tanks with gravel installations.
2Introduction: Tricel Novo
Tricel Novo wastewater treatment plants are manufactured from Sheet Moulding Compound
(SMC) ensuring a durable and strong product. SMC is a fiberglass-based compression moulded
material used in applications that require high strength and durability. Lightweight and compact
design facilitate ease of installation for domestic and light commercial applications up to 50 PE.
The Tricel Nov gets manufactured in modular components; the individual modules are fabricated
together to make various sized tanks.
2.1 Treatment stages
1. Wastewater from the dwelling, toilets, sinks, shower and further domestic sources enter the
plant.
2. The effluent enters the primary settlement chamber. Settlement occurs when the heavier solids
drop out of the wastewater and settle to the bottom of the tank to create sludge, and the lighter
solids float to the top of the water to create a scum. The top layer acts as a seal and stops
odours escaping. This chamber separates up to 70% of the solids present.
3. Next is the aeration chamber, where masses of naturally occurring bacteria inhabit specially
designed plastic filter media. The bacteria feed on the waste removing it from the liquid. A
continuous supply of air from the low pressure, high volume compressor in the top section of
the unit sustains these bacteria. Wastewater passes through the filter media repeatedly,
ensuring a very high treatment efficiency.
4. The wastewater then proceeds to the final settlement chamber. Any remaining minute bacterial
particles separate from the wastewater within this chamber before discharge from the plant.
This process slows the liquid’s velocity, allowing for any final trace impurities to settle to the
bottom of the tank. A sludge return system then returns these impurities to the primary
settlement chamber.
5. The remaining treated wastewater now meets the required standard and is safely passed out
of the Tricel Novo plant. The treated effluent is now ready for discharge to a suitably designed
discharge area as required by the relevant local authority.

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3Tricel Novo Range
3.1 Dimensions
Tricel Novo wastewater treatment plants: certified to EN 12566-3:2005
Tricel Novo
UK6
UK8
UK10
UK12
UK18
UK24
UK30
Max. Population Equivalent
PE
6
8
10
12
18
24
30
Design flow rate (max.)
litres/day
900
1200
1500
1800
2700
3600
4500
BOD load (max.)
kg/day
0.36
0.48
0.6
0.72
1.08
1.44
1.8
No. of persons
1-6
3-8
4-10
4-12
6-18
8-24
10-30
Primary chamber capacity
litres
1485
1934
2178
2300
2552
3498
3930
Nominal inlet/outlet diameter
mm
110
110
110
110
110
150
150
Overall length
m
2.1
2.6
3.1
3.6
4.6
5.6
6.6
Overall width
m
1.64
1.64
1.64
1.64
1.64
1.64
1.64
Overall height
m
2.24
2.24
2.24
2.27
2.27
2.27
2.27
Inlet invert to base
m
1.375
1.375
1.375
1.375
1.375
1.35
1.35
Outlet invert to base
m
1.3
1.3
1.3
1.3
1.3
1.3
1.3
Inlet invert to ground level
m
0.535
0.535
0.535
0.535
0.535
0.56
0.56
Outlet invert to ground level
m
0.61
0.61
0.61
0.61
0.61
0.61
0.61
Height above ground level
m
0.33
0.33
0.33
0.36
0.36
0.36
0.36
Weight empty**
kg
270
300
370
400
500
600
700
Air-Blower (50Hz)
W
64
86
86
100
215
215
215+86
De-sludge period (minimum)***
year
1-3
1-3
1-3
1-3
0.5-2
0.5-2
0.4-1
Thickness (minimum)
mm
5
5
5
5
5
5
5
Retention time
hours
83
78
76
74
64
59
56
*Tanks may require a stepped foundation, with “Tank B” lower than “Tank A” by 100mm approx.
**Allow 100kgs extra for lifting purposes.
*** Depending on use.
Tricel Novo
UK36*
UK42*
UK50*
Tank A
Tank B
Tank A
Tank B
Tank A
Tank B
Max. Population Equivalent
PE
36
42
50
Design flow rate (max)
litres/day
5400
6300
7500
BOD load (max)
kg/day
2.16
2.52
3
No. of persons
13-36
14-42
16-50
Primary chamber capacity
litres
4808
5963
5963
Nominal inlet/outlet diameter
mm
150
150
150
150
150
150
Overall length
m
2.6
5.6
2.6
6.6
3.6
6.6
Overall width
m
1.64
1.64
1.64
1.64
1.64
1.64
Overall height
m
1.99
2.27
1.99
2.27
1.99
2.27
Inlet invert to base
m
1.35
1.35
1.35
1.35
1.35
1.35
Outlet invert to base
m
1.3
1.3
1.3
1.3
1.3
1.3
Inlet invert to ground level
m
0.46
0.56
0.46
0.56
0.46
0.56
Outlet Invert to ground level
m
0.51
0.61
0.51
0.61
0.51
0.61
Height above ground level
m
0.18
0.36
0.18
0.36
0.18
0.36
Weight empty**
kg
300
600
300
700
400
700
Air-Blower (50Hz)
W
215 + 86
215 X 2
215 X 2
De-sludging period (minimum)***
year
0.4-1
0.4-1
0.4-1
Thickness (minimum)
mm
5
5
5
5
5
5
Retention time
hours
57
55
51

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3.2 Tank drawings
The arrow indicates a compartment which it is necessary to empty when de-sludging the plant.

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Two-tank Tricel Novo plants require a stepped installation:
3.3 Pumped Outlet
•All Tricel Novo tanks are available with a pumped outlet option. The pump is housed in the
final settlement chamber of the plant.
•A non-return valve installed on the pumped outlet will prevent backflow into the plant.
•Outlined below is the standard pump specification. Other pump options are available to
customer specifications if required; please contact your Tricel Novo supplier.
•Min. discharge rate: 60 l/min
•Continuous duty with 35°C
liquids & fully submerged.
•Dry motor (class F
insulation).
•IP68 protection.
•Single phase 220-240V 50 Hz
2 poles.
•0.55kW for single phase.

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3.3.1 Standard pump specification:
3.3.2 Outlet connection:
The Tricel Novo pumped outlet plant has a 50mm end-connector compression fitting which is
positioned on the turret of the Tricel Novo. 50mm OD MDPE black piping must be connected to this
end-connector compression fitting to transfer the treated wastewater to the discharge point.
0
1
2
3
4
5
6
7
050 100 150 200 250 300
Head (metres (m))
Pumping distance (metres (m))
50mm OD MDPE Black Pipe

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4Transportation & lifting
• Tanks must be held down during transportation using nylon straps, do not use cables
or chains to secure tanks. Do not over tighten straps that can result in deformation of the
tank shell. Do not drop or roll tanks from the truck.
• Move tanks only by lifting and setting, do not drag or roll.
•Always set the tank(s) on flat, smooth ground clear of any debris. Tanks may need to be tied
down and chocked to prevent movement. Position the chocks in the locations shown below:
• It is best tolift tanks by a machine and webbing lifting straps –do not use chains or wire ropes
in contact with the tank.
• Ensure tank is empty when lifting.
• Care is needed to control the lift so as to ensure the tank is not damaged.
• Ensure the slings are positioned at a joint on the tank, firmly secured, and the load is
evenly balanced.
4.1 Lifting tanks of 1-4 modules (Max. 4.6m)
• Tanks up to 4.6m in length should be lifted using the eyebolts on the tank.
• Tanks up to 4.6m in length can be lifted using only lifting straps, as shown in Option 1 , next
page. However, on sites where lifting height is restricted, a lifting bar should be used as
shown in Option 2 :

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4.2 Lifting tanks of 5-6 modules (Max. 6.6m)
• Tanks which are greater than four modules (4.6m) in length should be lifted using the slings
provided as depicted per Option 3 , shown below. However, on sites where lifting height is
restricted, a lifting bar should be used as shown in Option 4 :
Note: To ensure the angle of the sling is not greater than 60
o
, as per Option 1 above, the following
sling lengths are required:
Length of tank
Minimum length of sling
2.1
2.1
2.6
2.6
3.1
3.1
3.6
3.6
4.6
4.6
5.6
5.6
6.6
6.6

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5 Installation
5.1 Installation planning
Important
Prior to the installation of the Tricel Novo , it is important to read these installation instructions
carefully.
•When planning the installation of a Tricel Novo plant, consider the following:
Backfill considerations:
oIs this a dry or wet site, i.e., the presence of a water table?
oWhich backfill material is appropriate for this site?
oWhat are the finished ground level and will risers be required?
Note: Installations that need 500mm or 750mm risers require a concrete installation. It
is not possible to retrofit 500mm & 750mm risers to tanks with gravel
installations.
Site considerations:
oIs the site restricted regarding area or height?
oWhat is the topography of the site, i.e., being it sloping or flat?
oWhat is the proposed depth of the installed tank to ensure the required slope
upstream?
oAre static or rolling loads present on this site?
•Only suitably qualified personnel should install the Tricel Novo.
• Suitably sized equipment will be required to excavate the hole and to lift the Tricel Novo
into place.
5.2 Inspection opon reception of tanks
• Visually inspect tanks for damage such as fractures to the shell or ribs, de-laminations,
scratches, or abrasions deeper than 1.5mm, which may have occurred during transport,
before installation. Notify the delivery driver and your supplier of any damage. Do not
attempt to carry out any unauthorized repairs, as this will invalidate the warranty on the tank.
• Once tank installation is complete, Tricel cannot accept any claims for damage.
5.3 Positioning and precautions
•Do not undertake the installation of the Tricel Novo in an area subject to flooding or excessive
water runoff as no flood waters should enter the tank.
•The area around the Tricel Novo should be adequately drained, to permanently remove ground
water and surface water from the proximity of the tank.

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•The Tricel Novo is not suitable to be used in water logged sites, where the ground water may
rise above the inlet invert pipe.
•When selecting the location of the Tricel Novo , ensure that it is always accessible for future
maintenance.
5.4 Types of installation
All installations must be “fit for purpose” to suit the on-site conditions, which will vary from site to site
and is the responsibility of the onsite contractor.
When installing a Tricel Novo , there are two possible installation methods:
1. Gravel installation
2. Concrete installation
It is necessary to consider two factors when determining which installation must to implement:
1. Is the Tricel Novo being installed in a ‘Dry site’ or a ‘Wet site’?
•A ‘Dry site’ is a site in which the water table never rises higher than the base of the
tank.
•A ‘Wet site’ is a site in which the water table may rise higher than the base of the
tank but will not rise higher than the invert of the inlet. Sites where a higher water
level is present, ensure that the installation is suitable for the site conditions.
Tricel strongly advises the installation of a vertical water table inspection pipe. This
inspection pipe will facilitate convenient monitoring of the water table long after
the completion of the installation process.
Note: In difficult soils (e.g., clay with a high t-value), a site could be potentially
classified as wet if there is no drainage for surface water that enters the excavation
and it rises higher than the base of the tank. The installer must determine this when
selecting the correct backfill.
2. Is a riser installation required, and if yes, what height riser must you use? (For more
information on risers, please refer to section 5.9 ‘Risers’).
The following table specifies the required installation for on-site conditions:
Factors that determine the required installation
Installation required
Type of site
Riser required
Dry
None
Gravel
Dry
250mm
Gravel
Dry
500mm & 750mm
Concrete
Wet
None
Concrete
Wet
250mm, 500mm & 750mm
Concrete

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Important
• Incorrectly installed tanks that are subject to movement, rotation or floatation may
become damaged, for which Tricel cannot accept liability.
• During installation, do not subject tanks to buoyant forces.
• Contact a qualified engineer if there are difficulties on site due to adverse water logging.
• Ballasting the tank is important to avoid the tank from lifting when backfilling.
5.5 Installation procedure
5.5.1 Excavation (Dry & Wet sites)
Important
All excavation works must be done so under the strictest of supervision and in accordance with
all associated construction guide lines.
5.5.1.1 Excavation: Length & Width
Length and width of the excavation must exceed the dimensions of the Tricel wastewater treatment
plant by a minimum 500mm to maintain a minimum space of 250mm all around the tank.
Note: In gravel installations, it is imperative that the gravel backfill is thoroughly compacted to
maximise support for the tank and ensure that there will be no movement in the tank over
time.
Tricel Novo
Tank length
(m)
Tank width
(m)
Min. excavation size (L x W)
(m)
6
2.1
1.64
2.6 x 2.14
8
2.6
1.64
3.1 x 2.14
10
3.1
1.64
3.6 x 2.14
12
3.6
1.64
4.1 x 2.14
18
4.6
1.64
5.1 x 2.14
24
5.6
1.64
6.1 x 2.14
30
6.6
1.64
7.1 x 2.14
36
Tank A
2.6
1.64
3.1 x 2.14
Tank B
5.6
1.64
6.1 x 2.14
42
Tank A
2.6
1.64
3.1 x 2.14
Tank B
6.6
1.64
7.1 x 2.14
50
Tank A
3.6
1.64
4.1 x 2.14
Tank B
6.6
1.64
7.1 x 2.14
Note: The size of the area for excavation applies to both dry and wet sites. However, unstable ground
with excessive sand, peat swamps, etc., may require larger excavations. The excavation should be
maintained dry by pumping or whateversuitablemeans.

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5.5.1.2 Excavation: Depth
The depth that the Tricel Novo must be installed is determined by the outlet pipe from the source
of the wastewater.
Please refer to section 5.9 ‘Risers’ to determine the maximum invert for the Tricel Novo. Allowances
for maximum inverts must be made when the connecting sewer system is being designed by a qualified
individual. The Tricel Novo is not suitable where a deeper installation is required.
Outlined below, are the minimum distances (mm) that the excavation dimensions must exceed the
tank dimensions for both concrete and gravel installations. Please refer to section 3.1, ‘Dimensions’
to view all tank dimensions.
Note: Ground instability, e.g. running sand may necessitate over-excavation and stabilization with
hard core or blinding concrete.
Tank width (mm)
“a” minimum (mm)
“b” minimum (mm)
Dry Site
1640
250
250
Wet Site
1640
250
300

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5.5.2 Installation –step by step guide
Steps
Installation required
Gravel
Concrete
Installation
of the tank
base:
1
Remove any soft spots or large stones and boulders.
2
A 250mm layer of suitably compacted
gravel forms the base.
A 50mm layer of suitably compacted gravel,
covered with a 250mm layer of semi dry
concrete forms the base.
3
Ensure that base is level and at the correct height to accommodate the incoming pipe
work.
4
It is important to maintain a completely dry
excavation until the final pour of concrete
becomes set. It may be necessary to line the
excavation with a continuous layer of 1200-
gauge polythene to maintain the integrity of
the concrete.
Positioning
the tank
onto the
base:
5
Mechanically lift the plant carefully into
the centre of the hole and place on the
prepared base.
Mechanically lift the plant carefully into the
centre of the hole before the concrete sets.
6
The plant must sit level on the base.
7
Connect and seal the pipe work to the tank.
Backfilling
around the
tank:
8
Ballast the plant by filling each chamber with clean water to a depth of 300mm and
recheck the pipe work levels.
9
Commence backfilling with gravel in
layers of 225mm evenly around the tank
ensuring that there are no voids until
gravel has reached 50mm over the
cylindrical body of the tank. Compact
each layer in succession. *
Commence backfilling evenly around the
tank, ensuring that there are no voids until it
has reached the invert of the outlet pipe.
Continue backfilling with gravel, until it has
reached 50mm over the cylindrical body of
the tank. *
Note
* Continue filling the chambers with water while backfilling, ensure that the progressive water
level is no more than 300mm above the backfill level.
10
Mount and seal manhole risers (if used). Please refer to section 5.9 ‘Risers.’
11
Complete backfilling with topsoil up to the max ground level. Allow for subsequent
settlement of topsoil.
Important
A competent person should complete the plumbing to, and from, the plant in accordance with
national regulations and best practices.