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Summary of Contents for Tricel Duos P6
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Page 2: Table Of Contents
4.1 Stage 1: Existing primary settlement chamber: 4.2 Stage 2:Aeration (treatment) chamber: 4.3 Stage 3:Final settlement chamber: 5. Plant dimensions: 6. Plant drawings: 7.Technical drawings of Tricel pumped plant: 8.Lid locking points: 9.Manhole risers (deep inverts): 10. Installation: 10.1 Pre-installation tank inspection: 10.2 Quick installation guidelines:... -
Page 3: Transporting, Unloading And Storage Of Tanks
1.2 Electrical/Maintenance: • All electrical work to be carried out by competent persons using suitable materials for the application. • Do not open the Tricel ® Duos cover without firstly isolating the mains power. • Electrical work must be carried out strictly to the manufacturer’s instructions and to the relevant national rules for electrical installations. - Page 4 1.3 I n s t a l l at i o n : • Excavation work should be planned with due regard to health and safety requirements. • Excavation should either be shored or battered back to a “safe” angle. •...
- Page 5 Ensure sufficient lifting height can be achieved and is available on site. If not a lifting bar as per option 2 is required. Option 1* Option 2* 6. Tanks which are greater than 4 modules (4.6m) in length should be lifted using the slings provided as per option 3, shown below.
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Page 6: Introduction
3. Introduction: Tricel Duos wastewater treatment plants are manufactured from Sheet Moulding Compound (SMC) ensuring a durable and strong product. The Tricel Duos is manufactured in modular components and these modules are fabricated together to make different size tanks. The Tricel Duos Submerged aeration system is suitable for domestic and light commercial applications. These plants use a simple, proven technology, comprising of 2 treatment zones. -
Page 7: The Wastewater Purification Process
4. The wastewater purification process: 4.1 Stage 1: Existing Primary settlement chamber: The wastewater is introduced into the primary chamber which must proceed the Duos system (not included). Settlement occurs when the heavier solids, drop out of the wastewater and settle to the bottom of the tank to create sludge and when lighter solids, like fats or oils, float to the top of the water to create a scum. -
Page 8: Plant Dimensions
5. Plant Dimensions: Tricel Duos wastewater treatment plants. Design population 6 person 8 person 10 person 12 person 18 person 24 person Nominal inlet/outlet pipe diameter Overall length Overall width 1.64 1.64 1.64 1.64 1.64 1.64 Overall height 2.24 2.24 2.24... -
Page 9: Plant Drawings
7500 BOD load (max) kg/day 2.16 2.52 No. of persons 10-30 13-36 14-42 16-50 Air blower rating (mean) watts 200+ 80 200 x 2 200x2 **Allow 100kgs extra for lifting purposes 6. Plant Drawings: Tricel Duos 6 person gravity plant:... - Page 10 Tricel Duos 8 person gravity plant: Tricel Duos 10 person gravity plant: Tricel Duos 12 person gravity plant:...
- Page 11 Tricel Duos 18 person gravity plant: Tricel Duos 24 person gravity plant: Tricel Duos 30 person gravity plant:...
- Page 12 Tricel Duos 36 person gravity plant: Tricel Duos 42 person gravity system Tricel Duos 50 person gravity system:...
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Page 13: Technical Drawings Of Tricel Pumped Plant
7. Technical drawing of Tricel Duos pumped plant: All plants are available with a pumped outlet option. The pump can be housed in the final settlement chamber of the system. The standard pump option has a 1 ½” connection on the outside of the plant. Our standard pump specification is outlined below. -
Page 14: Manhole Risers (Deep Inverts)
500mm enter the system 750mm Only Tricel Duos manhole risers should be used *Plants with a manhole riser of 500mm or 750mm must have a concrete installation. 500mm and 750mm risers cannot be retrofitted unless the correct installation is in place. -
Page 15: Installation
All installations must be “fit for purpose” to suit the on-site conditions, which will vary from site to site. This is the responsibility of the onsite contractor. The Tricel Duos is suitable for a maximum manhole riser of 750mm which gives a maximum inlet invert of 1310mm, as per picture. -
Page 16: Quick Installation Guidelines
10.2 Quick installation guidelines: A dry site is one where the water table never rises higher than the base of the Tricel Duos tank. A wet site is one where the water table may rise higher than the base of the Tricel Duos tank. -
Page 17: Detailed Installation Information
Tricel Duos should be adequately drained, to permanently remove ground water and surface water from the proximity of the tank. The Tricel Duos system is not suitable to be used in water logged sites, where the ground water may rise above the inlet level. -
Page 18: Excavation Size
10.3.1 Excavation size: Suitably sized equipment will be required to excavate the hole and to lift the system into place. Installation depends on on-site conditions, water, slopes, location etc. Excavation should be planned with due regard to health and safety requirements. The excavation should allow a minimum 250mm clearance between the tank and the excavation wall or face of shoring. -
Page 19: Eexcavation Dept
10.3.2 Excavation depth: The excavation depth is determined by the inlet and outlet pipe, invert levels relative to the bottom of the tank, and allowing for the minimum base thickness shown. Dimension details of the tank are shown on the relevant drawing, given in section 6. Ground instability e.g. running sand may necessitate over- excavation and stabilization with hard core or blinding concrete. -
Page 20: Loadings
A gravel surround can be used in dry site conditions if the inlet invert is less than 810mm (maximum 250mm riser). A dry site is one where the water table never rises higher than the base of the Tricel Duos tank. -
Page 21: Tank Base/Plinth
10.4.1 Tank base/plinth: • Remove any soft spots or large stones and boulders • The base is constructed of compacted gravel. Refer to 10.5.1 • Ensure that base is level and at the correct height to accommodate the incoming pipe work 10.4.2 Installing onto the base/plinth: •... -
Page 22: Concrete Installations
810mm and 1310mm (plants with 500mm and 750mm risers). A wet site is one where the water table may rise higher than the base of the Tricel Duos tank. The option of a reinforced concrete slab or deadman anchor may also be used. This should be designed by an on-site structural engineer to suit site conditions. -
Page 23: Backfilling A Wet Site
10.5.3 Backfilling a wet site: Refer to backfill specification appropriate for site conditions • Ballast* the plant by filling each chamber with clean water to a depth of 300mm and recheck the pipe work levels. Commence backfilling evenly around the tank ensuring that there are no voids. -
Page 24: Plinth And Backfill Specifications
10.6 Plinth and B ac kfi l l specifications: 10.6.1 Gravel backfill specification: Primary backfill specification: Primary backfill material should be free-flowing granular material. Compaction should be by lightweight rollers or vibratory plate compactor until “traffic” depth has been achieved. Compact gravel evenly to ensure tank is properly supported. -
Page 25: Concrete Backfill Specifications
Pea Gravel Crushed Stone 10.6.2 Concrete backfill specification Semi dry concrete 25n grade with a ratio of 4.5 aggregate to 1 cement. Note: Standard concrete mixes should not be used, where sulphates or similar aggressive chemicals are present in the groundwater. Lift height (rate of rise): Determine the lift height (m), or rate of rise (m/h) for the specific concrete type used, to ensure that a design pressure (P max) of 15kN/m... -
Page 26: Electrical Installation
The plumbing to and from the plant should be completed by a competent person in accordance with national regulations and best practices. Important Do not: Plumb storm-water (water) from roofs, drains, footpaths etc., into the Tricel Duos Wastewater treatment plant Grease Trap: Best practice indicates that a grease trap be fitted before the plant particularly in applications where high quantities of grease exist in the wastewater. -
Page 27: Ancillary Installation Notes
13. Ancillary installation notes: The finished ground level should never be higher than the level indicated on the system. A riser should be fitted if required, see section 9. 13.1 Ventilation: Ventilation is crucial to the system and should be installed as per the building regulations. -
Page 28: Plant Operation
Once the Tricel Duos plant is installed and operational, it is important that it’s commissioned by our service team or a Tricel Duos distributor to ensure it is working effectively. A commissioning certificate will then be issued to the customer. -
Page 29: Maintenance
The inlet and outlet should be inspected and rodded to remove any blockages if necessary. The Tricel Duos plant will require a full service (available from your supplier) every year to guarantee the efficiency of the plant is maintained. Service personnel must be accommodated with clear access to the tank. -
Page 30: Production Of Sludge
Empty the Tricel Duos plant using the vacuum tanker. Ensure the solids are removed with the liquid. Care must be taken not to damage the Tricel Duos plant with the hose of the vacuum tanker. • Replace the de-sludging access cover securely... -
Page 31: Operation Conditions
If de-sludging is required it should be done as soon as possible. Ensure there is a functioning septic tank before the Tricel Duos system. This should be ideally fitted with an effluent filter at the outlet. •... -
Page 32: Troubleshooting
• Do not allow any of the following to enter the plant: • Large quantities of milk, alcohol or food • Large quantities of bleaches or cleaners • Baby wipes, cosmetic and cleaning wipes • Sanitary towels • Tampons • Kitchen paper •... - Page 33 Symptom Possible causes Corrective action Blower/Pump won’t Fuse blown (if applicable) Replace with fuse of proper size start or run Tripped breaker Reset breaker Low line voltage and An electrician should check the power supply to wet electrics the system Defective blower/pump Blower/pump must be checked by a qualified person Blower operates but...
- Page 34 Plant fills above Subsurface disposal Contact installer to repair sub surface disposal working water level system clogged system/ Percolation area. Storm water flooding Redirect storm water drains. Storm water must never enter the system Pump not working Check pump is functioning properly as above...
- Page 35 Discharge hose/pipe blocked Find blockage and remove or replace damaged hose/pipe Alarm is sounding Air return pipe to the alarm Check that the air pipe is not damaged or bent. Ensure but the pump and there is air blowing through this pipe. Check that the not returning an air signal.
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Page 36: Certification
19. Certification: The Tricel Duos passed all structural testing (crush test & durability test) carried out by PIA staff. Water tightness tests were performed by PIA at our headquarters on the range of tanks up to P50 successfully passed all...
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