Tricel Novo UK10, Technical Manual

Page: 7 / 44

6
•
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.
2 Introduction: 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.