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Household wastewater treatment plants
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- May 13, 2025
When it’s time to upgrade your household wastewater treatment system, or invest in one for the first time, you need a durable solution that gives you peace of mind. It should be efficient, reliable, easy to operate and straightforward to install. With the Tricel Novo, that’s exactly what we deliver.

Over the years, Tricel has established itself as a leading name in the household wastewater treatment industry in Ireland and beyond. Our best-selling system, the Tricel Novo wastewater treatment plant, is recognised for being reliable, cost-effective, and dependable.
Household wastewater treatment systems must be practical, reliable, and easy to handle – three qualities that have convinced households across the country and beyond. Our plant is built from SMC, a material known for its strength and durability while remaining one of the lightest to install.
Technically, the process runs through three chambers: the primary settlement chamber, the aeration chamber, and the final settlement chamber – ensuring effective treatment at every stage. The system is fully certified to EN12566-3 CE standards, meeting strict environmental regulations with confidence.
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How a Tricel Novo Works?
Stage 1: the primary settlement chamber
In the primary settlement chamber, anaerobic breakdown takes place into this first stage of the effluents treatment. As the wastewater is entering into the domestic wastewater treatment system, the solids are dropping to the bottom, becoming automatically detached from the liquid.
Stage 2: the aeration chamber
Secondly, aerobic breakdown is introduced. As the liquid moves through the filter media, the bacteria (sustained by an air compressor) are getting fed by the waste and eradicate it from the liquid.
Stage 3: final settlement chamber
Last but not least, the soon-to-be treated domestic sewage flows from the aeration chamber into the final settlement chamber. Once again, the suspended sludge will settle to the chamber’s bottom and will be pumped back to the first purification zone via an airlift system. The remaining liquid now meets the required standard and can pass out of the Tricel system.
Distances to respect from your household wastewater treatment plant
If you are planning to install household wastewater treatment equipment, including a septic tank, there are important rules regarding placement that must be followed. The distance between your treatment system and your home is essential to avoid issues with performance and to ensure high-quality effluent.
The EPA Code of Practice provides a distance calculator designed to prevent system malfunction and safeguard environmental standards.
Minimum Distance Regulations
Your sewage treatment plant must be installed at:
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5 metres from any surface water soakaway
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10 metres from a watercourse or stream
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10 metres from an open drain
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50 metres from a lake or foreshore
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7 metres from your dwelling
Additional Requirements
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Keep at least 3 metres from trees and site boundaries (such as fences).
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Maintain 4 metres from the road.
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If your property has a percolation area, ensure a minimum of 10 metres between one wastewater treatment facility and another.
Household wastewater treatment plants
Lightweight system making on-site delivery easy.
No need for heavy machinery or deep digging that damages your garden.
Low visual impact in your garden.
Larger projects: commercial installations up to 50 PE
Ideal for installation at housing estates, campsites, hotels, and many other settings.
Tricel Novo: Key features & benefits
The compression moulding process is one of the most technologically advanced features available on the market. Components are manufactured under heat and high pressure. They have a competitive strength and durability over standard GRP tanks or PE tanks.
SMC is a unique material in the sewage treatment industry with Tricel SMC tanks operating in some of the harshest climatic conditions for over 50 years with no defects.
Tricel’s ceramic diffuser will last twice as long as all standard competitors rubber equivalents. It is a cost-saver in both call out fees and replacement parts.
No concrete backfill for installation on most sites which allows you to save up to €400 over lower quality GRP/plastic competitors.
There are no moving parts or pumps in the plant which is ensuring reliable operation during the treatment process and minimal running costs.
Tricel Novo plants are designed with a shallow invert to limit both installation and time costs.
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Plants available for all capacities, from 1PE up to 50PE. Free advice on request.
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Our range of products
Tricel Vento Septic Tank
Shallow dig tank, strong & robust underground tank, No electrical or moving parts. Ideal for sites with good drainage & plenty of space.
Tricel Novo Sewage Treatment Plant
Durable & long lasting SMC tank, shallow dig tank, easy installation (Plug and Play), long life components.
Tricel Maxus Sewage Treatment Plant
Commercial plant. Submerged Aerated Filter (SAF) technology. Ideal for project over 50 PE.
Tricel Tero Tertiary Treatment
An eco-friendly and modular system with proven E.Coli Treatment capabilities in line with the new EPA requirements.
Tricel Puraflo Secondary treatment plant
Ideal for sensitive sites, compliant to Irish Standard, small footprint.
Tricel Sandcel
Sand Polishing Filter
Provides a dual function of polishing the effluent from a wastewater treatment system and disposing it into groundwater.
Tricel Pumping Stations
Pump fluids from one place to another where gravity drainage cannot be used, easy and trouble-free installation
Key Features
Fast Delivery
Fast delivery + Rapid response to all our customers
Certified
Tricel Products are certified to EN12566-1 and EN 12566-3 certified
RELIABLE & LONG-LASTING
SMC tank, strong & lightweight
Frequently Asked Questions
WHAT IS PE ?
PE represents the initials of Population Equivalent. Population equivalent: conversion value which aims at expressing non-domestic applications in terms of domestic loading based on 1 person creates 60 g/day BOD5 and 150l/day. (Code of Practice: Wastewater Treatment and Disposal Systems Serving Single Houses (p.e. < 10), EPA)
DIFFERENT PRODUCTS SOLD BY TRICEL
Tricel Novo & Vitae
Both are wastewater treament plant solutions manufactured by Tricel. Wastewater treatment plants offer a superior quality of treatment. For example, the Tricel Novo comprises of three independent wastewater treatment zones and offers an average of efficiency of 95.9% BOD removal.
This is a higher treatment standard than the effluent from a septic tank. Please note: all wastewater treatment plants used in Ireland must comply with the EN12566-3 standard and all septic tanks must comply with the EN12566-1 standard..
Tricel Vento
The septic tank from Tricel is manufactured as a primary treatment. Designed for the settlement of your effluent. This product may need an additional treatment like the Sandcel or Puraflo.
WARRANTIES
Most Tricel products have a warranty. To discover all the guarantees on our products, as well as on the internal parts, consult our dedicated product pages.
WHAT IS THE QUALITY OF THE WASTEWATER PRODUCED?
The required standards are 20:30:20 BOD, SS, NH4. All Tricel produces exceed the requirements when tested to En12566-3 and comply with SR66.
Learn more about our certification
MAINTENANCE ON THE WASTEWATER TREATMENT SYSTEMS
Tricel recommends that you maintain your device to the fullest. You are obliged by law to avoid all types of pollution or nuisances. Do not hesitate to contact us for more information on our service contracts. An annual maintenance contract may be offered.
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