Tricel wastewater treatment systems


The Tricel wastewater treatment plant is a submerged aeration plant. This type of plant uses a simple proven technology which treats the wastewater with natural micro-organisms that are sustained in the plant with air given superior treatment results.

The micro-organisms remove the pollutants from wastewater. Micro-organisms need favourable conditions to grow and breed so that work to their optimum. Therefore it’s important that end user, uses caution on the substances entering the plant.

If the micro-organisms are accidently destroyed due to lack of food or oxygen, they will repopulate in 3-6 weeks. During this time, there may be a slight odour from the plant as it cannot work to its full potential until the micro-organism repopulate. To help ensure the micro-organisms are not destroyed, the following should be avoided.

Tricel Novo case study
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Tricel Novo works in three stages

Stage 1: the primary settlement chamber

In this chamber, the grease and the mud will be separated from the water. The grease will stay on the surface and the mud will go to the bottom of the tank.


Stage 2: the aeration chamber

In this compartment, the aerobic bacteria are going to digest the pollution from the wastewater.


Stage 3: final settlement chamber

In this final chamber, the mud residues are transferred to the primary chamber with an airlift system.

​What is the process of a domestic sewage treatment plant?

Wastewater Treatment Dont’s

Do not allow rainwater, groundwater or large volumes of water such as those from swimming pools, Jacuzzi’s into the wastewater treatment plant. Excessive water will increase the flow rate through the plant not allowing sufficient treatment time and may also flush the micro-organisms out.

Do not dispose of nappies, sanitary towels, baby wipes, cosmetic and cleaning wipes or similar, rags or non-bio-degradable material down the toilet as they block the drains and also cause malfunction in the plant.

Do not overuse bleach and disinfectants. These are safe to use in accordance with the manufacturer’s guidelines and in the minimum necessary concentration.

Do not pour neat bleach or disinfectants down the sink or outside drains. Often these are inappropriately used to treat foul odours from sinks and drains. However these foul smells are caused by a build-up of decaying material or a plumbing problem which should be dealt with using an appropriate method.

Do not switch off the plant while going on holidays. The plant should operate 24 hours per day, seven days a week. The air blower and the sludge return system maintain the bacteria during period of low occupancy. If the micro-organisms are destroyed due to the ingress of chemicals (or any of the products listed below) into the plant, the plant will have to be de-sludged and cleaned to restart the population of micro-organisms. The following substances will kill the working micro-organisms in the plant and should not be discharged of into the sinks or drains.

Don’t allow pesticides, paints, thinners, solvents, gardening chemicals or hazardous substances into the plant.

Do not pour Fats, grease or any oil down the sink or outside drains as this clog the plant.

Do not dispose of medicines down the sink. Dispose of as per the manufacturer’s instructions.

Do not use sink macerators unless the plant is specifically designed to accept this increased organic load. Sink macerators result in additional maintenance.
Some everyday products, such as milk, wine, beer can increase the organic load on the plant and cannot be disposed of down the sink or outside drains.

Wastewater Treatment Do's

Locate the treatment plant in a pedestrian area away from any super imposed loads.

Ensure the finished ground level is lower than the “max ground level” indicated on the plant.

Ensure that vents are clear as the plant requires a fresh supply of oxygen. Inspect regularly especially in the autumn to ensure vents are free of leaves.

Carry out regular inspections and yearly maintenance ensure the plant is operating at the optimum. Check regularly that the air blower is working by listening for the gentle hum from the plant. A yearly maintenance contract is available from your supplier.

Inspect the plant regularly and de-sludge using a licensed contractor to ensure it operates to its optimum.

Maintain a log of inspections, de-sludging and maintenance contracts to record the full service history of the plant.

Key Features

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Fast Delivery

Fast delivery + Rapid response to all our customers

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Tricel Products are certified to EN12566-1 and EN 12566-3 certified

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Technical  expertise

Unrivalled technical expertise by our sales team regarding wastewater treatment solutions

Our range of products

Tricel Vento

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.

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Tricel Novo Domestic sewage treatment

Tricel Novo Sewage Treatment Plant

Durable & long lasting SMC tank, shallow dig tank, easy installation (Plug and Play), long life components.

Learn more
Tricel Maxus Combi

Tricel Maxus Sewage Treatment Plant

Commercial plant. Submerged Aerated Filter (SAF) technology. Ideal for project over 50 PE.

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Tricel Tero tertiary treatment plant

Tricel Tero Tertiary Treatment

An eco-friendly and modular system with proven E.Coli Treatment capabilities in line with the new EPA requirements.

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Tricel Puraflo secondary treatment plant

Tricel Puraflo Secondary treatment plant

Ideal for sensitive sites, compliant to Irish Standard, small footprint.

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Tricel Sandcel sand polishing filter

Tricel Sandcel
Sand Polishing Filter

Provides a dual function of polishing the effluent from a wastewater treatment system and disposing it into groundwater.

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Pumping Solutions

Tricel Pumping Stations

Pump fluids from one place to another where gravity drainage cannot be used, easy and trouble-free installation

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A highly successful multinational corporation with over 50 years’ valuable industry experience


Plants available for all capacities, from 1PE up to 50PE. Free advice on request.

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On-time delivery is a core requirement of our successful business operations

Meet our team

To find a technician in your area, visit our page


To speak to one of our agents online, click here


Request a free quote today to have a quote that meets your project!

Frequently Asked Questions

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)

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.

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.

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

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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