WASTEWATER TREATMENT
What is the cost of a residential wastewater treatment system?
OVERVIEW
Residential wastewater treatment system project
As every wastewater treatment project is different, there are a lot of possibilities and costs. Whether you are building a new house, buying an existing property, or upgrading the sewage treatment system of your home, there are different steps to properly define your project.
Before talking about costs, you need to identify your needs and usage of your solution!
Depending on the size of your project and the percolation test you will have several options that you can choose from primary, secondary, or tertiary treatment.
The site assessment will also recommend you some systems between the septic tank, packaged filter, sand polishing filters or the wastewater treatment plant.
Throughout this article, we will go through the different elements that can help you to define the cost of your residential wastewater treatment system.
The size of your wastewater treatment system
Determining the size of your system is the first step to have an idea of the cost of your project.
This part is one of the most important as the right sizing goes hand in hand with the efficiency of the treatment.
If the domestic wastewater treatment system is not sized correctly, the effluent can pollute the local environment. Such issues result in damaged wells or water sources and cause problems for public health.
How to determine the size of your system?
The common metric used to calculate the size of a residential wastewater treatment solution is the Population Equivalent or 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)
In order to know the PE range you need for your residential wastewater treatment system, you will need to count the number of bedrooms in the house. The table below gives you an idea of it:
| Number of bedrooms | Population Equivalent (PE) |
|---|---|
| 2 | 4 |
| 3 | 5 |
| 4 | 6 |
| 5 | 7 |
| 6 | 8 |
| 7 | 9 |
| 8 | 10 |
Wastewater treatment systems for residential purposes
Once you know the size of the wastewater treatment solution needed, you might choose the appropriate system. Obviously, the cost varies from one system to another.
The site assessment report offers you some recommendations adapted to your project and percolation area test result.
At Tricel, we manufacture and provide several systems:
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
Select the appropriate system
The table below gives you an idea of the different models existing for three of our solutions.
| Size in PE | Tricel Novo (wwtp) | Tricel Vitae (NI only) | Tricel Vento (septic tank) |
|---|---|---|---|
| 1-6 | IE6 or IE6+ | UK 6 | Vento 6 |
| 7-10 | IE8 or IE10 | UK 9 | Vento 12 |
| 11-12 | IE12 | UK 12 | Vento 12 |
| 13-18 | IE18 | UK 15 | Vento 20 |
| 18-24 | IE24 | UK 20 | Vento 20 |
The wastewater treatment plant Tricel Vitae is specially designed for Northern Ireland as this system has an overall efficiency of > 98.6% BOD removal during the EN12566-3 test.
Once you have all this information, our technical and sales team will be able to provide you a detailed quote. You also need to take into account the specifications of the site and the installation price.
Our wastewater treatment systems comply with the EPA’s Code of Practice 2021 for domestic wastewater treatment systems with a PE of less than or equal to 10.
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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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