Types of Sewage Treatment Plants; a cosy home surrounded with a white picket fence

3 Types of Sewage Treatment Plants You Need to Know About


Author: Alex
Date: 31 May 2022

For any property that cannot connect to the main sewer system, having the right type of sewage treatment plant is essential.

Since upgrades like Whisspurr ensure to eliminate noise pollution, your treatment plant doesn’t have to be installed miles away. However, with different types of sewage treatment plants, how do you find the right type? 

If this is something you’re concerned about, we’ve got you covered.

As experts we’ve listed some of the common types of sewage treatment plants that are found in both domestic and commercial spaces.

Based on what you’re looking for, you can find the right treatment plant for your needs. 

Let’s take a look!

1. Activated Sludge Plant (ASP)

Types of Sewage Treatment Plants; a network of pipes

One of the most common plants found in the UK to treat wastewater is the activated sludge plant. This treatment plant is primarily made of two major components –  a biozone chamber and a settlement chamber.

When it comes to the systems working, the wastewater produced by the property enters the system and goes directly into the biozone. In this area, the air diffuser provides the bacteria with oxygen to keep them alive so that the bacteria can work on breaking down the sludge. The treated sludge then enters the settlement zone where the solids in this effluent settle at the bottom of the tank. After this, they’re redirected to the biozone whereas the treated effluent is released from the system. 

Since they have no electrical or mechanical parts inside, they’re a low-cost solution. When it comes to maintenance, you need to get it checked once every six months, however, this also more or less depends on what type and model you have purchased. Vortex, Crystal Eco, WPL Diamond, and BioPure are a few popular types of ASP plants you can consider for your property.

One downside when it comes to this system is that since the air diffuser runs most of the time, the power consumption may be higher than other systems.

2. Rotating Disc System 

A rotating disc system is a robust type of sewage treatment plant that produces high-quality effluent. Most homes that have a sewage treatment plant installed usually have a rotating disc system making it one of the most recognisable plants in the UK.

This type of plant has a biodisc inside which is a big media disc which houses most of the bacteria, making it similar to a non-electric system. The waste produced from the property enters the primary settlement chamber of the plant where the solids settle at the bottom.

The wastewater then flows into the biodisc where the bacteria live to help further clean the effluent. The solids return to the settlement chamber and the effluent further moves to another biodisc for another round of treatment. After this, the effluent is then discharged out of the tank.

Some of the best rotating disc plants are from Tuke and Bell, Klargester Biodisc and Clearwater Rotoclear. These plants only need to be desludged every 12-18 months and offer minimal noise pollution. However, with the introduction of Whisspurr, this can easily be taken care of.

The downside to this system is maintenance costs. Since there are a lot of electrical and mechanical components, if there are any damages due to a lack of maintenance, you’ll need to pay for replacement parts.

3. Submerged Aerated Filter

a person measuring the distance between two wood planks

Another option to consider when looking for different types of sewage treatment plants for your property is the submerged aerated filter system. This type of system usually has three chambers and uses both media and aeration to treat the wastewater.

In a submerged aerated filter treatment plant, the wastewater enters the primary settlement chamber first. The solids settle at the bottom of the chamber after which the effluent flows to the secondary chamber, also known as the biozone. This is where both media and aeration are combined.

The media houses the required bacteria which break down the waste after which it is moved to the third chamber where the sludge is returned to the first settlement and the waste can be further treated.

This type of sewage plant requires a constant power supply for the compressor to run. However, maintenance is easier due to the fewer mechanical or electrical parts.

Whisspurr – For A Quiet Sewage Treatment Process

With so many different types of sewage treatment plants in the UK, find the right one for your home easily. However, to achieve a quiet sewage treatment plant, Whisspurr is the perfect solution for you.

This Acoustic Vibration Reduction (AVR) unit can significantly reduce the noise pollution produced from your sewage system, to ensure a silent sewage treatment process. 

To place an order or for any enquiries, get in touch with us today!