This report presents the best wastewater treatment methods, i.e. the different types of devices you may need to install.

UK wastewater treatment laws currently require all wastewater coming from a residence to be treated. This includes black water (urine, excreta and flushing water) and water from household activities (cooking, crockery, personal hygiene, etc.).

Why is it necessary to treat wastewater?

best-wastewater-treatment-methodsThe first objective of wastewater treatment is to reduce the sanitary and environmental pollution caused by wastewater from dwellings not connected to the sewer system.

This pollution is divided into three components:

  • Physical and particulate pollution: solid waste found in domestic effluents such as sand, grease or suspended solids (SS) presents a risk of mortality for animals that are likely to ingest them and a risk of clogging the natural environment.
  • Physico-chemical pollution: wastewater is also loaded with toxic elements that are harmful to the environment and human health in the long term.

These elements can, for example, cause the excessive development of phytoplankton, algae and plants that can create an imbalance in the ecosystem.

  • Biological pollution: wastewater contains pathogens such as bacteria, viruses and parasites. These elements are dangerous for your health.

To avoid these risks, the law requires domestic effluents to be treated before discharging them into the natural environment.

Best Wastewater Treatment Methods

Two different technologies that can be used to treat your wastewater which also meet the new septic tank regulations due to be introduced in 2020 are the compact filter and the domestic sewage treatment plant. In this report we will look at how these two methods work and the advantages of each.

The compact filter

The treatment with a compact filter is essentially based on filtration with a natural medium such as coconut fibre.

This media serves as a substrate that physically filters organic matter and as a carrier for purifying bacteria that can digest pollutants in wastewater.

At the outlet of the compact filter, the treated water can be discharged to the outlet.

The advantage of this technology is its total passiveness. Indeed, it does not need energy to operate. In addition, the filter media used is completely natural.

The domestic sewage treatment plant

The domestic sewage treatment plant is also based on the biological treatment of wastewater. It is equipped with an all-water tank in which the solid and liquid elements are separated.

In a second compartment, the water is purified by aerobic bacteria that grow there when it is oxygenated by an air compressor.

After the settling and biological treatment phase, the water is discharged to the outlet of the tank, in accordance with sanitation regulations.

This technology is highly appreciated for its high compactness, but also for its high purifying efficiency.

In summary, it is important to treat your wastewater for health and environmental reasons. Among the best individual sanitation technologies, you can choose the compact filter and the domestic sewage treatment plant, simply because these two devices are currently the most compact and efficient on the market.