The best way to treat wastewater in a private home is to use a local wastewater treatment plant such as a septic tank or an autonomous sewage system. Sewerage septic tanks are completely different, I advise you if you want high-quality wastewater treatment, do not use cheap septic tanks. After all, it is the septic tank that plays a role in the quality of the wastewater treatment.

Which sewage system is best suited for a private house

Installing a sewage system in a private house requires careful preparation. The owner needs to decide on both the project budget and the type of treatment plant. It is important to understand that it is better if the process of designing and arranging the sewage system is carried out only once, and since you will have to live in a country house for many more years, then the price of an error in choosing is too high.
It is extremely important to correctly determine the installation site of the sewerage system, including both inlet and outlet trenches, and filtration fields, if such are provided for by the design of the selected type of treatment plant.
According to the existing rules, the filtration field must be located at a distance of at least 30 meters from the source of drinking water and at least five meters from the foundation of the house or outbuildings.

Where to order the construction of treatment facilities

If you want to create a high-quality sewage treatment plant, I advise you to install a grease trap under the sink, it plays an important role in the treatment of wastewater in a private house.
It is very difficult to calculate the cost of construction of treatment facilities, because the price depends not only on the cost of work on the design and installation of local treatment facilities.
The cost also depends on what kind of equipment you choose, whether it will be stations and treatment systems of economy class or premium. You need to look for an answer to this question in a company that will install sewage treatment plants for your home.