Private sludge plants are roughly divided into three types. 

•  Close tank
•  septic tank
•  WWTP

Regardless of the type of system you have, it is important that the system is secured against buoyancy and installed in line with the supplier's installation instructions.

Close tank 

A sealed tank is, in principle, a container that collects sludge from the home/cottage. When it is full, it must be emptied. If not, it overflows or it hits back into drains in the home. Tight tanks are emptied every year. 

septic tank 

Sludge separators are most commonly used for ordinary residential buildings. A sludge separator works in such a way that all sludge goes into the 1st chamber of the septic tank. Furthermore, it is separated into the 2nd and 3rd chambers where the tank has an outlet. The outlet from chamber 3 goes to, for example, a filtration ditch, where the water disappears into the ground.  

When using standard emptying equipment, the entire tank is emptied before purified water is returned to the tank. When the water is flushed back, some of the sludge stuck to the bottom of the tank will loosen. This sludge will float to the surface and the tank will appear full. Of course, it is not, and this can be checked by sticking a stick into the tank. If the stick meets little resistance, there is little sludge and a lot of water in the tank. 

After emptying, the sludge is delivered to EcoPro, where through refining processes it ends up as biogas and soil improvement products.  

Sludge separators for residential buildings will normally be emptied every two years. The equivalent for holiday homes will normally be emptied every four years. If there is a need for emptying more often than this, this can be agreed with us. 

WWTP

A treatment plant is a system where the sludge is treated in the tank itself. Due to this treatment, the run-off water is very clean and can go directly into nature. However, it is a requirement in the discharge agreement that each individual treatment plant has a service agreement with a service company. This must not be confused with emptying the treatment plant, which we operate. 

The treatment plant must be marked with the manufacturer, type of plant and a reference to the updated emptying procedure, as there are different emptying routines at different plants.

If it is not recommended to return return water in the emptying procedure, it will not be done. We do not have our own clean water on the emptying truck, and in these cases the tank owner must ensure that water is topped up in line with the supplier's instructions.

Emission permit and discharge 

It is the municipality where the plant is located that issues what is called a discharge permit. The purpose of the discharge permit is to ensure that all facilities are designed in accordance with requirements. The discharge permit also describes how often the plant must be emptied. There may therefore be different intervals depending on the size of the facility and different from municipality to municipality. The discharge plans are therefore designed on the basis of the discharge permits for all facilities in ReMidt its catchment area.

Old plants often do not have their own emissions permit. In these cases, it is emptied in line with the guidelines that belong to the applicable sludge regulations.

Having trouble with the septic tank? 

There can be many reasons for this. We have tried to explain the problems that can arise and how to solve them. Below is a sketch of a typical 4 cubic meter tank with three chambers. 

Chamber 1 
The inlet enters the first chamber of the septic tank. When the septic tank works properly and has good fermentation, a "cake" on the top with solid mass is common. It is important to note that this "cake" is common and that the septic tank works without problems until the next ordinary emptying. 

Kammer 2 
In this chamber, the sludge supplied with the water from the first chamber of the septic tank is separated. 
This chamber contains considerably less sludge than in the first chamber 

Kammer 3 
From this chamber there is an outlet that carries the water in the tank into a filtration trench, 
the ground, municipal wiring or the like. This chamber contains very little sludge. 

inlets 
The pipes from the house go into the 1st chamber of the septic tank. When the toilet drops late, this may indicate 
that the pipe is tight or that it has built up mass right at the end of the inlet of the septic tank. 
Step by step solutions: 
- Make sure there is nothing in front of the inlet. 
- If it does. Take a tear to open the inlet. This can help you temporarily 
- Is it in the pipe from the house that is tight? 
Try to line up the pipe with a garden hose or wire. Contact plumber for discontinuation if necessary. 

Dive outlet 
Diving at the outlet is required by law. This is to prevent floating mud in the third chamber from flowing out of the tank. 

Level in the tank 
The level of a well-functioning septic tank should be as high as the outlet. The tank is not full, and can work well until the next round of timber. If the level is below the outlet, this may indicate that the tank is leaking. Repairs are then required. If the level is above the outlet, this may indicate that the pipe out of the tank is clogged. 

Utløp 
If a septic tank works properly, it will in the outlet from chamber 3 flow "clean" water out to a 
sand filter ditch, ground, sea or similar. If the pipes from the tank are clogged, the level will often be above the outlet. It is difficult to flush pipes that go out of the tank. This depends on the type of outlet on the tank. If the system has an infiltration system, flushing rarely helps. Then the infiltration ditch must be replaced