All the septic tanks they are an indispensable tool in certain situations. Especially in places where there is no urban drainage system. They are necessary for good waste management and that is why they must be present when circumstances demand it.

What are septic tanks and what are they for?

A septic tank is a large container used for treating domestic wastewater.

Inside this container, the separation and physical-chemical transformation of the organic matter that goes into it is carried out, although it is not done as efficiently as it is done in a treatment plant.

The need to use septic tanks comes from the absence of sewage networks in the area that can be used to evacuate waste. This is usually common in rural areas or residences that are far from the urban core.

The septic tank, taking up the story a bit, comes to replace the pit latrines that were used in the past and that posed a great risk to health by making it possible for pathogens derived from faeces to come into contact with running water underground and that it was in common use for humans and animals. In some places, these latrines still exist. 

How a septic tank works

The idea of ​​how a septic tank works is that, with the least possible flow of water, the solid part of the waste can be deposited in them, releasing the liquid part.

When this has happened, certain aerobic and anaerobic bacteria act on organic matter, decomposing it into its inorganic components and converting part of these solids into matter that is soluble in water.

This system reduces the amount of organic matter and also about 40% oxygen needed to do so. After this process, the water can be returned to nature with less risk to it.

Then, the remaining solid part must be removed from time to time, generally every one or two years, maybe more, depending on the type of pit and the number of users who use it. What is removed must be taken to a place where it can be treated correctly.

Regulations governing the installation of septic tanks

Septic tanks, according to the directives for the protection of the environment, are subject to regulation in the territory of the European Community. They are required to be reviewed and emptied from time to time, depending on their own characteristics, their location and their design.

The process for the removal of the content must be carried out by specialized companies such as industrial cleaning companies that have the corresponding certifications and authorizations.

The waste obtained must be processed in the corresponding facilities, according to the legislation. The most common is that the treatment plants take care of this. Final waste must be disposed of in a way that is also regulated by legislation in competent official bodies.

In any case, it must be taken into account that this regulation can be improved through municipal, regional or state ordinances.

Our septic tank models

Epurbloc septic tanks

This model of septic tank has been manufactured by extrusion-overlapping, which guarantees its tightness and also its permeability. Qualities that have been proven through different tests and very strict quality controls. In all our septic tanks these procedures are carried out to guarantee a perfect operation without risks, and also a good conservation.

The material we have used for its construction is virgin high-density, high-molecular-weight polyethylene, a high-molecular-weight copolymer that has been specifically designed for the manufacture of hollow bodies or large-capacity containers.

SOTRALENTZ brand Epurbloc septic tanks are available in different capacities:

-          1.500 with biological filter for between 3 and 5 inhabitants.

-          2.000 with biological filter for between 4 and 6 inhabitants.

-          3.000 with biological filter for between 6 and 8 inhabitants.

-          4.000 with biological filter for between 8 and 12 inhabitants.

Septic tanks FS

This FS septic tank model, whose manufacturer is SOTRALENTZ, has been manufactured under the same conditions as the previous model. It has been designed through an extrusion-overlapping process that guarantees the watertightness and impermeability of the product, characteristics that have been tested through strict controls.

The difference with the previous ones, the Epurbloc, is that they do not have a biological filter integrated in the outlet device. There are also different septic tanks according to their capacity:

-          FS 1.000 for between 2 and 4 inhabitants

-          FS 1.500 for between 3 and 5 inhabitants

-          FS 2.000 for between 4 and 6 inhabitants

-          FS 3.000 for between 6 and 8 inhabitants

Total oxidation septic tank

This model of septic tank It is an ecological total oxidation treatment plant. It is ideal for treating the domestic wastewater of small and medium-sized communities. These total oxidation equipment comply with the current regulations of the Royal Decree 606/2003 discharge that modifies the Water Law, as well as the European regulations.

The purification system is carried out following three stages: roughing, biological oxidation and decantation. 

In roughing the coarse solids that the water has dragged are collected by a grate that is located at the entrance of the equipment. When it comes to small populations, due to the variability of the affluent, the installation of a previous decanter is recommended.

In the biological oxidation process in the biological reactor, the biological decomposition of matter occurs thanks to both the air and the generation of aerobic microorganisms.

Finally, in the decantation, the resulting sludge is deposited inside the decanter, then it is recirculated back to the redactor by pumping in different models.

We have several models of total oxidation septic tanks in our catalogue: Epanbloc and Actibloc by SOTRALENTZ or Necor and Rox by REMOSA.

Any questions you have, you can consult with us and we will advise you without any kind of commitment. Remember that, in addition to the septic tanks themselves, we also have all kinds of accessories.

All these items are shipped with free postage for shipments to the peninsula, and we also have these items at the best price such as: urban garden accessory, nebulization in irrigation, Water pipe o drip irrigation