PREFABRICATED SYSTEMS

Waste Treatment

Septic tanks are a series of chambers in which organic wastewater from homes and other sanitary facilities is retained, settled, and subjected to anaerobic bacterial cultivation.
They are manufactured from linear polyethylene [HDPE] using the rotation molding method, are completely watertight, are not affected by sewage, and have an unlimited lifespan. The appropriate configuration of the septic tanks ensures that the sewage entering through the inlet flows slowly and evenly so that the solids are separated by settling at the bottom of the septic tank and the floating of fats and light solids on its surface. The arrangement of the two chambers prevents the passage of sludge and floating matter between them. Their installation requires minimal time without the need for special equipment, while their operation does not require an electrical supply.
The technical characteristics of septic tanks are specified in the applicable Joint Ministerial Decisions.
The capacity of a septic tank for ordinary residences is specified at 300 liters per person, and is calculated at a rate of 1.5 occupants per main room of the residence. Corresponding capacities are specified for larger facilities such as apartment buildings, hotels, schools, etc., while the minimum capacity of a septic tank can be 2000 liters.
The installation and maintenance of septic tanks is governed by the applicable Joint Ministerial Decisions, and sludge should be emptied once every 1-2 years.
In the case of restaurants and other similar establishments, an additional grease trap must be installed upstream of the septic tank.