BIOLOGICAL SEPTIC TANKS

Material:
corrugated/smooth tank in LLDPE, one-piece structure, with PVC inlet and outlet pipes. Manufactured and sized according to standard UNI-EN 12566-1. The Legislative Decree n°152/2006 goes back to the Interministerial Committee on water protection (supplemento ordinario alla G.U. n. 48 del 21/02/77 par. 4), requiring average volumes of 120-150 I/A.E.

Application:
primary treatment of wastewater coming from residential buildings.

Use and maintenance:
an excessive accumulation of putrescible material at the bottom of the tank can cause uncontrolled anaerobic digestion phenomena, leading to an over-production of biogas and the development of malodorous emissions. Furthermore, the reduction in the volume available in the digestion compartment and the excessive production of gas bubbles will cause the settled material to rise, thus causing deterioration in the quality of the treated effluent. For this reason, 1 to 4 inspections per year by qualified personnel and eventual removal of the surface crust and accumulated sludge must be programmed in accordance with the loads fed to the tank. Once the settled sludge has been removed, the internal surfaces of the tank must be cleaned in order to eliminate any material that could obstruct the effluent inlet and outlet pipes.

Installation: please follow underground installation instructions provided by Rototec.

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