Infinitank one-piece structure actived sludge Treatment

Material: modular tank for underground installation and sedimentation chamber in linear high-density polyethylene (LLDPE). Fitted with inlet and outlet pipe in PVC, blowers and micropore plates for air distribution. Subdivided in two sections for sludge settling and biological oxidation.

Application:treatment of domestic wastewater by means of primary sedimentation and anaerobic digestion of sludge in biological tanks and subsequent secondary activated sludge aerobic digestion. Rototec’s one-piece structured treatment plant is sized for an average domestic effluent with a daily load factor of 200 l/AE  and a daily organic pollution of 60gBOD/AE per person. It is of major importance to separate oils and foams upstream of the activated sludge tank as they could adversely affect the treatment efficiency which accounts up to 90% under regular conditions (percentage of reduction of the organic load as per BOD5). The treated effluent complies with the emission limits described in Table 3 of Law Decree 152/2006 for discharge into surface water courses.

Use and maintenance: it is advisable to inspect the tank at least once a year and to proceed with any necessary extraction of the sludge which is mainly accumulating in the primary sector but also in the activated sludge chamber. The cleaning will be performed by extracting a part of the excess sludge, removing accumulations on inlet and outlet pipes and cleaning the air diffusers in order to prevent possible clogging. Periodically check the operation of the blowers-compressors.

Carefully follow the “INFINITANK INSTALLATION INSTRUCTIONS” supplied by ROTOTEC.

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