Rivendite

CHAMBERS

INFINITANK SEPTIC TANKS

Material:
corrugated modular container in LLDPE with PVC inlet and outlet pipes and PE sedimentation chamber. Manufactured according to standard UNI-EN 12566-3. The Table 3 of Law Decree 152/06 specifies the limits for delivery to public sewers. The sizing proposed make it possible to reach a retention time of 2-3 hours at mean flow rate in the sedimentation compartment, thus enabling the removal of the solid and organic components required by law. The application shall be assessed by the public sewer service operator.

Application:
primary treatment and anaerobic digestion of wastewater coming from residential buildings.

Use and maintenance:
designed to provide primary sludge storage for a minimum period of 4-5 months of plant operation. A minimum of 1-2 inspections per year by qualified personnel and eventual emptying operations must be programmed according to 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 obstructing the effluent inlet and outlet pipes and the outlet of the sedimentation chamber.

Installation: please follow underground installation instructions provided by Rototec.

IMHOFF BIOLAGICAL TANK

Material:
corrugated/smooth container and sedimentation chamber in one-piece LLDPE with PVC inlet and outlet pipes. Manufactured according to standard UNI-EN 12566-3. The Table 3 of Law Decree 152/06 specifies the limits for delivery to public sewers. The sizing proposed make it possible to reach a retention time of 2-3 hours at mean flow rate in the sedimentation compartment, thus enabling the removal of the solid and organic components required by law. The application shall be assessed by the public sewer service operator.

Application:
primary treatment and anaerobic digestion of wastewater coming from residential buildings.

Use and maintenance:
The Imhoff tanks are designed to provide primary sludge storage for a minimum period of 4-5 months of plant operation. A minimum of 1-2 inspections per year by qualified personnel and eventual emptying operations must be programmed according to 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 obstructing the effluent inlet and outlet pipes and the outlet of the sedimentation chamber.

Installation: please follow underground installation instructions provided by Rototec.

OIL SEPARATORS

Material:
smooth/corrugated tank and sedimentation chamber in LLDPE, one-piece  structure, fitted with PVC inlet and outlet pipes. Designed for gravity separation of solid materials and oil particles up to 150 µm. Sized according to UNI-EN 858-1 and UNI-EN 858-2, class two oil separator. The version with coalescing filter complies with standard UNI-EN 858-1 and UNI-EN 858-2, class one oil separator fitted with removable coalescing filter made of polyurethane sponge, steel and PVC.

Application:
designed for treating surface runoff from uncovered/covered drainage areas with presence of heavy sediments, mineral oils and hydrocarbons and discharge to public sewer. Designed for treating surface runoff from hardstandings with minor presence of heavy sediments, mineral oils and hydrocarbons and discharge to public sewer. In case of uncovered area, the flow rate is calculated considering a rainfall of 20 mm/h and a unit runoff rate.

Use and maintenance:
an excessive accumulation of floating material causes a reduction in the volume available for separation. This risk worsens in the  presence  of  considerable  quantities  of  sedimentable  substances that settle at the bottom of the plant. To prevent the escape  of  solids  and  mineral  oils  that  could  compromise  the quality of the discharged effluent, it advisable to carry out frequent  inspections  and  removal  of  the  accumulated  pollutants every 6-8 months. These operations should be more frequent if the plant receives effluent from vehicle workshops, oil storage areas or vehicle washes. The deposits must be removed by specialised personnel and subjected to the appropriate treatment. As far as maintenance of the coalescing filter oil separators is concerned, in addition to the normal emptying, it is also advisable to remove the sponge support and wash it thoroughly upstream of the plant.

Installation: please follow underground installation instructions provided by Rototec.

OFFLINE TREATMENT OF STORMWATER RUNOFF

Material:
Offline treatment of stormwater runoff sized in accordance with Lombardy Regional Law n°62 of 27th May 1985 consisting of underground modular tanks in LLDPE produced by rotomoulding and PVC pipes. The plant includes a flow splitting chamber, a modular storage system/grit separator with automatic shut-off valve and timed submersible pump, a grit and an oil separation system with coalescing filter sized according to UNI-EN 858-1 and complying with the requirements of D.lgs 152/2006.

Use:
Treatment of stored stormwater runoff from impermeable areas with presence of mineral oils, hydrocarbons and heavy sediments coming from vehicules parks placed in industrial and residential areas as well as service stations.

Application:
the runoff water coming from impermeable transit areas flow to the treatment system, which is sized to treat the first 5 mm of rainfall. Once the storage tank has been filled, a shut-off valve activates the bypass which sends the secondary and not-polluting rainwater to the storage tank. The stored and polluted rainwater is evacuated by a submersible pump controlled by an electric panel that regulates the emptying of the storage tank in such a manner that 48/72 hours after the rainfall, the system is ready for a new operating cycle. This step is required in order to avoid overloading the urban drainage system and to ensure that only the rainwater producing a potentially polluted runoff flow is treated. The runoff water is consequently sent to the grit and oil separators. The last stage of the treatment is defined according to the discharge: a gravity oil separator is foreseen in case of a public sewer, while in case of a surface watercourse the treatment plant consists of a coalescing filter oil separator.

Installation: please strictly follow the “installation instructions” provided by Rototec.

INFINITANK TREATMENT OF STORED STORMWATER RUNOFF

Material:
Treatment of stored stormwater runoff sized in accordance with Lombardy Regional Law n°62 of 27th May 1985 consisting of underground modular tanks in LLDPE produced by rotomoulding and PVC pipes. The plant includes a flow splitting chamber, a modular storage system/grit separator with automatic shut-off valve and timed submersible pump, a grit and an oil separation system with coalescing filter sized according to UNI-EN 858-1 and complying with the requirements of D.lgs 152/2006.

Use:
Treatment of stored stormwater runoff from impermeable areas with presence of mineral oils, hydrocarbons and heavy sediments coming from vehicules parks placed in industrial and residential areas as well as service stations.

Application:
the runoff water coming from impermeable transit areas flow to the treatment system, which is sized to treat the first 5 mm of rainfall. Once the storage tank has been filled, a shut-off valve activates the bypass which sends the secondary and not-polluting rainwater to the storage tank. The stored and polluted rainwater is evacuated by a submersible pump controlled by an electric panel that regulates the emptying of the storage tank in such a manner that 48/72 hours after the rainfall, the system is ready for a new operating cycle. This step is required in order to avoid overloading the urban drainage system and to ensure that only the rainwater producing a potentially polluted runoff flow is treated. The runoff water is consequently sent to the grit and oil separators. The last stage of the treatment is defined according to the discharge: a gravity oil separator is foreseen in case of a public sewer, while in case of a surface watercourse the treatment plant consists of a coalescing filter oil separator.

Installation: please strictly follow the “installation instructions” provided by Rototec.

INFINITANK CONTINUOUS TREATMENT OF STORMWATER RUNOFF 

Material:
continuous  treatment  of  stormwater  runoff  consisting  of LLDPE modular tank, one-piece structure, with PVC inlet and outlet pipes and NBR rubber gaskets, including flow  splitting  chamber, grit  and  oil  separators  with  coalescing  filters sized according to UNI-EN858-1 and complying with requirements of Reg. Lombardia L.R. 27 maggio 1985 n. 62.

Application:
The  plant  allows  the  continuous  treatment  of  stormwater  runoff from  impermeable  surfaces  up  to  10000 m2  used  for  transit  or parking in industrial areas, residential zones and service stations subject  to  possible  pollution  from  mineral  oils,  hydrocarbons, sand/grit  and  inert  materials.  The  stormwater runoff  treatment system makes use of the action of a grit and oil separator in continuous operation capable of treating flows of up to 40 l/s. Runoff from impermeable transit areas must be carried to the treatment system. The treatment tanks receive the flow appartaining to first 5 mm of rain falling over a 15 minute period. For higher flows, the bypass is activated which sends the excess to the stormwater storage tanks. The treatment plant consists of a grit separator and an oil separator with coalescing filter, thus ensuring that the final effluent possesses the appropriate characteristics for discharge to a body of surface water.

Use and maintenance:
the grit, oils and other light liquids transported by stormwater runoff accumulate inside the tanks during the normal exercise of the plant. These accumulations become excessive over time and tend to affect the efficiency of the purification. For this reason, it is essential to carry out periodic inspections of the tanks and, if necessary, proceed with purging and cleaning. The frequency of such operations depends on the pollutant load of the effluent. As regards the coalescing filter, it is necessary to pull it out periodically and wash it with a strong jet of water. The purging must be carried out by competent and authorized companies as the effluent is considered hazardous waste and must be treated as such.

Installation:
please strictly follow the “installation instructions” provided by ROTOTEC.

INFINITANK STORAGE TANKS

Application: tanks for storage of potable water, rainwater or other liquids for human consumption. Thanks to the high resistance and low reactivity of linear high density polyethylene, the underground tanks can be used for the storage of large volumes of liquids (see Compatibility of PE with other fluids).

Use and maintenance: the tanks are not subject to deterioration over time. The materials used assure utmost reliability against oxidation or corrosion. Their mono-block structure guarantees robusticity and strength as they are free of welds that could weaken those parts subjected to internal stresses. Tanks can be bored when the need arises. The smoothness of their surface results in an easy maintenance and their lightness in simple transport and installation. Furthermore, their cost is much lower than that of other materials such as metal, cement and fibreglass.

Modularity: Thanks to the installation of PE flanged joints, different tanks can be connected to provide higher storage volumes.

Available colours: black and grey.

Installation: underground installation instructions provided by ROTOTEC.

WARNINGS:
The tanks must not, under any circumstances, be installed above ground; prior to installation, carefully check the integrity of the tanks and tightness of the gaskets; do not install the tanks near to sources of heat; the tanks must be positioned on a flat stable surface; when installing the tanks make sure that no light can filter in so as to prevent the formation of algae; use flexible hoses when connecting to the water system in order to prevent stresses during tank filling and emptying; do not leave the tank without its cover for any length of time; in case of rainwater storage, it is advisable to install a leaf filter chamber upstream of the tank to prevent a build-up of grit, silt, leaves, etc inside the tank; for storing fluids not expressly indicated in this catalogue (see page 68), please contact the technical office.

UNDERGROUND TANKS

Application:
tanks for storage of potable water, rainwater or other liquids for human consumption. Thanks to the high resistance and low reactivity of linear high density polyethylene, the underground tanks can be used for the storage of large volumes of liquids (see Compatibility of PE with other fluids).

Use and maintenance:
the underground tanks are not subject to deterioration over time. The materials used assure utmost reliability against oxidation or corrosion. Their mono-block structure guarantees robusticity and strength as they are free of welds that could weaken those parts subjected to internal stresses. Tanks can be bored when the need arises. The smoothness of their surface results in an easy maintenance and their lightness in simple transport and installation. Furthermore, their cost is much lower than that of other materials such as metal, cement and fibreglass.

Modularity:
Thanks to the installation of PE flanged joints, different tanks can be connected to provide higher storage volumes.

Available colours:
black and grey.

Installation: underground installation instructions provided by ROTOTEC.

WARNINGS:
The underground tanks must not, under any circumstances, be installed above ground; prior to installation, carefully check the integrity of the tanks and tightness of the gaskets; do not install the tanks near to sources of heat; the tanks must be positioned on a flat stable surface; when installing the tanks make sure that no light can filter in so as to prevent the formation of algae; use flexible hoses when connecting to the water system in order to prevent stresses during tank filling and emptying; do not leave the tank without its cover for any length of time; in case of rainwater storage, it is advisable to install a leaf filter chamber upstream of the tank to prevent a build-up of grit, silt, leaves, etc inside the tank; for storing fluids not expressly indicated in this catalogue (see page 68), please contact the technical office.

ABOVE GROUND TANKS

Application:
tanks for storage of potable water, rainwater or other liquids for human consumption. Thanks to the high resistance and low reactivity of linear high density polyethylene, the above ground tanks can be used for the storage of large volumes of liquids (see Compatibility of PE with other fluids).

Use and maintenance:
the above ground tanks support sudden changes in temperature (from -20 to + 80 °C) and are not subject to deterioration over time. The materials used assure utmost reliability against oxidation or corrosion. Their mono-block structure guarantees robusticity and strength as they are free of welds that could weaken those parts subjected to internal stresses. Tanks can be bored when the need arises. The smoothness of their surface results in an easy maintenance and their lightness in simple transport and installation. Furthermore, their cost is much lower than that of other materials such as metal, cement and fibreglass.

Available colours:
standard: blue; on demand: green, terracotta and grey.

WARNINGS:
The above ground tanks must not, under any circumstances, be installed underground; prior to installation, carefully check the integrity of the tanks and tightness of the gaskets; do not install the tanks near to sources of heat; the tanks must be positioned on a flat stable surface; when installing the tanks make sure that no light can filter in so as to prevent the formation of algae; use flexible hoses when connecting to the water system in order to prevent stresses during tank filling and emptying; do not leave the tank without its cover for any length of time; for storing fluids not expressly indicated in this catalogue (see page 68), please contact the technical office.