PRODUCT COMPLIES WITH THE STANDARD PN-EN 12566-3+A2:2013-10
Dimensions
- Height: 190 cm
- Width: 145 cm
- Length: 280 cm
- Inlet 100 cm from bottom
- Outlet 87 cm from bottom
- Standard superstructure 25 cm

Diagram
- Primary settling tank
- Rotating biological bed
- Secondary settling tank
- Gearmotor
- Drive belt
- Cover
- Raw sewage inlet DN160
- Treated sewage outlet DN110
- 3-inch cone connection for emptying from primary settling tank
- 2-inch cone connection for emptying from secondary settling tank
- Partition
DESTINY
The RotoClean domestic biological wastewater treatment plant is an innovative treatment plant using rotating biological bed technology. Ideal for installation in locations without access to sanitary sewerage. The unique design and shallow inlet positioning allows installation in any soil and water conditions. The RotoClean unit consists of a horizontal, reinforced tank divided into a primary settling tank, biological section, and a separate secondary settling tank chamber. The treatment plant is resistant to power supply interruptions, temperature fluctuations, and temporary lack of sewage inflow. A slow-speed gearmotor with dosing control is responsible for providing rotational movement to the biological bed.
OPERATION DESCRIPTION OF THE RotoClean DOMESTIC SEWAGE TREATMENT PLANT
The operation of the treatment plant is based on the work of the primary settling tank, rotating biological bed, and secondary settling tank. On the rotating bed, due to rotational movement and continuous immersion and emergence, a biological film (biofilm) is formed, which enables the reduction of pollutants contained in the wastewater. Wastewater flowing through the bed is treated and then flows to the secondary settling tank. There, final clarification of the wastewater occurs. Treated wastewater, free of biological film residues, flows out of the treatment plant.
PHASE I
PHASE II
PHASE III
Mechanically treated sewage is dosed through a special cup-portioning system into the biological chamber.
PHASE IV
A constantly rotating biofilm immerses and emerges from the wastewater. This allows the bacteria, concentrated in a biofilm, to absorb oxygen from the atmosphere and nutrients from the wastewater.
PHASE V
The treated wastewater then flows into the secondary settling tank. In the secondary settling tank, the biofilm fragments and suspended solids that have become detached from the biofilm are retained and either sink to the bottom or float to the surface.
PHASE VI
WASTEWATER TREATMENT EQUIPMENT
• Three-chamber treatment tank – 1 pc.
• Cover – 1 pc.
• Geared motor with drive system – 1 pc.
Treatment plants must be transported in a horizontal position (inspection chimneys positioned vertically) and must be properly secured with securing straps. The customer/buyer should participate in unloading – the device should be inspected. Care should be taken when moving the tank. The treatment plant should be lifted using a rope or sling passed through the handles attached to the tank, or from below using a forklift. The tank should be carefully lifted from the delivery vehicle and placed on level ground. Do not roll the treatment plant off the delivery vehicle.
Tanks must not be thrown and should not be dragged on the ground. In the upper part of the treatment plant there are handles to which securing straps can be attached.
When choosing the installation location, the type of soil and groundwater level should be determined, as soil conditions will have a significant impact on determining the type of backfill and installation conditions. When planning the installation location, remember to ensure access for service vehicles during installation and later operation.


Furthermore, the distance of the settling tank that comprises the domestic wastewater treatment plant (for single-family, farm, individual recreation buildings) from the property boundary and public road should be at least 2 m. From windows and external doors to rooms intended for permanent human occupancy, the distance should be no less than 5 m
(in direct vicinity of single-family buildings). The distance for locating infiltration trenches and drainage fields should be 30 m from wells, 2 m from neighboring property boundaries, roads (streets) or pedestrian paths. A domestic treatment plant can be built in direct vicinity of single-family buildings, provided its ventilation is routed through the sewerage system at least 0.6 m above the upper edge of windows and external doors in these buildings.

An important criterion determining the location of a domestic wastewater treatment plant is the distance from water intakes. The treatment plant tank should not be installed closer than 15 m from the nearest well. The distance of infiltration drainage from water intakes should be at least 30 m, and the groundwater level must be at a depth of 1.5 m below the treated water discharge system. Maintaining such distances is conditioned by the possibility of pathogenic microorganisms penetrating water intakes. Importantly, the above distances apply to all water wells intended for human consumption – both on the property where the domestic wastewater treatment plant is to be located and on neighboring properties.

An important condition for using infiltration drainage is having soil with appropriate permeability and groundwater occurrence at least 1.5 m below the planned position of the wastewater infiltration drainage. Otherwise, it may be necessary to install a sewage pumping station and construct drainage in the form of an embankment.
Note! The treatment plant should be located in non-vehicular terrain with access for sewage trucks.
INSTALLATION OF THE HDPE SETTLER
General rules
To maintain the good condition of the appliance and its operation, follow this instruction manual and its attachments. Incorrect installation may affect the improper operation of the treatment plant. The excavation and installation of the treatment plant should be carried out by a specialized contractor.
Never enter an unventilated tank – LIFE HAZARD!
Make sure that the ground around the treatment plant does not have factors that may have a negative impact during and after installation (guarantee a stable position, keep a safe distance from buildings).
Do not work in heavy rainfall (risk of trench collapse).
Soil subsidence must be taken into account in all assembly work.
After installing the tank and after each service inspection, check that the inspection hatches are closed and properly protected against opening.
We make a trench for a clarifier with dimensions in a floor plan 0.5 – 1.0 m larger than the dimensions of the settling tank. The minimum width of the backfill is 50 cm on each side of the tank.
We make sand ballast with a thickness of min. 30 cm and thicken to at least 85% (according to the Proctor scale).
We lower the tank into the trench, level and make the first layer of 30 cm of sand backfill in order to stabilize it and compact it to min. 85% according to the Proctor scale.
Check the position of the aeration diffusers. They should lie flat on the bottom of the tank.
After leveling and stabilizing the tank, we make backfilling in layers every 30 cm with its simultaneous compaction to the level of the drain spigot according to the proportions and degree of compaction as above. In each layer of filling, the clarifier should be filled with water to the level of backfilling. Particular attention must be paid to the thorough filling of all the cavities of the tank with material and the strong compaction of the layers, so that there are no voids in the backfill, which will guarantee the stability of the tank.
After making the backfill and compacting it, connect the inlet and drain ports, connecting it simultaneously with the distribution manhole.
We install the DN 650 extension, adjusting the height to the expected level of the ground (terrain) and finish the backfill with compaction. When installing the extension, it is imperative to seal the connection point with a special tank designed for this purpose with glue (e.g. Wurth glue + sealant) or another suitable sealant and then screw it with screws (e.g. Farmer type). The tank cover should not exceed 120 cm.
After the installation of the clarifier is completed, a leak test must be carried out.
After completing the above-mentioned works, we proceed to the installation of the drainage.
10. After the excavation is made, depending on the type of soil, we make a protective layer with simultaneous installation of drainage pipes and, if necessary, a supporting layer and covering it with geotextile.
After installing the device and putting it into operation, it is very important to check the correct arrangement of the diffusers located in the biological treatment zone. The biological reactor hatch must be opened and, if necessary, the diffuser should be lifted and laid flat on the bottom, which will ensure that the wastewater is aerated evenly.
Compliance with the manufacturer's guidelines will ensure the stability and functionality of the treatment plant tank and its proper behavior in the trench. Slight deformations of the tank result from the properties of the material used and do not affect the proper operation of the treatment plant. A deformation of the tank of not more than 5% is allowed.


- installation depth 55 - 110 cm
- maximum line length - 24.0 m
- distance between lines 1.0 - 3.0 m depending on soil category
- drainage slope 0.5 - 1.0%
- excavation width at bottom min. 0.5 m
- groundwater level min. 1.5 m below drainage bottom

INSTALLATION VENTILATION
- To ensure proper operation of the treatment plant, the building should have high ventilation of at least DN 110 as sewerage ventilation.
- The outlet of the ventilation pipe removing vapors should be routed above the building roof.
- Ventilation should run in a straight line, without bends or constrictions, taking into account and sealing all inspection objects to enable proper and effective operation.
- In case of installing the system at a greater distance from the building, or in case of lack of high ventilation in the building, additional ventilation should be installed on the building facade and routed to a height of at least 50 cm above the roof ridge.
- If installing additional external ventilation on a residential building is impossible for various reasons, neighboring buildings or other structures should be used.
- Infiltration drainage should be ventilated using an exhaust vent at the end of each drainage line - so-called low ventilation.

Safe device construction was achieved by eliminating moving parts. Therefore, electric pumps are not used in RotoClean construction; the monolithic tank made of polyethylene (PE) ensures device tightness.
The RotoClean biological treatment plant has CE marking – It has been tested by a notified testing body for compliance with PN-EN 12566-3+A2:2013-10 – therefore our treatment plants ensure high treatment efficiency confirmed by testing.
Low sensitivity to power supply interruptions – In case of power failure, the control system adapts treatment phases to the amount of wastewater flowing to the treatment plant and activates the appropriate phase depending on accumulated wastewater.
The treatment process is automated – Allowing control over the treatment cycle, additionally the control system automatically adapts to the amount of wastewater inflow.
Ability to set the treatment plant to standby mode – Allows maintaining the treatment process even without wastewater inflow for up to 2 weeks.
Easy and inexpensive expansion – Thanks to modular construction, expansion involves adding an additional tank without the need to replace all treatment plant components.
Treatment in the RotoClean biological wastewater treatment plant occurs without the need for biopreparations.
Long service life and reliability – PE tanks are made monolithically, additionally reinforced inside the tank with steel reinforcement.
The treatment plant does not require a large land area for installation.
RotoClean biological treatment plant tanks and elements inside them are 100% recyclable and allow reuse of raw materials.
The device is energy-efficient – allows saving money and protecting the environment.
By treating wastewater, we protect the valuable resource that is water.
- Single and multi-family homes,
- Holiday resorts,
- Small businesses
Product data RotoClean
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