Однокорпусное очистное сооружение для канализации BioBox Mega 80 (энергонезависимое)

**Title:** Three-chamber treatment plant for domestic and industrial sewage, 50m3 (50000l), capacity 16000 liters per day.
**Description:**
Energy-independent sewage treatment plants BioBox®-SO80 are autonomous energy-independent treatment facilities designed for mechanical and biological treatment of industrial and domestic sewage.
Three manholes with tight screw caps with a diameter of 800 mm are provided for servicing the chambers.
The standard version comes with 500 mm high manholes for installation in the ground at a depth of 600 to 700 mm from the ground surface to the inlet sewer pipe (septic tank inlet).
Three-chamber sewage treatment systems are required when the plant capacity is more than 5 m3 per day. Up to 5000 liters, 2-chamber treatment facilities should be used.
Depending on the depth of the supply pipeline, the treatment systems are supplied with different heights of service wells:
• Manhole 500 mm — supply pipeline depth 600-700 mm.
• Manhole 1000 mm — supply pipeline depth 1100-1200 mm.
• Manhole 1500 mm — supply pipeline depth 1600-1700 mm.
• Manhole 2000 mm — supply pipeline depth 2100-2200 mm. (Reinforced version of the «Premium» series with a 20% reinforced body).
**Selection of the volume of the treatment plant**
*For a private house*
When choosing an installation, it is important to determine the required volume. This volume is determined based on the calculation of 600 liters of system volume. The resulting figure is calculated according to SNiP — 200 liters per 1 person per day multiplied by the residence time of wastewater in the septic tank (at least three times the inflow volume). From a family of 3 people, we calculate 200×3 people=600×3 days=1800 liters. The required septic tank volume should be 1800 liters.
*For production facilities*
In any production facility, people involved in the production process usually only use a toilet and a sink to wash their hands. Therefore, for production enterprises, it is necessary to take the calculation from 50 to 100 liters per 1 employee per work shift. As a rule, water consumption does not exceed 50 liters.
The facility is capable of serving from 30 to 35 people.
*For cafes, restaurants, hotels*
Depending on the volume of water consumption.
**General description of operation and calculation**
The energy-independent local treatment plant LOS is an energy-independent, simplest (independent) system of biological wastewater treatment operating with gravity flow of wastewater sequentially through 3 chambers, separating suspended and solid substances that precipitate and settle to the bottom, where an anaerobic process of wastewater treatment takes place and additional biological treatment on a removable R-TUB biofilter installed in a special compartment at the outlet of the system.
The calculation of the required cubic capacity of the septic tank is carried out according to accepted standards (SNiP 2.04.03.85 «Sewerage. External networks and structures»): with a wastewater flow rate of up to 5 m3 / day — at least three times the daily inflow at a rate of 170 to 250 l / day for each resident.
**Design advantage**
Structurally, the septic tank is a sealed, high-strength container with massive stiffening ribs divided into 2 (two) chambers, equipped with nozzles, extension necks and lids, couplings for inlet and outlet pipes with a diameter of 110 mm, ready for installation and operation.
A two-section sewage treatment plant reduces operating costs due to the absence of aerators and power supply from compressors that inject air for the operation of aeration elements.
**LOS principle of operation**
The operation of the two-volume treatment system (sump) Rodlex-SO5000-2 is based on mechanical and biological treatment of incoming, contaminated domestic wastewater.
Contaminated water entering the treatment plant flows through pipes laid from the house to the system at a negative angle (1-2 cm per 1 meter). As from the septic tank to the filtration fields. The holes in the septic tank are located at different heights, which allows the effluent to move freely from chamber to chamber to the filtration area, to the infiltrators, to the wells.
1 septic tank chamber is a receiving compartment in the tank (septic chamber), where untreated, black and gray wastewater from the toilet, kitchen, bathroom, jacuzzi, etc. enters. In the first chamber, primary settling of the liquid takes place according to the principle of graphitation, where surfactants (surface-active substances) in the form of films and grease float to the surface, and heavy inclusions (sand and other inorganic compounds) precipitate. Next, sewage wastewater enters the second chamber.
2 septic tank chamber is a chamber for biological wastewater treatment (anaerobic fermentation), in which, by means of anaerobic bacteria and microorganisms living without oxygen supply (a deficiency of free oxygen is maintained), biological wastewater treatment and oxidation take place. The effluent flows by gravity to final post-treatment in filtration fields, into a filtering well or through an intermediate, inspection well into drainage fields.
3 compartment — additional fermentation chamber.
**The main stage is wastewater post-treatment!**
Wastewater that has undergone mechanical and biological treatment in the septic tank enters the ground, where the most important part of the final treatment of wastewater separated from surfactants and suspended particles takes place — natural treatment of wastewater in filtering fields.
For the effective operation of any septic tank or deep biological wastewater treatment system, it is important to understand where to put the conditionally treated wastewater, where it will go after the sewage system. The presence of normal, permeable soils (sand, loam) ensures the system’s full normal operation. In poor soils (clay, quicksand), the presence of a high level of groundwater, wastewater post-treatment is almost impossible. In this case, it is necessary to build artificial filtration fields created from gravel and sand with a large area, filtration blocks with a storage capacity for gradual absorption by the soil.
**Filtration and absorption fields for the disposal of treated wastewater**
The filtering area can be created for the final natural post-treatment of conditionally treated wastewater (65-70%) from R-Block infiltration blocks connected to each other, from a UN filtering well, from a drainage perforated pipe in geotextiles or coconut braid, which protects the pipe from the ingress of sand and other small particles in the ground.
For the effective operation of the septic tank and living bacteria, the system is insulated and useful bacteria and microorganisms in powder or liquid form are systematically added (1-2 times) per month. These bacteria for the septic tank allow you to speed up the process of biological treatment, reduce the amount of sediment, odor in the treatment plant.
With a high level of groundwater, it is possible to install a septic tank with the correct organization of the filtration field, as a rule, with a high level of groundwater, drainage pipes are installed under the filtration fields with a pumping station mounted next to it, consisting of a sealed well with a float pump, where excess groundwater enters, followed by drainage of groundwater into a drainage ditch. Or filtration fields are organized on the ground (an artificial dune made of sand and earth embankment).
**Recommendations for additional equipment**
Rodlex specialists recommend installing an additional receiving well of the KDU, D1000 series after sewage systems before filtration fields for a control and inspection well where a check valve is installed (at the inlet, in the well) in order to prevent (reverse) the ingress of excess groundwater formed from melting snow after winter from filtration fields.
**Options for wastewater disposal from the septic tank**
1. If there are well-permeable soils, into drainage (perforated pipes) by gravity with the organization of a filtering layer of sand and granite crushed stone (fr.30-40) under the drainage pipe.
2. Into filtration (storage) blocks.
3. Into concrete filtering wells without a bottom.
4. In clay soils and quicksand, wastewater is forcibly discharged using a pumping station into bulk filtration fields arranged in the upper (permeable) layers of the soil.
5. Wastewater is discharged from the septic tank into prefabricated Rodlex® filtering wells with a screw cap, which provides the customer with an additional volume of accumulation of treated effluent for effective absorption by the soil.
6. If there is a large difference in the geodetic height of the outlet pipe from the house from 800 to 2000 mm, a large distance of the sewage system from the house, a sewage pumping station is used to force-feed wastewater into the septic tank
In each case, we can find an effective solution for you for installing a septic tank on your site, an optimal placement and disposal of treated wastewater. Give recommendations and advice on the choice of system.
Backfill: Sand