Autonomous sewerage septic tank Tver for a summer residence and a private house

According to the tradition that came to us from Soviet times, most of the suburban areas given for construction are not equipped with a system for diverting domestic water. An autonomous septic tank Tver with a high degree of purification for a comfortable stay in a country house will help to solve this problem. Read about the advantages and the principle of operation of the modern multistage wastewater treatment system Tver, design and operational features, the rules for choosing and installing this unit.

Principle of operation and design features

Septic tank Tver is a local autonomous sewerage system designed for effective wastewater disposal in areas where there is no connection to a centralized sewerage system. Depending on the modification, the installation is capable of serving houses with the number of people living from 2 to 36 people without installing additional equipment for additional treatment and creating drainage systems. It does not require much space and can be installed on a site with any soil. The quality of wastewater treatment reaches 98%, which makes it possible to use water for technical purposes.

The principle of operation of the septic tank Tver is based on the use of a four-stage wastewater treatment from biological material:

1. Sump system.
2. Mechanical cleaning.
3. Processing by anaerobic bacteria.
4. Exposure to aerobic microorganisms.

The local wastewater treatment plant is a plastic container with a horizontal orientation.

Septic tank device Tver

The design of the septic tank consists of semi-submersible and dividing partitions, forming compartments in which processing, decomposition of biomaterial, and final treatment of domestic water takes place:

1. Septic chamber. Primary separation of waste water into fractions. The heavier ones sink to the bottom of the settling tank, the lighter ones rise to the upper part of the compartment, from which they enter the bioreactor.
2. Anaerobic processing compartment. Crushing biological waste into small fractions, which undergo an oxidation stage through the action of anaerobic bacteria.
3. Aeration tank. Wastewater is treated with aerobic bacteria and filtered through layers of expanded clay.
4. Sump section, in which expanded clay and silt inclusions are removed from the water.
5. Secondary aerobic bioreactor. Thanks to the air supplied to the compartment by the aerator, aerobic microorganisms actively absorb the organic matter remaining in the liquid. To remove chemical impurities from the water that remain in the water after the use of detergents, the liquid is passed through a layer of limestone.

The last stage of cleaning is the stabilization section, where limescale is removed. At the outlet of the installation, a chlorine cartridge is installed, which disinfects the water, destroying pathogenic bacteria, after which the purified wastewater is discharged by gravity into a drainage well. To grind biomaterial in the bioreactor sections, special brushes are installed. The aerators are mounted at the bottom of the aeration tank and secondary bioreactor. The movement of liquid from the compartments occurs through the openings in the upper part of the dividing walls.

Case features

Septic tank Tver is an autonomous sewerage system with complete treatment of domestic water.All elements of the device are installed inside a sealed housing made of polypropylene - a durable corrosion-resistant material.

To increase the strength characteristics and resist soil pressure, the body is equipped with stiffeners:

• the shape of the body is trapezoidal;
• the bottom is round;
• case orientation - horizontal.

The body of the septic tank is equipped with gas outlets and an inspection hatch.

Correct installation of the septic tank Tver assumes the presence of a dense sand cushion, which will ensure the integrity of the body during displacement and frost heaving of the soil.

Autonomous sewerage system septic tank Tver for efficient waste treatment

In comparison with other autonomous wastewater treatment plants, septic tanks Tver significantly save money for their owner to pay for services:

1. Sanitizers, thanks to the possibility of self-service no more than 2 times a year.
2. Repair specialists. The design of the septic tank does not use overflow pipes and nets, which excludes clogging.

All systems for complete treatment of domestic water require power supply to ensure the operation of the aerators. For septic tanks Tver interruptions with electricity are not critical, since two types of bioreactors are used for purification at once, operating on different principles. Even if all aerobic bacteria die without air supply, anaerobic microorganisms continue to process organic matter from wastewater. Without reducing the quality of cleaning, the system can work independently for 3 days.

To maintain the vital activity and active reproduction of microorganisms involved in the processing of organic compounds of wastewater, an ambient temperature of more than +5 ° C is required. To ensure the correct temperature, the walls of the unit are insulated for the winter.

Tver septic tanks do not need thermal insulation. The required temperature in the system is ensured by the following factors:

• already warm waste water gets inside the device;
• the compressor supplies warm air;
• all reactions proceed with the release of heat.

The elongated shape and low height of the septic tanks make it possible to install the station in the upper layers of the soil, which significantly reduces labor costs for creating a pit and allows the installation to be located in areas with a relatively high level of groundwater.

Service features

Periodic maintenance of the septic tank Tver consists of the following procedures:

1. Sludge pumping. This operation is done by manipulating the work of the cranes. The sequence is as follows: close valve # 1, open valve # 2 for 3 minutes, turn off valve # 2 and open valve # 3.
2. Cleaning the primary clarifier. On average, this procedure must be done once a year. Cleaning is carried out by a sewage service or by pumping out sludge fecal pump.
3. Replenishment of the lime layer. The need for this procedure, as a rule, occurs once every 2 years.
4. Washing of bioreactor brushes. This is done when a noticeable plaque appears on the surface of the bristles. On average, this procedure is performed once a quarter.

The manufacturer indicates the need to carry out a major cleaning of the inner surface of the tank once every 3 years. All contents are removed from the container and the plaque is washed off the wall with a strong pressure of water.

With constant use, Tver septic tanks do not need conservation for the winter. If the owners of an autonomous cleaning system do not plan to live in a country house in the winter, then in order to maintain the operability and integrity of the system, it is necessary to perform standard measures for the preservation of the septic tank. You can do without conservation, but in this case it is necessary to create conditions under which the microorganisms in the septic tank participating in the processing of organic matter will remain alive and capable of reproduction: feed the bacteria with kefir or semolina at least once a week.

Choosing a location

When installing a biological treatment station on the territory of a private house, one should be guided by the requirements set forth in SNiP: 2.04.03-85; 2.04.01-85; 2.04.04-84; 2.1.5.980-00 and SanPin 2.2.1 / 2.1.1.1200-03.

The installation diagram of the septic tank Tver is clearly shown in the figure.

For complete confidence in the correct choice of place, experts recommend installing a septic tank:

1. From the road with heavy traffic and the foundation of a residential building ≤ 5m.
2. From the road that serves as a passage ≤ 2 m.
3. Distance from plantations and garden trees ≤ 3 m.
4. From the border of the site to the septic tank ≤ 2 m.
5. From the reservoir ≤ 10 m.

When choosing an installation site, it is necessary to strictly observe the distance from the septic tank to the drinking water tanks. From wells (well) with drinking water, the septic tank can be located at a distance of ≤ 20 m.

Installation instructions for septic tank Tver

All work on the installation of septic tanks in Tver can be divided into several stages.

1. Creation of a pit for a septic tank. The size of the pit should be 30 cm larger than the body to create a sand cushion that will withstand the forces of frost heaving. The installation depth depends on the height of the water table and the type of soil.
2. Creation of trenches for supply lines and a drainage well / wastewater disposal site. The depth of the trench should take into account the slope of the sewer pipe, which is necessary for the smooth movement of wastewater into the tank.
3. Laying the sewer pipe and compressor duct from the house to the installation site of the system. The angle of inclination is not less than 2 mm per 1 running meter; the depth of laying is not less than 0.7 m. To maintain the temperature regime, the pipeline is insulated.
4. Leveling the bottom of the pit, compacting and creating a sand cushion. The thickness of the sand layer under the bottom of the septic tank is at least 100 mm.
5. Installing a septic tank on a prepared base. The maximum allowable horizontal drop is 10 mm; in the vertical plane - 5 mm.
6. Connecting communications to a septic tank.
7. The body is covered with sand around the perimeter. With a close occurrence of groundwater, the body of the Tver septic tank is covered with a mixture of sand and cement in a 5: 1 ratio. For compaction, clean sand can be spilled with water. The cement-sand mixture is compacted "dry".

The upper part of the body is covered with earth, taking into account that the cover of the inspection hole must be at least 100 mm above the ground level.

All about the septic tank Tver - video