Review of characteristics and types of septic tank Unilos Astra 5: features, maintenance and operating instructions, selection rules, installation

Today, manufacturers offer a wide range of different treatment systems for autonomous sewers. The operating principle of aerobic stations is almost the same for all models, however, the price of the stations can vary greatly. Those owners of private houses who would like to choose an effective and relatively inexpensive wastewater treatment plant should pay attention to the deep biological treatment station produced under the Unilos Astra 5 brand.

Unilos septic tanks enjoy deserved popularity on the Russian market. Buyers especially often purchase Astra 5 stations, which are perfect for servicing a house where five people are planned to live.

When using this station, you can install a standard set of plumbing fixtures in your home, including a washing machine and dishwasher. The Astra station, designed to serve five people, (as well as its modifications Unilos Astra 5 midi and Astra 5 long) is capable of processing up to 1000 liters of household waste.

The output water is clean enough (the degree of purification is 98-99%) so that it can be used for economic purposes. And excess activated sludge is a good organic fertilizer for the garden.

Device

The Astra autonomous sewage system is a fairly compact installation, the body of which is made of durable polypropylene. Inside, the body is divided into several communicating compartments:

• The largest compartment is the receiving compartment. During the operation of the local sewerage system, it accumulates wastewater and at the same time serves as a septic tank. In this chamber, particles of undissolved substances, the density of which exceeds water, settle to the bottom. Primary biological treatment processes occur immediately, using the principle of anaerobic fermentation.

• After the initial settling, the clarified water enters the second chamber, which is equipped with an aerator. The purpose of this device is to saturate the liquid with oxygen. This is necessary to ensure the normal functioning of aerobe bacteria. Since this chamber uses the principle of aerobic biological treatment, the process of “work” of bacteria decomposes organic impurities contained in the wastewater.

• Another chamber is used to collect sludge, the excess of which inevitably forms during the operation of the station. Here, sedimentation of suspended matter and sludge occurs, which contains bacteria and protozoa that take part in the purification processes.
• To ensure that the water leaves the septic tank as purified as possible, a reserve sump is used, here additional settling of almost pure water takes place.
• The movement of water between the chambers during operation of the installation is carried out through plastic tubes using air supplied by a compressor.

Design and principle of operation of septic tanks Unilos Astra

The design of the station provides for the gradual removal of contaminants in four series-connected tanks enclosed in one housing:

• Receiver

This is the primary sedimentation basin for heavy sediments, connected to the sewer line. This is where small and large solid particles from kitchen sinks or plumbing fixtures settle to the bottom. The liquid moves through the mamut pump for the next stage of cleaning.

• Second camera

Aerobic biological purification reactor that converts pollutants into sludge. In it, under the influence of bacteria, fat, chemical compounds and microparticles that do not settle in the receiving area are broken down.

The liquid flows further through a grease filter that retains the film on the surface of the drain.

In an aerobic reactor, microorganisms are generated within a month from the start of Astra’s operation. The number of users is regulated by the manufacturer for each model.

If operating conditions are violated, bacteria are introduced artificially - a special mixture is purchased and poured into the home sewer.

• Third compartment

Separates sludge deposits. The old ones fall to the bottom, and the new ones return to the second tank for further processing.

• Fourth tank

Pure water flows into it with a purification degree of up to 98%. The autonomous station produces process water with hygienic characteristics, suitable for watering plants or washing buildings and cars.

Compliance of the degree of purification with SanPiN standards and the environmental safety of the process are confirmed by sanitary and epidemiological conclusions.

Advantages

From those people who are already using Unilos Astra 5, the reviews are mostly positive. Indeed, this installation has many advantages, but since there are no perfect things in the world, it would be fair to note the disadvantages of using installations.

The main advantages of a septic tank

• high degree of purification of incoming wastewater;
• the body is made of durable polypropylene, its walls are 20 mm thick, so it can withstand heavy loads;
• the septic tank operates practically without the participation of the owners and requires a minimum of attention;

Advice! If the autonomous station Unilos Astra 5 is used, the operating instructions require that excess sludge be pumped out periodically (once every six months). This is not difficult to do, so most owners do the maintenance themselves.

• excess sludge can be used to fertilize vegetable and garden plants;

Advice! The sludge pumped out as a result of cleaning the station is placed in compost and after about a year, a natural and safe fertilizer is obtained.

• easy installation. Autonomous sewerage can be installed and connected within 1 day;
• in the manufacture of the Unilos Astra 5 septic tank, only high-quality components are used, so the autonomous sewage system is very reliable and has a long period of stable operation;
• when using a septic tank, you do not have to worry about thermal insulation; the thick walls of the housing ensure low heat transfer.

Flaws

The disadvantages of the installation include energy dependence. However, during short outages, the quality of wastewater treatment does not suffer. Another disadvantage is the rather high price. Although, compared to other aerobic installations, the cost of Unilos Astra septic tanks is affordable.

Note to owners of country cottages

Among dacha residents moving out of town in the summer, Astra 5 station is especially popular. When choosing the optimal solution for wastewater disposal, consumers are primarily concerned with technical characteristics and price-quality ratio. Unilos Astra 5 is a septic tank, the price of which is fully justified by the unsurpassed quality of wastewater treatment. Autonomous sewage system Astra 5 - the price with installation is calculated depending on the characteristics of the soil, the distance of the septic tank from the house, as well as the number of pipes required for laying communications.

Due to the fact that our warehouse is located in the Moscow region, we can deliver Unilos Astra 5 Chekhov in 1 day to Noginsk, Kolomna, Odintsovo and any other city or village near Moscow at a time convenient for you. During our work, we have installed autonomous sewage systems at thousands of facilities in Moscow and the Moscow region and have a large number of owners’ opinions about the Unilos Astra 5 septic tank, reviews from real customers in video format.

Modifications of septic tanks Astra 5

In addition to the standard modification of the Astra 5 septic tank, models are available equipped with additional equipment. The technical characteristics of all modifications are almost the same; the stations are capable of:

• process up to 1000 liters per day;
• cope with the cleaning of a salvo discharge with a volume of 250 liters;
• The power consumption of the station is 60 W/h.

Additionally, stations can be equipped with a device for forced removal of recycled water, a unit for post-treatment and disinfection of wastewater. It is necessary to use forced drainage if the connection diagram of Unilos Astra 5 does not allow water to be drained by gravity.

Such situations arise if the soil on the site does not absorb well the water removed from the septic tank after the completion of the cleaning process. In addition, forced drainage is necessary if the connection diagram provides for the supply of purified water to a well or ditch located higher than the outlet pipe.

For installation at greater depths, stations with an extended neck are available. In this case, you should use the modifications Unilos Astra 5 midi or Astra 5 long. The choice of option will depend on which connection scheme is chosen. Thus, the Astra 5 midi septic tank is used if you need to connect the sewerage pipeline to the receiving chamber at a level of 60-90 cm.

The Astra 5 Long model is chosen if the connection diagram provides for deep pipe laying. This may be required if external sewerage is laid in an area with difficult terrain or deep installation is due to climatic conditions.

Station Astra 5 long is the option with the largest body height (3 meters). Install Astra 5 Long if you need to connect a pipe at a level from 90 to 120 cm from the surface.

Functionality

The processes taking place in the Astra 5 pr septic tank provide maximum wastewater treatment, making it safe for the environment, which allows the resulting liquid to be used:

This is achieved through the passage of liquid through 4 main chambers, which is what the Astra 5 pr septic tank has, where all cleaning processes take place:

1.

The wastewater is directed through a pipeline system from the facility to the largest first receiving chamber, capable of receiving up to 250 liters of liquid per day.

2.

The bacteria located in the first module interact with the organic matter present in the liquid, providing the first stage of purification.

3.

Passing through the filter located inside, the water is purified from large mechanical impurities.

4.

The pump built into the Astra 5 pr septic tank pumps liquid into the aeration tank, where it is actively saturated with oxygen during the mixing process. This increases the efficiency of bacterial activity.

5.

Next on the path of the treated wastewater will be a settling tank, in which the separation of water and sludge is carried out.

6.

The purified liquid is removed.

The resulting excess sludge is pumped into the stabilizer. In it, the heaviest impurities are deposited, and the rest of the mixture enters the first chamber.

Service

The Unilos Astra 5 septic tank will operate without failures if the installation is maintained regularly. Since cleaning work for the Unilos Astra 5 station is simple, maintenance of the installation can be done independently.

To carry out maintenance of Unilos Astra 5, you do not need to use special equipment in the form of a sewer truck. Sludge pumping can be carried out using a built-in pump.

It will be even easier, the owner of the house will enter into an agreement with a specialized company and service will be carried out by specialists. In this case, the principle of carrying out scheduled preventive maintenance is used. Therefore, if all work is carried out in a timely manner and the risk that the autonomous sewage system will stop unexpectedly will be minimized.

List of installation work performed according to Standard installation:

• Digging a pit for the Astra septic tank (sand, loam, clay)
• Digging and laying 4 lm. sewerage pipeline (from the foundation to the discharge point)
• Excavation of soil when digging a pit and trench is carried out in a dump
• 10 m of electrical cable VVG 4*1.5 and laying it in a HDPE pipe or corrugated hose
• Unloading the station from the vehicle, moving and lowering into the pit (for the Astra 3-8 standard and Long model range)
• Sprinkling with sand and simultaneously filling with water
• Delivery of sand to the pit no further than 15 meters
• Sealed insertion and soldering of the supply sewer pipe into the receiving chamber of the Astra station
• Sealed insertion and soldering of the outlet pipe, in the case of a forced station
• Connecting the station to the electrical cable
• Installation and connection of compressors to the station
• Installation and connection of the pump (for stations with forced ejection)
• Commissioning and commissioning of the Astra station.

Attention! The cost of sand, water, formwork, quicksand and rock soil is not included in the price of Standard installation.

Reviews

What septic tank owners say about this installation:

1. We bought a house in which the local sewer system was equipped with a homemade septic tank. Before we moved, no one had lived there for several years. When we moved in and, naturally, started using the sewer, such a stench spread through the area that you couldn’t even go outside. I don’t know what the reason was, maybe something was done incorrectly. But the husband decided not to deal with old problems, but to install a modern septic tank. I bought the Astra-5 model. Now there are no problems with odor in the area; we really live in the fresh air.
2. I have an Astra 5 autonomous sewage system installed at my dacha. I liked the fact that you can service this thing yourself, even if you don’t have any special skills. I get the job done pretty quickly, and I only need to do maintenance once a quarter. Very comfortably.

So, the Astra 5 septic tank is equipment that uses the effective and safe principle of biological treatment. Such an autonomous sewer system is perfect for equipping a private house where no more than 5 people are planned to live.

Technical characteristics of Unilos Astra 3, 5, 8

VOC Astra engineering systems are classified according to the volume of liquid waste received. The numbers in the labeling are the maximum number of people for which a particular model is designed.

Installation and operation

If you are building an autonomous sewer system, the easiest way is to order turnkey installation with a guarantee. In this case, the sewerage system will be built by our company’s specialists. But even if a turnkey installation is ordered, it will be useful for the owners to know what the connection diagram should be and how the installation should proceed.

The standard connection diagram for the Astra septic tank is quite simple. The supply pipe must cut into the septic tank at a certain level, so the depth of the pipe connection is determined at the design stage. This will allow you to understand which modification (standard, Unilos Astra 5 midi or Astra 5 long) is suitable in this case.

The installation diagram is always drawn up in relation to the area, since conditions can differ radically. For example, the connection diagrams for septic tanks in areas located, for example, near St. Petersburg and near Moscow can be completely different.

At the design stage, the drainage scheme for purified water is determined: gravity or forced. In the latter case, the installation requires connecting an additional pump.

Installation work

Once the connection diagram has been determined, installation can begin. At the first stage, it is necessary to determine the location where the station will be installed. The manufacturer does not set very strict restrictions in this matter, but it is important that the cleaning installation is located at a distance of at least 5 meters from the foundation of the house.

The dimensions of the pit are determined by the body of the septic tank; if the Unilos Astra 5 midi or Astra 5 long model is installed, then you will need to dig a deeper hole. It is necessary that the pit be 20 cm deeper than the height of the body and 50 cm more than the width and length.

Advice! If turnkey installation of a station is ordered, then the excavation work will be carried out using earthmoving equipment.

After installing and leveling the station, the pipes are connected and the power supply is connected.

Operating rules

When purchasing a wastewater treatment station, you will be given an operating manual which you should read carefully. The rules for operating the station are quite simple, the sewer can be used as usual, but there are some restrictions. So that failures do not occur during operation, the following should not be discharged into the sewer:

• construction waste, polyethylene and other non-degradable waste;
• chemicals, solvents, gasoline, etc.;
• a large number of chlorine-containing preparations and medicines.

For normal operation of the station, regular maintenance is required. You can carry out maintenance yourself, but it is better to enter into an agreement with a specialized company. In this case, the service will be carried out better.

So, if you are installing a local sewage system for a private house, then the Astra bio-treatment plant is ideal. Where can I buy this equipment? We recommend contacting our company. Consumers will be offered a full range of septic tanks and turnkey installation of equipment. If turnkey installation is ordered, the owners will be provided with a warranty.

The company operates in Moscow, St. Petersburg, as well as in a number of other Russian cities. Our price for septic tanks, as well as the cost of turnkey installation, is reasonable and justified, so shopping with us is profitable and reliable.