If you are interested in deep biological treatment plants, then as an alternative solution you can consider the Aspen septic tank, which is a patented structure. It is intended for the treatment of domestic wastewater and is excellent for the climatic conditions of Russia, thanks to this the system has gained recognition and is widespread.
Such equipment can be installed in gardening and dacha farms and in suburban housing. This decision will be a way out of the situation when it is necessary to solve the problem of disposal of effluents and waste. "Aspen" is able to purify effluents by 98%, which will provide the owners with the usual urban amenities and comfort. You can install the system on 2 private houses, which will save space on the territory and reduce costs.
Principle of operation
Septic "Aspen" works on the principle of combining biological and mechanical wastewater treatment. The internal sewage system is connected to a pipe through which drains enter the first chamber by gravity. Under the influence of gravitational force, heavy elements from polluted waters settle at the bottom of the installation, where they form activated sludge.
All contained films, fats and light impurities float, and after a while a crust forms, which can be disposed of using the technical hatch. Activated sludge involves the presence of anaerobic bacteria that process solid waste.
The Aspen Septic tank has a loading chamber, after the wastewater is cleaned, clarified water enters the settling chamber through overflows, from where sewage is sent to the biological filter. Inside this chamber, the third in a row, are biofiltration films, where artificially grown bacteria begin their work. Their growth period lasts 3 weeks, in just two days the water will be purified thanks to them by 98%.
The described processes proceed with the formation of heat and gases that escape through the air. Behind the bio-treatment chamber, water is sent to the infiltrator, which is a well or drainage field. The purified liquid can be disposed of in the soil or used for technical needs at the site.
Specifications
Septic "Aspen" is a non-volatile system, which consists of a reinforced concrete building. This provides reliability. The design is very simple, its service life reaches 50 years. Installation can be done on soils with a high level of groundwater. This type of treatment system is not expensive. You can use them year-round.
It’s very easy to take care of the Aspen. There is no need to control the cleaning process. Operation of the equipment is not accompanied by the release of unpleasant odors. The system is capable of undergoing significant overloads that can occur when discharging a huge amount of water.
The principle of operation of the Aspen septic tank was described above. However, this is not the only thing the consumer should know. It is important to familiarize yourself with weaknesses. Among them, impressive weight and dimensions should be highlighted, which entails additional installation costs, the inability to transport the system on its own and the need to attract special equipment.
The cleaning principle is based on a drip filter and a digester. The design provides for the presence of two chambers, which are enclosed in a single reinforced concrete building. Installation is carried out on a pillow of sand and gravel. Backfill is made with a dry cement-sand mixture. Wastewater is forcibly discharged, they are pumped into the filter well.
Studying the characteristics of the Aspen septic tank, you can understand that it provides for the need for pumping out once every three years. You can choose a system based on the volume of drained effluents. The 1000 liter design will cost 65,000 rubles. If the first value increases to 2000 liters, then the price becomes equal to 95,000 rubles. By purchasing a septic tank with a volume of 3000 liters, you will have to pay 120,000 rubles.
Some specifications of different models
Before choosing an Aspen septic tank for a summer residence, you should understand the varieties of such equipment. For sale is the model "Aspen-1", which is a universal treatment plant. It is designed for 6 residents. Daily cleaning will be a cubic meter of effluent.
"Aspen-2" is intended for installation in a house where no more than 12 people live. Productivity reaches 2000 liters per day. "Aspen-3" is a facility for collecting and mechano-biological treatment of domestic wastewater in buildings and houses, where up to 18 people live. Every day, the system will be able to process 3,000 liters of effluent. The case is made of reinforced concrete. This system is non-volatile, and it needs to be pumped out every 3 years.
Installation
Installation and installation of the Aspen septic tank can be carried out by you independently. Work must be carried out in accordance with sanitary norms and rules. A pit and trenches are dug under the system and sewer pipes , the latter should have a slope of 20 mm per meter. The walls of the pit should have a slope ranging from 20 to 30 °, the final value will depend on the type of soil.
If the walls are crumbling, then it is necessary to install the formwork from wooden boards. If you decide to install the Aspen septic tank, the installation instructions must be studied. Having familiarized yourself with it, you will be able to understand that it is necessary to lay a leveling cushion of sand up to 10 cm thick at the bottom of the foundation pit and trenches. This preparation is spilled with water, rammed and checked by level. From the house to the cleaning system, it is necessary to lay a pipeline with thermal insulation.
At the next stage, the septic tank is lowered by a crane into the pit. After that, you should connect the pipeline to the inlet and outlet pipes. Joints are sealed with cement-sand mortar. The system should be supplemented with a ventilation pipe, which rises above the ground by 1 m. Its diameter will be 100 mm. The design should be supplemented with a deflector, cast iron manhole and stacked rings.
Installation Features
Insulation is placed on the top of the septic tank, as well as on the walls of the system. Installation of drainage and storage wells, as well as a filtration field, is carried out before backfilling.
The choice of infiltrator will depend on the preferences of the owners, as well as the type of soil and the level of occurrence of groundwater. Backfill is carried out in layers, it is necessary to use sand for this, which is spilled with water and rammed. This will eliminate the deformation of the insulation.
User's manual
Operation of the Aspen septic tank provides for system maintenance once every three years. These works involve cleaning the bottom of the chambers from sludge. You can do it yourself using a modern drainage pump or a simple bucket. An alternative solution is the call of the scavenger.
Self-cleaning is a rather dangerous process, because the skin and respiratory organs must be carefully protected. After each cleaning and interruption of the septic tank, bioactivators should be added to it, which will allow the resumption of the sewage treatment process. The biofilter should also be periodically cleaned. The bulk of the plaque is then disposed of, as are the existing bacteria.
How to service
The autonomy of the Aspen sewage treatment plant is an order of magnitude higher than the autonomy of other septic tanks. The latter should be pumped out once every six months. The autonomy of the Aspen is that it does not need such frequent cleaning. However, system maintenance is still required. This is the comfort of equipment operation.
For proper maintenance, it is necessary to clear the ground from the cover of the technical hatch, open it and place the drainage hose of the fecal pump inside. He must reach the bottom. It can be replaced with a vacuum hose of a cesspool machine. This will pump out the contents of the first two cameras.
Biofilter cleaning
Having examined the photo of the Aspen septic tank, you will see what the biofilter consists of. In the process of servicing the system, it is necessary to replace expanded clay in this part of the device. The fraction must comply with a limit of 20 to 40 mm. Part of the bacterial activated sludge remains in the chambers, and the same bacteria should be placed in the biofilter. This is necessary so that they can again form their colonies there and recycle sewage drains just as efficiently.
After replacing the parts of the biofilter and pumping out the system, the lid is tightly closed and checked for leaks. Thermal insulation material returns to its place. If it is damaged, then this area should be replaced with a new cover of insulation. At the final stage, everything is covered by a layer of earth, which is slightly rammed.
Security measures
When pumping the septic tank and replacing the biofilter, you must follow the safety rules. The master needs to work with gloves, and protect the respiratory organs with a mask. These precautions are necessary to prevent harmful microorganisms, gases and vapors from entering the body and skin. Clothing should cover the whole body. It is not recommended to work in a T-shirt and shorts.
Finally
The septic tank, manufactured under the Aspen brand, is a solid, reliable and very simple installation that can be used in residential facilities not connected to the central sewage system. Problems in the operation of this equipment usually does not arise.
Installation can be done independently. True, you will have to use the services of heavy equipment, because the body of the unit is made of reinforced concrete, which has an impressive weight. But this in some cases is an advantage: the system will not be pushed out when the soil is heaving.