O nofoaga sili ona lelei mo togafitiga mo fale i le 2022

Owners of private houses and residents of cottage settlements need modern comfort, and not “conveniences” in the backyard. Modern technologies make it possible to solve this problem, and foreign companies produce for this purpose specialized complexes of treatment systems, which involve biological methods of wastewater treatment. Bacteria convert organic waste into safe products of their own vital activity. And innovative methods of aeration dramatically increase the efficiency of treatment facilities and contribute to the preservation of the environment.

Filifiliga a le Pule

GREENLOSE Prom

The unit treats domestic wastewater and does not require connection to the sewer system. The level of purification reaches 95% due to the use of both aerobic and anaerobic microorganisms (working in an environment saturated with oxygen or completely devoid of it). Moreover, an uneven flow of sewage is possible, for example, when pumping them out of makeshift cesspools.

The Prom system is modular, that is, it is capable of increasing productivity by simply adding the same type of nodes. The minimal design is a polypropylene-walled cylinder lying horizontally in an underground pit. The interior space is divided into sections, from each section a rectangular technological hatch emerges onto the surface. The catalog of the enterprise includes 20 variants of the Proma configuration, designed for different volumes of wastewater treatment. The best option for cottage settlements is able to process from 6 to 100 cubic meters of sewage per day with the number of users from 30 to 300 people. 

The main advantages of this system are its security, energy independence and simple maintenance.

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Top 5 treatment facilities for cottage settlements in 2022 according to KP

1. Wastewater treatment plant EVO STOK BIOLog 30.P.UV

The EvoStok brand belongs to the company PROMSTOK. It designs, completes and builds domestic sewage treatment systems for country houses, cottage settlements, hotels and similar facilities. The firm cooperates with world leaders in this field. A striking example of a treatment plant for a small cottage village: EVO STOK BIOLog 30.P.UV. 

Primary mechanical cleaning takes place on grates, followed by bio-treatment and post-treatment to reduce the concentration of nitrogen and phosphorus. The residual sediment is dried, the liquid is ozonized and finally disinfected. This water can already be discharged onto the surrounding landscape or into a reservoir. Stations of increased productivity allow you to clean up to 100 cubic meters. m of sewage per day.

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2. Cleaning complexes Alta Air Master Pro 30

These facilities carry out deep biochemical treatment of domestic wastewater using patented technical solutions. The system is modular and, depending on the configuration, is capable of processing from 10 to 2000 cubic meters of sewage per day. It is delivered in the form of containers, ready to run immediately after installation. 

For full-fledged operation, it requires connection to a three-phase network with a voltage of 380 V. But it can also work in a de-energized mode without creating a risk of flooding. When included in the delivery set of ultraviolet disinfection devices Alta BioClean, it is allowed to discharge purified water into fishery reservoirs.

The complex is equipped with an automatic control system that monitors the state of the environment, the level and dosing of reagents, disinfection and removal of sediments and dead biomass.

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3. Installation of biological treatment VOC-R 

The equipment of the ECOLOS company carries out in-depth bio-treatment of domestic wastewater to the level of MPC (maximum permissible concentration) of fishery reservoirs. The sand trap retains solid particles, only organic matter enters the aeration tank, where it is oxidized by activated sludge. Denitrification, that is, the removal of nitrogen and ammonia residues from the liquid, is provided by the biological load unit. 

Purified water and activated sludge are separated in the secondary clarifier behind the overflow partition. From here, water enters the post-treatment units with a medium-bubble air system and disinfection with ultraviolet radiation. After that, it can already be taken to the landscape or to a reservoir. The complex is a cylindrical tank that is mounted fully or partially buried.

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4. Station Kolo Vesi 30 prin

The Finnish treatment plant includes two self-contained cylindrical modules connected by polypropylene pipes. The manufacturer declares cleaning up to the level of 98%. 

Polluted water enters the first module through a sewer pipe at a depth of 600 mm under pressure created by a fecal pump. In the neck of the module there is an installation for the irrigation of organic foam and a bacterial film formed during the anaerobic cleaning stage. 

Here, the water settles and is partially purified, then it enters the second module through the filters. The filters have long handles, by which they can be removed and washed under a stream of clean water. 

The second module is an intermittent aeration aerotank. The submersible pump is switched on by a timer and supplies water to the aeration elements in the module necks. Purified water is drained through the drain well.

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5. “Astra 30”

The Unilos Astra 30 septic tank purifies domestic wastewater up to 98% and does not pose any danger to the environment. It is able to serve a small cottage village with a population of up to 30 people. 

The product is supplied fully assembled and mounted in a pit with a supply pipe at a depth of not more than 600 mm. For a greater depth of sewerage, there are modifications of Astra 30 Midi and Astra 30 Long. If the groundwater level is elevated, then the tank for processed wastewater, included in the delivery, is used. 

Installation of the device is carried out in one day by a qualified team. Gravity or forced discharge of treated water is possible.

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How to choose an aeration unit for a cottage village

The task of arranging local treatment facilities (VOCs) is faced by any housing builders in areas remote from the centralized sewerage system. Specialists know how to design and build such systems, based on regulatory documents, as well as using a wide range of septic tanks and modular stations available on the market.

First of all, it is necessary to understand what effluents will flow into the future VOC. From service stations, gas stations, garages, it will be chemical and technical drains, from residential buildings – domestic. Often you have to deal with mixed drains, since gas stations and service stations are being built near cottage settlements. The answers to these questions determine the structure of the future system and its technical parameters.

Fesili ma tali lauiloa

KP told about the intricacies of choosing treatment plants for cottage settlements Head of the production department of the company “Innovative environmental equipment” Alexander Misharin.

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1. https://www.mos.ru/upload/documents/files/8608/SP32133302012.pdf