The biological wastewater purification stations offer the best solution to handle the municipal and household wastewater purification tasks.

The stations are utilized to treat the wastewaters produced by private houses and housing communities, cafes, cafeterias, restaurants, hotels, sanatoriums, recreation centers and other facilities with 1 - 100 nominal users, ensuring purification at the rate of 1.0-16.0 m³ per day.

The ease of mounting and installation of the light, compact and ready-to-use purification systems allows the station to be installed and commissioned within three hours without any outside assistance, extensive engineering activities, special-purpose equipment or skilled personnel. The stations can also be mounted in the basements of the houses.

In the ground-mounted configuration version, the purification stations are delivered in the purpose-built winterized block containers, or mounted in the rack-and-panel structure based prefabricated buildings.

The purification station operation principle consists in decomposing the organic matter by activated biological sludge generated in the course of the station operation, with no reagents added. The process equipment is enclosed inside the station's sturdy, fully corrosion-proof plastic housing.

The biological wastewater purification stations offer the following advantages:

• noiseless unattended operation;
• no disagreeable odour;
• low power consumption;
• minimum maintenance requirements and costs;
• up to two weeks of operation without inflow of wastewater;

High-quality purification of wastewater is performed to meet the standards governing the land disposal practice and allowing purified effluents discharge into the fishery water bodies.

Wastewater purification index: up to 98%.

Purification indicator/measure	Output
Colouring	Not to be detected in a 10 cm column
Odours	2 points Ph 6,5-8,5 units
Mineral content	at most 1000 mg/dm3
Sulphates	at most 500 mg/dm3
Chlorides	at most 350 mg/dm3
Dissolved oxygen, mg O2/dm3	at most 4,0 mg/dm3
5 day BOD	at most 4,0 mg O2/dm3
COD	at most 30 mg O2/dm3
Ammonia (by nitrogen)	at most 2,0 mg/dm3

• cottage settlements
• cottages
• cafes, restaurants, bars
• recreation centers

Household and domestic waste water cleaning systems "AS BIO" design is based on experience of big waste water cleaning stations with small-bubble aeration, either discrete or continuous.

• Station connection within three hours
• Smell absence
• Easy to assemble both in on and in-ground variants
• Station’s power consumption - 6 Wt
• Work in automated mode
• Absence of changeable filters
• Waste water clearing to requirements of relief and fishing basin discharge