DOMESTIC WASTEWATER AS-VARIOcomp K, AS-VARIOcomp K ECO and AS-VARIOcomp K ULTRA Certification CE according to EU legislation Complete supply (all included in the price) Thermally-insulated, lockable and trafficable manhole cover; design in two colours Easy handling in service and operating reliability Customer support and services rendered over the whole territory of the Europe Possibility of easy upgrading from a conventional wastewater treatment unit to the ULTRA type by building-in the membrane module If the ULTRA type is used, the clarified effluent can be utilised as service water The type range of complete domestic wastewater treatment systems dedicated for treatment of sewage from family houses. The process design of these wastewater treatment systems is based on stable and reliable operations at a minimum energy demand. This technology utilises aerobic biological processes wellproven in long-term service. TECHNOLOGY DESCRIPTION Domestic wastewater enters the settling tank (A) in the head part of the waste- water treatment system, where floating and settleable solids are removed and consequently treated in the aerobic degradation process. From the settling space, the mechanically pre-treated water stream enters, over the overflow, the activation tank (B). The activation tank (B) is used for the bio- logical treatment of wastewater. In its bottom section, the tank is fitted with a fine bubble aeration system, into which the air is blown by the blower, and, as the case may be, by the biomass carrier (C), which improves the process stability in overloaded or little used wastewater treatment units. Another advantage is represented by the storage tank (D) in the space over the whole system, which is dedicated for the wastewater accumulation and that, in turn, provides for more uniform effluent outflow from the unit. From the activation process, the activated mixture flows to the up-flow settlement tank (E), from where the purified effluent is drawn off by the airlift pump (also called mammoth pump) (F) into the effluent trough. The surplus of the aerobically stabilised sludge is drawn off by the airlift pump to the settling and sludge tank MODERN, QUALITY AND ECOLOGICAL PRODUCTS

Double-jacket domestic wastewater treatment unit for both travelling and building-in structure under HOLIDAY-PERIOD RECIRCULATION Explanatory note: A - Sludge & settling tank E - Up-flow settlement tank Note: In case of individual equipping of a wastewater treatment system with a fioccuiant dosing device, it will be possible to provide for a further decrease in the discharge values for separate parameters.

The system is purported for the treatment of wastewater from permanently inhabited buildings, in the capacity for 3 to 25 population equivalent units. This wastewater treatment system is fitted with a membrane-based technology capable of removing a major part of viruses and germs from the purified water. By its quality, the purified water is comparable with rainwater and therefore suitable for irrigation as well as domestic sanitary water. PROCESS DESCRIPTION Wastewater enters the settling tank (A) in the head part of the wastewater treatment system, where floating and settleable solids are removed...

INSTALLATION OF WASTEWATER TREATMENT SYSTEMS The wastewater treatment system is installed to an excavation pit on a concrete slab (no concrete encasement is necessary), connected over the tube socket to the sewer and air supply from the blower located outside the system is brought in. Basic functions are already set up at the manufacturer's place and - apart from the plugging the blower in - no wiring works are necessary. The system commissioning is carried out by the supplier or an authorised service centre. Owing to the unit dimensions and weight, the 5 and 8 EO types can be transported by...