9 m³/d, school, Sweden - Tryserum
The old septic tank of a school in Trynserum from the 60’s no longer met the requirements and had to be replaced. At that time, the municipality decided in favour of KLARO technology, out of many competitors.
At the time of construction, 90 pupils were being taught in the school by 18 teachers. Based on the calculation of office employees, 3 pupils/teacher with 1 PE were calculated.
In addition to the school, a few residential units, holiday homes and a church were also connected to the plant, resulting in a plant with a total capacity of 8,5 m³/d.
The wastewater is predominantly generated during daytime. It is stored intermediately in the buffer area of the first two tanks. The evening and night-time cycles ensure that the water is processed by next morning and the buffer tank is emptied for the next day of school.
Carat S tanks were selected here as clarification tanks, since they are stackable, and therefore can be delivered to Sweden without taking up much space. There, the tanks were assembled by a specialist partner and mounted using a KLARO mounting kit. The plant has a phosphate precipitation stage, which is standard in Sweden.
Tank data: GRAF clarification tank Carat S
- plastic tanks available as half-shells up to Carat 6500 l
- stackable and space-saving
- 2 half-shells are permanently joined with clamps and a
seal (assembly on site)
Tanks: 4 x Carat 6500 l
Compressor: DT 4.25