Case Studies
![](https://www.cirtec.nl/wp-content/uploads/2022/10/image-12.png)
Primary water treatment
Primary treatment of sewage using the IntenSieve® The process of a sewage treatment plant (STP) can be divided into separate phases. Preliminary treatment: the removal of coarse particles, such as sand, sticks and bags Primary treatment, the removal of suspended solids and organics Secondary treatment: this involves the removal of
![](https://www.cirtec.nl/wp-content/uploads/2022/10/image-3.png)
Cellulose recovery
CellCap®, cellulose recovery from airport water Introduction situation The WWTP of an airport receives the sewage from the airport (including the water flow from the vacuum toilets of the aircraft) and from the industry present there. The average daily flow rate of a specific WWTP is 4,000 m³/day. The flow