The sprinkler is used with high-load biofilters. The spray irrigates the sewage uniformly over the biofilter filling surface. The sewage is fed through a vertical pipe (D = 200 mm at a basic flow of up to 5000 m3/24 hours). In case of small rotary sprinklers with a flow of up to 100 m3/24 hours the sewage is fed through a horizontal pipe with the diameter of 75 mm. The sewage passes through a distributor and flows into a revolving overflow tank and, after a short swelling time, the sewage flows into the sprinkler arms, where it exits through sprinkler holes. The sewage streams flow out with enough speed that a reaction force is created adequate to rotate the sprinkler unit.
The rotary sprinkler is made of acid-resistant steel and PC pipes.
Parameters of sprinkler models:
Maximum flow: Qmax = 5760 m3/24 hours – 240 m3/h
Basic flow: Q = 4320 m3/24 hours – 180 m3/h
Sprinkler diameter: up to 12 m