• the use of in- and out going   waterstreams of fishfarms 
• in substitution for primary and secundary sedimentation 
  regain of products
• cleaning of industrial wastewater; for instance: paperfactories, sugarfactories and fishing-industry

 Left: a drumfilter at the Waterworks Company Drenthe (Holland) :

• prefiltration 50 micron at membrane installation
• capacity 500 m3/h

Aftertreatment of water from draincleaning installation (polishing)

Left: Tank and  filter. Polishing effuent of active sludgesystem