CMR or Continuous Metals Removal is Industrial Waste Water Services’s patented system for the use of Dissolved Air Flotation for the removal of heavy metals from waste water. The CMR process and equipment is much faster than traditional metals removal processes, takes up less space in you plant, and believe or not, much cheaper than old style sedimentation systems!
CMR uses a combination of chemical and physical treatment to remove all contaminants in one step. Other systems attempt to settle out contaminants but this goes against the nature of oils and greases – they want to float! Contrary to common sense, metal particles in these types of waste streams don’t sink; their small particle sizes prevent easily settling.(This is one reason why traditional methods take so long to process a batch.) Other solids tend to have low molecular weights. So we encourage floating by combining all contaminants with chemistry and micro air bubbles to form highly buoyant, fast rising particles.
The chemistry is mixed in a proprietary plug flow reactor-type floculator. Finally, the large buoyant particles are allowed to rise to the top of the dissolved air flotation unit where they are pulled off by skimmer paddles. The clean water exits the system where it can be discharged to the POTW or reused in the plant.
Influent enters system through the plug flow reactor-type floculator.- Chemistry is introduced into the floculator along with micro-bubbles produced from dissolved air.
- Waste stream with buoyant floc is introduced in DAF chamber.
- Solids rise to the top of the chamber where they form a floating layer of sludge.
- Skimmer paddles move sludge off into the sludge holding tank.
- Sludge is pumped out for dewatering or disposal.
- Clean effluent is available for reuse.