The present application discloses a method and apparatus for settling particles from waters that come out of plants that produce waste waters with hazardous components, utilizing vacuum power generated by vacuum generator down the waist water draining line. The method comprising a device with separation and sedimentation chamber, that allows phase separation through a unique cyclone-generating design, which leads to a filtering-chamber equipped with a dual pore-size filter that allows significant segregation of particles by particle size and mass, and thus allows highly efficient separation of hazardous particles from the waste water, which could exit the apparatus of present invention with significantly low content of hazardous particles.
