초록 ▼

The invention involves a process for the flocculation of matter suspended in water. According to the invention, the water is passed through a granular medium in a fluidized bed, without prior saturation of the granular medium in a fixed bed, and flocculated aggregates are collected downstream and su

The invention involves a process for the flocculation of matter suspended in water. According to the invention, the water is passed through a granular medium in a fluidized bed, without prior saturation of the granular medium in a fixed bed, and flocculated aggregates are collected downstream and subjected to settling or some other liquid/solid separation procedure, in order to obtain an effluent which is partially freed of its pollution.

대표청구항 ▼

A process for separating particles selected from the group consisting of organic particles, inorganic particles, and mixtures thereof of suspended matter from water comprising the steps of: (a) providing in said water sufficient bacteria to secrete an effective amount of flocculating agent, and pass

A process for separating particles selected from the group consisting of organic particles, inorganic particles, and mixtures thereof of suspended matter from water comprising the steps of: (a) providing in said water sufficient bacteria to secrete an effective amount of flocculating agent, and passing the water through unsaturated granular material as a fluidized bed to flocculate into aggregates said bacteria and said particles in said fluidized bed, (b) collecting the flocculated aggregates downstream from the fluidized bed, and (c) subjecting the water to a suitable liquid/solid separation technique, whereby separately a liquid effluent and solid aggregates of the flocculated particles are produced wherein the ratio of the velocity of said effluent to the minimum velocity of the granular material is between 1.1 to 15, the particle-size of the granular material is between about 50 m1 cm, and the density of the granular material is between 0.8 and 3 g/cm3.