SU887468A1 - Device for waste water purification - Google Patents

Description

The drawing shows a device for cleaning SEWAGE WATER, longitudinal section.

The device consists of: a housing 1 equipped with a pipeline 2 with a distributor 3 for introducing a water-air mixture and pipelines 4 for draining purified water. In the lower part of the housing 1 a filter 5 is placed. In the upper part there is a flotation chamber and 6, the first part of which is located in the cavity of the damping ground 7 installed in the housing 1 at a distance from its wall and from the wall 8. flotation 6. Conical fuse 7 and wall 8 of the flotation chamber i6 form Zameru 9 for the release of coarse-bodied substances and puffs of air from the water before feeding it to the filter 5. For removing foam there is a scraper 10 And a radial tray I. For removing fungi on the conical grating 7 weighed substances and regenerate the filter 5 is provided iatrubak 12.

The device works as follows.

The pipeline 2 into the chamber (flotation 6 is fed with a sprinkled water previously saturated with air under pressure. - When the pressure is reduced to atmospheric in the chamber of Flotation 6, air in the form of tiny water is released from the wastewater. Bubbles / rise, litter on its surface: litter, a1nnnye contaminants, and suspended substances that are not capable of sorption, precipitate; in the sediment; on the inner noBepxiHOCTb. Of the conical partition 7 and slide to the nozzle 12. The thus cleaned water enters through the slit formed by the conical wall 7 and wall 8 of the flotation chamber 6 into chamera 9, in which the water moves upward with a predetermined spine, air bubbles are released and the final release of explosives. Further, the water is che, the cut is formed by the body. 1 and a conical / partition 7, is fed to the filter 5. The cleaned water is delivered to the consumer by the pipeline 4. The filter is regenerated when water is fed back in the reverse direction through the pipe 4. The filter regenerate moves up, then down, washing the inner surface conical septum 7 sediment caged objects: est. The regenerate is removed from the device through the nozzle 12. This allows not only to use the filter regenerate to remove sediment, and to remove suspended substances (fishing line, clay particles) separately from the foam containing valuable compounds (oil products, fats, organic compounds) .

In the proposed device, the filter capacity and filtration rate are increased due to preliminary release of coarse dispersion substances and air bubbles from the wastewater to the filter, which allows to intensify the wastewater treatment process.

The quality of water purification is also enhanced by the flocculation of suspended solids and the formation of a vzveshennogo filter. Inside the conical partition, conditioned by the nature of the movement of water in the conical partition. At the same time, the placement of the conical partition over the filter provides the highest speeds of water movement and the best conditions during the backwash of the upper dirty part of the filter.

Using a filter regenerator to flush sediment reduces the amount of water needed to remove sediment by 30%. Separate removal of suspended solids and foam from the device avoids contamination of the valuable product - foam concentrate containing, for example, oil products, fats, organic compounds. The construction costs of the plant are reduced by 50% and maintenance costs by 40%.

Form via of the invention

A device for wastewater treatment, including a housing with a flotation chamber and a filter O (M, units for supplying a water-air mixture and draining purified water, collecting and removing foam, which is the purpose of fishing the quality of cleaning and intensification of the process, it is equipped with a conical partition with a nozzle, while the lower part of the flotation cell is located in the cavity of the conical partition.

Source of information taken into account in the examination:

1. Modern equipment for flotation och. Wastewater treatment. M., ZINTI, Himneftemash, 1978, p. 27.

Claims (1)

Claim A device for treating wastewater, including a housing with a flotation chamber and a filter, nodes for supplying an air-water mixture and for removing purified water, collecting and removing foam, characterized in that, in order to improve the quality of treatment and intensify the process, it is equipped with a conical partition with a pipe, the lower part of the flotation chamber is placed in the cavity of the conical septum. Source (information taken into account during the examination: 1. Modern equipment for flotation wastewater treatment. M., CINTI, Himneftemash, 1978, p. 27.