RU6390U1 - WATER TREATMENT PLANT - Google Patents

Description

WATER PURIFICATION PLANT A utility model relates to the field of purification of wash water of filtering facilities and can be used at drinking water supply facilities. The process of operating filter facilities is directly related to the need for periodic regeneration of filter media. Regeneration is carried out by washing the filter load with water or a water-air method. The filter that passes through the wash water contains a significant amount of contaminants, which leads to the need to clean it before returning to the head of the facilities or dumping it into the sewer or body of water. There are various schemes of filtering facilities, including technological units for the treatment of wash water. The closest in technical essence to the proposed one is a water treatment plant, including a clarification filter with pipelines for supplying source water for purification, filtrate discharge, supply and removal of washing water, a tank for collecting washing water equipped with a recirculation pump, a filter for cleaning washing water with particle size distribution non-uniform floating loading and piping for removing the wash water filtrate, supply and drain of the secondary washing water, a secondary wash water sump and a device for dewatering sedimentation. / USSR Copyright Certificate No. 969293, B01D 37/00; C02F1 / 00, 1982 /. In the known device, the source water is fed for cleaning to the clarification filter through the feed water supply pipe, the resulting filtrate is removed from the filter through the filtrate discharge pipe. According to MKI6S02R 1/00

At the end of the filter cycle, the loading of the clarification filter is regenerated by washing it with water supplied through the wash water supply pipe. The wash water withdrawn from the clarification filter is homogenized to a state of uniform suspension by creating a turbulent movement of water using a recirculation pump, and then filtered on the filter to clean the wash water through a granulometrically inhomogeneous floating charge in the direction from top to bottom as the size of the granules decreases. The wash water filtrate is removed from the filter and can be used as a wash water of a clarification filter. At the end of the filter cycle, the filter load for cleaning the wash water is regenerated by a downward flow of water. The resulting secondary wash water is sent to sedimentation, and the precipitate formed as a result of sedimentation is subjected to dehydration.

A disadvantage of the known installation is the formation of secondary wash water, which in turn requires cleaning, which leads to an increase in the duration of the treatment process and the need to allocate significant areas for sedimentation tanks and equipment for sludge dewatering.

The technological effect of using the proposed installation is to reduce the area of structures, eliminating the possibility of secondary pollution and reducing cleaning time.

Installation for water treatment is shown in the drawing.

The installation includes a clarification filter 1 with pipelines for supplying raw water for cleaning 2, for removing the filtrate 3, for supplying washing water 4, for removing washing water 5, a filter for cleaning washing water 6, made in the form of a removable cartridge filter and a pipeline

drainage of purified wash water 7. The installation may be equipped with an intermediate tank 8 with a booster pump 9 installed in front of the wash water filter and / or a receiving tank 10 with a wash pump 11 installed after the filter for cleaning the wash water.

Installation works as follows.

The source water through pipeline 2 is fed to the clarification filter 1, from where the purified filtrate is discharged through pipeline 3. At the end of the filter cycle, the loading of the clarification filter is regenerated by washing it with water supplied through the washing water supply pipe 4. During the passage of the washing water through the filter, it becomes saturated with contaminants washed from the filter load of the clarification filter. Contaminated wash water is removed from the filter 1 through the wash water discharge pipe 5 and fed to the removable cartridge filter 6 for cleaning, from where the purified wash water is dumped into the sewer through the wash water discharge pipe 7. The spent removable elements of the cartridge filter 6 are replaced with new ones and disposed of or regenerated depending on the material from which they are made.

If it is necessary to average the supply of contaminated washing water to the cartridge filter 6, the water after washing the clarification filter is accumulated in the intermediate tank 8, from where it is fed by the booster pump 9 to the cartridge filter 6. The purified washing water can be supplied to the receiving tank 10, from where the washing pump 11 into clarification filter 1 as wash water.

Thus, the proposed technical solution eliminates the secondary pollution of the environment with contaminated wash water,

to reduce the area of structures due to the elimination of the need to allocate significant areas for sedimentation tanks and equipment for dewatering sewage sludge, as well as to reduce the treatment time.

Claims (2)

1. Installation for water purification, comprising a clarification filter with pipelines for supplying source water for purification, filtrate removal, supply and removal of washing water and a filter for cleaning washing water, characterized in that a removable cartridge type filter is used as a filter for cleaning washing water. 2. Installation according to claim 1, characterized in that it is equipped with an intermediate tank with a booster pump installed in front of the filter for cleaning the washing water, and / or a receiving tank with a washing pump installed after the filter for cleaning the washing water.