SU1816481A1 - Water cleaning filter - Google Patents

Description

The invention relates to a technology for the purification of iodine by filtration and can be used to purify natural and waste water.

. The purpose of the invention is to increase reliability in operation and quality of cleaning.

Figure 1 shows a General view of the proposed filter: figure 2 - technological diagrams of the filter, and - in filtering mode; b - in the washing mode.

The proposed filter (see Fig. 1) includes a cylindrical body 1 with a bottom 2. a roof 3, inside of which a pipe 4 is placed, which supplies raw water to the aerator 5. a water distribution system 6 (drainage) for draining the filtrate and supplying washing water, an air distribution system 7 for supplying air during washing and a wash water reflector 8, coaxially mounted with a raw water reflector 9 and connected by a pipe 10 that discharges the wash water, with an annular groove 11 located on the outside along the perimeter of the cylindrical body 1 and connected to the pipe 12, discharging contaminated water into the sewage system.

The housing 1 is filled with filtering material 13, the composition and layer height of which are determined by the technological requirements for a particular water source.

The upper edge of the housing 1 and the wash water reflector 8 are made at the same mark, the visor 14 is located above the overflow windows 15 and serves to prevent the splashing of raw water outside the filter housing.

The proposed filter works as follows. Raw water through the pipe 4 is fed into the aerator 5. which it in the form of jets and drops falls down under the influence of gravity (see figa). In this case, the main part of the jets (drops) breaks up onto the raw water reflector 9, is reflected from it and additionally interacts with oncoming jets (drops).

Intensive aeration of raw water occurs, dispersing it to water dust, as a result of which the maximum amount of dissolved gases (ammonia, hydrogen sulfide, etc.) is removed from the water and at the same time it is saturated with oxygen.

necessary, for example, in iron removal and demanganization processes. Next, aerated water, as usual, is filtered through a filter material 13, where it is freed from impurities, taken by a water distribution system 6 and supplied to the consumer.

. After working out (silting up) of the filter material 13, the latter is washed with a reverse flow of water and air supplied to the lower part of the filter through the water distribution system 6 and the air distribution system 7 (see Fig. 2b).

Contaminated wash water hits the reflector of the wash water 8 and enters the annular groove 11 through the overflow window 15 and then through the pipe 12 is discharged into the industrial sewer. Operation cycle completed.

Compared with the base facility, which is taken as four filters of a water treatment plant in the city of Beregovo, Transcarpathian region, used to purify groundwater from iron impurities, the proposed solution allows to reduce water consumption by washing filter material by 20-50% and by about 1, 5 cuts to increase the duration of inter-washing periods (filtering cycles).

Claims (1)

Claim A filter for water purification, including a housing that filters the loading, a distributor of the initial liquid located along the axis of the housing above the loading, made with downward-directed openings, means for supplying and discharging the treated and rinsing water, are distinguished by this. that, in order to increase the reliability in operation and the quality of cleaning, it is equipped with a conical reflector for source water placed along the housing axis between the distributor and the loading and a reflector for washing water made in the form of a return cone, and the means for removing the washing water is made in the form of an annular chute, mounted on the outer surface of the housing.