RU1813491C - Water treatment plant - Google Patents

Abstract

Usage: at water supply, agricultural water supply stations, which prepare water for household and drinking water and produce it. Summary of the invention: the water purifier comprises a clarifier V with an ejected sludge recirculation system and a sediment compaction section, a filtration chamber with a charge, a charge washing chamber, and hydraulic elevators. A means for washing the charge is installed in the charge washing chamber connected to the washing water supply pipe. The filtration chamber is located on the outer surface of the clarifier. 1 ill. -5 and

Description

The invention relates to a liquid purification technique and is intended for use in agricultural water supply plants for preparing water for household, drinking, and industrial needs.

A combined water treatment device is known, comprising a conical bottom housing, cooteeTCTBeHHo clarifier with suspended sediment and a quick filter, with a drainage distribution system, and between them at a distance a granular layer for coagulating flakes suspended sediment, nozzles for supplying source water, drainage of wash water and filtrate Ј0 „

However, this device requires an increased volume of the building to accommodate it and does not provide a high degree of cleaning of the load.

Closest to the invention according to the technical scheme: is a monoblock water treatment plant Sigta YK, containing a clarifier with suspended sludge and a filter. The peculiarity of the device which consists in the fact that the quick filter is located in the middle of the clarifier, and the cereal compaction chamber is located under the filter

. The disadvantage of this installation is the frequency of operation due to the filter being turned off for washing, the need for a large area for

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its placement due to the use of a quick filter with a horizontal filter surface with

The purpose of the invention is to reduce the design volume of the water purifier and to improve the washing quality of the filter media. For this, the water purifier is equipped with a filter with a radial movement of water located along the outer perimeter of the clarifier, and the means for additionally washing the load is made in the form of a tubular ring with slotted caps located in the washing chamber, with pipes for removing the charge from the washing chamber to the filter.

The figure 1 shows the water purifier in the context of 0

The water purifier includes a casing 1, round in plan, separated by vertical annular baffles of mesh 2 and tinplate 3 into a section of clean water k, a filtration chamber 5 and a section of partially clarified water 6, and also impermeable baffles into sections of suspended sediment 7, clarification water 8, sediment compaction 9 “There is a hydraulic elevator 10 with a pulp conduit 11, an integrated washing chamber for the filter load 12 with means for washing the load 13, and a hydraulic elevator for feeding the recirculation sludge 1. by pipelines for draining the washed filter load from the washing chamber to the filter 15, discharging clarified water 16, suctioning the clarified water from the sediment compactor 17, discharging sediment to the sediment compactor 18, discharging sludge from the sediment compactor 19 and washing water from the washing chamber 20, and supplying the source water 2, input reagents 25, drainage of clean water 26.

The water purifier works as follows: 0

The water to be treated mixed with the reagents is piped 21 to the bottom of the cone-shaped insert and passes upward through the suspended sediment layer of section 7 “Partially clarified in section 8 is collected by a system of hole pipes 2k and is discharged through pipe 16 to the filter section 6 for further purification by filtration,

 The excess sediment with part of the water through the pipe 18 is continuously discharged per second

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Sludge compaction

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The water from section 8 to section 9 is caused by the withdrawal from the upper part of the latter through the precipitator 17 of the part of the water, the flow rate of which is regulated by the valve installed on it. A sealed and partially dehydrated dock from section 9 is discharged through pipe 19 to discharge 0

It is known that at commonly used doses of coagulants, the degree of supersaturation of water with poorly soluble hydrolysis products corresponds to a metastable zone, where the supersaturation energy may be insufficient for the formation of solid phase nuclei in the zone of suspended sediment. In order to prevent this, it is desirable to coagulate suspended flocs and the increase in its hydraulic size provides for the recirculatory introduction of a certain amount of sludge from section 9 together with the source water into section 7o. uschestvl an external gidroele- Vator

Partially clarified water from section b is distributed between the plates of the louvered partition 3, passes radially towards section 4 through a slowly lowering layer of the filter load 5 and a perforated mesh partition. 2. From section k, clean water - no pipe 26 is discharged into the clean water tank „

The contaminated filter charge is taken by the hydraulic elevator 10 from the lower part of the filter section 5 and fed through the slurry line 11 to the washing chamber 12, where it is washed from the suspension particles and returned to the filter section k0 through the pipes 15. The washing water from the washing chamber 12 is discharged through the pipe 20.

Claims (1)

The use in practice of water purification of the proposed water purifier, containing a clarifier with suspended sediment and a radial filter in one housing, allows to expand its field of application, reduce the volume of construction and filter load, capital investment and operating costs for the construction and operation of wastewater treatment plants Water purifier including pressure clarifier with ejector estimate Editor Edorina Compiled by Н0Nikolaev Tehred MoMorgental Proofreader N.Keshel