SU1556711A1 - Apparatus for purifying water - Google Patents

Abstract

The invention can be used for the treatment of natural and waste waters. The purpose of the invention is to increase the efficiency of the water purification process on the granular filter and reduce the consumption of wash water. The device consists of a housing 1, divided by a partition 2 into flocculation chambers 3 and a settling tank 4 with granular filters 5 and 6, installed by dyachas one above the other to form a five chamber 16, equipped with a secondary reagent supply pipe 18 and a paddle stirrer 17. The case is provided with supply of liquid to purification 7, supply of wash water 8, removal of sludge 14, removal of purified 12 and wash 13 of water. The granular filters are placed on the drainage bottoms 9 and 10, and the flocculation chamber 3 is provided with a lid 15. The advantage of the device is that water purified on the filter of the first rus is additionally mixed with the secondary reagent in the five-chamber chamber 16, and the mixing process is intensified the mixer installed in it. The mixer also contributes to the process of washing the granular load. 1 il.

Description

The invention relates to a technique for the purification of natural and waste waters and can be used at stations preparing water for industrial and drinking water supply.

The purpose of the invention is to increase the efficiency of the water purification process on the granular filter and reduce the consumption of wash water.

The drawing shows a water purification device, a general view.

The water purification device consists of a housing 1 divided by a waterproof partition 2 into a pressure swirl chamber 3 of flocculation and a settling chamber 4 with a granular filter of the first 5 and second 6 Russ. To the pressure vortex chamber 3 flocculation in the upper part there is attached a water supply pipe 7 mixed with primary reagents. To the settling chamber 4 in the upper part is attached to the pipeline 8 supply of wash water. The filter loading of the filter of the first Russ is placed on the drainage bottom 9, and the second - on the drainage bottom 10. In the upper part of the device there is a wall pocket 11 to which the pipeline 12 for discharging purified water and pipeline 13 for discharging the washing water are attached. In the lower part of the device is located the pipe 14 for dumping the accumulated sediment. The flocculation chamber is closed by a lid 15, which provides the overpressure created inside the chamber to overcome the water pressure losses in the flutter load. Between the filter of Russes 5 and 6, there is an interstitial chamber 16 equipped with a paddle stirrer 17 and a secondary reagent supply nozzle 18.

The device works as follows.

Water mixed with the primary reagents, through line 7, enters the pressure vortex chamber 3 flocculation, in which the flakes agglomerate, and reaches the bottom of the chamber. In the place where the inclined partition 2 ends, the flow turns into a settling chamber 4; at the turn and in the settling chamber 4, partial clarification of the water occurs. Next, the partially depleted water through the drainage bottom 9 enters the filter of the first tier 5, in which it is mainly cleaned from suspended and partially from humus substances. In an international chamber 16 equipped with a secondary reagent supply nozzle, the reagent is mixed with water that has been cleaned on the first floor. The mixing occurs both due to the rotation of the paddle stirrer 17, and due to the expanding form

0

0

50

0 5

five

0

Noah cameras, which, complement each other. create the desired velocity gradient necessary to optimally mix the input reagent with the incoming water.

The partially purified water, mixed with the required reagent in the interstitial chamber 16, is fed to the purification by the zenith filter 6 of the second river, which operates in the mode of contact coagulation. In this filter, final purification of humic and mineral substances takes place. The clarified water enters the wall pocket 11 and is discharged through line 12 to the consumer.

When the filter capacity of the filters of Russ 5 and 6 is exhausted, they are washed with water, feeding it through conduit 8 through the settling chamber 4 and the drainage bottom 9 directly into the filter loading of the bottom Rus 5 filter from bottom to top. During the washing process, the filter loading expands and fills the chamber 16, and intensive cleaning from soils is carried out using a paddle mixer 17, creating the necessary velocity gradient for regenerating the load, thereby reducing the consumption of wash water. Next, the wash water enters the filter of the second Rus 6 through the drainage bottom 10 and washes it upwards. Wash water is collected by the wall pocket 11 and discharged through line 13 to the sewer.

The implementation of the inter-chamber chamber 16 of the expanding form and the placement of a paddle stirrer in it, which also creates the required speed gradient when washing the filter load of the lower rusher filter, contributes both to an increase in the efficiency of the water purification process in the filter loading and to a decrease in the wash water consumption.

Claims (1)

Invention Formula A water purification device comprising a housing divided by a sloping partition, not reaching the bottom, into a flocculation chamber, provided with a lid with inlet pipe, and a settling chamber with inlet and outlet pipes and a granular filter located in its upper part, characterized by the fact that, in order to increase the efficiency of the water purification process on the granular filter and reduce the consumption of wash water, the latter is made in the form of at least two Rusa with the formation of an inter-chamber, equipped with a stirrer Oh and the secondary reagent supply pipe.