SU1242198A1 - Apparatus for cleaning process effluents from suspensions - Google Patents

Description

12

The invention relates to Preliminary.

body cleaning of household and industrial wastewater from suspended particles by gravity separation method.

The purpose of the invention is to increase the effectiveness of wastewater from suspended matter.

FIG. 1 shows a device for the purification of industrial waste: suspended sewage, a general view; in Fig.2 - section aa in Fig.1.

A device for the purification of industrial wastewater from suspended matter; d consists of body 1, supply line 2, equipped with a loading chamber 3, and a discharge line

4, equipped with a discharge chamber

5, partitions 6 inside housing 1 with openings 7 in the middle of 30 cm in height, coinciding in size

and coaxially arranged, respectively, inlet 2 and outlet 4 pipelines, nozzles 8 for removing sediment located in the lower part of housing 1, and an oil collecting tray 9 for removing grease installed above drain pipe 4, overflow fin 10 intended to drain grease tray 9. The upper edges of the partitions 6 are located below the outlet of the loading chamber 3.

The device works as follows.

For sewage treatment of m sokombinats from suspended sediments from the latter, before the sand catcher-grease trap of the yard industrial sewage, industrial waste water with all suspended solids bucket runoff is fed into the loading chamber 3, from where under the pressure generated by the waste water flowing through supply pipe 2 is horizontal a flow of 30 cm in height enters the housing I, filled with water, divided by partitions 6 into volumes. In this case, the number of partitions is chosen in such a way that the distance between them is not greater than the width of the body of the device I. Then a horizontal stream of wastewater formed by coaxial holes 7 of the partitions 6 of the inlet 2 and outlet 4 pipelines, as well as high-pressure water flowing out of the openings 7 is directed to the outlet pipe 4.

five

0

The intensive mixing of the moving water stream, with still water in the volumes above and below the latter, is excluded due to their different density caused by different temperatures, as well as salt and sludge saturation, namely: industrial wastewater has a temperature of 30-40 C. Approximately the same temperature has the flow entering the housing 1. The temperature of the non-MUTE water in housing 1 is neither the flow temperature nor the flow density of the sewage according to physical laws lower than the density of the stationary liquid. Thus, the moving stream does not mix with the still water beneath it.

The moving stream does not mix with the still water above it, since the discharge from the stream, Sir, having the temperature of the stream, rises up through the wastewater. 5 In addition, the dispersed fatty saturation of water in the upper zones of the volumes of the stationary liquid makes the density of this water lower.

Thus, a thin layer of intersected volumes of still water, intended for cleaning the production runoff under the action of gravity, is divided into three phases: fat and other lighter than. water is suspended, heavy suspended and water released from them. Due to the small thickness of the stream, fat is quickly released from it and enters the stationary water zone, where its horizontal movement immediately stops and it rises up and accumulates on the surface the upper part of the fixed volumes of liquid above the upper edges of the partitions 6 and then is removed from the device through the tray 9. Similarly to cleaning of fat particles, but in the opposite direction, the wastewater is cleaned from tons of suspended matter.

In the first volume of the stationary liquid, the largest and heaviest mineral substances are precipitated below the stream. In the subsequent obj 55-poppies, the lighter ones are deposited, and in the latter the silt suspensions are deposited. Then the settled suspensions are removed from the housing 1 by means of nozzles 8.

31242198

Sewage stream treated from. the wire of light and heavy suspensions is guided along the discharge pipe

wire

A and through the loading chamber 3 beyond the device.

FIG. 2

Claims (2)

1. DEVICE FOR CLEANING PRODUCTION WASTE WATER FROM SUSPENSIONS, comprising a housing divided into successive compartments by vertical transverse partitions with openings in the middle part, inlet and outlet pipelines, an oil collecting tray, characterized in that, in order to increase the efficiency of wastewater treatment from suspended, it is equipped with nozzles for removing sediment located in the lower part of the housing, loading and unloading chambers mounted respectively on the inlet and outlet pipelines, located dix coaxially apertured partitions, wherein weep tray arranged above the discharge pipe, and an inner diameter equal to the diameter pipelines partition openings. 2. The device according to claim 1, characterized in that the upper edges of the partitions are located below the outlet of the loading chamber. SU. „, 1242198 A