SU1631139A1 - Outlet arrangement for treated waste water - Google Patents

Abstract

The invention relates to drainage, in particular, to devices for discharging and diluting treated wastewater into the sea, lakes, reservoirs. The purpose of the invention is to reduce the concentration of pollutants in the place of issue. In the device for the discharge of treated wastewater, a cylindrical nozzle 1 with a float 2 is freely placed on the top of the supply pipe, which makes it possible to make vertical movements under the influence of waves, while the tip 3 is equipped with to keep the structure in a certain place of the reservoir. With waves in an open pond, the nozzles oscillate in a vertical direction, as a result of which a pulsating flow of water occurs in its lower part due to the difference in hydrostatic pressure. The feed wastewater is intensively mixed with a stream of water pulsating in the nozzle 1, as a result of which the dilution rate increases. Diluted wastewater is poured through the top of the nozzle through the overflow channels 6, made in the float 2. 2 silt

Description

about:

wasp

Feed 100 dod

with so

l

Ground bottom

The invention relates to water disposal, in particular, to devices for the discharge of treated wastewater into the sea, lakes and reservoirs.

The purpose of the invention is to reduce the concentration of pollutants at the place of production.

FIG. 1 shows a device for discharging treated wastewater into a pond, vertical section; in fig. 2 - the same, when the water in the pond is rough.

The device consists of a cylindrical nozzle 1, provided in its upper part with a float 2 for holding it on the water surface in a vertical position. Nozzles 1 is freely installed on the top 3 wastewater discharge. In order to increase stability during the period of excitement, the 3 release heads are reinforced with stretch 4, passing through the cylindrical nozzles through vertical slots 5. The nozzle, freely placed on the discharge tip, allows the upper part of the device to be on the water surface. Wastewater, poured out of the cylindrical nozzle 1, into the reservoir through the washings b, made in the float.

The device works as follows.

In the absence of waves, the water level inside the cylindrical nozzle 1 corresponds to the level of a calm water body. The device works on the principle of a water-jet pump, from the top of the 3 sewage into the cavity of the nozzle 1 the sewage flows, which carries the water of the reservoir into the same cavity through the lower end of the nozzle 1, mixes with a slight dilution and pours onto the surface of the reservoir through the upper end of the cylindrical nozzle through overflow channels 6, cut in the float 2.

Under agitation, when the nozzle 1 oscillates relative to the tip 3 of the outlet, a pulsating flow of water that enters the nozzle through its lower end captures the wastewater and mixes with it. Under agitation, when the end of the nozzle appears on the crest of a wave,

the water level inside it rises slightly when the end of the pipeline is in the depression between the waves, diluted wastewater is poured onto the surface of the reservoir through overflow channels 6. During roughness, the dilution rate in the cylindrical packing increases several times due to increased flow turbulence.

The flow of water flowing out of the nozzle is determined by the formula

Op 0,5tsts.5L / dN1,

where Qcp is the average water consumption through nozzles, m3 / s;

C - the coefficient of consumption, taking into account loss of input and output

nozzle;

S is the cross-sectional area of the packing, m2; g - free fall acceleration,

m / s2;

0Н - amplitude of the wave height minus friction losses along the nozzle length, m.

Since the dilution ratio is determined by the ratio of the water flow through the inflow to the wastewater flow rate, by knowing the true wastewater flow rate and using the above formula, it is possible to determine the degree of mixing of the reservoir water with the wastewater inside the nozzle.

thirty

Claims (1)

Invention Formula A device for discharging treated wastewater into a reservoir containing a feed line with a tip, a float and an extension pipe, one end of which is attached to the bottom, characterized in that, in order to reduce the concentration of pollutants at the point of release, it is provided with a cylindrical nozzle placed above the tip and made with vertical slits, while the float is made - with overflow channels and placed in the upper part of the nozzle, and stretching is passed through the vertical slots of the nozzle and the other ends connected to the tip its upper part. FIG. 2