Device for purification of sewage

FIELD: petrochemical and food and other processing industries.

SUBSTANCE: the invention presents a device for purification of sewage and is dealt with designs of sewage treatment plants for purification and averaging of consumption and composition of sewage and may be used for preliminary purification of sewage of the enterprises of processing industries from floating and settling insoluble impurities. The device contains a cylindrical body with a cone-shaped bottomed, a mounted along the axis of the body cylindrical partition, a located above the body reactive water distributor with branch-pipes, a floating device, a rotating rocker arm with a foam pushing plates mounted with the help of a half-coupling to the reactive water distributor at a maximum level of water in the device, a collecting tank mounted with possibility of delivery in it of the circulating water, a pump, a pressure tank-saturator linked by a pressure pipeline with the reactive water distributor. Inside the body there is a ring-type chute, in which the reactive water distributor branch-pipes supplied with diffusers on their ends are placed. The technical result is an increase of efficiency of sewage purification and realization of averaging of consumption and composition of sewage and its purification simultaneously.

EFFECT: the invention ensures increased efficiency of sewage purification and simultaneous realization of averaging of sewage consumption, composition and purification.

1 dwg

 

The invention relates to structures for cleaning and smoothing of consumption and composition of wastewater and can be used for pre-cleaning treatment of the enterprises of processing industry from the pop-up and settling of insoluble impurities.

A device for averaging wastewater concentration of contaminants, which is a tank with vertical partitions, distributive and modular trays. Averaging the composition of wastewater occurs due to separation of flow dividers with different length of stay of individual parts of the flow in the equalizing tank (sewage settlements and industrial enterprises. The guide designer. 2nd ed. - M.: stroiizdat, 1991, page 99).

The disadvantages of this device is the low degree of averaging of the flow and composition of wastewater, loss and rotting sludge in the neutralizer, the deterioration in the result, the quality of the water.

A device for wastewater treatment, which is a tank with distribution trays built into it suspended flotation cell, equipped with a combined mechanism for collecting foam and sludge. Influent wastewater is distributed trays and cleaned from undissolved impurities in the chamber of the flotation. Light impurities flatirons and collected in VI is e foam from the surface of the tank, heavy impurities precipitate and are removed from the bottom of the tank. (Ibid, page 141).

The disadvantages of this device are the complexity of the design and operation of distribution and team systems that are clogged by impurities wastewater, a low degree of averaging of the flow and composition of wastewater. Fluctuations in flow rate and composition of wastewater requires extra averager, because when the device is not sufficiently complete mixing of the liquid and its drainage is performed with a constant level fixed by the position of the outlet of the tray. The device also needs to be cleaned periodically from sticking to the inner wall of dirt.

A device for averaging and mechanical wastewater treatment represents a cylindrical-conical tank with internal baffles, equipped with floating overflow chamber and floating menogonom, and a pipe for supply and drain water, remove the foam and sludge (Compact construction for averaging and mechanical wastewater treatment: Information sheet on scientific and technical achievement No. 89-069. - Kiev: Ukrniinti, 1989, p.40).

The disadvantage of this construction is the design complexity of floating devices for collecting foam and water, low efficiency lighten uneven beginning the wastewater, the possibility of rotting sewage, their weak mixing and insufficient averaging of the composition in the hours minimum flow, high water content collected hiromasa. Leaving the device of wastewater, such as minimal inflow hours, resulting in rotting dirt drop-down sediment quality of the treated water decreases the pH of the environment. The small power plants with one - or two-shift operation, outages wastewater is 8-12 hours, and a marked deterioration in water quality at its contents in the device is observed, for example, for dairy plants in 2 hours.

The closest technical solution of the present invention is a device comprising a vertical cylindrical tank with conical bottom, a cylindrical wall, placed on the axis of the housing, rotating jet dispenser with nozzle, penugonda device that is equipped with the coupling and installed freely between the jet dispenser and the top cylindrical baffle mounted on the dispenser (Patent RU 2083498 C1, 10.07.97. Bull. 10).

In this device the processes of averaging and defend separated in time. Averaging the composition of wastewater occurs over a long period of their accumulation in the cut is rmware by mixing the liquid with compressed air. Defending and remove pop-up impurities is performed only when the maximum water level in the device and in the absence of aeration.

The disadvantages of this device is the need for forced aeration of the liquid during its accumulation in the tank, the low efficiency of wastewater treatment and high humidity deleted hiromasa and sediment due to the short time of their assertion, the significant cost of electricity for the supply of compressed air for mixing liquid.

The problem to which the invention is directed, is to intensify the work of the device and improving the efficiency of wastewater treatment with simultaneous alignment of the (averaged) flow and composition, reducing the volume and moisture to be removed hiromasa.

The technical result is that the process of averaging the flow rate and composition of wastewater occur simultaneously with their cleaning. The cleaning efficiency is increased both by increasing the duration of treatment of waste water, and at the expense of the device of the flotation process (more effective than defending). The implementation of the device of the flotation process simultaneously provides the averaged composition of the wastewater accumulated in the tank, preventing rotting sewage by aeration. Remove (flotation) p is imesa is done all the time, while the accumulation of wastewater in the device to a level close to the maximum. Uniform removal of the clarified water is provided by operation of the float device. Remove pop-up impurities is performed only when the maximum water level in the device. Rotation prohodnogo device is due to the energy of the incoming stream, it turn on and off automatically.

The invention consists in that the device for cleaning and smoothing of consumption and composition of wastewater containing cylindrical tank with conical bottom, mounted on the axis of the housing cylindrical wall, placed above the body jet dispenser with the nozzle, a float device, rotating the rocker with progenie plates, provided with the coupling and installed with the possibility of its connection to the jet dispenser at the maximum water level in the device is further provided with a receiving tank mounted with a possibility of it circulating water pump, pressure tank, a carbonator connected to pressure pipe with a jet dispenser, and inside ring set the tray containing the nozzles of the jet dispenser, equipped with diffusers at their ends.

The essence of izaberete the Oia is illustrated in the drawing, which shows a General view of the device in longitudinal section.

The device consists of a vertical cylindrical body 1 having a conical bottom 2 and an inner cylindrical wall 3, a receiving tank 4, the pump 5 and the pressure tank of the carbonator 6. Above the hull has a jet dispenser 7 with the nozzles 8 with diffusers 9 at their ends. On the inner wall of the annular body is placed the tray 10, which includes a diffuser 9. Within the cylindrical wall 3 is floating device 11 is attached to the bottom of the drainage funnel 12 with the flexible tubing 13. The partition 3 is freely placed the yoke 14 with attached progenie plates 15, which is at the maximum water level in the device relies on the float device 11 and is connected to the jet dispenser 7 via the coupling 16. The device also has a tray 17 and a pipe 18 for collection and removal pop-up impurities, the pipe 19 for removal of sediment from the conical portion of the device, the pipe 20 for discharge of treated water.

Receiving tank 4 is equipped with a pipe 21 for supplying him the circulating water and the supply pipe of the original wastewater 22 installed on the grille 23.

Pressure tank-saturator 6 provided with supply pipes to the wastewater 24 and 25 air, and the pipe is of Toda water-air mixture 26.

The device operates as follows. Initial water through the pipe 22, after passing through the grating 23, served in the receiving tank 4. There, through the pipe 21 serves circulating purified water. From the receiving tank 4 water pump 5 through the pipe 24 is directed into the pressure tank saturator 6, which is supplied compressed air through the pipe 25. In the pressure tank is the saturator 6 is dissolving air under pressure. The air / water mixture through the pipe 26 is served in a jet dispenser 7 and discharged through tubes 8 through diffusers 9 in the tray 10. The rotation of the jet dispenser, administered through the energy of water flowing from the diffuser 9, provides uniform distribution of wastewater at the entrance to the building. Due to the sharp reduction of the pressure at the outlet of the diffuser 9 is released air bubbles from the water-air mixture and flotation of impurities in the tray 10 and the space between the housing 1 and the partition 3. Then the water enters the Central chamber formed by the partition wall 3, and is collected by the funnel 12.

The float device 11 provides a constant flow of effluent and averaging the incoming flow flow. When you change the incoming flow, the water level in the housing and the position of the float device is changed from NMP to nmeh.

Flotation provides office and SPL is of undissolved impurities, promotes mixing and blending, the concentration of impurities and prevent rotting of wastewater during prolonged their stay in the unit. Heavy impurities settle in the conical portion 2 of the device, and which impurities accumulates on the surface of the water. Collection and release pop-up impurities occurs when the level of water in the device nmah. Emerged impurity is collected from the water surface progenie plates 15 during the rotation of the rocker arm 14, which when the water level nmah rises the float device 11 and through the coupling hub 16 is attached to the jet dispenser 7. When the water level decrease in the construction below nmah rocker 14 is detached from the jet dispenser 7 and falls to the partition 3, the movement will stop. Thus, collecting the accumulated foam (hiromasa) is performed only when the maximum water level in the structure, which reduces the ingress of water and moisture hiromasa. The collected hiromasa is given on the tray 17 and the pipe 18, the sediment under the hydrostatic pressure of the water through the pipe 19. Peeled and average flow rate and composition of the waste water is diverted through the pipe 20.

Application of the proposed device for wastewater treatment, for example, dairies allows you to reduce the cost of construction of sewage treatment plants by 25%, to operate the operating costs 1.25 times.

Device for treatment of wastewater containing cylindrical tank with conical bottom, mounted on the axis of the housing cylindrical wall, placed above the body jet dispenser with the nozzle, a float device, rotating the rocker with progenie plates installed with the possibility of connection through coupling to reactive dispenser at the maximum water level in the device, wherein the device is further provided with a receiving tank mounted with a possibility of it circulating water pump, pressure tank, a carbonator connected to pressure pipe with a jet dispenser, and inside the housing has a circular tray which contains the jet nozzles of the dispenser, equipped with diffusers at their ends.



 

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