RU113263U1 - SEWAGE TREATMENT PLANT - Google Patents

Abstract

Wastewater treatment plant, characterized in that during its operation, a complex treatment of contaminated water is carried out, consisting of functional blocks: preliminary treatment, which serves for primary water purification by separating large fractions from it by filtration and settling; a coagulation-flotation unit, where water is treated in a hydrodynamic cavitator and mixed with an ozone-air mixture generated from atmospheric air in a UV lamp, the interaction of pollution particles with the added coagulant, their enlargement and removal through ozone flotation; block of post-treatment and disinfection, providing post-treatment of water by filtration with the use of simultaneous treatment with ultrasound and UV radiation at the final stage.

Description

The utility model relates to the field of ecology, in particular, integrated wastewater treatment. Refers to devices for the preparation and disinfection of water, the principle of which is based on the use of several chemical components and physical influences to obtain clean water in a closed loop.

The installation is designed to treat the following types of water: waste water (fecal and domestic), natural water from open and underground sources for technical purposes.

The station consists of three functional blocks: pre-treatment, coagulation-flotation, post-treatment and disinfection.

The first block is used for primary water purification by isolating large fractions from it through filtration and sedimentation.

In the coagulation-flotation unit, water is treated in a hydrodynamic cavitator and mixed with an ozone-air mixture generated from atmospheric air in a UV lamp, the interaction of pollution particles with the added coagulant, their enlargement and removal by ozonoflotation.

The tertiary treatment and disinfection unit provides tertiary treatment of water by filtration using, at the final stage, simultaneous treatment with ultrasound and UV radiation.

Schematic diagram of the installation for wastewater treatment is presented in figure 1.

Known devices of stationary complexes and wastewater treatment plants described in sources [1], [2], [3], [4], [5] and mobile ship [6], [7], [8], [9] .

The closest in technical essence is the utility model RU 93390 "Installation of water purification".

Common disadvantages of these objects are the following:

- unsatisfactory mass and dimensional indicators of installations and complexes;

- the duration of the processing process, due to the multi-stage;

- the need for several consumables (chemicals, replaceable cartridges, etc.);

- design complexity;

- high power consumption;

- treated water does not always meet the requirements of regulatory regulatory documentation.

The objective of the utility model is to increase the efficiency of wastewater and natural water treatment.

The technical result of the utility model consists in the development of a wastewater treatment plant that provides lower energy consumption, increases the efficiency of water treatment, increases the reliability of the entire installation while reducing the functional unit - the ozonizer unit.

The number, purpose and operation of the functional units of the installation provide a complete and comprehensive solution to the task.

A similar installation can be used for the comprehensive treatment of contaminated wastewater and natural waters for the supply of technical (circulating) water to individual industries, enterprises, organizations, ships, pools, small municipalities, etc.

The proposed utility model will allow for complete comprehensive treatment of wastewater and natural waters using the processes of filtration, sedimentation, ozonation, cavitation, coagulation, flotation, UV and ultrasound (US) radiation for the purpose of their use for water supply (including recycling), as well as will improve the environmental situation, reduce energy consumption and increase the reliability of the installation due to the complete rejection of the ozonation unit. At the same time, a UV-radiation lamp combined with an ultrasonic emitter performs three functions at once: standard - ultrasonic treatment, water treatment with UV rays, and also additional - generation of an ozone-air mixture. This solution will reduce the overall dimensions of water treatment plants, simplify their design and comprehensively automate the work process.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of a wastewater treatment plant. The scheme is made in the form of graphical symbols of elements that are functionally connected by lines of movement of liquid, sludge and ozone-air mixture.

The first block consists of a pre-filter screen (pos. 1), an initial wastewater tank (item 2), a secondary filter screen (item 3) and a slurry tank (item 4).

The coagulation-flotation unit consists of: a high-pressure pump (pos. 5), a hydrodynamic cavitator (pos. 6), a mixer (pos. 7), a metering pump (pos. 8), a coagulant flow rate (pos. 9), a coil (pos. .10), a flotator (item 11).

The post-treatment and disinfection unit includes: a centrifugal pump (pos. 12), a sand filter (pos. 13), a UV lamp (pos. 14) combined with a U3-emitter.

IMPLEMENTATION OF A USEFUL MODEL

The result is achieved by the fact that the wastewater received for processing undergoes a comprehensive treatment in accordance with the schematic diagram of the wastewater treatment plant shown in Figure 1, as follows.

The source contaminated (natural) water enters the pre-treatment unit through a strainer (item 1), where coarse contaminants are separated, into the source water tank (item 2), which serves as a sump. Heavy fractions precipitate here, which then enter the sludge tank (item 4).

Then the wastewater is supplied by a high-pressure pump (pos. 5) through a secondary filter (pos. 3) to the hydrodynamic cavitator (pos. 6). In this device, highly effective saturation of the treated water with an ozone-air mixture generated in a UV lamp (item 10) from atmospheric air occurs. At this stage, the primary processes of oxidation of impurities by ozone and partial disinfection of water by cavitation take place.

After that, water enters through a mixer (pos. 7), into which a coagulant is supplied by a metering pump (pos. 8) from a supply tank (pos. 9), into a coil (pos. 10), where the processes of coagulation of impurities are carried out. The length of the coil is determined in such a way that the coagulation process proceeds most fully, but sludge is not yet released from the treated water.

At the next stage, water is supplied to the inner shell of the flotator (pos. 11), where the ozonoflotation process takes place, after which it enters the outer shell, the sludge from which is removed to the tank (pos. 4). The purified water is taken by a centrifugal pump (pos. 12) from the outer shell of the flotator and sent to a sand filter (pos. 13), where the remaining impurities are separated by filtration.

The final stage is the purification of water in a UV lamp with a U3 emitter (pos. 14), providing the most complete post-treatment and disinfection of water.

Purified water is discharged into a pond, sewer or sent to consumers for technical needs.

Thus, the number, purpose and operation of the functional units of the installation provide a complete and comprehensive solution to the task.

A similar installation can be used for the comprehensive treatment of contaminated wastewater and natural waters for the supply of technical (circulating) water to individual industries, enterprises, organizations, ships, pools, small municipalities, etc.

The proposed utility model will allow for the complete comprehensive treatment of wastewater and natural waters using the processes of filtration, sedimentation, ozonation, cavitation, coagulation, flotation, U3 and UV radiation for the purpose of their use for water supply (including recycling), and will also improve environmental situation, will reduce energy consumption and increase the reliability of the installation due to the complete rejection of the ozonation unit. At the same time, a UV radiation lamp combined with a U3 emitter performs three functions at once: regular - treatment of water with ultrasound and UV rays, and also additional - generation of an ozone-air mixture. This solution will reduce the overall dimensions of water treatment plants, simplify their design and comprehensively automate the work process.

BIBLIOGRAPHIC LIST

1. Patent of the Russian Federation RU 2404133. Installation for wastewater treatment.

2. Patent of the Russian Federation RU 2344999. Installation for wastewater treatment.

3. Patent of the Russian Federation RU 2359919. Installation and method of wastewater treatment.

4. Patent of the Russian Federation RU 98123544. Installation for ozonation of water.

5. Patent of the Russian Federation RU 2092448. Method for cleaning and disinfecting water.

6. Patent of the Russian Federation for utility model RU 93390. Water treatment plant.

7. Brodach M.M., Shilkin. N.V. Installation of wastewater treatment Living Machine // Plumbing. - 2002. - No. 6.

8. Etin V.L., Plotnikova V.N., Naumov B.C. Environmental safety of ships and industrial enterprises of water transport: A course of lectures for students of specialties 14.01, 14.02, 24.02, 33.02. / V.L.Etin, V.N.Plotnikova, V.S. Naumov. N. Novgorod: VGAVT, 1997 .-- 208 p.: Ill.

9. Johansson M., Lennartsson M. Sustainable wastewater treatment methods for single-family homes // Green World website,

Claims (1)

Wastewater treatment plant, characterized in that during its operation a complex treatment of contaminated water is carried out, consisting of functional blocks: preliminary treatment, which serves for primary water treatment by separating large fractions from it by filtration and sedimentation; coagulation-flotation unit, where water is treated in a hydrodynamic cavitator and mixed with an ozone-air mixture generated from atmospheric air in a UV lamp, the interaction of pollution particles with an added coagulant, their enlargement and removal by ozonoflotation; a unit for tertiary treatment and disinfection, which provides tertiary treatment of water by filtration using, at the final stage, simultaneous treatment with ultrasound and UV radiation.