RU24683U1 - SEWAGE TREATMENT PLANT - Google Patents

Abstract

1. An installation for wastewater treatment, containing tanks connected in series, a sewage supply pipeline connected to the first tank, a purified water discharge pipeline connected to the last tank, a tank for collecting oil products and insulated covers that close the tanks, filters and valves, characterized by that the first tank contains n settling modules, where n ≥ 4, above one of the settling modules there is a tank for collecting oil products and a tray for collecting oil products, located in the upper part of the specified tank, valves are located at the level of the tray in the tank for collecting oil products, filters located in the second and third reservoirs, at the outlet of the first reservoir there is a vertical partition, on one side of which there are m overflow L-shaped pipelines, the upper ends of which are passed through a vertical partition, on the other side of which there are m horizontal overflow pipelines installed in the lower part of the first and second cut ditches, vertical partitions are installed between the second and third reservoirs with the possibility of flowing purified water from the second reservoir into the third from bottom to top through the filtering material of the filters, and the purified water drainage pipeline is L-shaped and its upper end is passed through the wall of the third reservoir. 2. Wastewater treatment plant according to claim 1, characterized in that the number m of the overflow pipelines satisfies the condition m ≥ 1.3. Installation for wastewater treatment according to claim 1, characterized in that expanded clay is used as a filter material in the filters. Installation for wastewater treatment according to claim 1, o

Description

SEWAGE TREATMENT PLANT

The utility model relates to wastewater treatment technology and can be used in installations for the treatment of storm sewage coming from platforms and territories of gas stations, car parks, car enterprises, oil product storage facilities, service stations, garages and other facilities to the requirements of fishery reservoirs.

A known installation for treating wastewater 1, containing an aeration tank, an aerobic stabilizer and a centrally located secondary sump, characterized by increasing the working dose of activated sludge in the aeration tank and reducing the moisture content of stabilized sludge, it is equipped with sludge traps located in aeration tank and aerobic stabilizer with drainage trays installed in to an aerobic stabilizer trap with the ability to move around a horizontal axis with an inclined shield with a hinge, as well as horizontally located in the upper the first part of the installation with a pipeline connecting the drainage tray of the aerobic stabilizer and aeration tank.

Closest to the technical nature of the proposed installation is a wastewater treatment system 2, comprising a construction for treating industrial wastewater, including a sewage supply pipeline, a primary sump with sewage and clarified sewage pipelines, and a sewage treatment plant, including a sewage supply pipeline, a primary sump with pipelines sediment and clarified sewage, aeration tank and secondary sump with pipelines for the removal of purified water and activated sludge circulating and excess. The system is equipped with installed after

primary sump and interconnected aeration tank and a secondary sump with pipelines for discharging treated water and sludge - excess and circulating, and the system is equipped with a pipeline for the flow of part of the clarified domestic wastewater into the pipeline of clarified industrial wastewater entering the aeration tank of the industrial wastewater treatment plant, and the pipeline of excess sludge for domestic sewage communicated with the beginning of the aeration tank of the industrial waste treatment facility.

A disadvantage of the known wastewater treatment plants 1,2 is their structural complexity, due to the large number of functional blocks and nodes.

This drawback is eliminated in the wastewater treatment plant. Wastewater treatment plant, containing series-connected tanks, a sewage supply pipe connected to the first tank, a treated water drainage pipe connected to the last tank, a tank for collecting oil products and insulated lids covering the tanks, filters and valves, the first tank contains n modules - sumps, where 4, above one of the module sumps there is a tank for collecting oil products and a tray for collecting oil products located in the upper part of the specified tank, valves are located on the level of the tray in the tank for collecting oil products, the filters are located in the second and third tanks, at the outlet of the first tank there is a vertical partition, on the one side of which there are t transfer L-shaped pipelines, the upper ends of which are passed through a vertical partition, on the other side of which are placed horizontal overflow pipelines installed in the lower part of the first and second tanks, vertical partitions are installed between the second and third tanks with the possibility of Nia treated water from the second tank to the third from bottom to top through the filter

filter material, and the clean water discharge pipe is L-shaped and

its upper horse is passed through the wall of the third tank, and the number t of overflow pipelines satisfies the condition w 1.

In this case, expanded clay was used as filter material in the filters, and activated carbon was used as the filter material in the filter of the last stage.

The invention is illustrated in the drawing, on which a block diagram of the installation is presented.

The wastewater treatment plant comprises series-connected tanks 1,2 and 3, a sewage supply pipe 4 connected to the first tank 1, a treated water discharge pipe 5 connected to the last tank 3, and insulated covers 6 and 7 covering the tanks 1,2 and 3.

The first tank 1 contains n modules-settlers 8, where and 4.

Pad one of the settling modules 8 is a tank 9 for collecting oil products and a tray 10 for collecting oil products, located in the upper part of the specified tank. At the level of the tray 10 in the tank 9 for the collection of petroleum products are valves 11. In the second 2 and third 3 tanks are filters 12,13 and 14.

In the first tank 1, the partitions 15 and 16 are located. On one side of the partition 16 there are t overflow L-shaped pipelines 17, the upper ends of which are passed through this partition, on the other side of which there are m horizontal overflow pipelines 18 installed in the lower part of the first and second tanks 1 and 2.

The number m of overflow pipelines satisfies the condition t.

Between the second 2 and third 3 tanks, vertical partitions 20 and 21 are installed with the possibility of entering purified water from the second tank 2 into the third 3 from the bottom-up through the filter material of the filters 13 and 14.

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Pipeline 5 for discharging treated water is L-shaped and its upper end is passed through the wall of the third tank 3. A vertical partition 22 is installed behind the last filter 13.

The water level in tanks 1,2, 3 is shown by a dashed horizontal line.

Expanded clay was used as filter material in filters 12 and 13, and activated carbon was used as filter material in the filter 14 of the last stage.

Installation is made in a buried version underground with removable insulated fasteners 6 and 7 located on the surface.

Installation works as follows.

Surface storm water flows into an accumulating tank (not shown in the drawing), in which illuminated substances (sand and clay agglomerates) settle to the bottom, and oil products float to the surface of the water.

After settling, the effluents are fed into the installation through the pipe passage 4 to the first tank 1.

There are two options for the supply of effluents: pump or gravity.

In the first tank 1, the contaminated water enters the sedimentation modules 8, where gravitationally precipitating particles from the ascending water flow, their aggregation and sliding down. Along with this, when water is sedimented, undissolved oil products float to its surface. After passing through the sedimentation modules 8, the concentration of petroleum products is not more than 15 mg / l, and the concentration of suspended substances is not more than 250 mg / l. With the accumulation of oil, a thin film flows into the oil collecting tray 10 and from it through open valves 11 to the tank 9 for collecting oil products.

The sedimentary zone is cleaned through sludge pipes using a sludge pump, and oil products from the tank 9 are removed using another pump (not shown in the drawing).

41 o: Injection is achieved using filtration and sorption.

From the first tank 1, through the overflow L-shaped pipelines 17, water flows upstream on the other side of the partition 16 and then through the horizontal overflow pipelines 18 into the filter 12 of the first stage, where rough cleaning is carried out. The filter 12 is loaded with expanded clay and there is a process of enlargement of finely dispersed contaminants.

After passing through filter 12, the concentration of petroleum products is not more than 4.5 mg / l, and the concentration of enriched substances is not more than -75 mg / l.

Next, the clarified water from the second tank 2 through the partitions 20 and 21 enters the upward flow to the filter 13 of the second stage, which produces a fine cleaning. As a load it uses: - expanded clay, activated carbon brand AG-3, synthetic winterizer and sipron.

After passing through filter 13, the concentration of petroleum products is not more than 0.9 mg / l, and the concentration of enriched substances is not more than -15 mg / l.

For deep cleaning, water is sent to the filter 14 of the third stage.

As a filter load, it uses activated carbon brand AG-3. After passing through filter 14, the concentration of petroleum products is not more than 0.045 mg / L, and the concentration of suspended solids is not more than -1.5 mg / L.

After purification on the filter 14 of the third stage, the purified water enters through the pipeline 5 to the outlet into the reservoir.

The quality of the water after filtration complies with the standards for fishery water bodies. During the cleaning process, precipitation is formed consisting of mineral contaminants that accumulate in the sedimentary zones of the module sumps 8 and filters 12,13 and 14.

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downloads are sent for processing to the sites of a specialized organization.

The casing of the installation can be made of metal or fiberglass in the form of separate blocks, at a greater expense - of reinforced concrete.

The advantages of the installation are:

-lack of secondary sumps, sludge recirculation pumps, co-compressors;

- lack of reagents;

-the installation does not consume electricity (works in gravitational mode);

-installation is self-regulating and does not require constant maintenance.

-installation is simple and reliable both in the device and in operation, durable (at least 30 years), well adapted to work in climatic conditions of central Russia;

-installation is small-sized, portable, made in block execution, has a small mass, which facilitates its installation.

Sources of information:

1. RF patent No. 785225, M. Cl. C02F 3/12, published. 1980.

2. RF patent No. 2001886, M.C. CO2 F 3/12, published. 1993 year

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Claims (4)

1. Installation for wastewater treatment, containing serially connected tanks, a sewage supply pipe connected to the first tank, a treated water discharge pipe connected to the last tank, a tank for collecting oil products and insulated lids that cover the tanks, filters and valves, characterized in that the first tank contains n sediment modules, where n ≥ 4, above one of the sediment modules there is a tank for collecting oil products and a tray for collecting oil products, located in the upper part of the specified tank, the valves are located at the level of the tray in the tank for collecting oil products, the filters are located in the second and third tanks, at the outlet of the first tank there is a vertical partition, on one side of which there are m transfer L-shaped pipelines, the upper ends of which are passed through the vertical partition, on the other hand which contains m horizontal transfer pipelines installed in the lower part of the first and second reservoirs, vertical partitions are installed between the second and third reservoirs with the possibility of cleaned water from the second reservoir to the third from the bottom up through the filter material of the filters, and the piped water outlet is made L-shaped and its upper end is passed through the wall of the third reservoir.  2. Installation for wastewater treatment according to claim 1, characterized in that the number m of transfer pipelines satisfies the condition m ≥ 1.  3. Installation for wastewater treatment according to claim 1, characterized in that expanded clay is used as filter material in the filters. 4. Installation for wastewater treatment according to claim 1, characterized in that activated carbon is used as the filter material in the filter of the last stage.