Method and device for the purification of waste water

 

(57) Abstract:

The device and method of purification of waste water generated at facilities for washing a vehicle, includes a first tank receiving waste water, a second tank, receiving the effluent. The first tank is connected through overlapped first pipeline with the third tank is filled through a low pressure and has the ability to Samooborona when the preset filling level, which, on its part directly or indirectly connected to the second tank. In the second tank containing effluent, or other tank is the water-jet pump, the suction side of which is connected with the third tank through the overlapped second pipeline, and the suction side can be connected with the tank, receiving the sludge. The invention allows to eliminate from the system the individual slurry with a high degree of wastewater treatment. 2 C. and 12 C.p. f-crystals, 5 Il.

The invention concerns a method and device for the purification of waste water, especially waste water generated at facilities for washing vehicles.

For disposal of sewage produced on astrautsa in slampiece, then through the catch can be directed into the channel. Verification of wastewater disposed into the sewer, shows, however, that the degree of purification often does not meet current regulations. There is also the undesirable high consumption of water, as water is used mainly cannot be reused.

The basis of the present invention have the task of improvement of the device described above and, accordingly, of the way so that wastewater treatment will be sufficient, eliminating the need to use, on the one hand, conventional slurry, and, on the other hand, costly sewage treatment facilities. It is possible to compact design and smooth operation that will allow for installation in already existing installations washing.

From the Federal Republic of Germany patent 4040007 A1 is known a device for washing cars, working on self-service basis, on which the generated wastewater is treated, as by mechanical means, or by chemical means, such as coagulating means. The purified waste water pass through quite bulky tanks, Viy, leading to the formation of sludge.

Wastewater treatment method after installation for washing vehicles is known from European patent EP 0436090 A 1, according to which purified water is mixed with the activating process of cleaning chemicals such as coagulating means and the air.

The task of the device according to the invention is solved mainly due to the characteristics contained in paragraphs 1 and 4 of the claims.

The form derived from the additional claims.

In accordance with the invention, the purified waste water is served waterjet pump that feeds the treated or pre-treated wastewater.

By means of reduced pressure created by the water jet pump, waste water from the unit for cleaning, going in the first tank are absorbed into the third tank that can be emptied independently. For this purpose the tank from the bottom can be closed shut-off element made in the form of a cap provided with a counterweight, this locking element can independently be opened after reaching a certain number of filling materials for a specific UB is tion is closed, due to the presence of the counterweight, and during the emptying can podkashivatsya through leaks air. Consequently it may be selected design, you can borrow from the Federal Republic of Germany patent 3032503 C2.

The absorption of the waste water can be controlled so that water intake during the first two minutes to calm down before it will start to go down during the period of predominantly 15 seconds.

In the sump prescribed for the third tank is separated sludge, oil and water, whereby the oil is separated through the oil separator, the slurry is sucked from the bottom of islamologists and served in the capacity for sludge. Moving sludge is produced by the low pressure generated by water-jet pump.

For the implementation of cleaning the sludge is washed with purified water, which is taken from the receiving tank, which is located under the bypass device of the second tank. Water going into the tank for sludge and designed to clean the sludge is sucked under the action of reduced pressure in the third, independently abarognosis tank.

In order scalabrino can be included heating to implement heating the slurry to a temperature of 30-40oC, resulting in the evaporation of residual water. Thus purified and dried sludge can be immediately sent to storage.

The vacuum tank for sludge occurs also by vacuum pressure generated by water-jet pump.

Alternatively, there is a possibility to dry the sludge gathered in the tank for sludge without further washing process, by creating in the tank for sludge reduced pressure, which creates a water-jet pump.

It is also possible to collect the sludge at the stage of preliminary filter placed before the third tank. This stage pre-filtration is this the preferred way of the cylindrical tank in which the coaxial him posted by rotating the filter through which in the direction from inside to outside are the waste water that is absorbed due to the reduced pressure created by the water jet pump. Then pre-treated filter waste water going into the third tank.

At the stage of preliminary filtering going sludge retained by the filter, which can be produced through the days shall be at the expense of creating a reduced pressure, if the connecting pipe between the tank for wastewater collection and stages of pre-filtration is blocked.

The sump is made prior follows a multi-stage, and, as mentioned, the first step, situated preferred way directly under Samooborona the tank in the form of an oil separator, and the stage set before purification device made in the form of filtration. At this stage filter is a fine filter.

Separate stages separated by dividing walls that are either moving away from the area of the bottom in order to end at a distance from the liquid level, or to pass through the liquid level and end at a distance from the bottom. As a result of this water, sufficiently purified in the last stage, that of the filter, passes through the installation of purification of operating the preferred way biologically, in order to get to the second tank which contains the water-jet pump.

As a result of use of the ideas embodied in the invention, there is no more need to use conventional selamolela. In the already mounted the mouth of the of the first tank, receiving dirty water.

In the form of execution of the invention a portion of the purified water can be disinfected in order to sum up then, for example, to the capacity for sludge settling tank or to the stage of purification. The part can also be returned to the receiving tank from which you can get technical water for cleaning, for example, automobiles.

And finally, the side of the suction jet pump can be connected to the backbone, for example a hose, in order to produce suction from the washing boxes installation for washing.

Other details, advantages and features of the invention ensue not only from the claims, from signs that can be taken from them, by themselves or in combination, but also from the following description of preferred example of use presented on the drawings.

Fig.1 shows the fundamental image of the first form of execution of the device for wastewater treatment.

Fig. 2 - schematic image of the second form of the apparatus for sewage treatment.

Fig.3 - technological scheme.

Fig. 4 - schematic image of the third form of execution of the device for cleaning stochnyh water.

In Fig. 1 purely schematically shows a device of wastewater, particularly wastewater generated at the facility for washing cars.

The device includes collecting the effluent from the first tank 10, which pipe 12 is connected with a reservoir tank 14. Under the reservoir tank 14 is settling tank 16, which consists of many steps 46, 48, 50 and 52. At this stage 16 acts as a separator, and the last step 48 as stage fine filter.

Behind the sump 16 posted by device 24 aftertreatment, for example stage microfiltration and/or the level of decontamination that goes into the tank 22, is designated as the second tank and receiving the effluent.

In the tank 22 posted by water-jet pump 28, which is available in the tank 22, water is supplied to the loop with a submerged pump 26.

The suction side 30 of the water-jet pump 28 is connected through line 32 from a reservoir tank 14. From pipe 32 branches off the pipe 36, which ends in a head part of the tank for sludge 34.

From tank 22 that collects the effluent away parawise tank for sludge 34.

Forth from a reservoir 34 for sludge leaves the duct 44, which passes into the pipe 12, flowing with his hand in the collection tank 14.

In order to fill the collection tank 34 by sludge settling tank 16 is islamological 54, 56 and 58, in which the head part through line 60 into collection tank 34.

The operation of the device according to the invention is as follows.

Waste water collected in the reservoir 10 through the suction pipe 12 in the area of the bottom of the tank 10 is sucked into the reservoir 14. For this purpose, the reservoir 14 through conduit 32 connects with the suction side 30 of the waterjet pump 22 and simultaneously open the valve 62 provided in the pipe 12, and the valve 64, existing in the pipe 32 before the tank 14. Portion of the pipe 66 connecting the reservoir 14 with the environment, is closed by a valve 68. Shut the valve 70 in the pipe 44 leading to the assembled tank 34, and the valve 72 in the pipe 36 that proceedeth out of the pipe 32 leading to the assembled tank 34.

After the tank 14 is filled with a sufficient volume, it keeps opening by itself, namely in accordance with theory that you can borrow from Patan (line 74) waste water flows from the reservoir 14 into the first stage 46 of the sump 16. The pipeline ends 74 above the perforated plate 82, below which is samolian 58, which from the bottom of a locked valve 76, which may form the connection pipe 60 .

The first step is made in the form of oil, so that oil may be collected on the water surface and to flow by flowing device 78.

The dividing wall 80 extends in the first stage 46, starting from the zone above the level of water or oil, to zone, located at a distance from the bottom step 46, namely to the perforated plate 82. As a result, fluid may flow from stage 46 in the subsequent stages 50, 52 and 48.

Step 46 is separated from the stage 50 dividing wall 84, which has a break in the zone of water level. Steps 50 and 52 are separated by a dividing wall 86, which ends at a distance from the perforated plate 88 which closes islamological 56, and passes through the surface of the water.

The corresponding dividing wall 90 defines the steps 48 and 52, which also includes perforated islamological 54.

As islamological 58, can be closed with a valve 9 which, when not formed wastewater, and therefore, there is a power installation cleaning, sludge is sucked into the tank for sludge 34. In this case, the valves 76, 94 and 96 are open, the valves 62, 64 and 70 are closed and the valve 72 located in the pipe 36 is opened.

After the tank 34 for sludge filled with sludge, the valves 76, 94 and 96 are closed. Close the valves 70 and 64. Then, the treated wastewater may be in the pipeline 42 filed with the reservoir 34 to the slurry, and feeding is carried out either by means of a submersible pump 98, or through pipes 32 and 36 when the open valve 72, which comes from the suction side 30 of the waterjet pump 22.

After water, which acts as wash water got into the tank 34 for sludge, resulting from the sludge separated detergents, oil, or something similar, contaminated wash water is sucked through the pipe 44. To do this, close the valves 62 68 and 72, and the valve 64 and 70 are opened. Therefore flush water enters the collection tank 14.

As soon as using a water-jet pump 22, the water will be completely sucked away from the receiving tank 40, the pipe 60 is detected by another not illustrated kapamilya water removed from the tank 34 for sludge is the vacuum with closed valves 64 and 70 and the open valve 72 and simultaneously nesomyinae heating for sand drying and evaporation of the remaining water. Dried and thus purified sludge can without any problems be removed.

From the receiving tank 40 of the water can be enjoyed in the disinfection device 100, from which the decontaminated water can also be directed to the reservoir 34 for sludge and/or the stage of purification 24 and/or in the sump 16. The part can be again returned to the receiving tank 40, in particular when receiving tank 40 will be taken as technical water.

Finally, the suction side 30 of the jet pump 28 may be connected through line 102, for example, washing with boxes installed flush.

In Fig. 2 shows a schematic diagram of water treatment plants that meet the idea of the invention, in particular a device for the purification of waste water for car washing, which, among other things, has a compact design. However, in accordance with Fig. 1, the same elements have the same reference position.

In order to obtain a compact and easily serviced the installation is asesiny on one frame 104.

Variant forms of execution shown in Fig. 1, provides for the pipeline 44, producing suction from the tank 34 for sludge, not from the head part, and from the bottom of the reservoir 34. However, in the head part of the tank 34 ends another pipe 60 extending from the sluice of mud or sand 54 and 58.

Technological scheme of devices operating according to the invention, shown in Fig. 3, which includes the following notation:

A vacuum generator and a gravity filter with oil separator,

B - filter sludge and sand drying device,

C - collection tank wash water,

D - water treatment device, such as an ozone generator,

E - islamological located at the side of the sink,

F - oil separator,

G - wash water intake, located at the side of the sink.

Next, position 1 indicated the suction pipe of the wash water, position 2 - the extraction of the sludge and sand, and position 3 - device for water treatment, such as treatment with ozone.

Purified water from the tank And flows through the pipe 4 to the preferred way lined original semologie E, with insert, wash.

In Fig. 4 and 5 shows a purely schematic image of the preferred forms of embodiment of the device for preparation of wash water.

Waste water, for example from the portal washing devices 104 or from the washing boxes 106, is taken through line 108 into a collecting tank for wash water 110, which on its part is located in semolale 112, if already mounted washer and equipped in accordance with the invention. Otherwise, the space 112, the support function of the feeder tank for process water, can be prepared via a built-in tank or something similar.

As other significant components of the device according to Fig. 4 it should be called the stage of pre-treatment 114, which is connected with Samooborona reservoir tank 116 which function corresponds to a precast tank depicted in Fig. 1 and Fig. 2. Also the degree of pre-treatment 114 may correspond shown in Fig. 1 and 2.

Then there semosavlebsi tank 118, and the fine purification device 120, which may also be replaced or supplemented by a disinfection device, such as ozone and the steps with the help of which, moreover, are separated hydrocarbons and the remaining sludge is collected in the so-called semonovich 122, 124.

In stage pre-treatment is further submersible pump 126, which provides present at stage 114 pre-cleaning water jet pump waste water, which undergoes preliminary treatment and present in stage pre-treatment.

Next submersible pump 130 is under the technical water tank 112.

The function of the device depicted in Fig. 4, the following.

Water entering through line 108 into a collecting tank 110 wash water is sucked through the pipe 132 into a collecting tank 116 by means of reduced pressure, which creates a water-jet pump 128. For this purpose, the water-jet pump 128 is connected by a pipe 134 with a reservoir tank 116. For pumping wastewater through a pipe 132 collection tank 116 from the closed bottom. At the same time open the valve 136, available in the pipeline 134.

As soon as the collection tank 116 is full, it automatically emptying. At the same time through the pipe 134 through leaks who sucked the surrounding atmosphere, offer.

Waste water passing through the stage of pre-treatment comes after that, through the pipe 140 in the feeder tank service water 112. Hence the waste water subjected to pre-cleaning using a submersible pump 130 through the pipeline 142 arrives at the stage of fine cleaning and disinfection of 120 to then be fed through the pipe 146 in step 114 pre-treatment or collection tank 116.

Through line 148 islamological 122 and 124 are connected with semosavliani reservoir 118, which, on its part through the pipe 150 is connected to a reservoir tank 116 to either suck the sludge from selamolela 122 and 124, or at the blocked pipe 148 to dry the sludge accumulated in selamolela the reservoir 118. Because through line 150 in selamolela tank 118 must be created negative pressure, then, needless to say, the valve 136 in the pipeline 134 must be opened, and the valve 152 in the pipe 132 and the valve 138 must be closed, while the open valve 154 that is present in the pipe 150.

The device according to Fig. 5 differs from the device shown in Fig. 4, maple in front of him. However, regardless of this, in the device according to Fig. 5 low pressure water-jet pump 160, which is driven submersible pump 162 is used to suck the waste water collected in a collecting tank wash water 164 to supply it in the desired quantity at the stage of purification.

Waste water arising on the portal installation washer 163 is fed through a pipe 166 in the team tank 164 to the wash water, which then flows through line 168, in step pre-treatment 156 and then through line 170 to Samooborona precast tank 158. For this collection tank 158 is connected through conduit 172 with a side of low-pressure water-jet pump 160.

Stage pre-treatment 156 includes a rotating cylindrical filter 157, set the preferred way in the tank coaxially through which promazyvaetsya waste water flowing in a pipe 168, so that dirt, sand or other sludge remains inside, while the pre-purified waste water is sucked through the pipe 170 to the reservoir 158.

From tank 158, which according to its functional is defined in Fig. 1, the pre-purified waste water flows through the pipe 172 in the feeder tank 174, which also hosts the collection tank for wash water 164.

From the feeder tank 174 water subjected to pre-cleaning may be supplied by pipeline 176 for fine purification stage 178 or pipe 180 to the other device disinfection, such as ozone generator 182. For this purpose, the pipes 176 and 180 posted pumps 184 and 186.

From the fine purification stage 178 purified water as process water can flow through the pipeline 188 installing the sink. From disinfection devices 182 water may be supplied by selecting it under the tank 174 through the pipeline 190 or to the degree of pre-treatment 156 pipeline 192.

Because the water present in the feeder tank 174, sufficiently decontaminated, it is, in particular, when the pipeline 190 water from disinfection devices 182 is fed back into the feeder tank, then to the portal wash installation 163 pipeline 194 may be filed directly with technical water.

1. The method of purification of waste water installation (104, 106, 163) for car washing, being, the pre-purified or purified water in the second tank (22, 112, 174), which cleansed or purified waste water is fed directly to the plant for washing vehicles or indirectly through the cleaning stage, wherein serves the waste water from the first tank to the third tank by means of suction; void located in the third tank waste water when the preset filling level; serves flushed from the third tank effluent directly or indirectly into the second tank, and the waste water flows either before filing in the third tank, or after emptying of the sump (16, 114, 156); create required for filing discharge using water-jet pump (28, 128, 160), as a power source is used, treated or pre-treated sewage water circuit.

2. The method according to p. 1, characterized in that the selected circuit solid is sucked off through the suction created by the water jet pump (28, 128, 160).

3. The method according to p. 1 or 2, characterized in that collected in the second tank (22, 112, 174) purified or cleansed waste water disinfected with point and waste water from plants (104, 106, 183) car washing, containing the first tank (10, 110, 164) for receiving waste water, at least a second tank (22, 112, 174) for receiving treated or pre-treated waste water, washed waste water sump (16, 114, 158) and the feed unit for feeding waste water, and collected in the second tank cleaned or pre-purified waste water is again fed to the plant for washing vehicles, characterized in that the feed unit is made in the form of creating a water-jet vacuum pump (28, 128, 160) that is installed in the second tank (22, 112, 174) with purified or pre-purified water or in the additional tank (114), the first tank (10, 110, 164) is connected via a lockable first pipe (12, 132, 168, 170) with the third reservoir (14, 116, 158), to be filled at the expense of established water-jet pump vacuum and bleeded when reaching a specified filling level, which, in turn, indirectly or directly connected with the second tank (22, 112, 174), the water-jet pump connected side (30) of the suction with the third reservoir through a lockable second pipeline (32, 134, 172), while before the third tank, or after it is installed sump (16, 114 is dwarfelles filter, contains mounted in the tank, rotating, covering the inner space of the filter (157), in the inner space of flows feeding the waste water pipe (192), while the space between the tank wall and the outer side of the filter is connected through the third tank (158) to the suction side water-jet pump (160).

6. The device under item 4 or 5, characterized in that the pipeline pumping the effluent to install (104, 106, 163) for car washing, air filter (120, 178) fine cleaning and/or ozone unit (182).

7. The device at least on p. 4, characterized in that the reservoir (34, 118, 156) for sludge leaves lockable third pipeline (44, 150, 170), who directly or indirectly discharges into the third tank (14, 116, 158).

8. Device at least one of PP.1-7, characterized in that the tank (16, 114) performed a multi-stage, preferably the first stage (46) made in the form of the separator, and the other stage (48) in the form of filtration.

9. Device at least one of PP.1-8, characterized in that the tank (16, 114) contains at least one islamological(54, 56, 58, 122, 124), which alternating least one of PP.1-9, characterized in that the slurry tank (34, 118) made with the possibility of evacuation and mainly includes a heating device.

11. Device at least one of PP.1-10, characterized in that from the second tank (112, 174) for receiving cleaned or pre-treated wastewater or installed behind him catching tank (40) or from an auxiliary tank (114) connected to the third reservoir (116), there is a pipe leading to a disinfecting device (100, 120, 182), while disinfecting device (100, 120, 182) through pipelines connected to the slurry tank (34, 182) and/or sump (16, 114) and/or step (24) purification and/or step (155) pre-treatment.

12. Device at least one of PP.1-11, characterized in that from the catching vessel (40) or from the second tank (112, 174) for receiving treated or pre-treated wastewater or from step (120, 178) fine filtration leaves the pipeline (144, 188), leading to the installation of car washing.

13. Device at least one of PP.1-12, characterized in that the second or third tank (22, 112, 158) predvklyuchen stage (16, 114, 156) is made in the form of stage micro, and/or fine filtration, and/or level of disinfection.

 

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FIELD: devices for purification of household and industrial sewage.

SUBSTANCE: the invention is dealt with devices for purification of household and industrial sewage and intended for electrical and cavitational treatment of sewage containing a large quantity of organic compounds. The device for purification of sewage consists of a body made out of a dielectric material partitioned by diaphragms for two electrode chambers and one working chamber, that contains a filtering material. The electrode chambers have cavitational field sources installed and the working chamber is supplied with a the bubbler installed in it. The technical result consists in an increase of recuperation of the filtering material at the expense of application of a cavitational field to it, decrease of the microbiological semination, and an increase of cavitational effect on particles.

EFFECT: the invention ensures an increase of the filtering material recuperation, decreased microbiological semination and increased the cavitational effect on particles.

1 dwg

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