CN212403883U

CN212403883U - Wastewater treatment equipment

Info

Publication number: CN212403883U
Application number: CN202021307583.XU
Authority: CN
Inventors: 李�浩
Original assignee: Shengwang Auto Parts Kunshan Co ltd
Current assignee: Shengwang Auto Parts Kunshan Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-26
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a wastewater treatment device, which comprises an adjusting tank, a medium filter, an ultrafiltration device, a reverse osmosis device, a water storage tank and a biochemical reaction tank which are communicated in sequence; the reverse osmosis device comprises a reverse osmosis device body and a water inlet pipeline, wherein the water inlet pipeline is arranged on the reverse osmosis device body, and a water inlet is formed in the water inlet pipeline; a reverse osmosis pipeline is arranged in the reverse osmosis device body, a water seepage pipeline is arranged in the reverse osmosis pipeline, a filter screen is arranged outside the water seepage pipeline, and a reverse osmosis membrane is wrapped outside the filter screen; a water collecting pipeline is arranged in the reverse osmosis pipeline, and one end of the water collecting pipeline is provided with a water outlet; the reverse osmosis pipeline is provided with a water outlet. In this way, the utility model discloses can improve the rate of reuse of spraying waste water, reduce the water waste, and reduced the outer row of spraying waste water and caused environmental pollution.

Description

Wastewater treatment equipment

Technical Field

The utility model relates to a waste water treatment technical field especially relates to a waste water treatment equipment.

Background

A process for reclaiming the water generated by reverse osmosis of sewage features that the domestic sewage (or urban sewage) or industrial sewage is deeply treated to remove impurities, the toxic and harmful substances and heavy metal ions in polluted water, and the water is colorless, odorless, clear and transparent and can meet or exceed the national standard for general water.

The treatment process of spraying waste water in industrial waste water is divided into a physical treatment method, a chemical treatment method and a biological treatment method. The treatment method comprises PH neutralization, adding coagulant to make colloidal particles (inorganic substances) in the spraying wastewater collide with each other and coagulate into larger particles, separating from water, performing physical precipitation to separate cement, extracting mud by mud press, introducing clean water into biological pool, and oxidizing and decomposing complex organic substances in the wastewater into CO by metabolism balance of microbial flora₂Methane and H₂And O and the excrement of the microorganisms form sludge, and the sewage reaches the discharge standard. Although the traditional spraying wastewater treatment is up-to-standard discharge, the pollution factors are eliminated to cause environmental pollution, and the traditional spraying wastewater treatment only can be up-to-standard discharge and cannot be recycled, so that water resources are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a waste water treatment equipment, can collect the processing so that recycle with spraying waste water, improved the rate of reuse of spraying waste water, reduce water waste, and reduced the outer row of spraying waste water and caused environmental pollution.

In order to achieve the above object, the technical solution of the present invention is:

a wastewater treatment device comprises a regulating reservoir, a medium filter, an ultrafiltration device, a reverse osmosis device, a water storage tank and a biochemical reaction tank which are communicated in sequence; a lifting pump is arranged between the regulating tank and the medium filter, and a high-pressure pump is arranged between the ultrafiltration device and the reverse osmosis device; the water storage tank comprises a water production tank and a concentrated water tank, and the concentrated water tank is communicated with the biochemical reaction tank; the reverse osmosis device comprises a reverse osmosis device body and a water inlet pipeline, wherein the water inlet pipeline is arranged on the reverse osmosis device body, one end of the water inlet pipeline extends into the reverse osmosis device body, and a water inlet is formed in the water inlet pipeline; a reverse osmosis pipeline is arranged in the reverse osmosis device body, a water seepage pipeline is arranged in the reverse osmosis pipeline, a filter screen is arranged outside the water seepage pipeline, and a reverse osmosis membrane is wrapped outside the filter screen; a water collecting pipeline is arranged in the reverse osmosis pipeline, one end of the water collecting pipeline extends to the outside of the reverse osmosis device body, and a water outlet is formed in one end of the water collecting pipeline; the reverse osmosis pipeline is provided with a water outlet, and the water outlet is positioned outside the water outlet.

The above wastewater treatment equipment collects and treats the spraying wastewater so as to be recyclable, and divides the wastewater into two parts in the reverse osmosis device: the micromolecule that can pass through reverse osmosis membrane comes out from the delivery port like the hydrone, can not come out from the outlet through reverse osmosis membrane's macromolecule like metal ion, chloridion etc. handle through biochemical reaction tank again from the outlet, ensures that spraying waste water all can discharge to the standard, has improved the rate of reuse of spraying waste water, reduces water waste, and has reduced the outer row of spraying waste water and cause environmental pollution.

Preferably, a sealing ring is arranged outside the reverse osmosis device body, and the sealing ring is connected with the reverse osmosis device body in a sealing mode.

Preferably, an anti-seepage ring is arranged outside the water collecting pipeline and is in sealing connection with the water collecting pipeline.

Preferably, the inside of collecting pipe is provided with a plurality of infiltration hole, and a plurality of infiltration hole sets up side by side.

Preferably, the material of the filter screen is an activated carbon screen.

Preferably, the mesh number of the filter screen is five meshes to eight meshes.

Preferably, the filler in the medium filter comprises one or more of quartz sand, anthracite and activated carbon.

Drawings

FIG. 1 is a schematic view of a wastewater treatment facility of the present invention.

FIG. 2 is a schematic view of a reverse osmosis apparatus in a wastewater treatment plant of the present invention.

Fig. 3 is a schematic view of the inside of the reverse osmosis pipeline in the reverse osmosis apparatus of the present invention.

Description of reference numerals:

the device comprises a regulating tank 1, a medium filter 2, an ultrafiltration device 3, a reverse osmosis device 4, an osmosis device body 401, a water inlet pipeline 402, a reverse osmosis pipeline 403, a water seepage pipeline 404, a filter screen 405, a reverse osmosis membrane 406, a water collecting pipeline 407, a water outlet 408, a water outlet 409, a sealing ring 410, an anti-seepage ring 411, a water seepage hole 412, a water production tank 51, a concentrated water tank 52, a biochemical reaction tank 6, a lift pump 7 and a high-pressure pump 8.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the attached drawings, the wastewater treatment equipment comprises an adjusting tank 1, a medium filter 2, an ultrafiltration device 3, a reverse osmosis device 4, a water storage tank and a biochemical reaction tank 6 which are communicated in sequence. The filler in the media filter 2 includes one or more of quartz sand, anthracite, and activated carbon. A lifting pump 7 is arranged between the adjusting tank 1 and the medium filter 2, and a high-pressure pump 8 is arranged between the ultrafiltration device 3 and the reverse osmosis device 4. The water storage tank comprises a water production tank 51 and a concentrated water tank 52, the water production tank 51 and the concentrated water tank 52 are both communicated with the reverse osmosis device 4, and the concentrated water tank 52 is communicated with the biochemical reaction tank 6.

The reverse osmosis device 4 comprises a reverse osmosis device body 401 and a water inlet pipeline 402, a sealing ring 410 is arranged outside the reverse osmosis device body 401, and the sealing ring is connected with the reverse osmosis device body 401 in a sealing mode, so that the sealing performance of the whole structure is better. The inlet pipe 402 is arranged on the reverse osmosis device body 401, one end of the inlet pipe 402 extends into the reverse osmosis device body 401, and a water inlet is arranged in the inlet pipe 402. A reverse osmosis pipeline 403 is arranged in the reverse osmosis device body 401, and a water seepage pipeline 404 is arranged in the reverse osmosis pipeline 403.

The exterior of the water seepage pipe 404 is provided with a filter screen 405, and the filter screen 405 is wrapped with a reverse osmosis membrane 406. Filter screen 405 can be more favorable to the impurity in the waste water to flow, and five meshes to eight meshes can be chooseed for use to filter screen 405's mesh number. The material of filter screen 405 is the activated carbon net, and activated carbon is structural because microcrystalline carbon is irregular arrangement, has the pore between cross connection, can produce carbon tissue defect when the activation, therefore it is a porous carbon, and bulk density is low, and specific surface area is big, has very strong adsorption efficiency, can effectual adsorption impurity.

A water collecting pipe 407 is arranged in the reverse osmosis pipe 403, one end of the water collecting pipe 407 extends to the outside of the reverse osmosis device body 401, and a water outlet 408 is arranged at one end of the water collecting pipe 407. An anti-seepage ring 411 is arranged outside the water collecting pipeline 407, and the anti-seepage ring 411 is connected with the water collecting pipeline 407 in a sealing manner. The inside of the water collecting pipe 407 is provided with a plurality of water penetration holes 412, and the plurality of water penetration holes 412 are arranged side by side. The reverse osmosis pipe 403 is provided with a drain 409, and the drain 409 is located outside the outlet 408.

Pass through flange fixed connection with the inlet channel 402 of reverse osmosis unit body 401 one end and ultrafiltration device 3's outlet pipe, remove sealing washer 410 to the junction with the flange after the connection is accomplished again, sealing washer 410 can carry out effectual sealing to the gap, improves holistic leakproofness. The other end of the water collecting pipeline 407 is connected with a water outlet pipeline, a water outlet 409 at the other end of the reverse osmosis pipeline 403 is connected with the concentrated water tank 52, and the water can be used after the connection is finished. In the play water of ultrafiltration device 3 got into reverse osmosis unit body 401, waste water oozed filter screen 405 through the infiltration hole 412 in the water collecting pipe 407 and can carry out the water conservancy diversion to waste water, and reverse osmosis membrane 406 can hold back soluble solid in the aquatic, various metal ion and bacterial virus etc.. Concentrate that has not met the reuse criteria is discharged from the drain 409 into the concentrate tank 52, while product water that has met the reuse criteria is discharged through the outlet 408.

A wastewater treatment process utilizing the wastewater treatment equipment comprises the following steps:

and (3) adjusting: and conveying the spraying wastewater into a pre-adjusting tank to adjust the pH value of the spraying wastewater.

And (3) medium filtration treatment: waste water after the adjustment treatment is conveyed to a medium filter through a lifting pump, impurities in the spraying waste water are filtered, and large particle suspended matters in the waste water are removed.

And (3) ultrafiltration treatment: the wastewater after the medium filtration treatment is taken as raw water and conveyed into an ultrafiltration device, and colloid, suspended particles, chromaticity, turbidity, bacteria and macromolecular organic matters in the raw water are separated out by the ultrafiltration device.

Reverse osmosis treatment: and (4) the effluent after the ultrafiltration treatment enters a reverse osmosis device for reverse osmosis treatment to remove substances such as soluble organic matters, ammonia nitrogen, salts and the like in the wastewater. The produced water which meets the reuse standard enters a water production tank, and the concentrated water which does not meet the reuse standard enters a concentrated water tank.

Biochemical treatment: the biochemical reaction tank comprises an anaerobic tank and an aerobic tank. The effluent after reverse osmosis treatment enters an anaerobic tank in the biochemical reaction tank, the sludge concentration in the anaerobic tank is more than or equal to 6000mg/L, the volume ratio of the sludge to the cleaning water after coagulation treatment is 1:1-1:4, and the hydraulic retention time is 2-5 days. And removing part of organic substances in the wastewater through an anaerobic tank, and decomposing organic substances which are difficult to degrade into micromolecular substances which are easy to degrade. The effluent of the anaerobic tank enters an aerobic tank, the sludge concentration in the aerobic tank is 3200-5000mg/L, the dissolved oxygen concentration in the aeration stage is 2.5-3.5mg/L, the aeration time is 6h, and most organic matters in the wastewater are removed through the aerobic tank.

In the actual treatment process, the spraying wastewater is collected in a regulating reservoir, is conveyed to a medium filter by a lifting pump, removes suspended matters, fine impurities and colloidal particles in water by using filter materials such as quartz sand, anthracite and the like in the filter, enters an ultrafiltration device, and filters the tiny particles in the water by using a hollow fiber membrane. The water after the ultrafiltration system is pumped into the reverse osmosis device through the high-pressure pump, and the wastewater is divided into two parts by utilizing the reverse osmosis effect of the reverse osmosis membrane: small molecules such as water molecules which can pass through the reverse osmosis membrane can come out from the water outlet, and large molecules such as metal ions, chloride ions and the like which cannot pass through the membrane can come out from the water outlet. The produced water from the reverse osmosis device has good quality, and is recycled to a water supply tower for water supplement, the concentration of certain factors such as COD, BOD and the like of the concentrated water treated by the reverse osmosis device can exceed the discharge standard due to the higher concentration of pollutants, and the concentrated water can be ensured to reach the standard to be discharged outside through the treatment of a biochemical reaction tank.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A wastewater treatment device is characterized by comprising an adjusting tank, a medium filter, an ultrafiltration device, a reverse osmosis device, a water storage tank and a biochemical reaction tank which are sequentially communicated; a lifting pump is arranged between the regulating tank and the medium filter, and a high-pressure pump is arranged between the ultrafiltration device and the reverse osmosis device; the water storage tank comprises a water production tank and a concentrated water tank, and the concentrated water tank is communicated with the biochemical reaction tank; the reverse osmosis device comprises a reverse osmosis device body and a water inlet pipeline, wherein the water inlet pipeline is arranged on the reverse osmosis device body, one end of the water inlet pipeline extends into the reverse osmosis device body, and a water inlet is formed in the water inlet pipeline; a reverse osmosis pipeline is arranged in the reverse osmosis device body, a water seepage pipeline is arranged in the reverse osmosis pipeline, a filter screen is arranged outside the water seepage pipeline, and a reverse osmosis membrane is wrapped outside the filter screen; a water collecting pipeline is arranged in the reverse osmosis pipeline, one end of the water collecting pipeline extends to the outside of the reverse osmosis device body, and a water outlet is formed in one end of the water collecting pipeline; the reverse osmosis pipeline is provided with a water outlet, and the water outlet is positioned outside the water outlet.

2. The wastewater treatment plant according to claim 1, characterized in that: and a sealing ring is arranged outside the reverse osmosis device body and is in sealing connection with the reverse osmosis device body.

3. The wastewater treatment plant according to claim 1, characterized in that: and an anti-seepage ring is arranged outside the water collecting pipeline and is in sealing connection with the water collecting pipeline.

4. The wastewater treatment plant according to claim 1, characterized in that: the inside of water collecting pipe is provided with a plurality of infiltration hole, and a plurality of infiltration hole sets up side by side.

5. The wastewater treatment plant according to claim 1, characterized in that: the filter screen is made of an activated carbon screen.

6. The wastewater treatment plant according to claim 1, characterized in that: the mesh number of the filter screen is five meshes to eight meshes.

7. The wastewater treatment plant according to claim 1, characterized in that: the filler in the medium filter comprises one or more of quartz sand, anthracite and activated carbon.