CN216191752U

CN216191752U - High-salinity concentrated water zero-discharge circulating treatment system

Info

Publication number: CN216191752U
Application number: CN202122385328.8U
Authority: CN
Inventors: 高建伟
Original assignee: Hebei Jianze Energy Saving Technology Co ltd
Current assignee: Hebei Jianze Energy Saving Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a high-salinity concentrated water zero-discharge circulating treatment system which comprises a mixing and filtering unit, a biochemical treatment unit and a treatment and discharge unit, wherein the mixing and filtering unit comprises a wastewater mixing tank, a booster water pump, a filter element filter and an active carbon filter which are sequentially connected with one another, the biochemical treatment unit comprises an adjusting tank, an aeration tank, a sedimentation tank, a security filter, a softening tank and a pressure filter which are sequentially connected with one another, the water inlet end of the adjusting tank is connected with the water outlet end of the active carbon filter, the treatment and discharge unit comprises a high-pressure reverse osmosis device, a secondary reverse osmosis device and a multi-stage multi-effect evaporator which are sequentially connected with one another, and the water inlet end of the high-pressure reverse osmosis device is connected with the water outlet end of the pressure filter. Compared with the prior art, the utility model has the advantages that: the combination of biochemical treatment and physical treatment has good treatment effect.

Description

High-salinity concentrated water zero-discharge circulating treatment system

Technical Field

The utility model relates to the technical field of high-salinity concentrated water treatment, in particular to a high-salinity concentrated water zero-discharge circular treatment system.

Background

The high-salinity wastewater refers to wastewater with the total salt mass fraction of at least 1%, which is mainly from chemical plants, petroleum and natural gas collection and processing and the like. The existing high-salt concentrated water zero-discharge circulating treatment system mostly adopts a physical treatment mode, has high consumption, is difficult to achieve the expected purification treatment effect, cannot use a biological method for treatment due to high-density salt water in the high-salt concentrated water, and has strong consistent effect on microorganisms due to high-concentration salt substances.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide a high-salinity concentrated water zero-discharge circulating treatment system with combination of biochemical treatment and physical treatment and good treatment effect.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: concentrated water zero release circulation processing system of high salt, including mixing filter unit, biochemical treatment unit and processing discharge unit, mix filter unit and include interconnect's waste water mixing tank, booster pump, filter core filter and active carbon filter in proper order, biochemical treatment unit is including interconnect's equalizing basin, aeration tank, sedimentation tank, safety filter ware, softening tank and pressure filter in proper order, the equalizing basin is intake the end and is connected with active carbon filter play water end, it includes interconnect's high pressure reverse osmosis unit, second grade reverse osmosis unit and multistage multi-effect evaporator in proper order to handle discharge unit, high pressure reverse osmosis unit is intake the end and is connected with the pressure filter play water end.

Compared with the prior art, the utility model has the advantages that: compared with the prior art, the high-salinity concentrated water is mixed with the common low-salinity wastewater by using the wastewater mixing tank, the concentration density of salt substances in the wastewater is reduced by mixing, organic matters with toxic properties to microorganisms are removed by adsorption through the activated carbon filter, a foundation is provided for biochemical treatment of the microorganisms, the organic matters and inorganic matters with toxicity are removed by virtue of biochemical treatment of the aeration tank, the treatment effect of the high-salinity concentrated water is promoted, and then the water and the salt are separated by virtue of secondary reverse osmosis and evaporator treatment, so that zero-emission treatment of the high-salinity concentrated water is realized.

As an improvement, the water outlet end of the sedimentation tank is respectively connected with a secondary sedimentation tank and a sludge dewatering and drying device, and the water outlet end of the secondary sedimentation tank is respectively connected with the sludge dewatering and drying device and a security filter.

As an improvement, the fresh water outlet ends of the high-pressure reverse osmosis device and the second-stage reverse osmosis device are connected with a cooling water circulating device, and the cooling water circulating device is connected with the multi-stage multi-effect evaporator.

Drawings

FIG. 1 is a flow chart of the structure of the high-salinity concentrated water zero-discharge circular treatment system.

As shown in the figure: 1. a wastewater mixing pool; 2. a booster water pump; 3. a cartridge filter; 4. an activated carbon filter; 5. a regulating tank; 6. an aeration tank; 7. a sedimentation tank; 8. a cartridge filter; 9. a softening tank; 10. a filter press; 11. a high pressure reverse osmosis unit; 12. a secondary reverse osmosis device; 13. a multi-stage multi-effect evaporator; 14. a secondary sedimentation tank; 15. a sludge dewatering and drying device; 16. a cooling water circulation device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine figure 1, high salt dense water zero release circulation processing system, including mixing filter unit, biochemical treatment unit and processing discharge unit, mix filter unit including interconnect's waste water mixing tank 1, booster pump 2, filter core filter 3 and active carbon filter 4 in proper order, biochemical treatment unit includes interconnect's equalizing basin 5, aeration tank 6, sedimentation tank 7, safety filter 8, softening tank 9 and pressure filter 10 in proper order, 5 end of intaking of equalizing basin are connected with the play water end of active carbon filter 4, it includes interconnect's high pressure reverse osmosis unit 11, second grade reverse osmosis unit 12 and multistage multi-effect evaporator 13 in proper order to handle discharge unit, high pressure reverse osmosis unit 11 end of intaking is connected with 10 play water ends of pressure filter.

The water outlet end of the sedimentation tank 7 is respectively connected with a secondary sedimentation tank 14 and a sludge dewatering and drying device 15, and the water outlet end of the secondary sedimentation tank 14 is respectively connected with the sludge dewatering and drying device 15 and a security filter 8.

And the fresh water outlet ends of the high-pressure reverse osmosis device 11 and the second-stage reverse osmosis device 12 are connected with a cooling water circulating device 16, and the cooling water circulating device 16 is connected with the multi-stage multi-effect evaporator 13.

In the specific implementation of the utility model, as shown in fig. 1, the utility model mixes high-salt wastewater and low-salt wastewater through a wastewater mixing tank 1, dilutes the salt concentration in the high-salt wastewater, then carries out pressurized conveying through a pressurized water pump 2, carries out primary filtration through a filter core filter 3 by means of high pressure, then carries out adsorption filtration of toxic organic matters through an activated carbon filter 4, enters an adjusting tank 5, then carries out pH adjustment on the mixed wastewater by adding a pH value balancing agent, enters an aeration tank 6 for aeration, removes organic matters and toxic inorganic matters in the wastewater through microorganisms, then carries out precipitation through a precipitation tank 7, carries out filtration through a security filter 8, namely a fine filter after complete precipitation, removes impurities, then carries out softening treatment through a softening tank 9, removes substances such as Ca and the like which can generate scales, and then separates substances at a displacement position through a filter press 10, finally, the fresh water at the separation part is used for subsequent cooling through a high-pressure reverse osmosis device 11 and a second-order reverse osmosis device 12, the high-pressure concentrated water is concentrated through multiple stages, salt is crystallized and separated finally through evaporation of a multi-stage multi-effect evaporator 13, when the sedimentation effect of the sedimentation tank 7 is insufficient, secondary sedimentation treatment is carried out through a secondary sedimentation tank 14, and the treated biological sludge and the precipitated organic matters are dried through a sludge dewatering and drying device 15.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. Concentrated water zero release circulation processing system of high salt, including mixing filter unit, biochemical treatment unit and processing discharge unit, its characterized in that: mix the filter unit including interconnect's waste water mixing tank (1), booster pump (2), filter core filter (3) and activated carbon filter (4) in proper order, biochemical treatment unit is including interconnect's equalizing basin (5), aeration tank (6), sedimentation tank (7), safety filter (8), softening tank (9) and pressure filter (10) in proper order, equalizing basin (5) are intake and are held with activated carbon filter (4) play water end and are connected, it includes interconnect's high pressure reverse osmosis unit (11), second grade reverse osmosis unit (12) and multistage multi-effect evaporator (13) in proper order to handle the emission unit, high pressure reverse osmosis unit (11) are intake and are held with pressure filter (10) play water end and connect.

2. The high-salinity concentrated water zero-emission recycling treatment system according to claim 1, characterized in that: the sedimentation tank (7) is connected with a secondary sedimentation tank (14) and a sludge dewatering and drying device (15) at the water outlet end respectively, and the secondary sedimentation tank (14) is connected with the sludge dewatering and drying device (15) and a security filter (8) at the water outlet end respectively.

3. The high-salinity concentrated water zero-emission recycling treatment system according to claim 1, characterized in that: the fresh water outlet ends of the high-pressure reverse osmosis device (11) and the second-stage reverse osmosis device (12) are connected with a cooling water circulating device (16), and the cooling water circulating device (16) is connected with the multi-stage multi-effect evaporator (13).