Salt-containing organic wastewater treatment system

Abstract

The utility model discloses a salt-containing organic wastewater treatment system, which relates to the technical field of wastewater treatment, and comprises a fence, a cement cover plate, a wastewater discharge flow channel, an adjusting tank, an aeration tank and a secondary sedimentation tank, a worker discharges wastewater into the wastewater discharge flow channel to introduce high-salt organic wastewater into the adjusting tank, then flows into the aeration tank and then flows into the secondary sedimentation tank; the salt-containing organic wastewater is sequentially subjected to pond separation treatment of adjustment, aeration and secondary precipitation, and during the period, a continuous oxidation aeration water purification operation effect is formed through aeration holes of a biological membrane frame and a biological filter membrane surface, and large salt crystal particles are separated out through membrane surface pretreatment and are filtered to an aeration pond; then sludge is dewatered and pumped through a back-flushing counterweight device, trace salt crystals are separated out at proper time, then filtering and dewatering are thorough through a filter element ball valve and a suction pump combined terminal, and the salt-containing organic wastewater treatment system is subjected to one-time three-pool work treatment and does not need secondary backflow double-circulation finish machining wastewater treatment operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely is a kind of salt-containing organic wastewater treatment system. BACKGROUND

[0002] High-salinity wastewater refers to wastewater with a total salt content of at least 3.5 wt%. It mainly comes from chemical plants and the collection and processing of oil and natural gas. This kind of wastewater contains various substances (including salt, oil, organic heavy metals and radioactive substances). The production of salt-containing wastewater is widespread, and the water volume is increasing year by year. It is crucial to remove organic pollutants from salt-containing wastewater to reduce the impact on the environment. The biological treatment process of high-salinity wastewater is basically the same as that of ordinary biological treatment process, mainly including adjusting tank, aeration tank, secondary sedimentation tank, sludge return, excess sludge dewatering, and adding nutrient salt.

[0003] In the secondary sedimentation tank and sludge dewatering link, the settled high-salt crystalline sludge is easy to float up due to water flow injection, and the residual fine salt crystals may be mixed into the dewatering pipeline, causing incomplete dewatering and desalination of the sludge, and the wastewater treated by biological treatment needs to be recycled twice for complete treatment, which affects the processing progress of the system water flow and causes lag and single wastewater double-circulation treatment. SUMMARY

[0004] To solve the problem of incomplete dewatering and desalination of sludge in the secondary sedimentation tank and sludge dewatering link, and the need for double-circulation complete treatment of wastewater treated by biological treatment, which affects the processing progress of the system water flow and causes lag and single wastewater double-circulation treatment, the utility model provides a salt-containing organic wastewater treatment system.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a salt-containing organic wastewater treatment system, comprising a fence, a cement cover plate, a wastewater discharge channel, an adjusting tank, an aeration tank and a secondary sedimentation tank. The fence is inserted into the top of the adjusting tank, the aeration tank and the secondary sedimentation tank. The cement cover plate is placed on the top of the wastewater discharge channel. The adjusting tank and the secondary sedimentation tank are respectively attached to the left and right sides of the aeration tank. The wastewater discharge channel is inserted into the upper left corner of the adjusting tank. The wastewater discharge channel, the adjusting tank, the aeration tank and the secondary sedimentation tank are sequentially assembled into one body from left to right, and all of them are connected to conduct salt-containing organic wastewater treatment.

[0006] Preferably, a biofilm rack is vertically fixed between the adjusting tank and the aeration tank, and a pipeline is fixed between the aeration tank and the secondary sedimentation tank.

[0007] The regulating tank and the aeration tank are connected through the biofilm frame, the aeration tank and the secondary sedimentation tank are connected through the pipeline, and the regulating tank, the aeration tank and the secondary sedimentation tank are connected in series from left to right, so that the internal drainage of the salt-containing organic wastewater is sequentially guided to the regulating tank, the aeration tank and the secondary sedimentation tank for treatment.

[0008] Preferably, the biofilm frame is provided with aeration holes and a biological filter membrane surface, the aeration holes are arranged in the interior of the biological filter membrane surface and are fixed to the biological filter membrane surface, and the biological filter membrane surface is vertically fixed between the regulating tank and the aeration tank.

[0009] The aeration holes and the biological filter membrane surface form aeration oxidation to precipitate high-salt crystals, the regulating tank is not provided with an uncovered tank opening, and the gas exchange oxidation can continuously aerate in the regulating tank for 24 hours to pretreat and filter salt crystals, and the biological filter membrane surface can be regularly replaced and cleaned in the tank.

[0010] Preferably, the secondary sedimentation tank is provided with a backflushing counterweight device, a filter core ball valve and a suction pump, the backflushing counterweight device and the filter core ball valve are connected through a pipeline, the filter core ball valve and the suction pump are connected through a pipeline, and the backflushing counterweight device and the suction pump are respectively arranged at the upper left and right corners of the filter core ball valve.

[0011] The backflushing counterweight device is used for sedimentation of sludge and secondary sedimentation and stabilization of fine salt crystals, the water flow extracted through the filter core ball valve is filtered through an additional filtering port, the wastewater treatment is ensured, the sludge dewatering is guided, the suction pump is used for water extraction at the tail end of the pipeline to separate the secondary sedimentation tank from the tank body, and the sludge dewatering operation of the secondary sedimentation tank is stable and precise.

[0012] Preferably, the backflushing counterweight device is provided with a single-way valve port, a shell, counterweight blocks and an inner chamber, the single-way valve port is fixed in the interior of the shell, the counterweight blocks are arranged at the lower left and right corners of the shell and are respectively welded to the shell, the counterweight blocks and the inner chamber are matched in a gap mode, and the inner chamber and the filter core ball valve are connected through a pipeline.

[0013] The single-way valve port and the counterweight blocks are combined to form a backflushing pressure generated by upward water flow and counterweight downward pressure, and the backflushing extraction water flow pressure is greater, the impact force is greater, the sludge is more completely removed, and the fine salt crystals are more completely precipitated.

[0014] Preferably, the filter core ball valve is provided with a spiral pipe, filter screens and a ball valve shell, the filter screens are arranged in the interior of the spiral pipe, the spiral pipe is inserted into the interior of the ball valve shell, and the ball valve shell and the suction pump are connected through a pipeline.

[0015] The spiral pipe and the filter screens form a circulating spiral filtration of fine salt crystals in the ball valve shell, the water purification and fine filtration degree of the whole is improved, and the ball valve sinking water flow and the suction pump form a connected vessel principle effect.

[0016] Preferably, the suction pump is provided with a pump core and a fin groove, the pump core is installed on the top of the fin groove, the pump core and the fin groove are mutually penetrated, and the fin groove is penetrated by a conduit and a filter core ball valve.

[0017] The purified wastewater extracted in the pump core and the fin groove can ensure the stability of the dewatering and pumping of the sludge, provide a dewatering and pumping power source, and improve the fine fitting effect of the secondary precipitation sludge and salt crystallization.

[0018] The utility model provides a kind of salt-containing organic wastewater treatment system, with the following beneficial effects:

[0019] The salt-containing organic wastewater treatment system is used to adjust the pool, then flows into the aeration tank, and then flows into the secondary sedimentation tank, and the salt-containing organic wastewater is sequentially adjusted, aerated and treated in the secondary sedimentation tank, and the continuous oxidation and aeration water purification operation effect is formed by the aeration holes of the biofilm frame and the biofilter membrane surface during the process, so that the membrane surface pretreatment precipitates salt crystallization large particles for the aeration tank, and then the sludge dewatering and pumping and timely precipitation of trace salt crystallization are realized by the backflushing weight device, followed by the filter core ball valve and suction pump combination terminal filtration dewatering, so that fine salt crystallization is precipitated in the single-way valve port of the backflushing weight device and the filter screen of the filter core ball valve, and the salt-containing organic wastewater treatment system is treated by one-time three-tank operation without secondary reflux double-circulation fine processing wastewater operation, which improves the wastewater system water flow processing progress and biological treatment precision. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a cross-sectional structure schematic view of the salt-containing organic wastewater treatment system of the utility model;

[0021] Figure 2 It is a detailed cross-sectional structure schematic view of the biofilm frame of the utility model;

[0022] Figure 3 It is a detailed cross-sectional structure schematic view of the backflushing weight device of the utility model;

[0023] Figure 4 It is a detailed cross-sectional structure schematic view of the filter core ball valve of the utility model;

[0024] Figure 5 It is a detailed cross-sectional structure schematic view of the suction pump of the utility model.

[0025] In the figure: fence 1, cement cover plate 2, waste water discharge channel 3, adjusting tank 4, aeration tank 5, secondary sedimentation tank 6, biofilm frame 41, pipeline 51, backflushing counterweight device 61, filter element ball valve 62, suction pump 63, aeration hole 411, biological filter membrane surface 412, single-way valve port 611, shell cover 612, counterweight 613, inner chamber 614, spiral pipe 621, filter screen 622, ball valve shell 623, pump core 631, fin groove 632. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-5 The present application provides a salt-containing organic wastewater treatment system, which comprises a fence 1, a cement cover plate 2, a waste water discharge channel 3, an adjusting tank 4, an aeration tank 5, and a secondary sedimentation tank 6. The fence 1 is inserted into the top of the adjusting tank 4, the aeration tank 5, and the secondary sedimentation tank 6. The cement cover plate 2 is covered on the top of the waste water discharge channel 3. The adjusting tank 4 and the secondary sedimentation tank 6 are respectively attached to the left and right sides of the aeration tank 5. The waste water discharge channel 3 is inserted into the upper left corner of the adjusting tank 4. The waste water discharge channel 3, the adjusting tank 4, the aeration tank 5, and the secondary sedimentation tank 6 are sequentially assembled into an integrated body from left to right, and all of them are connected to guide the salt-containing organic wastewater for tank treatment.

[0028] In the secondary sedimentation tank and the sludge dewatering link, the settled high-salt crystalline sludge is easy to float up due to water flow injection, and the dewatering pipeline inner frame may be mixed with residual fine salt crystals, which causes incomplete sludge dewatering and desalination, and the biological treatment wastewater needs to be treated twice, which affects the water flow processing progress of the system and causes the defects of lag and single wastewater double-circulation treatment.

[0029] The biofilm frame 41 is vertically and fixedly arranged between the adjusting tank 4 and the aeration tank 5. The pipeline 51 is fixedly arranged between the aeration tank 5 and the secondary sedimentation tank 6.

[0030] It should be noted that the adjusting tank 4, the aeration tank 5, and the secondary sedimentation tank 6 are connected in series, and the salt-containing organic wastewater is guided and flowed from left to right through the adjusting tank 4, the aeration tank 5, and the secondary sedimentation tank 6 for tank treatment.

[0031] The biological membrane frame 41 is provided with an aeration hole 411 and a biological filter membrane surface 412. The aeration hole 411 is provided with two or more and is fixed inside the biological filter membrane surface 412. The biological filter membrane surface 412 is vertically fixed between the adjusting tank 4 and the aeration tank 5.

[0032] It should be noted that the aeration oxidation of the aeration hole 411 and the biological filter membrane surface 412 forms a high-salt crystallization, and the adjusting tank 4 is exposed to the pool without a cover. The air oxidation can be continuously aerated in the adjusting tank 4 for 24 hours. The pretreated filter salt crystals in the adjusting tank 4 can be periodically replaced and cleaned in the pool.

[0033] The secondary sedimentation tank 6 is provided with a backflush counterweight 61, a filter core ball valve 62 and a suction pump 63. The backflush counterweight 61 is connected to the filter core ball valve 62 through a conduit. The filter core ball valve 62 is connected to the suction pump 63 through a conduit. The backflush counterweight 61 and the suction pump 63 are respectively installed on the left and right upper corners of the filter core ball valve 62.

[0034] It should be noted that the backflush counterweight 61 is used for sludge settlement and fine salt crystal secondary settlement. The water flow extracted through the filter core ball valve 62 has an additional filtration port to ensure that the wastewater treatment is combined with the sludge dewatering. Finally, the suction pump 63 is used to extract water from the tail end of the pipeline to separate the secondary sedimentation tank 6, which is efficient and stable in sludge dewatering operation.

[0035] The backflush counterweight 61 is provided with a single-way valve port 611, a shell 612, a counterweight 613 and an inner chamber 614. The single-way valve port 611 is fixed inside the shaft of the shell 612. The counterweight 613 is provided with two and is respectively welded on the left and right lower corners of the shell 612. The counterweight 613 and the inner chamber 614 are gap matched. The inner chamber 614 is connected to the filter core ball valve 62 through a conduit.

[0036] It should be noted that the single-way valve port 611 and the counterweight 613 are combined to form a backflush pressure that upwardly guides the water flow and downwardly presses the counterweight, so as to further improve the secondary lifting flow effect. The water flow extracted by backflush has greater impact force, which can more thoroughly extract trace salt crystals.

[0037] The filter core ball valve 62 is provided with a spiral pipe 621, a filter screen 622 and a ball valve shell 623. The filter screen 622 is provided with two or more and is fixed inside the spiral pipe 621. The spiral pipe 621 is inserted into the ball valve shell 623. The ball valve shell 623 is connected to the suction pump 63 through a conduit.

[0038] Need to explain, through the spiral tube 621 and filter screen 622 in the ball valve shell 623 form a circulating spiral filter fine salt crystal operation effect, improve the overall degree of fine filtration of water, and ball valve sedimentation water flow with suction pump 63 draw flow stability form a connected vessel principle effect.

[0039] The suction pump 63 is provided with pump core 631, fin groove 632, the pump core 631 is installed on the top of fin groove 632, the pump core 631 and fin groove 632 are mutually through, the fin groove 632 is through the conduit and filter core ball valve 62 are mutually through.

[0040] Need to explain, through the pump core 631 draw flow fin groove 632 extraction of purified wastewater, ensure the stability of sludge dewatering water flow to provide pumping dewatering power source, also improve the fine fitting effect of secondary sedimentation sludge and salt crystal.

[0041] The staff by the wastewater into the waste water flow channel 3 into the high salt organic wastewater to the adjusting tank 4 and then into the aeration tank 5 and then into the secondary sedimentation tank 6, in turn, let the salt containing organic wastewater for adjusting, aeration, secondary sedimentation of pool treatment, during the biological membrane frame 41 through the aeration hole 411 and biological filter membrane surface 412 form continuous oxidation aeration water treatment operation effect, let the membrane surface pretreatment salt crystal large particles filter to the aeration tank 5, and then through the filter core ball valve 62 and suction pump 63 combination terminal filtration dewatering thoroughly, so that fine salt crystal in the backflushing weighter 61 single way valve port 611 and filter core ball valve 62 filter screen 622 carried out precipitation, let the salt containing organic wastewater treatment system get one-time three pool work processing without secondary reflux double cycle of fine processing wastewater operation, improve the wastewater system water flow processing progress and biological treatment precision.

[0042] The above, only for the specific embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range of the present application, can easily think of changes or replacement, should be covered in the protection scope of the present application.

Claims

1. A system for treating a salt-containing organic wastewater, characterized by: The utility model provides a kind of salt-containing organic wastewater treatment device, including fence (1), cement cover plate (2), waste water flow channel (3), regulating pool (4), aeration tank (5), secondary sedimentation tank (6), the fence (1) is inserted in regulating pool (4), aeration tank (5), secondary sedimentation tank (6) three top, the cement cover plate (2) is covered in waste water flow channel (3) top, the regulating pool (4) is respectively close to aeration tank (5) left and right sides with secondary sedimentation tank (6), waste water flow channel (3) is inserted in the upper left corner of regulating pool (4), waste water flow channel (3), regulating pool (4), aeration tank (5), secondary sedimentation tank (6) four are sequentially assembled into an organic whole from left to right, and four are all open salt-containing organic wastewater and carry out pool treatment.

2. A system for treating a salt-containing organic wastewater according to claim 1, characterized in that: The biological membrane frame (41) is vertically and fixedly arranged between the regulating pool (4) and the aeration tank (5), and the pipeline (51) is fixedly arranged between the aeration tank (5) and the secondary sedimentation tank (6).

3. A system for treating a salt-containing organic wastewater according to claim 2, wherein: The biological membrane frame (41) is provided with an aeration hole (411) and a biological filter membrane surface (412), the aeration hole (411) is provided with more than two and is fixedly arranged in the biological filter membrane surface (412), and the biological filter membrane surface (412) is vertically and fixedly arranged between the regulating pool (4) and the aeration tank (5).

4. The system for treatment of salted organic wastewater according to claim 1, characterized in that: The secondary sedimentation tank (6) is provided with a backflushing counterweight device (61), a filter core ball valve (62) and a suction pump (63), the backflushing counterweight device (61) is connected with the filter core ball valve (62) through a pipeline, the filter core ball valve (62) is connected with the suction pump (63) through a pipeline, and the backflushing counterweight device (61) and the suction pump (63) are respectively arranged at the upper left and right corners of the filter core ball valve (62).

5. A system for treating a salt-containing organic wastewater according to claim 4, wherein: The backflushing counterweight device (61) is provided with a one-way valve port (611), a shell cover (612), a counterweight block (613) and an inner chamber (614), the one-way valve port (611) is fixedly arranged in the axis of the shell cover (612), the counterweight block (613) is provided with two and is welded at the lower left and right corners of the shell cover (612), the counterweight block (613) is matched with the inner chamber (614) in a clearance fit, and the inner chamber (614) is connected with the filter core ball valve (62) through a pipeline.

6. A system for treating a salt-containing organic wastewater according to claim 4, characterized in that: The filter core ball valve (62) is provided with a spiral pipe (621), a filter screen (622) and a ball valve shell (623), the filter screen (622) is provided with more than two and is fixedly arranged in the spiral pipe (621), the spiral pipe (621) is inserted into the ball valve shell (623), and the ball valve shell (623) is connected with the suction pump (63) through a pipeline.

7. A system for treating a salt-containing organic wastewater according to claim 4, characterized in that: The suction pump (63) is provided with a pump core (631) and a fin groove (632), the pump core (631) is arranged on the top of the fin groove (632), the pump core (631) is connected with the fin groove (632), and the fin groove (632) is connected with the filter core ball valve (62) through a pipeline.

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