Printing wastewater treatment system

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a printing wastewater treatment system which comprises a wastewater pool, an adjusting pool, a reaction pool, a first sedimentation pool, a middle pool, an anaerobic pool, an aerobic pool, a second sedimentation pool and a clean water pool which are sequentially arranged, a first lifting pump is arranged between the adjusting tank and the reaction tank, the first lifting pump is used for conveying wastewater in the adjusting tank to the reaction tank, the first sedimentation tank is close to the reaction tank, the reaction tank is used for conveying reacted sewage to the first sedimentation tank, and the first sedimentation tank is provided with a pipeline and used for conveying the settled sewage to the middle tank. The printing wastewater treatment system realizes comprehensive treatment and clean discharge of printing wastewater, has the technical advantages of high treatment efficiency, good treatment effect, stable and reliable operation and the like, meets the environmental protection requirement, and is beneficial to environmental protection, resource conservation and sustainable development.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a printing wastewater treatment system. Background Art

[0002] Printing wastewater treatment refers to the process of treating wastewater generated during the printing process. Wastewater generated by the printing industry usually contains various organic matter, ink pigments, solvents, heavy metals and other pollutants, so it needs to go through a series of treatment processes to meet emission standards or reuse requirements. The main goals of printing wastewater treatment include removing organic matter, regulating water quality, reducing pollutant content, reducing environmental impact, and achieving effective utilization of resources. In the existing printing wastewater treatment process, it is difficult to achieve comprehensive treatment and clean exhaust of printing wastewater, so it is necessary to improve the existing printing wastewater treatment system. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a printing wastewater treatment system which realizes comprehensive treatment and clean discharge of printing wastewater, has technical advantages such as high treatment efficiency, good treatment effect, stable and reliable operation, meets environmental protection requirements, and is conducive to protecting the environment, saving resources and sustainable development.

[0004] The technical scheme adopted by the utility model is: a printing wastewater treatment system, comprising a wastewater tank, a regulating tank, a reaction tank, a first sedimentation tank, an intermediate tank, an anaerobic tank, an aerobic tank, a second sedimentation tank and a clean water tank which are arranged in sequence, the wastewater tank is provided with a wastewater pipe, the wastewater pipe is used to transport the wastewater toward the regulating tank, a first lifting pump is provided between the regulating tank and the reaction tank, the first lifting pump is used to transport the wastewater in the regulating tank toward the reaction tank, the first sedimentation tank is close to the reaction tank, the reaction tank is used to transport the reacted sewage toward the first sedimentation tank, the first sedimentation tank is provided with a pipeline and transports the precipitated sewage toward the intermediate tank, the intermediate tank is provided with a second lifting pump, the second lifting pump is used to transport the sewage in the intermediate tank toward the anaerobic tank, the anaerobic tank is connected with the aerobic tank, the aerobic tank is used to transport the sewage toward the second sedimentation tank, the second sedimentation tank transports the precipitated clean water toward the clean water tank, the second sedimentation tank is provided with a sludge return pump, the sludge return pump is used to transport the sludge in the second sedimentation tank toward the aerobic tank.

[0005] A further improvement to the above scheme is that the wastewater pool is provided with a lifting bracket, a lifting net is provided on the lifting bracket, the lifting net is used to filter particles with larger particle sizes in the wastewater pool, and the lifting bracket is provided with a lifting rod, which is used to drive the lifting net to slide on the lifting bracket.

[0006] A further improvement to the above scheme is that the lifting rod is a screw rod, the lifting net is provided with a sliding sleeve which can be slidably installed on the lifting bracket, and a lifting handle is provided at one end of the lifting rod.

[0007] A further improvement to the above solution is that the wastewater pipe is located at the lower side of the lifting net to transport the filtered wastewater toward the regulating tank.

[0008] A further improvement to the above scheme is that three reaction tanks are provided, and lime / sodium hydroxide, PAC and PAM are sequentially added to react with the sewage.

[0009] A further improvement to the above scheme is that the first sedimentation tank includes a first water purification part and a first sediment receiving part, and the first water purification part is connected to the intermediate tank.

[0010] A further improvement to the above scheme is that two anaerobic tanks are provided in sequence, and three aerobic tanks are provided in sequence, and the anaerobic tank at the end is connected to the aerobic tank at the beginning.

[0011] A further improvement to the above scheme is that the second sedimentation tank includes a second water purification part and a second sediment receiving part, and the second water purification part is connected to the clean water tank.

[0012] A further improvement to the above scheme is that the first sedimentation tank is provided with a first sedimentation pipe, the second sedimentation tank is provided with a second sedimentation pipe, the first sedimentation pipe and the second sedimentation pipe are connected with a collecting pipe, the collecting pipe is connected with a sludge pump, the sludge pump is connected with a sludge tank, and the sludge tank is connected with a plate and frame mud press.

[0013] A further improvement to the above scheme is that it also includes a fan, the fan is provided with an air duct, one end of the air duct is connected to the regulating tank, the reaction tank and the aerobic tank.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the existing printing wastewater treatment, the utility model can comprehensively treat printing wastewater through the wastewater tank, regulating tank, reaction tank, sedimentation tank, intermediate tank, anaerobic tank, aerobic tank and clear water tank arranged in sequence, including pretreatment, regulation, reaction, sedimentation, biodegradation and other links, to ensure that the wastewater is effectively treated and discharged cleanly. By setting up facilities such as wastewater pipes, lifting pumps and pipelines, the smooth transportation and lifting of wastewater between different treatment units are realized, ensuring the continuous flow and timely lifting of wastewater during the treatment process, and improving the treatment efficiency and stability. The setting of the first sedimentation tank and the second sedimentation tank effectively realizes the precipitation and separation of solid particles and sludge in the wastewater, thereby purifying the wastewater and providing a clean wastewater environment for subsequent treatment. The setting of the anaerobic tank and the aerobic tank realizes the biodegradation and treatment of organic matter in the wastewater. At the same time, the sludge is returned to the aerobic tank through the sludge return pump, which promotes the degradation and treatment of the sludge and improves the thoroughness and efficiency of wastewater treatment. The setting of the clean water tank realizes the storage and recycling of treated clean water, and at the same time promotes the degradation and treatment of sludge through sludge return, providing technical support for clean water recovery and resource utilization in the wastewater treatment process. Through the orderly setting and functional combination of multiple treatment units, the comprehensive treatment and clean discharge of printing wastewater are realized, with technical advantages such as high treatment efficiency, good treatment effect, stable and reliable operation, etc., which meets environmental protection requirements and is conducive to protecting the environment, saving resources and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the printing wastewater treatment system of the utility model;

[0017] Figure 2 It is a schematic diagram of the printing wastewater treatment system of the utility model;

[0018] Figure 3 It is a schematic diagram of a wastewater pool of the printing wastewater treatment system of the present invention.

[0019] Explanation of the reference numerals: wastewater tank 1, wastewater pipe 11, lifting bracket 12, lifting net 13, lifting rod 14, lifting handle 15, regulating tank 2, first lifting pump 21, reaction tank 3, first sedimentation tank 4, first water purification part 41, first sediment receiving part 42, first sedimentation pipeline 43, intermediate tank 5, anaerobic tank 6, aerobic tank 7, second sedimentation tank 8, second water purification part 81, second sediment receiving part 82, second sedimentation pipeline 83, collecting pipeline 84, sludge pump 85, sludge tank 86, plate and frame sludge press 87, sludge return pump 88, clean water tank 9, fan 10. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] like Figure 1 to Figure 3As shown, in one embodiment of the utility model, a printing wastewater treatment system is involved, including a wastewater tank 1, a regulating tank 2, a reaction tank 3, a first sedimentation tank 4, an intermediate tank 5, an anaerobic tank 6, an aerobic tank 7, a second sedimentation tank 8 and a clean water tank 9 which are arranged in sequence. The wastewater tank 1 is provided with a wastewater pipe 11, and the wastewater pipe 11 is used to transport the wastewater toward the regulating tank 2. A first lifting pump 21 is provided between the regulating tank 2 and the reaction tank 3. The first lifting pump 21 is used to transport the wastewater from the regulating tank 2 toward the reaction tank 3. The first sedimentation tank 4 is close to the reaction tank 3. The reaction tank 3 is used to The sewage after the reaction is transported toward the first sedimentation tank 4. The first sedimentation tank 4 is provided with a pipeline and transports the precipitated sewage toward the intermediate tank 5. The intermediate tank 5 is provided with a second lifting pump 51. The second lifting pump 51 is used to transport the sewage in the intermediate tank 5 toward the anaerobic tank 6. The anaerobic tank 6 is connected to the aerobic tank 7. The aerobic tank 7 is used to transport the sewage toward the second sedimentation tank 8. The second sedimentation tank 8 transports the precipitated clean water toward the clean water tank 9. The second sedimentation tank 8 is provided with a sludge return pump 88. The sludge return pump 88 is used to transport the sludge in the second sedimentation tank 8 toward the aerobic tank 7. In this embodiment, by sequentially arranging the wastewater tank 1, the regulating tank 2, the reaction tank 3, the sedimentation tank, the intermediate tank 5, the anaerobic tank 6, the aerobic tank 7 and the clean water tank 9, the system can comprehensively treat the printing wastewater, including pretreatment, regulation, reaction, precipitation, biodegradation and other links, to ensure that the wastewater is effectively treated and cleanly discharged. By setting up facilities such as wastewater pipes 11, lifting pumps and pipelines, the smooth transportation and lifting of wastewater between different treatment units are achieved, ensuring the continuous flow and timely lifting of wastewater during the treatment process, and improving the treatment efficiency and stability. The setting of the first sedimentation tank 4 and the second sedimentation tank 8 effectively realizes the precipitation and separation of solid particles and sludge in the wastewater, thereby purifying the wastewater and providing a clean wastewater environment for subsequent treatment. The setting of the anaerobic tank 6 and the aerobic tank 7 realizes the biological degradation and treatment of organic matter in the wastewater, and at the same time, the sludge is returned to the aerobic tank 7 through the sludge return pump 88, which promotes the degradation and treatment of the sludge and improves the thoroughness and efficiency of wastewater treatment. The setting of the clear water tank 9 realizes the storage and recovery of treated clear water, and at the same time, the degradation and treatment of sludge are promoted through sludge return, providing technical support for the recovery and resource utilization of clear water in the wastewater treatment process. Through the orderly arrangement and functional combination of multiple treatment units, the comprehensive treatment and clean discharge of printing wastewater is realized, which has the technical advantages of high treatment efficiency, good treatment effect, stable and reliable operation, meets environmental protection requirements, and is conducive to protecting the environment, saving resources and sustainable development.

[0024] See also Figure 3As shown, the wastewater pool 1 is provided with a lifting bracket 12, and a lifting net 13 is provided on the lifting bracket 12. The lifting net 13 is used to filter particles with larger particle sizes in the wastewater pool 1. The lifting bracket 12 is provided with a lifting rod 14, and the lifting rod 14 is used to drive the lifting net 13 to slide on the lifting bracket 12. Specifically, the lifting rod 14 is a screw rod, and the lifting net 13 is provided with a sliding sleeve that can be slidably installed on the lifting bracket 12. One end of the lifting rod 14 is provided with a lifting handle 15. The wastewater pipe 11 is located at the lower side of the lifting net 13 to transport the filtered wastewater toward the regulating tank 2. In this embodiment, the lifting net 13 is used as a filtering device for particles with larger particle sizes in the wastewater pool 1, which can effectively intercept and filter larger solid particles, prevent these particles from entering the subsequent processing unit, protect the equipment and reduce the impact on the subsequent process. The lifting rod 14 is a screw structure, which can drive the lifting net 13 to slide on the lifting bracket 12, thereby realizing continuous filtering and removal of particles in the wastewater, and keeping the inside of the wastewater pool 1 clean and stable. The setting of the lifting handle 15 allows the operator to conveniently lift and maintain the lifting net 13 through the lifting rod 14, which improves the convenience and safety of operation and ensures the normal operation and maintenance of the equipment. The wastewater pipe 11 is located at the lower side of the lifting net 13, and can smoothly transport the filtered wastewater toward the regulating tank 2, ensuring that the wastewater after preliminary filtration can smoothly enter the subsequent treatment unit, providing a clean wastewater environment for subsequent treatment.

[0025] There are three reaction tanks 3, into which lime / sodium hydroxide, PAC and PAM are sequentially added to react with sewage. In this embodiment, the addition of lime / sodium hydroxide can adjust the pH value of the wastewater so that it meets the acidity and alkalinity requirements suitable for the subsequent treatment process, which is beneficial to the normal operation and treatment effect of the subsequent treatment unit. The addition of PAC (polyaluminium chloride) can form a flocculant, which promotes the agglomeration of suspended matter and colloidal substances in the wastewater into larger particles, which is convenient for subsequent precipitation and separation, thereby effectively removing suspended matter and turbidity in the wastewater. The addition of PAM (polyacrylamide) can improve the sedimentation of suspended matter and colloidal particles in the wastewater, which is beneficial to improving the sedimentation rate and efficiency of sludge, promoting the separation and precipitation of sludge, and thus purifying the wastewater.

[0026] The first sedimentation tank 4 includes a first water purification part 41 and a first sediment receiving part 42, and the first water purification part 41 is connected to the intermediate tank 5. In this embodiment, the setting of the first sedimentation tank 4 allows solid particles in the wastewater to precipitate to form a first sediment, and the clean water in the upper layer forms the first water purification part 41, realizing the function of solid-liquid separation in the wastewater. The first water purification part 41 is connected to the intermediate tank 5, and the clean water after the preliminary sedimentation treatment can be smoothly transported to the intermediate tank 5, providing a clean wastewater environment for subsequent treatment, and realizing the recovery of clean water in the wastewater. The first sediment receiving part 42 is used to collect and receive the sediment in the first sedimentation tank 4, providing convenience for the subsequent treatment of the sediment, such as further dehydration, drying or resource utilization.

[0027] Two anaerobic tanks 6 are arranged in sequence, and three aerobic tanks 7 are arranged in sequence, and the anaerobic tank 6 at the end is connected to the aerobic tank 7 at the first place. In the present embodiment, the anaerobic tank 6 can provide an oxygen-free environment, which is conducive to the reproduction of anaerobic bacteria and the degradation of organic matter, thereby effectively removing organic matter in the wastewater. The anaerobic tank 6 is also conducive to the removal of nitrogen and phosphorus, and through the denitrification and phosphorus release under anaerobic conditions, it provides good pre-treatment conditions for the subsequent nitrogen and phosphorus removal. The aerobic microorganisms in the aerobic tank 7 can form a biofilm, which is conducive to the adsorption and degradation of organic matter and ammonia nitrogen and other substances in the wastewater, thereby improving the purification effect of the wastewater. The oxygen supply in the aerobic tank 7 can promote the oxidative degradation of organic matter and pollutants in the wastewater, which is conducive to improving the cleanliness and treatment effect of the wastewater.

[0028] The second sedimentation tank 8 includes a second water purification part 81 and a second sediment receiving part 82, and the second water purification part 81 is connected to the clean water tank 9. In this embodiment, the second sedimentation tank 8 is set up so that the solid particles in the wastewater can be precipitated to form a second sediment, and the clean water on the upper layer forms the second water purification part 81, realizing the function of solid-liquid separation in the wastewater. The second water purification part 81 is connected to the clean water tank 9, and the clean water after the sedimentation treatment can be smoothly transported to the clean water tank 9, providing a clean wastewater environment for subsequent treatment, and realizing the recovery of clean water in the wastewater.

[0029] The first sedimentation tank 4 is provided with a first sedimentation pipeline 43, the second sedimentation tank 8 is provided with a second sedimentation pipeline 83, the first sedimentation pipeline 43 and the second sedimentation pipeline 83 are connected with a collecting pipeline 84, the collecting pipeline 84 is connected with a sludge pump 85, the sludge pump 85 is connected with a sludge tank 86, and the sludge tank 86 is connected with a plate-frame mud press 87. In this embodiment, the first sedimentation tank 4 and the second sedimentation tank 8 collect solid particles through the sedimentation pipeline, and the collecting pipeline 84 and the sludge pump 85 centrally transport these solid particles to the sludge tank 86. This process realizes the effective separation and collection of solid particles in printing wastewater. The sludge tank 86 and the plate-frame mud press 87 are used to further process the sludge, including dehydration and compaction. Such a treatment method helps to reduce the volume and moisture content of the sludge, which is convenient for subsequent disposal or resource utilization. Through the connection between each device, the entire treatment system forms a continuous process flow, realizes the complete process from sludge collection to treatment, and improves the treatment efficiency and system stability. In this embodiment, the plate-frame mud press 87 is conventional equipment in the field, so no further details are given.

[0030] It also includes a blower 10, which is provided with an air duct, one end of which is connected to the regulating tank 2, the reaction tank 3 and the aerobic tank 7. In the present embodiment, the blower 10 delivers air to the regulating tank 2, the reaction tank 3 and the aerobic tank 7 through the air duct, providing necessary oxygen and stirring. This helps to maintain the oxygen content of the water in the pool, and promotes the degradation and oxidation of organic matter in the wastewater, thereby improving the treatment efficiency. The air delivered by the blower 10 can promote the redox reaction in the reaction tank 3, which is conducive to removing pollutants such as organic matter and heavy metal ions in the wastewater, and improving the possibility of meeting the discharge standards of water quality. The setting of the blower 10 forms a continuous process of gas delivery between the regulating tank 2, the reaction tank 3 and the aerobic tank 7, which helps to coordinate the operation between different treatment units and improve the stability and treatment efficiency of the entire wastewater treatment system.

[0031] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A printing wastewater treatment system, characterized in that: The invention comprises a wastewater tank, a regulating tank, a reaction tank, a first sedimentation tank, an intermediate tank, an anaerobic tank, an aerobic tank, a second sedimentation tank and a clear water tank which are arranged in sequence. The wastewater tank is provided with a wastewater pipe which is used to transport the wastewater toward the regulating tank. A first lifting pump is provided between the regulating tank and the reaction tank. The first lifting pump is used to transport the wastewater in the regulating tank toward the reaction tank. The first sedimentation tank is close to the reaction tank. The reaction tank is used to transport the sewage after reaction toward the first sedimentation tank. The first sedimentation tank is provided with a pipeline which transports the sewage after precipitation toward the intermediate tank. The intermediate tank is provided with a second lifting pump which is used to transport the sewage in the intermediate tank toward the anaerobic tank. The anaerobic tank is connected with the aerobic tank. The aerobic tank is used to transport the sewage toward the second sedimentation tank. The second sedimentation tank transports the clear water after precipitation toward the clear water tank. The second sedimentation tank is provided with a sludge return pump which is used to transport the sludge in the second sedimentation tank toward the aerobic tank.

2. The printing wastewater treatment system according to claim 1, characterized in that: The wastewater pool is provided with a lifting bracket, on which a lifting net is provided, which is used to filter particles with larger particle sizes in the wastewater pool, and the lifting bracket is provided with a lifting rod, which is used to drive the lifting net to slide on the lifting bracket.

3. The printing wastewater treatment system according to claim 2, characterized in that: The lifting rod is a screw rod, the lifting net is provided with a sliding sleeve which can be slidably installed on the lifting bracket, and a lifting handle is provided at one end of the lifting rod.

4. The printing wastewater treatment system according to claim 1, characterized in that: The wastewater pipe is located at the lower side of the lifting net to transport the filtered wastewater towards the regulating tank.

5. The printing wastewater treatment system according to claim 1, characterized in that: There are three reaction tanks, into which lime / sodium hydroxide, PAC and PAM are sequentially added to react with the sewage.

6. The printing wastewater treatment system according to claim 1, characterized in that: The first sedimentation tank includes a first water purification part and a first sediment receiving part, and the first water purification part is connected to the middle tank.

7. The printing wastewater treatment system according to claim 1, characterized in that: Two anaerobic tanks are arranged in sequence, and three aerobic tanks are arranged in sequence, and the anaerobic tank at the end is connected to the aerobic tank at the beginning.

8. The printing wastewater treatment system according to claim 1, characterized in that: The second sedimentation tank includes a second water purification part and a second sediment receiving part, and the second water purification part is connected to the clean water tank.

9. The printing wastewater treatment system according to claim 1, characterized in that: The first sedimentation tank is provided with a first sedimentation pipeline, the second sedimentation tank is provided with a second sedimentation pipeline, the first sedimentation pipeline and the second sedimentation pipeline are connected with a collecting pipeline, the collecting pipeline is connected with a sludge pump, the sludge pump is connected with a sludge tank, and the sludge tank is connected with a plate and frame mud press.

10. The printing wastewater treatment system according to claim 1, characterized in that: The device also includes a fan, which is provided with an air duct, one end of which is connected to the regulating tank, the reaction tank and the aerobic tank.

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