Sewage treatment system for polypeptide products

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment system for polypeptide products, which comprises a purified water preparation unit and a sewage treatment unit which are communicated with each other, and the sewage treatment unit comprises a concentrated water collecting device and a wastewater recycling device; the purified water preparation unit comprises a filtering device, the filtering device is connected with the concentrated water collection device, the wastewater recycling device comprises a cooling unit, and the cooling unit is used for cooling wastewater generated in polypeptide production and recycling the wastewater to equipment for preparing polypeptide products. According to the device disclosed by the utility model, the concentrated water with slightly high cleanliness generated in the purified water preparation process is recycled and applied by arranging the concentrated water collecting device, and meanwhile, the waste water generated by preparing the polypeptide product is cooled by the waste water recycling device through the cooling unit, so that the waste water can be used for heat dissipation of equipment for preparing the polypeptide product; the cyclic utilization of water resources in the preparation process of the polypeptide product is realized, and the proportion of reuse water is increased.

Description

Technical Field

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

[0002] The polypeptide industry is an emerging high-tech industry in the biopharmaceutical industry. The production process of polypeptide products uses a large amount of water resources, especially in the synthesis and purification stages of polypeptide products, which require the use of purified water for preparation. This not only leads to the generation of a large amount of waste liquid containing reagents, but also causes a large amount of water resources to be wasted. Therefore, how to recycle and reuse the sewage generated in the production process of polypeptide products and avoid the waste of water resources has become an important topic that the industry focuses on. At present, most factories or R&D units reduce the content of reagents in sewage by optimizing the polypeptide production process so that it meets the discharge standards before being discharged. However, the inevitable presence of salts and reagents in sewage will not only cause pollution to the water environment, but more importantly, cause waste of water resources.

[0003] The prior art discloses a wastewater treatment and reuse process for a gelatin production workshop, which removes protein by filtering, membrane filtering and ultrafiltration of the wastewater, and recycles the water produced by ultrafiltration, but the proportion of recycled water in this process is low. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low proportion of recycled water in the prior art, thereby providing a wastewater treatment system for polypeptide products.

[0005] The utility model provides a sewage treatment system for polypeptide products, comprising: a purified water preparation unit and a sewage treatment unit which are connected and arranged, wherein the sewage treatment unit comprises a concentrated water collection device and a wastewater reuse device; the purified water preparation unit comprises a filtering device which is connected to the concentrated water collection device, and the wastewater reuse device comprises a cooling unit which cools the wastewater generated by the production of polypeptides and reuses it to the equipment for preparing polypeptide products.

[0006] In some embodiments, the wastewater recycling device further comprises an evaporator, and the evaporator is used to separate wastewater and waste liquid generated by producing the polypeptide.

[0007] Preferably, the wastewater recycling device also includes a condenser connected to the evaporator.

[0008] In some of the embodiments, the cooling unit includes at least one of an air-cooled cooler or a refrigeration cooler.

[0009] In some of the embodiments, the cooling unit is connected to the device via a first cooling water return pipe.

[0010] In some of the embodiments, the condenser is connected to the device via a second cooling water return pipe.

[0011] In some of the embodiments, the wastewater recycling device further comprises a recycled water collection tank connected to the condenser. Preferably, the recycled water collection tank is connected to the cooling unit.

[0012] Preferably, the filtering device comprises a quartz sand filter, an activated carbon filter, a first reverse osmosis filter and a continuous electric desalination osmosis filter.

[0013] Preferably, the purified water preparation unit further comprises a second reverse osmosis filter, and the second reverse osmosis filter is connected to the filtering device.

[0014] In some of the embodiments, the cooling unit is connected to the device via a connecting pipe.

[0015] Preferably, the cooling unit is provided with a water level controller, and the connecting pipe is provided with a water pump.

[0016] In some of the embodiments, the concentrated water collected by the concentrated water collection device is used as clean water in the laboratory and as water for fire fighting water tanks.

[0017] In some embodiments, the device for preparing the polypeptide product comprises a freeze dryer.

[0018] The technical solution of the utility model has the following advantages:

[0019] The sewage treatment system for polypeptide products provided by the utility model includes: a purified water preparation unit and a sewage treatment unit which are connected to each other, the sewage treatment unit including a concentrated water collection device and a wastewater recycling device; the purified water preparation unit includes a filtering device, the filtering device is connected to the concentrated water collection device, the wastewater recycling device includes a cooling unit, the cooling unit cools the wastewater generated by the production of polypeptides, and reuses it to the equipment for preparing polypeptide products. Among them, the utility model recycles and applies the concentrated water with slightly higher cleanliness generated in the process of preparing purified water by setting a concentrated water collection device, and at the same time uses the wastewater recycling device to cool the wastewater generated in the preparation of polypeptide products through the cooling unit, and then uses it for the heat dissipation of the equipment for preparing polypeptide products, thereby realizing the recycling of water resources in the process of preparing polypeptide products and increasing the proportion of recycled water.

[0020] The wastewater treatment system for polypeptide products provided by the utility model, the wastewater reuse device also includes an evaporator. The utility model is provided with the evaporator, and the wastewater generated by the production of polypeptides is separated into water vapor and waste liquid containing reagents by evaporation, so as to separate the wastewater with slightly higher cleanliness from the waste liquid containing reagents that cannot be directly used, and the wastewater with slightly higher cleanliness is put into recycling, and the waste liquid is harmlessly treated, so that the recycling of water resources is realized, and the wastewater containing reagents is avoided from being put into the environment to cause environmental pollution, and the proportion of recycled water is increased at the same time.

[0021] The wastewater treatment system for polypeptide products provided by the utility model is connected to the cooling unit and the equipment through a first cooling water return pipe. The utility model is provided with a first cooling water recycling pipe to connect the cooling unit and the equipment, which can return the water that has completed the heat dissipation of the equipment to the cooling unit, and re-cool it in the cooling unit, and continue to transport it to the equipment, so as to cool the equipment and realize the recycling of water resources.

[0022] The wastewater treatment system of polypeptide products provided by the utility model is connected to the condenser and the equipment through a second cooling water return pipe. The utility model sets the second cooling water return pipe to connect the condenser and the equipment. The condenser is used to collect the water vapor generated by the heat dissipation equipment on the one hand, and to condense the generated water vapor on the other hand, so as to realize the recycling of water resources and increase the proportion of recycled water.

[0023] The sewage treatment system of polypeptide products provided by the utility model is provided with a water level controller in the cooling unit and a water pump is provided on the connecting pipe. The utility model can control the water storage amount in the cooling unit by providing a water level controller in the cooling unit and cooperating with the water pump on the connecting pipe, thereby improving the heat dissipation efficiency of the equipment and avoiding waste of resources.

[0024] The concentrated water collected by the concentrated water collection device is used for laboratory cleaning water and fire water tank storage. By classifying the water used in polypeptide products, it can be divided into purified water with high cleanliness, concentrated water with general cleanliness generated in the process of preparing purified water, and wastewater with poor cleanliness generated in the preparation of polypeptide products. Among them, the concentrated water contains a certain amount of salt but does not contain other reagents. Therefore, the concentrated water can be used for laboratory cleaning water and fire water tank storage, while the wastewater containing reagents needs to be treated and then recycled.

[0025] The equipment for preparing polypeptide products includes a freeze dryer. In the preparation of polypeptide products, at least one large freeze dryer is required, and the use of the freeze dryer requires the use of a heat exchanger for heat exchange. The utility model treats and cools the wastewater containing reagents generated in the preparation of polypeptide products for heat exchange with the heat exchanger on the freeze dryer to achieve heat dissipation of the freeze dryer, which can not only ensure the efficiency and quality of the freeze dryer in preparing polypeptide products, but also save water resources and realize the recycling of recycled water. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of a sewage treatment system for a polypeptide product provided in the first embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of a sewage treatment system for a polypeptide product provided in a second embodiment of the present utility model;

[0029] Figure 3 for Figure 2 A schematic diagram of a cooling unit is shown;

[0030] Figure 4 This is a schematic diagram of a sewage treatment system for a polypeptide product provided in a third embodiment of the present utility model;

[0031] Description of reference numerals:

[0032] 1-Purified water preparation unit; 2-Sewage treatment unit; 3-Equipment;

[0033] 10- filtration device; 21- concentrated water collection device; 22- wastewater recycling device;

[0034] 11-quartz sand filter; 12-activated carbon filter; 13-first reverse osmosis filter; 14-continuous electric desalination osmosis filter; 15-pure water tank; 16-second reverse osmosis filter; 17-purified water tank;

[0035] 211-concentrated water storage tank; 221-wastewater collection tank; 222-wastewater treatment device; 223-evaporator; 224-condenser; -225-recycled water collection tank;

[0036] 31-cooling unit; 32-equipment; 33-second cooling reflux pipeline; 34-first cooling circulation pump; 35-second cooling circulation pump; 36-first cooling reflux pipeline;

[0037] 311- fan; 312- water level controller. DETAILED DESCRIPTION

[0038] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] Example

[0043] A wastewater treatment system for polypeptide products, such as Figure 1-Figure 2 As shown, it includes a purified water preparation unit 1 and a sewage treatment unit 2 which are connected and arranged, and the sewage treatment unit includes a concentrated water collection device 21 and a wastewater recycling device 22;

[0044] The purified water preparation unit comprises a filtering device 10, and the filtering device 10 is connected to the concentrated water collecting device 21.

[0045] The wastewater recycling device 22 is connected to the cooling unit 31 and the device 3 through a connecting pipe, and can reflux the wastewater generated by preparing the polypeptide product to the device 3 for preparing the polypeptide product after distillation and condensation, so as to cool the device 3.

[0046] Specifically, this embodiment divides wastewater into the following levels according to the requirements for the use of water resources and the cleanliness of the water used: high-purity water is purified water, low-purity water is laboratory water, fire water, toilet flushing, floor flushing, and fire emergency water tank storage water, and no-requirement water is freeze dryer cooling water, sewage treatment facility distillation cooling water, and fan cooling water. According to the above-mentioned wastewater classification levels, the collected wastewater is classified, treated, and used.

[0047] Specifically, the filtering device 10 may include a plurality of filters, and the number of filters may be set according to the specific stage of the reaction process involved in the specific application. For example, the filter may be one or more of a quartz sand filter 11, an activated carbon filter 12, a first reverse osmosis filter 13, and a continuous electric desalination osmosis filter 14, so that the tap water is filtered to form pure water. In this embodiment, the filtering device includes a quartz sand filter 11, an activated carbon filter 12, a first reverse osmosis filter 13, and a continuous electric desalination osmosis filter 14 in sequence. In this embodiment, there are no special requirements for the material or specification of the quartz sand filter 11, the activated carbon filter 12, the first reverse osmosis filter 13, and the continuous electric desalination osmosis filter 14, as long as they can meet the requirements of filtering tap water to achieve purified water.

[0048] The purified water preparation device further includes a pure water tank 15, which is connected to the filtering device 10 and is used to store filtered pure water. In this embodiment, the pure water tank 15 is connected to the continuous electric desalination osmotic filter 14. Specifically, the water outlet of the continuous electric desalination osmotic filter 14 injects the filtered pure water into the pure water tank 15. The utility model does not limit the specifications and quantity of the pure water tank, as long as it can store filtered pure water, and the specifications and quantity of the pure water tank can be set according to the amount of purified water used.

[0049] In the utility model, a second reverse osmosis filter 16 is also included, and the second reverse osmosis filter 16 is connected to the pure water tank 15, and is used to perform a second reverse osmosis filtration on the pure water in the pure water tank 15 to obtain purified water, and the obtained purified water is stored in the purified water tank 17. In this embodiment, pure water is injected into the second reverse osmosis filter 16 from the water outlet of the pure water tank 15, and the pure water is filtered again to obtain purified water that can be used for the preparation of polypeptide products, and the purified water is stored in the purified water tank 17.

[0050] In the utility model, a concentrated water collection device 21 is also included, which is connected to each filter in the filtering device 10, and is used to collect concentrated water filtered by the filtering device in the purified water preparation unit. The concentrated water includes a small amount of salt and belongs to low-purity water. Therefore, the concentrated water collected by the concentrated water collection device is used for toilet water, floor flushing water, other cleaning water or fire water tank storage, etc.

[0051] Specifically, the purified water produced by the purified water preparation unit 1 is used to prepare polypeptide products. The sewage generated in the process of producing purified water by the purified water preparation unit 1 enters the concentrated water collection device 21 for treatment. The wastewater generated in the process of preparing polypeptide products is injected into the wastewater reuse device 22. The wastewater collected by the wastewater reuse device 22 contains chemical reagents and is unrequired water. After treatment, the wastewater is used for cooling the equipment 3 for preparing polypeptide products.

[0052] In the utility model, the wastewater recycling device 22 includes a wastewater collection tank 221 for storing wastewater generated by polypeptide products and a wastewater processor 222 connected to the wastewater collection tank 221, wherein the wastewater processor 222 is used to perform preliminary treatment on the wastewater stored in the wastewater collection tank 221.

[0053] In the utility model, the wastewater reuse device 22 also includes an evaporator 223, and the evaporator 223 is connected to the wastewater processor 222. In this embodiment, the evaporator 223 is connected to the water outlet of the wastewater processor 222. Specifically, the wastewater after preliminary treatment enters the evaporator 223 through the water outlet of the wastewater processor 222. The evaporator 223 separates the wastewater and the waste liquid by distillation, specifically, the water vapor formed by the distillation of the sewage and the waste liquid containing the reagent are separated. In this embodiment, the distilled water obtained by distillation is transferred to the condenser 224 for condensation, and the remaining waste liquid is harmlessly treated. The condensed wastewater enters the reused water collection tank 225 for storage.

[0054] In the utility model, the wastewater reuse device 22 also includes a cooling unit 31, which is connected to the reuse water collection tank 225 and is used to cool the wastewater stored in the reuse water collection tank 225. The cooling unit 31 can be an air-cooled cooler or a refrigeration cooler. The wastewater stored in the reuse water collection tank 225 is treated by the cooling unit 31 to obtain cooling water. The cooling water enters the equipment through a connecting pipe and is used for cooling the equipment.

[0055] In this embodiment, the cooling unit 31 is an air-cooled cooler. Figure 3The air-cooled cooler in this embodiment includes a fan 311, and the air-cooled cooler is provided with a water level control mechanism for controlling the water level height. The specific working process is that the first cooling water circulation pump 34 pumps the wastewater in the reuse water collection tank 225 into the air-cooled cooler, and the fan 311 cools the wastewater. The cooled wastewater is pumped into the freeze dryer through the second cooling water circulation pump 35 to cool the freeze dryer to meet the use of the freeze dryer and complete the preparation of the polypeptide product. The water level controller 312 controls the flow rate of the first cooling water circulation pump 34 and the second cooling water circulation pump 35 according to the water level.

[0056] More specifically, the sewage treatment system for polypeptide products provided in this embodiment obtains purified water by filtering tap water through a filtering device. The purified water obtained is used for the preparation of polypeptide products. The concentrated water filtered by the filtering device is injected into the concentrated water collection device 21 for use as toilet water, floor washing water, other cleaning water or fire water tank water storage, etc. A large amount of wastewater is generated in the process of preparing polypeptide products. After the wastewater is treated by the wastewater reuse device 22, most of the wastewater is used for cooling the equipment used for the production of polypeptide products. The sewage treatment system for polypeptide products provided in this embodiment can increase the proportion of reused water to more than 95%.

[0057] Specific application cases

[0058] Take the wastewater treatment system of a company producing peptide products as an example, see Figure 4 , for water recycling and reuse, the specific steps are as follows:

[0059] The tap water passes through the raw water tank and is filtered through the quartz sand filter, activated carbon filter, primary RO osmosis system and EDI osmosis system in sequence to form purified water. The purified water formed is stored in the pure water tank. The pure water in the pure water tank is processed by the secondary RO osmosis system to obtain purified water, which is stored in the purified water tank. The purified water in the purified water tank is transmitted to various purified water use points in the laboratory for the preparation of polypeptide products. When the tap water is filtered through the quartz sand filter, activated carbon filter, primary RO osmosis system and EDI osmosis system and secondary RO osmosis system, the sewage generated flows into the concentrated water storage tank for storage. The concentrated water storage tank is provided with a circulation pump and a water level controller. The water level height in the concentrated water storage tank is controlled by the cooperation of the water level controller and the circulation pump. The concentrated water stored in the concentrated water storage tank can flow into the outdoor water storage tank for toilet water, ground flushing water, fire water tank water storage and other cleaning water.

[0060] The wastewater produced by preparing polypeptide products contains reagents. Even if the concentration of the reagents can reach the discharge standard, the discharged sewage will still cause environmental pollution on the one hand, and the sewage discharge will cause a large amount of water resources to be wasted, which is not conducive to the recycling of resources. In this embodiment, the wastewater produced by preparing polypeptide products is collected in a wastewater collection box, and after being treated by a wastewater treatment facility, it passes through an evaporator and a condenser in sequence, and the water that can be recycled is stored in a recycling water collection pool. The evaporator leaves waste liquid with reagent residues, and the waste liquid is treated by harmlessness. The waste liquid with reagent residues accounts for about 1% of the total wastewater, wt. In this embodiment, the recycling water in the recycling water collection pool is injected from the top of the fan cooling system under the control of the first cooling water circulation pump, and is stored below the fan cooling system after the fan heats out. A water level controller is provided in the fan cooling system. When the water level in the fan cooling system is insufficient, the recycling water is introduced into the fan cooling system through the recycling water collection pool. The second cooling water circulation pump arranged at the water outlet of the fan cooling system transports the cooling water into the freeze dryer, specifically to the heat exchanger of the freeze dryer to dissipate the heat of the heat exchanger. The water vapor after the heat exchange returns to the condenser through the cooling water return pipe for condensation and recycling. The water after the heat exchange returns to the fan cooling system through the cooling water return pipe for cooling and recycling.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A wastewater treatment system for polypeptide products, characterized in that: include: A purified water preparation unit and a sewage treatment unit are connected and arranged, wherein the sewage treatment unit includes a concentrated water collection device and a wastewater recycling device; The purified water preparation unit comprises a filtering device, which is connected to the concentrated water collecting device. The wastewater recycling device comprises a cooling unit, which cools the wastewater generated by producing polypeptides and reuses it to the equipment for preparing polypeptide products.

2. The wastewater treatment system of polypeptide products according to claim 1, characterized in that: The wastewater recycling device further comprises an evaporator, which is used to separate wastewater and waste liquid generated by producing polypeptides; and / or, The cooling unit includes at least one of an air-cooled cooler or a refrigeration cooler.

3. The wastewater treatment system of polypeptide products according to claim 2, characterized in that: The wastewater recycling device also includes a condenser connected to the evaporator.

4. The wastewater treatment system of polypeptide products according to claim 3, characterized in that: The cooling unit is connected to the device via a first cooling water return pipe; and / or, The condenser is connected to the device via a second cooling water reflux pipeline.

5. The wastewater treatment system of polypeptide products according to claim 4, characterized in that: The wastewater recycling device also includes a recycling water collection tank connected to the condenser, and the recycling water collection tank is in communication with the cooling unit.

6. The wastewater treatment system of the polypeptide product according to any one of claims 1 to 5, characterized in that: The filtering device comprises a quartz sand filter, an activated carbon filter, a first reverse osmosis filter and a continuous electric desalination osmosis filter.

7. The wastewater treatment system of polypeptide products according to claim 6, characterized in that: The purified water preparation unit further comprises a second reverse osmosis filter, wherein the second reverse osmosis filter is connected to the filtering device; and / or, The cooling unit is connected to the equipment through a connecting pipe.

8. The wastewater treatment system of polypeptide products according to claim 7, characterized in that: The cooling unit is provided with a water level controller, and the connecting pipe is provided with a water pump.

9. The wastewater treatment system of polypeptide products according to claim 1, characterized in that: The concentrated water collected by the concentrated water collection device is used as clean water for laboratories and as water for fire fighting water tanks.

10. The wastewater treatment system of polypeptide products according to claim 9, characterized in that: The equipment for preparing the polypeptide product comprises a freeze dryer.

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