Recycling device for fructose production wastewater

Abstract

The utility model provides a fructose production wastewater recovery device, and belongs to the technical field of chemical wastewater treatment. A ceramic membrane ultrafiltration system comprising a bag filter and a ceramic membrane ultrafiltration device is arranged for preliminary filtration, and the ceramic membrane ultrafiltration system can remove most impurities in liquefied condensate water and vacuum pump drainage water in the fructose production process to obtain a clear water sample; further filtration is carried out in a reverse osmosis system comprising a precision filter and a reverse osmosis device, the reverse osmosis system can remove residual impurities and pollutants in the wastewater to obtain recycled water meeting the requirements of ion exchange reclaimed water for fructose production, and finally, the recycled water enters an osmosis water production tank to be stored; the product is used for next fructose production; the ceramic membrane ultrafiltration system and the reverse osmosis system are arranged in a matched manner, so that the contents of acetaldehyde, impurities and COD (Chemical Oxygen Demand) in the wastewater can be effectively reduced, and the recycled water meets the requirements of ion exchange recycled water for fructose production.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical industry wastewater treatment, specifically relates to a fructose production wastewater recovery device. BACKGROUND

[0002] In the field of chemical engineering, especially in the production process of high fructose corn syrup, the use of liquefaction process and vacuum equipment will produce a large amount of drainage, and the main pollutants of the drainage include acetaldehyde, impurities and COD (chemical oxygen demand). These pollutants make the drainage unable to be directly recycled and reused, and can only be discharged into the sewage pool, resulting in increased pollution discharge cost and increased water cost. In the field of water treatment technology, the application of reclaimed water recovery system is more and more widely. The reclaimed water recovery system can treat the drainage in the industrial production process to reach the standard of reuse, thereby reducing the amount of pollution discharge and water consumption. In the field of environmental protection engineering, how to effectively treat and recycle the drainage in the industrial production process and reduce environmental pollution is an important topic at present.

[0003] The existing technology for the treatment of fructose production wastewater mainly treats the drainage by physical and chemical methods to reduce the content of pollutants, so that it can reach the standard of discharge or recycling. For example, the suspended solids, organic matter and inorganic matter in the drainage can be removed by sedimentation, filtration, oxidation and reduction, etc.

[0004] However, although the existing technology for the treatment of sugar production wastewater can effectively treat industrial drainage, there are still some problems: the existing technology often cannot completely remove the pollutants in the drainage during the treatment of the drainage in the production process of high fructose corn syrup, especially acetaldehyde and COD, which makes the drainage still unable to be recycled and reused, and usually requires special personnel to operate and manage, thereby increasing the operation cost. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a fructose production wastewater recovery device aiming at the problems of high-pollution wastewater unable to be recycled and reused and high treatment cost and low efficiency in the prior art.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0007] The fruit sugar production wastewater recovery device comprises a raw water tank for containing liquefaction condensate water and vacuum pump drainage in a fruit sugar production process, a bag filter, a ceramic membrane ultrafiltration device, an ultrafiltration product water tank, a precision filter, a reverse osmosis device and a reverse osmosis product water tank; the outlet of the raw water tank is connected with the inlet of the bag filter through a pipeline; the outlet of the bag filter is connected with the inlet of the ceramic membrane ultrafiltration device through a pipeline, and the outlet of the ultrafiltration device is connected with the inlet of the ultrafiltration product water tank through a pipeline; the outlet of the ultrafiltration product water tank is connected with the precision filter through a pipeline; the outlet of the precision filter is connected with the inlet of the reverse osmosis device through a pipeline; and the outlet of the reverse osmosis device is connected with the reverse osmosis product water tank through a pipeline.

[0008] Preferably, the pipeline between the bag filter inlet and the raw water tank is provided with a bag filter; the pipeline between the ultrafiltration product water tank and the precision filter is provided with an ultrafiltration device; the pipeline between the precision filter and the reverse osmosis device is provided with a precision filter; and the pipeline between the reverse osmosis device and the reverse osmosis product water tank is provided with a reverse osmosis device.

[0009] Preferably, the inlet of the raw water tank is connected with the outlet of a condensate water pipeline and the outlet of a vacuum pump drainage pipeline of a fruit sugar production device; and the outlet of the reverse osmosis product water tank is connected with the inlet of the condensate water pipeline and the inlet of the vacuum pump drainage pipeline of the fruit sugar production device.

[0010] Compared with the prior art, the fruit sugar production wastewater recovery device has the following advantages and positive effects:

[0011] The fruit sugar production wastewater recovery device comprises a raw water tank for containing liquefaction condensate water and vacuum pump drainage in a fruit sugar production process, a bag filter, a ceramic membrane ultrafiltration device, an ultrafiltration product water tank, a precision filter, a reverse osmosis device and a reverse osmosis product water tank; the outlet of the raw water tank is connected with the inlet of the bag filter through a pipeline; the outlet of the bag filter is connected with the inlet of the ceramic membrane ultrafiltration device through a pipeline, and the outlet of the ultrafiltration device is connected with the inlet of the ultrafiltration product water tank through a pipeline; the outlet of the ultrafiltration product water tank is connected with the precision filter through a pipeline; the outlet of the precision filter is connected with the inlet of the reverse osmosis device through a pipeline; and the outlet of the reverse osmosis device is connected with the reverse osmosis product water tank through a pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0013] Figure 1 The system flow chart of the present application;

[0014] In the above figures, 1, raw water tank; 2, bag filter; 3, ceramic membrane ultrafiltration device; 4, ultrafiltration water tank; 5, precision filter; 6, reverse osmosis device; 7, reverse osmosis water tank; 8, raw water pump; 9, reverse osmosis booster pump; 10, high pressure pump; 11, recycled water collecting pump. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0017] Example 1, as Figure 1As shown, the fructose production wastewater recovery device of the present application comprises a raw water tank 1 containing liquefaction condensate water and vacuum pump drainage in the fructose production process, a bag filter 2, a ceramic membrane ultrafiltration device 3, an ultrafiltration water tank 4, a precision filter 5, a reverse osmosis device 6 and a reverse osmosis water tank 7; the outlet of the raw water tank 1 is connected to the inlet of the bag filter 2 through a pipeline; the outlet of the bag filter 2 is connected to the inlet of the ceramic membrane ultrafiltration device 3 through a pipeline, and the outlet of the ultrafiltration device 3 is connected to the inlet of the ultrafiltration water tank 4 through a pipeline; the outlet of the ultrafiltration water tank 4 is connected to the precision filter 5 through a pipeline; the outlet of the precision filter 5 is connected to the inlet of the reverse osmosis device 6 through a pipeline; the outlet of the reverse osmosis device 6 is connected to the reverse osmosis water tank 7 through a pipeline; during use, the liquefaction condensate water and vacuum pump drainage in the fructose production process are discharged into the bag filter 2 and the ceramic membrane ultrafiltration system of the ceramic membrane ultrafiltration device 3 for preliminary filtration, the ceramic membrane ultrafiltration system can remove most of the impurities in the wastewater to obtain a relatively clean water sample; the water sample after preliminary filtration enters the reverse osmosis system comprising the precision filter 5 and the reverse osmosis device 6 for further filtration, the reverse osmosis system can remove the residual impurities and pollutants in the wastewater to obtain recovered water meeting the demand of the fructose production ion exchange regenerated water, and finally the recovered water enters the reverse osmosis water tank 7 for storage for the next fructose production; the cooperation of the ceramic membrane ultrafiltration system and the reverse osmosis system can effectively reduce the content of acetaldehyde, impurities and COD in the wastewater, so that the recovered water meets the demand of the fructose production ion exchange regenerated water, realizes effective treatment and recycling of the wastewater, and solves the problems of low wastewater treatment efficiency and water resource waste in the prior art;

[0018] A raw water pump 8 is arranged on the pipeline between the inlet of the bag filter 2 and the raw water tank 1; a reverse osmosis booster pump 9 is further arranged on the pipeline between the ultrafiltration water tank 4 and the precision filter 5; a high-pressure pump 10 is further arranged on the pipeline between the precision filter 5 and the reverse osmosis device 6; and a recovered water collecting pump 11 is further arranged between the reverse osmosis device 6 and the reverse osmosis water tank 7;

[0019] The inlet of the raw water tank 1 is communicated with the outlet of the condensate water pipeline and the outlet of the vacuum pump drainage pipeline of the fructose production device; and the outlet of the reverse osmosis water tank 7 is communicated with the inlet of the condensate water pipeline and the inlet of the vacuum pump drainage pipeline of the fructose production device.

[0020] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A fructose production wastewater recovery device, characterized in that, The system includes a raw water tank (1) containing liquefied condensate and vacuum pump drainage from the fructose production process, a bag filter (2), a ceramic membrane ultrafiltration device (3), an ultrafiltration product water tank (4), a precision filter (5), a reverse osmosis device (6), and a reverse osmosis product water tank (7); the outlet of the raw water tank (1) is connected to the inlet of the bag filter (2) via a pipe; the outlet of the bag filter (2) is connected to the inlet of the ceramic membrane ultrafiltration device (3) via a pipe, the outlet of the ultrafiltration device (3) is connected to the inlet of the ultrafiltration product water tank (4) via a pipe; the outlet of the ultrafiltration product water tank (4) is connected to the precision filter (5) via a pipe; the outlet of the precision filter (5) is connected to the inlet of the reverse osmosis device (6) via a pipe; and the outlet of the reverse osmosis device (6) is connected to the reverse osmosis product water tank (7) via a pipe.

2. The fructose production wastewater recovery device according to claim 1, characterized in that, A raw water pump (8) is installed on the pipeline between the inlet of the bag filter (2) and the raw water tank (1); a reverse osmosis booster pump (9) is also installed on the pipeline between the ultrafiltration product water tank (4) and the precision filter (5); a high-pressure pump (10) is also installed on the pipeline between the precision filter (5) and the reverse osmosis device (6); and a recycled water collection pump (11) is also installed between the reverse osmosis device (6) and the reverse osmosis product water tank (7).

3. The fructose production wastewater recovery device according to claim 1, characterized in that, The inlet of the raw water tank (1) is connected to the outlet of the condensate pipe of the fructose production device and the outlet of the vacuum pump drainage pipe; the outlet of the reverse osmosis product water tank (7) is connected to the inlet of the condensate pipe of the fructose production device and the inlet of the vacuum pump drainage pipe.

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