CN211847565U - Organic wastewater treatment system - Google Patents
Organic wastewater treatment system Download PDFInfo
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- CN211847565U CN211847565U CN202020201400.XU CN202020201400U CN211847565U CN 211847565 U CN211847565 U CN 211847565U CN 202020201400 U CN202020201400 U CN 202020201400U CN 211847565 U CN211847565 U CN 211847565U
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Abstract
The utility model discloses an organic wastewater treatment system, the system includes: the water intake pump, take heating device's water pitcher that advances, membrane device water intake pump, pervaporation membrane device, condensing equipment, the vacuum pump, go out the water pitcher, pervaporation membrane device's delivery port pipeline includes first branch road and second branch road, be equipped with first valve on the first branch road, be equipped with the second valve on the second branch road, the import of water pitcher is connected into in first branch road, the import of water pitcher is connected out in the second branch road, first valve is used for controlling the waste water that does not satisfy the play water condition and gets into the water pitcher, the waste water that the second valve is used for controlling to satisfy the play water condition gets into out the water pitcher. The technical scheme provided by the utility model can effectively reduce the organic matter content of pending waste water, improves the organic matter rate of recovery, prevents to cause environmental pollution.
Description
Technical Field
The utility model belongs to the technical field of liquid waste treatment, in particular to organic wastewater treatment system.
Background
The method is characterized in that high-concentration organic wastewater with single organic component, concentration of 5-30% and organic boiling point of 120-250 ℃, such as pharmaceutical wastewater, chemical wastewater, coating wastewater and the like, directly enters a biochemical system and easily impacts the system. The organic matter needs to be degraded to some extent before it can be disposed of. The methods of advanced oxidation, incineration and the like are adopted, so that the energy consumption is high, the cost is high, and the resource waste is caused.
Aiming at a mixture with a near boiling point and a constant boiling point which is difficult to separate or cannot be separated by common rectification, the prior art adopts a Pervaporation (PV) membrane separation technology to separate, the separation technology removes trace water in an organic solvent and a mixed solvent, has obvious economic and technical advantages for separating a small amount of organic pollutants in wastewater, but still has the problem that the recovery efficiency is not high, so that the product cannot meet the discharge requirement or the standard of subsequent treatment. In addition, for different batches of wastewater, the existing process cannot well judge the batch reaction end point, so that the operation difficulty exists in batch connection.
In view of the above, it is an urgent problem in the art to overcome the above-mentioned drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem of low recovery efficiency of the separation and recovery process of high-concentration organic wastewater in the prior art, the utility model provides an organic wastewater treatment system on one hand, which comprises a water inlet pump, a water inlet tank with a heating device, a membrane device water inlet pump, a pervaporation membrane device, a condensing device and a vacuum pump, wherein the water inlet pump is connected with the inlet of the water inlet tank, the outlet of the water inlet tank is connected with the inlet of the pervaporation membrane device through the membrane device water inlet pump, the gas outlet of the pervaporation membrane device is connected with the gas inlet of the condensing device, the vacuum pump generates low-pressure vacuum for the downstream of the membrane of the pervaporation membrane device,
go out the water pitcher, the delivery port pipeline of pervaporation membrane device includes first branch road and second branch road, is equipped with first valve on the first branch road, is equipped with the second valve on the second branch road, and the import of water pitcher is connected into in the first branch road, and the import of water pitcher is connected out in the second branch road, and first valve is used for controlling the waste water that does not satisfy the water condition and gets into the water pitcher, and the second valve is used for controlling the waste water that satisfies the water condition and gets into out the water pitcher.
The effluent of the pervaporation membrane device is subjected to water quality detection, the flow direction is controlled according to the detection result, so that the wastewater which does not meet the effluent condition enters the water inlet tank to be treated again, and the batch of organic wastewater finally reaches the effluent condition through multiple circulation.
Furthermore, a water outlet pipeline of the pervaporation membrane device is provided with a moisture analyzer. The water analyzer is used for analyzing the water content of the wastewater, indirectly indicating the Chemical Oxygen Demand (COD) of the wastewater and realizing the rapid determination of the COD of the wastewater.
Further, the water inlet tank is provided with a liquid level detection device. By arranging the liquid level detection device, the water level of the water inlet tank can be detected, so that whether the treatment of the wastewater of the batch is finished or not is judged and is used as a signal basis for introducing the wastewater of the next batch.
Further, condensing equipment includes the one-level condenser, the secondary condenser, the one-level condensate storage tank, the secondary condensate storage tank, the gas outlet of one-level condenser connects the gas inlet of secondary condenser, the condensate exit linkage one-level condensate storage tank of one-level condenser, the condensate exit linkage secondary condensate storage tank of secondary condenser, the gas outlet of secondary condenser connects the import of vacuum pump, the import of water pitcher is entered in the exit linkage of secondary condensate storage tank, the one-level condenser is used for condensing the organic matter, the secondary condenser is used for the comdenstion water.
The mixed steam produced at the downstream of the pervaporation membrane device comprises high-boiling organic matters and water, and the organic matters and the water can be effectively separated by adopting secondary condensation with different condensation temperatures. The separated high-concentration organic matter can be recycled. The separated water still contains organic matters with certain concentration and is led into a water inlet tank for circular treatment, so that the pollution caused by drainage is prevented, and the treatment effect of organic wastewater is improved. In addition, the air exhaust load of the vacuum pump is reduced by adopting the condensation before the vacuum pump, and the vacuum degree is ensured.
Further, the device comprises a three-level condenser and a three-level condensate storage tank, wherein the outlet of the vacuum pump is connected with the gas inlet of the three-level condenser, the condensate outlet of the three-level condenser is connected with the three-level condensate storage tank, the outlet of the three-level condensate storage tank is connected with a water outlet tank, and the three-level condenser is used for condensing the uncondensed gas of the two-level condenser under normal pressure.
And the three-stage condenser adopts a vacuum pump and then carries out three-stage condensation, namely condensation under normal pressure, the condensation efficiency can reach 99 percent, and the pollution of uncondensed gas to the atmosphere before the vacuum pump is prevented. The condensed liquid basically meets the water inlet condition of the water outlet tank, so that the condensed liquid can be directly introduced into the water outlet tank.
Furthermore, the device comprises a security filter, and the water inlet pump is connected with an inlet of the water inlet tank through the security filter. The wastewater to be treated containing suspended impurities is filtered in advance, so that the running stability and efficiency of a subsequent system can be improved.
Furthermore, the water inlet tank, the membrane device water inlet pump, the pervaporation membrane device, the condensing device, the vacuum pump, the water outlet tank, and the connecting pipelines between the water inlet tank, the membrane device water inlet pump, the pervaporation membrane device, the condensing device, the vacuum pump and the water outlet tank are all provided with heat-insulating layers, and the thickness of each heat-insulating layer is 3-5 cm. Because the treatment process in the system has certain requirements on the temperature, the arrangement of the heat-insulating layer can ensure that the wastewater treatment steps in all stages can be carried out at the temperature required by the process, and the energy consumption is saved.
Furthermore, the membrane used by the pervaporation device is an organic matter permeable membrane, and the components of the organic matter permeable membrane comprise one or more of polyvinyl alcohol, polyacrylonitrile, polyacrylic acid, polyamide, polyimide, high-molecular ionomer, chitosan, sodium alginate, cellulose acetate and cellulose acetate modified materials.
Compared with the prior art, the utility model provides a technical scheme has following beneficial effect at least: 1. through pervaporation technology, fractional condensation and full wastewater circulating treatment in the system, high-concentration organic matters are recovered, the treatment effect is improved, the concentration of the organic matters is up to more than 90%, the recovery rate is up to 90%, and the organic matters in the treated wastewater are reduced to the concentration range which can be degraded by microorganisms; 2. the air exhaust load of the vacuum pump is reduced by condensation before the vacuum pump, the vacuum degree is ensured, the condensation efficiency reaches 99 percent by condensation after the vacuum pump, and the pollution of uncondensed gas before the vacuum pump to the atmosphere is prevented; 3. through setting up the moisture analyzer, realize quick sign waste water chemical oxygen demand COD to judge batch reaction terminal point, be convenient for realize batch processing's automatic linking, realized the operation of pervaporation system and operated portably ization.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the device and method of use in accordance with the invention and, together with the detailed description, serve to explain the advantages and principles of the invention. In the drawings:
FIG. 1 is a schematic view of an organic wastewater treatment system provided in example 1 of the present invention;
FIG. 2 is a schematic view of an organic wastewater treatment system provided in example 2 of the present invention;
FIG. 3 is a schematic view of an organic wastewater treatment system provided in example 3 of the present invention.
Description of the reference numerals
1-a water inlet pump, 2-a water inlet tank, 3-a membrane device water inlet pump, 4-a pervaporation membrane device, 5-a primary condenser, 6-a primary condensate storage tank, 7-a water outlet tank, 8-a vacuum pump, 9-a first valve, 10-a second valve, 11, 13, 20, 23-a temperature sensor, 12-a moisture analyzer, 14-a pressure sensor, 15-a heating device, 16-a liquid level detection device, 17-a security filter, 18-a secondary condenser, 19-a secondary condensate storage tank, 21-a tertiary condenser, 22-a tertiary condensate storage tank
Detailed Description
The following detailed description of the embodiments of the present invention refers to the accompanying drawings. However, the present invention is not limited to the embodiments described below. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other, and the technical idea of the present invention may be combined with other known techniques or other techniques similar to those known techniques.
Example 1
Still include out the water pitcher, the delivery port pipeline of pervaporation membrane device includes first branch road and second branch road, is equipped with first valve on the first branch road, is equipped with the second valve on the second branch road, and the import of water pitcher is connected into in the first branch road, and the import of a water pitcher is connected out in the second branch road, and first valve is used for controlling the waste water that does not satisfy the play water condition and gets into the water pitcher, and the second valve is used for controlling the waste water that satisfies the play water condition and gets into out the water pitcher.
The use method of the organic wastewater treatment system comprises the following steps:
s1: sending the wastewater to be treated into a water inlet tank through a water inlet pump, and heating the wastewater to a preset temperature of 40-90 ℃ by adopting electric heating or heating medium indirect heating;
in step S1, the water inlet pump is turned on when the liquid level detection device of the water inlet tank detects that the liquid level of the water inlet tank is at the lower limit of the liquid level, the water inlet pump is turned off when the liquid level detection device detects that the liquid level of the water inlet tank is at the upper limit of the liquid level, the heating device is turned on, the membrane device water inlet pump is turned on after the temperature of the wastewater in the water inlet tank reaches the preset temperature, and the wastewater in the water inlet tank is sent to the pervaporation membrane device through the membrane device water inlet pump.
S2: sending the wastewater heated to a preset temperature into a pervaporation membrane device, keeping the vacuum degree of the downstream membrane of the pervaporation membrane device at 0-2000 Pa through a vacuum pump, carrying out pervaporation separation on the wastewater, sending the outlet gas of the pervaporation membrane device into a condensing device for condensation treatment, carrying out detection analysis on the outlet water of the pervaporation membrane device, analyzing by an online moisture analyzer to judge whether the outlet water condition is met, sending the outlet water meeting the outlet water condition into a water outlet tank, and sending the outlet water not meeting the outlet water condition into a water inlet tank for continuous circulation treatment.
In step S2, when the effluent of the pervaporation membrane device does not meet the effluent condition, opening the first valve and closing the second valve;
and when the effluent of the pervaporation membrane device meets the effluent condition, closing the first valve, opening the second valve, closing the membrane device water inlet pump and the second valve until the liquid level of the water inlet tank reaches the lower limit of the liquid level, opening the water inlet pump, and treating the wastewater of the next batch by the system.
Example 2
The embodiment 2 of the utility model provides an organic wastewater treatment system, wherein organic wastewater treatment system is as shown in figure 2, include: the system comprises a water inlet pump, a water inlet tank with a heating device, a membrane device water inlet pump, a pervaporation membrane device, a primary condenser, a secondary condenser, a primary condensate storage tank, a secondary condensate storage tank and a vacuum pump, wherein the water inlet pump is connected with an inlet of the water inlet tank, an outlet of the water inlet tank is connected with an inlet of the pervaporation membrane device through the membrane device water inlet pump, an air outlet of the pervaporation membrane device is connected with an air inlet of the condensing device, and the vacuum pump generates low-pressure vacuum for the membrane downstream of the pervaporation membrane device. A water outlet pipeline of the pervaporation membrane device is provided with a moisture analyzer. The water inlet tank is provided with a liquid level detection device.
The gas outlet of the first-stage condenser is connected with the gas inlet of the second-stage condenser, the condensate outlet of the first-stage condenser is connected with the first-stage condensate storage tank, the condensate outlet of the second-stage condenser is connected with the second-stage condensate storage tank, the gas outlet of the second-stage condenser is connected with the inlet of the vacuum pump, the outlet of the second-stage condensate storage tank is connected with the inlet of the water inlet tank, the first-stage condenser is used for condensing organic matters, and the.
Still include out the water pitcher, the delivery port pipeline of pervaporation membrane device includes first branch road and second branch road, is equipped with first valve on the first branch road, is equipped with the second valve on the second branch road, and the import of water pitcher is connected into in the first branch road, and the import of a water pitcher is connected out in the second branch road, and first valve is used for controlling the waste water that does not satisfy the play water condition and gets into the water pitcher, and the second valve is used for controlling the waste water that satisfies the play water condition and gets into out the water pitcher.
The water inlet pump is connected with the inlet of the water inlet tank through the security filter.
The use method of the organic wastewater treatment system comprises the following steps:
s1: feeding the wastewater to be treated into a cartridge filter through a water inlet pump to remove suspended matters, then feeding the wastewater into a water inlet tank, and heating the wastewater to a preset temperature of 40-90 ℃ by adopting electric heating or heating medium indirect heating;
in step S1, the water inlet pump is turned on when the liquid level detection device detects that the liquid level of the water inlet tank is at the lower limit of the liquid level, the water inlet pump is turned off when the liquid level detection device detects that the liquid level of the water inlet tank is at the upper limit of the liquid level, the heating device is turned on, the membrane device water inlet pump is turned on after the temperature of the wastewater in the water inlet tank reaches the preset temperature, and the wastewater in the water inlet tank is sent to the pervaporation membrane device through the membrane device water inlet pump.
S2: sending the wastewater heated to a preset temperature into a pervaporation membrane device, keeping the vacuum degree of the downstream membrane of the pervaporation membrane device at 0-2000 Pa through a vacuum pump, carrying out pervaporation separation on the wastewater, sending the outlet gas of the pervaporation membrane device into a condensing device for condensation treatment, carrying out detection analysis on the outlet water of the pervaporation membrane device, analyzing by an online moisture analyzer to judge whether the outlet water condition is met, sending the outlet water meeting the outlet water condition into a water outlet tank, and sending the outlet water not meeting the outlet water condition into a water inlet tank for continuous circulation treatment.
In step S2, when the effluent of the pervaporation membrane device does not meet the effluent condition, opening the first valve and closing the second valve;
and when the effluent of the pervaporation membrane device meets the effluent condition, closing the first valve, opening the second valve, closing the membrane device water inlet pump and the second valve until the liquid level of the water inlet tank reaches the lower limit of the liquid level, opening the water inlet pump, and treating the wastewater of the next batch by the system.
In step S2, the condensation process includes the steps of:
s21: sending the outlet gas of the pervaporation membrane device into a first condenser for primary condensation to obtain primary condensate, wherein the primary condensate is mainly liquid organic matter;
s22: sending the outlet gas from the first condenser into a second condenser for secondary condensation to obtain secondary condensate, wherein the condensate is liquid water containing part of organic matters,
the first-stage condensation and the second-stage condensation are carried out under a low-pressure vacuum environment, the low-pressure vacuum environment is obtained by vacuumizing through a vacuum pump arranged behind a second condenser, the second-stage condensate enters a water inlet tank to be circularly processed, the condensation temperature of the first-stage condensation is 0-25 ℃, and the condensation temperature of the second-stage condensation is-20-0 ℃.
Example 3
The gas outlet of the first-stage condenser is connected with the gas inlet of the second-stage condenser, the condensate outlet of the first-stage condenser is connected with the first-stage condensate storage tank, the condensate outlet of the second-stage condenser is connected with the second-stage condensate storage tank, the gas outlet of the second-stage condenser is connected with the inlet of the vacuum pump, the outlet of the second-stage condensate storage tank is connected with the inlet of the water inlet tank, the first-stage condenser is used for condensing organic matters, and the.
Still include out the water pitcher, the delivery port pipeline of pervaporation membrane device includes first branch road and second branch road, is equipped with first valve on the first branch road, is equipped with the second valve on the second branch road, and the import of water pitcher is connected into in the first branch road, and the import of a water pitcher is connected out in the second branch road, and first valve is used for controlling the waste water that does not satisfy the play water condition and gets into the water pitcher, and the second valve is used for controlling the waste water that satisfies the play water condition and gets into out the water pitcher.
The water inlet pump is connected with the inlet of the water inlet tank through the security filter.
The three-stage condenser is characterized by further comprising a three-stage condenser and a three-stage condensate storage tank, the outlet of the vacuum pump is connected with the gas inlet of the three-stage condenser, the condensate outlet of the three-stage condenser is connected with the three-stage condensate storage tank, the outlet of the three-stage condensate storage tank is connected with a water outlet tank, and the three-stage condenser is used for condensing the uncondensed gas of the two-stage condenser under.
The water inlet tank, the membrane device water inlet pump, the pervaporation membrane device, the condensing device, the vacuum pump, the water outlet tank, the water inlet tank, the membrane device water inlet pump, the pervaporation membrane device, the condensing device, the vacuum pump and the water outlet tank are all provided with heat preservation layers, and the thickness of the heat preservation layers is 3-5 cm.
The membrane used by the pervaporation device is an organic matter permeable membrane, and the components of the organic matter permeable membrane comprise one or more of polyvinyl alcohol, polyacrylonitrile, polyacrylic acid, polyamide, polyimide, high-molecular ionomer, chitosan, sodium alginate, cellulose acetate and cellulose acetate modified materials.
The system is adopted to treat specific organic wastewater, the organic wastewater is coating wastewater containing 10% of ethylene glycol monobutyl ether after coagulation treatment, the COD is 230000mg/L, the coating wastewater is difficult to treat directly by a biochemical method, and the biochemical treatment can be carried out only when the COD is reduced to 50000 mg/L. As shown in fig. 1, the processing method includes the steps of:
s1: sending the wastewater to be treated into a cartridge filter through a water inlet pump to remove suspended matters, then sending the wastewater into a water inlet tank, and heating the wastewater to 50 ℃ by adopting electric heating;
in step S1, the water inlet pump is turned on when the liquid level detection device detects that the liquid level of the water inlet tank is at the lower limit of the liquid level, the water inlet pump is turned off when the liquid level detection device detects that the liquid level of the water inlet tank is at the upper limit of the liquid level, the heating device is turned on, the membrane device water inlet pump is turned on after the temperature of the wastewater in the water inlet tank reaches the preset temperature, and the wastewater in the water inlet tank is sent to the pervaporation membrane device through the membrane device water inlet pump.
S2: sending the wastewater heated to a preset temperature into a pervaporation membrane device, keeping the vacuum degree of the downstream of a membrane of the pervaporation membrane device at 500-1000 Pa through a vacuum pump, carrying out pervaporation separation on the wastewater, sending the outlet gas of the pervaporation membrane device into a condensing device for condensation treatment, carrying out moisture content detection on the outlet water of the pervaporation membrane device by adopting an online moisture analyzer, sending the outlet water with the moisture content reaching 98% (corresponding to the COD of 50000mg/L) into a water outlet tank, and sending the outlet water with the moisture content not reaching 98% into a water inlet tank for continuous circulation treatment.
In step S2, when the effluent of the pervaporation membrane device does not meet the effluent condition, opening the first valve and closing the second valve;
and when the effluent of the pervaporation membrane device meets the effluent condition, closing the first valve, opening the second valve, closing the membrane device water inlet pump and the second valve until the liquid level of the water inlet tank reaches the lower limit of the liquid level, opening the water inlet pump, and treating the wastewater of the next batch by the system.
In step S2, the condensation process includes the steps of:
s21: sending the outlet gas of the pervaporation membrane device into a first condenser for primary condensation to obtain primary condensate, wherein the primary condensate is mainly liquid organic matters, and the organic matter content reaches 90%;
s22: and (3) sending the outlet gas from the first condenser to a second condenser for secondary condensation to obtain secondary condensate, wherein the condensate is liquid water containing part of organic matters, and the content of the organic matters is 5%.
The first-stage condensation and the second-stage condensation are both carried out in a low-pressure vacuum environment, the low-pressure vacuum environment is obtained by vacuumizing a vacuum pump arranged behind a second condenser, the second-stage condensate enters a water inlet tank for circulation treatment, the condensation temperature of the first-stage condensation is 10 ℃, and the condensation temperature of the second-stage condensation is-3 ℃.
S23: and (3) sending the outlet gas from the second condenser into a third condenser, carrying out three-stage condensation at the condensation temperature of 5 ℃ under normal pressure to obtain three-stage condensate with the organic matter content of 0.5%, and sending the condensate into a water outlet tank. And the effluent in the effluent tank enters a subsequent biochemical treatment system.
The terms "first" and "second" as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, unless otherwise specified. Similarly, modifiers similar to "about", "approximately" or "approximately" that occur before a numerical term herein typically include the same number, and their specific meaning should be read in conjunction with the context. Similarly, unless a specific number of a claim recitation is intended to cover both the singular and the plural, and also that claim may include both the singular and the plural.
In the description of the specific embodiments above, the use of the directional terms "upper", "lower", "left", "right", "top", "bottom", "vertical", "transverse", and "lateral", etc., are for convenience of description only and should not be considered limiting. Such as ….
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.
Claims (8)
1. An organic wastewater treatment system, comprising: the device comprises a water inlet pump, a water inlet tank with a heating device, a membrane device water inlet pump, a pervaporation membrane device, a condensing device and a vacuum pump, wherein the water inlet pump is connected with an inlet of the water inlet tank, an outlet of the water inlet tank is connected with an inlet of the pervaporation membrane device through the membrane device water inlet pump, an air outlet of the pervaporation membrane device is connected with an air inlet of the condensing device, the vacuum pump generates low-pressure vacuum for the membrane downstream of the pervaporation membrane device,
go out the water pitcher, the delivery port pipeline of pervaporation membrane device includes first branch road and second branch road, be equipped with first valve on the first branch road, be equipped with the second valve on the second branch road, first branch road is connected the import of intaking the water pitcher, the second branch road is connected the import of going out the water pitcher, first valve is used for controlling the waste water that does not satisfy the play water condition to get into the water pitcher, the second valve is used for controlling the waste water that satisfies the play water condition to get into the play water pitcher.
2. The organic wastewater treatment system according to claim 1, wherein the water outlet pipeline of the pervaporation membrane device is provided with a moisture analyzer.
3. The organic wastewater treatment system according to claim 1, wherein the water feed tank is provided with a liquid level detection device.
4. The organic wastewater treatment system of claim 1, wherein the condensing device comprises a primary condenser, a secondary condenser, a primary condensate storage tank and a secondary condensate storage tank, a gas outlet of the primary condenser is connected with a gas inlet of the secondary condenser, a condensate outlet of the primary condenser is connected with the primary condensate storage tank, a condensate outlet of the secondary condenser is connected with the secondary condensate storage tank, a gas outlet of the secondary condenser is connected with an inlet of the vacuum pump, an outlet of the secondary condensate storage tank is connected with an inlet of the water inlet tank, the primary condenser is used for condensing organic matters, and the secondary condenser is used for condensing water.
5. The organic wastewater treatment system of claim 4, comprising a three-stage condenser and a three-stage condensate storage tank, wherein the outlet of the vacuum pump is connected with the gas inlet of the three-stage condenser, the condensate outlet of the three-stage condenser is connected with the three-stage condensate storage tank, the outlet of the three-stage condensate storage tank is connected with the water outlet tank, and the three-stage condenser is used for condensing uncondensed gas of the two-stage condenser under normal pressure.
6. The organic wastewater treatment system of claim 1, comprising a cartridge filter, wherein the inlet pump is connected to an inlet of the inlet tank via the cartridge filter.
7. The organic wastewater treatment system according to any one of claims 1 to 6, wherein the water inlet tank, the membrane device water inlet pump, the pervaporation membrane device, the condensing device, the vacuum pump, the water outlet tank, and connecting pipelines between the water inlet tank, the membrane device water inlet pump, the pervaporation membrane device, the condensing device, the vacuum pump and the water outlet tank are all provided with an insulating layer, and the thickness of the insulating layer is 3-5 cm.
8. The organic wastewater treatment system of any one of claims 1 to 6, wherein the membrane used in the pervaporation device is an organic permeable membrane, and the components of the organic permeable membrane comprise one or more of polyvinyl alcohol, polyacrylonitrile, polyacrylic acid, polyamide, polyimide, polymer ionomer, chitosan, sodium alginate, cellulose acetate, and cellulose acetate modified material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115939A (en) * | 2020-02-24 | 2020-05-08 | 上海电气集团股份有限公司 | Organic wastewater treatment system and method |
| CN114716098A (en) * | 2022-03-25 | 2022-07-08 | 上海电气集团股份有限公司 | Treatment method and treatment system for crystalline silicon texturing wastewater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115939A (en) * | 2020-02-24 | 2020-05-08 | 上海电气集团股份有限公司 | Organic wastewater treatment system and method |
| CN114716098A (en) * | 2022-03-25 | 2022-07-08 | 上海电气集团股份有限公司 | Treatment method and treatment system for crystalline silicon texturing wastewater |
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