CN215208823U - Wastewater treatment system - Google Patents
Wastewater treatment system Download PDFInfo
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- CN215208823U CN215208823U CN202023092415.6U CN202023092415U CN215208823U CN 215208823 U CN215208823 U CN 215208823U CN 202023092415 U CN202023092415 U CN 202023092415U CN 215208823 U CN215208823 U CN 215208823U
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Abstract
The utility model discloses a wastewater treatment system. The utility model discloses a wastewater treatment system, which comprises an adsorption device, a control valve, a detector, an ozone generator and a controller. An inlet end of the adsorption device receives the wastewater through a first pipeline, and an outlet end of the adsorption device discharges treated water through a second pipeline, wherein the adsorption device is provided with a catalyst material for adsorbing organic matters in the wastewater. The control valve is arranged on the first pipeline and used for controlling the on-off of the pipeline to enable the adsorption device to start or stop receiving the wastewater. The detector is configured to detect a water quality parameter associated with the organic matter in the treated water. The ozone generator is configured to provide ozone to the adsorption device. The controller is electrically connected to the control valve, the detector and the ozone generator. The utility model discloses can promote effluent treatment plant's efficiency.
Description
Technical Field
The utility model relates to a wastewater treatment system, in particular to a high-efficiency wastewater treatment system combining an adsorptive catalyst and an ozone oxidation technology.
Background
In order to reduce the negative impact of organic wastewater on the environment, the organic wastewater needs to be treated before being discharged into the environment. At present, a common organic wastewater treatment device uses an adsorption material with adsorption property to adsorb organic pollutants in organic wastewater to the surface of the adsorption material, so as to reduce the concentration of the organic pollutants in the wastewater.
However, after a certain amount of organic wastewater is treated by the adsorbent, the adsorbent reaches an adsorption saturation state and cannot adsorb organic substances any more. At present, the regeneration technology of the adsorption material is mainly a steam activation method, but the method only utilizes the volatility of organic matters to volatilize the organic matters combined on the adsorption material into a gas collecting pipeline, and does not actually decompose the organic matters. Therefore, the gas containing organic matters needs to be treated by matching with a gas treatment device, so that the wastewater treatment steps are complicated, and the effect of reducing the whole organic pollutants in the environment is limited.
Therefore, it is an important subject to be solved by the industry to improve the efficiency of a high-efficiency wastewater treatment system by improving the structure design to simplify the treatment of organic wastewater.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a not enough high-efficient effluent disposal system that provides to prior art, it combines adsorptivity catalyst and ozone oxidation technique, when reaching water purification, can be concentrated the organic matter at solid phase catalyst to improve follow-up ozone catalytic oxidation's efficiency, consequently compare in current organic waste water adsorption treatment system and have more economic benefits.
In order to solve the above technical problem, one of the technical solutions of the present invention is to provide a high efficiency wastewater treatment system, which comprises an adsorption device, a control valve, a detector, an ozone generator, and a controller. A water inlet end of the adsorption device receives the wastewater through a first pipeline, and a water outlet end of the adsorption device discharges treated water through a second pipeline, wherein the adsorption device is provided with a catalyst material for adsorbing organic matters in the wastewater; the control valve is arranged on the first pipeline and used for controlling the on-off of the pipeline so as to enable the adsorption device to start or stop receiving the wastewater; the detector is configured to detect a water quality parameter associated with the organic matter in the treated water; the ozone generator is configured to provide ozone to the adsorption device; the controller is electrically connected to the control valve, the detector and the ozone generator.
Further, when the water quality parameter measured by the detector is higher than a design treated water quality standard value, the controller closes the control valve to disconnect the first pipeline to stop introducing the wastewater, and starts the ozone generator to provide ozone to the adsorption device.
Further, the detector is disposed on the second pipeline.
Furthermore, the detector is arranged at the water outlet end of the adsorption device.
Further, the water quality parameter is Total Organic Carbon (TOC) or Chemical Oxygen Demand (COD).
Furthermore, the efficient wastewater treatment system further comprises a wastewater storage device, wherein the wastewater storage device is used for storing the wastewater and is connected with the adsorption device through the first pipeline.
Furthermore, the high-efficiency wastewater treatment system further comprises a pretreatment device, wherein the pretreatment device is a trash holding, sand settling, oil removing or filtering device and is connected with the wastewater storage device through a third pipeline.
Furthermore, the high-efficiency wastewater treatment system further comprises a reverse osmosis device, wherein the reverse osmosis device is communicated with the adsorption device through the second pipeline and is used for purifying the treated water.
Still further, the substrate of the catalyst material is ferric hydroxide, and the catalyst material is present as cylindrical particles of 3-10 millimeters (mm).
Further, the catalyst material has a BET specific surface area of 1 to 20 square meters per gram (m)2Per gram) and the specific gravity of the catalyst material is from 1.1 to 1.5 grams per cubic centimeter (g/cm)3)。
Further, the wastewater is organic wastewater with Chemical Oxygen Demand (COD) less than 1600 milligrams per liter (mg/L).
The utility model has the advantages of, one of them beneficial effect lies in, the utility model provides a waste water treatment device, it can pass through "adsorption equipment is through disposing in order to receive a waste water through a first pipeline to discharge a processing water through a second pipeline", "the control valve set up in on the first pipeline, be used for control the break-make of pipeline makes adsorption equipment begins or stops to receive waste water", "the detector is through disposing in order to detect in the processing water a relevant water quality parameter of organic matter" and "ozone generator are through disposing in order to provide ozone extremely adsorption equipment's technical characterstic to promote waste water treatment device's efficiency.
For a further understanding of the nature and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the invention.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of the present invention.
Fig. 2 is a schematic diagram of a second embodiment of the present invention.
Fig. 3 is a schematic view of a third embodiment of the present invention.
Fig. 4 is a schematic view of a fourth embodiment of the present invention.
Detailed Description
The following is a description of the embodiments of the "high efficiency wastewater treatment system" disclosed in the present invention by specific examples, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The utility model discloses the concrete embodiment of accessible other differences is implemented or is used, and each item detail in this specification also can be based on different viewpoints and application, does not deviate from the utility model discloses a carry out various modifications and changes under the design. The drawings of the present invention are merely schematic illustrations, and are not drawn to scale, but are described in advance. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.
First embodiment
Referring to fig. 1, a first embodiment of the present invention provides a high efficiency wastewater treatment system 100 for treating a wastewater. The high efficiency wastewater treatment system 100 mainly comprises an adsorption device 20, a control valve 10, a detector 30, an ozone generator 40 and a controller 50. The adsorption device 20 has a water inlet end S1 and a water outlet end S2, a line P1 (first line) is connected to the water inlet end S1 for receiving wastewater, and a line P2 (second line) is connected to the water outlet end S2 for discharging a treated water passing through the adsorption device 20. The adsorption device 20 has a catalyst material 21 therein for adsorbing organic substances in the wastewater. Further, a control valve 10 is disposed on the line P1 for controlling the on/off of the line P1, thereby controlling the adsorption device 20 to start or stop receiving wastewater. The detector 30 is configured to detect a water quality parameter in the treated water. The ozone generator 40 is connected to the adsorption device 20 through a line P3 to provide ozone to the adsorption device 20. The controller 50 is electrically connected to the control valve 10, the detector 30 and the ozone generator 40 to control the operation of the high efficiency wastewater treatment system 100 during actual operation.
In the present embodiment, the detector 30 is disposed on the line P2. The water quality parameter may be an Organic matter-related parameter, such as Total Organic Carbon (TOC) or Chemical Oxygen Demand (COD). However, the present invention is not limited to the above examples.
The high-efficiency wastewater treatment system 100 of the utility model is suitable for treating middle and low-concentration organic wastewater, in particular organic wastewater with chemical oxygen demand less than 1600 mg/L. In use, the organic wastewater can flow into the adsorption device 20 from the water inlet end S1 through the pipeline P1 in a state that the control valve 10 is opened, so that the catalyst material 21 in the adsorption device 20 can adsorb the organic matters in the organic wastewater; the treated water (i.e., the adsorbed organic wastewater) may then flow from the outlet end S2 to line P2 and its water quality parameters are detected by the detection device 30 on line P2. When the measured water quality parameter is higher than the standard value, the controller 50 may close the control valve 10 to stop the water supply through the line P1, and then start the ozone generator 40 to supply ozone to the adsorption device 20 to oxidize and decompose the organic substances on the catalyst material 21. Thus, the organic matter can be effectively decomposed, the adsorption space on the catalyst material 21 can be released again, and the benefit of organic wastewater treatment can be improved.
It is worth mentioning that, the utility model discloses simplify and combine ozone and catalyst technique, let the organic matter adsorb and carry out the concentration on solid catalyst, after solid catalyst adsorbs the saturation, leading-in ozone gas again, through ozone gas and the high oxidability hydroxyl radical that forms with catalyst catalysis, fast with the organic matter oxidative decomposition on the catalyst surface. In this example, the catalyst material 21 may be iron hydroxide (FeOOH) as a substrate and be present in the form of cylindrical particles of 3 to 10 mm, and the catalyst material has a BET specific surface area of 1 to 20 m/g and a specific gravity of 1.1 to 1.5 g/cc. However, the present invention is not limited to the above examples.
The reaction mechanism for activating the catalyst material 21 using ozone is as follows:
H2O2+MXOY(catalyst) → OH. +1/2O2+H++MXOY(catalyst) reaction formula (1)
O3+MXOY(catalyst) → O · + O2+MXOY(catalyst) reaction formula (2)
O·+H2O → 2OH reaction formula (3)
OH + M H (scavenger) → H2O + M reaction formula (9)
Wherein M represents a divalent iron ion or a trivalent iron ion, OH · represents a hydroxyl radical, R represents an organic substance, DMSO represents Dimethyl sulfoxide (Dimethyl sulfoxide), RS represents thiols, ROH represents an alcohol, RN represents an amide, and ROOR1 represents an ester.
As can be seen from the above reaction formula, the iron hydroxide-based catalyst material reacts with ozone to form hydroxyl radicals during the catalytic oxidation reaction in the solid phase, wherein the ozone and organic molecules are bound to the active sites and reaction centers on the surface of the catalyst, so that a high concentration of ozone and organic molecules is present on the surface of the catalyst. Therefore, the method can ensure that free radicals effectively react with organic matters on the surface of the catalyst, so that ozone and hydroxyl radicals thereof are not easy to combine with inorganic salt free radical scavengers in the solution, and the effects of accelerating the oxidation reaction rate and reducing the activation energy of the oxidation reaction are achieved.
Second embodiment
Referring to fig. 2, a second embodiment of the present invention provides a high efficiency wastewater treatment system 100 for treating a wastewater. The high efficiency wastewater treatment system 100 mainly comprises an adsorption device 20, a control valve 10, a detector 30, an ozone generator 40 and a controller 50. The adsorption device 20 has a water inlet end S1 and a water outlet end S2, a line P1 (first line) is connected to the water inlet end S1 for receiving wastewater, and a line P2 (second line) is connected to the water outlet end S2 for discharging a treated water passing through the adsorption device 20. The adsorption device 20 has a catalyst material 21 therein for adsorbing organic substances in the wastewater. Further, a control valve 10 is disposed on the line P1 for controlling the on/off of the line P1, thereby controlling the adsorption device 20 to start or stop receiving wastewater. The detector 30 is configured to detect a water quality parameter in the treated water. The ozone generator 40 is connected to the adsorption device 20 through a line P3 to supply ozone to the adsorption device 20. The controller 50 is electrically connected to the control valve 10, the detector 30 and the ozone generator 40 to control the operation of the high efficiency wastewater treatment system 100 during actual operation.
In this embodiment, the high efficiency wastewater treatment system 100 further comprises a wastewater treatment device 60 connected to the adsorption device 20 via line P1. In practice, the organic wastewater may be first introduced into and stored in the wastewater storage device 60, wherein the organic wastewater may flow into the wastewater storage device 60 through a line P4, and does not flow into the adsorption device 20 through a line P1 until the controller 50 opens the control valve 10, so that the catalyst material 21 in the adsorption device 20 adsorbs the organic substances in the organic wastewater; then, the treated water (i.e., the adsorbed organic wastewater) can flow out from the water outlet end S2 to the pipeline P2, and the water quality parameter thereof is detected by the detecting device 30 on the pipeline P2. When the measured water quality parameter is higher than the standard value, the controller 50 may close the control valve 10 to stop the water supply through the line P1, and then start the ozone generator 40 to supply ozone to the adsorption device 20 to oxidize and decompose the organic substances on the catalyst material 21.
Third embodiment
Referring to fig. 3, a third embodiment of the present invention provides a high efficiency wastewater treatment system 100 for treating a wastewater. The high efficiency wastewater treatment system 100 mainly comprises an adsorption device 20, a control valve 10, a detector 30, an ozone generator 40, a controller 50 and a wastewater storage device 60. The adsorption apparatus 20 has a water inlet end S1 and a water outlet end S2, a line P1 (first line) is connected to the water inlet end S1 for receiving wastewater, and a line P2 (second line) is connected to the water outlet end S2 for discharging the treated water passing through the adsorption apparatus 20. The adsorption device 20 has a catalyst material 21 therein for adsorbing organic substances in the wastewater. Further, a control valve 10 is disposed on the line P1 for controlling the on/off of the line P1, thereby controlling the adsorption device 20 to start or stop receiving wastewater. A detector 30 is provided on line P2 to detect a water quality parameter in the treated water. The ozone generator 40 is connected to the adsorption device 20 through a line P3 to provide ozone to the adsorption device 20. The controller 50 is electrically connected to the control valve 10, the detector 30 and the ozone generator 40 to control the operation of the high efficiency wastewater treatment system 100. The waste water storage device 60 is connected to the adsorption device 20 through a line P1 for storing waste water.
In this embodiment, the high efficiency wastewater treatment system 100 further comprises a pre-treatment device 70 to reduce the burden and blockage of the adsorption device 20 for adsorbing the organic substances in the wastewater; the pretreatment device 70 is connected to the waste water storage device 60 through a line P4 (third line). Accordingly, the organic wastewater to be treated can be first introduced into the pretreatment apparatus 70 through the line P5 for pretreatment. For example, the pretreatment may be a step commonly used for wastewater pretreatment such as trash holding, sand settling, oil removal, filtration, and the like. However, the present invention is not limited to the above examples. The organic wastewater, after being pretreated, flows into the wastewater storage device 60 through the line P4 and is stored therein. When the control valve 10 on the line P1 is opened, the organic wastewater can flow into the adsorption device 20 from the water inlet end S1, so that the catalyst material 21 in the adsorption device 20 can adsorb the organic matters in the organic wastewater; the treated water (i.e., the adsorbed organic wastewater) may then flow from the outlet end S2 to line P2 and its water quality parameters are detected by the detection device 30 on line P2. When the measured water quality parameter is higher than the standard value, the controller 50 may close the control valve 10 to stop the water supply through the line P1, and then start the ozone generator 40 to supply ozone to the adsorption device 20 to oxidize and decompose the organic substances on the catalyst material 21.
Fourth embodiment
Referring to fig. 4, a fourth embodiment of the present invention provides a high efficiency wastewater treatment system 100 for treating a wastewater. The high efficiency wastewater treatment system 100 mainly comprises an adsorption device 20, a control valve 10, a detector 30, an ozone generator 40, a controller 50, a wastewater storage device 60 and a pretreatment device 70. The adsorption apparatus 20 has a water inlet end S1 and a water outlet end S2, wherein the water inlet end S1 is connected to a pipe P1 (first pipe) for receiving wastewater, and the water outlet end S2 is connected to a pipe P2 (second pipe) for discharging the treated water passing through the adsorption apparatus 20. The adsorption device 20 has a catalyst material 21 therein for adsorbing organic substances in the wastewater. Further, a control valve 10 is disposed on the line P1 for controlling the on/off of the line P1, thereby controlling the adsorption device 20 to start or stop receiving wastewater. A detector 30 is provided on line P2 to detect a water quality parameter in the treated water. Ozone generator 40 is connected to adsorption device 20 via line P3 to provide ozone to adsorption device 20. The controller 50 is electrically connected to the control valve 10, the detector 30 and the ozone generator 40 to control the operation of the high efficiency wastewater treatment system 100. The waste water storage device 60 is connected with the adsorption device 20 through a pipeline P1 and is used for storing waste water; the pretreatment device 70 is connected to the wastewater storage device 60 via a line P4 for pretreating wastewater.
In the present embodiment, the detector 30 is disposed at the water outlet end S2 of the adsorption device 20 for measuring the water quality parameter of the treated water. In actual operation, the organic wastewater is stored in the wastewater storage device 60 through the line P4 after being pretreated, and does not flow into the adsorption device 20 from the water inlet end S1 until the control valve 10 on the line P1 is opened, so that the catalyst material 21 in the adsorption device 20 adsorbs the organic substances in the organic wastewater; the treated water (i.e., the adsorbed organic wastewater) may then flow from the outlet end S2 to line P2 and its water quality parameters are detected by the detection device 30 on line P2. When the measured water quality parameter is higher than the standard value, the controller 50 may close the control valve 10 to stop the water supply through the line P1, and then start the ozone generator 40 to supply ozone to the adsorption device 20 to oxidize and decompose the organic substances on the catalyst material 21. However, the present invention is not limited to the above-described embodiments. The treated water may be delivered to a reverse osmosis unit via line P2 to further purify the treated water, as desired.
COD test by ozone treatment unit
Comparative example 1
The organic wastewater with COD of about 66 mg/L is adsorbed by using a catalyst, and organic matters adsorbed by the ozone oxidative decomposition catalyst are provided. In comparative example 1, the unit ozone treatment COD was 20 to 50 g/kg (g/kg).
Comparative example 2
The organic wastewater with COD of 313 mg/L is adsorbed by the catalyst, and the organic matters adsorbed by the ozone oxidation decomposition catalyst are provided. In comparative example 2, the unit ozone treatment COD was 91 to 180 g/kg.
Comparative example 3
The organic wastewater with COD of about 1600 mg/L is adsorbed by the catalyst, and the organic matters adsorbed by the ozone oxidation decomposition catalyst are provided. In comparative example 3, the unit ozone treatment COD was 230-300 g/kg.
Comparative example 4
The organic wastewater with COD about 1600 mg/L is adsorbed by a catalyst, after the catalyst is adsorbed and saturated, the water inlet is stopped, and then the organic matters adsorbed by the ozone decomposition catalyst are provided. In comparative example 4, the unit ozone treatment COD was 1200-1800 g/kg.
TABLE 1 comparison of COD Mass that ozone can be removed per unit mass for different modes of operation
In comparative example 3 in which the catalyst adsorption treatment and the ozonolysis treatment were carried out simultaneously for the same treatment of organic wastewater having a COD of about 1600 mg/L, the unit COD for the ozonolysis treatment was only 230-; in comparison, in comparative example 4, in which the ozone oxidation decomposition treatment is performed after the catalyst adsorption is saturated and the water supply is stopped, the COD per unit ozone treatment can reach 1200 and 1800 g/kg. Therefore, the utility model discloses a high-efficient effluent disposal system 100 sets up the quality of water parameter that detector 30 detected the processing water, when the quality of water parameter is higher than the standard value, makes pipeline P1 stop intaking earlier, makes ozone generator 40 provide ozone to adsorption equipment 20 with the organic matter oxidative decomposition on the catalyst material 21 again.
The utility model discloses combine catalyst absorption and ozone oxidation regeneration technology to decide the opportunity of stopping introduction waste water through the quality of water parameter that lasts the detection processing water, enable the waste water treatment process flow and more simplify, and can optimize waste water treatment process parameter. As shown in the results of Table 1 above, the system of the present invention can treat COD about 1.20-1.80 kg per kg of ozone, and under the condition of treating the organic wastewater with the same concentration, the system of the present invention can only treat COD about 0.02-0.05 kg per kg of ozone of the traditional ozone catalyst system, that is, the high efficiency wastewater treatment system of the present invention can reduce the ozone demand above about 30%, and realize the environmental protection and economic problems of the common organic wastewater with medium and low concentration (COD <1600 mg/L).
The utility model has the advantages of, one of them beneficial effect lies in, the utility model provides a waste water treatment device, it can pass through "adsorption equipment is through disposing in order to receive a waste water through a first pipeline to discharge a processing water through a second pipeline", "the control valve set up in on the first pipeline, be used for control the break-make of pipeline makes adsorption equipment begins or stops to receive waste water", "the detector is through disposing in order to detect in the processing water a relevant water quality parameter of organic matter" and "ozone generator are through disposing in order to provide ozone extremely adsorption equipment's technical characterstic to promote waste water treatment device's efficiency.
The above disclosure is only a preferred and practical embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention, so that all the modifications of the equivalent technology made by the contents of the specification and the drawings of the present invention are included in the scope of the claims of the present invention.
Claims (9)
1. A wastewater treatment system for treating wastewater, the wastewater treatment system comprising:
an adsorption device, wherein a water inlet end of the adsorption device receives the wastewater through a first pipeline, and a water outlet end of the adsorption device discharges treated water through a second pipeline, wherein the adsorption device is provided with a catalyst material for adsorbing organic matters in the wastewater;
the control valve is arranged on the first pipeline and used for controlling the on-off of the pipeline so as to enable the adsorption device to start or stop receiving the wastewater;
a detector configured to detect a water quality parameter associated with the organic matter in the treated water;
an ozone generator configured to provide ozone to the adsorption device; and
a controller electrically connected to the control valve, the detector and the ozone generator.
2. The wastewater treatment system of claim 1, wherein the detector is disposed on the second pipeline.
3. The wastewater treatment system of claim 1, wherein the detector is disposed at the water outlet end of the adsorption device.
4. The wastewater treatment system of claim 1, wherein the water quality parameter is total organic carbon or chemical oxygen demand.
5. The wastewater treatment system of claim 1, further comprising a wastewater storage device for storing the wastewater and connected to the adsorption device via the first line.
6. The wastewater treatment system of claim 5, further comprising a pre-treatment device, wherein the pre-treatment device is a trash holding, sand settling, oil removing, or filtering device, and is connected to the wastewater storage device through a third pipeline.
7. The wastewater treatment system of claim 1, further comprising a reverse osmosis device in communication with the adsorption device via the second line for further purifying the treated water.
8. The wastewater treatment system according to claim 1, wherein the catalyst material has a BET specific surface area of 1 to 20 m/g, and a specific gravity of 1.1 to 1.5 g/cc.
9. The wastewater treatment system of claim 1, wherein the wastewater is an organic wastewater having a chemical oxygen demand of less than 1600 mg/l.
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| CN202023092415.6U CN215208823U (en) | 2020-12-21 | 2020-12-21 | Wastewater treatment system |
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| CN202023092415.6U CN215208823U (en) | 2020-12-21 | 2020-12-21 | Wastewater treatment system |
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