CN214880971U - Wastewater treatment device for hardware vacuum coating industry - Google Patents
Wastewater treatment device for hardware vacuum coating industry Download PDFInfo
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- CN214880971U CN214880971U CN202121241851.7U CN202121241851U CN214880971U CN 214880971 U CN214880971 U CN 214880971U CN 202121241851 U CN202121241851 U CN 202121241851U CN 214880971 U CN214880971 U CN 214880971U
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Abstract
The utility model discloses a wastewater treatment device in hardware vacuum coating industry, which comprises a UV-Fenton system, a biochemical system, a sludge treatment system, a reclaimed water recycling system and an evaporation system; the UV-Fenton system comprises a pH adjusting tank, a first UV-Fenton reaction tank, a second UV-Fenton reaction tank, a pH adjusting coagulation tank and a first sedimentation tank which are sequentially communicated; the biochemical system comprises an anoxic tank, a contact oxidation tank, a second sedimentation tank and a clean water tank which are sequentially communicated; the sludge treatment system comprises a sludge pool, a sludge pump and a chamber type filter press; the reclaimed water recycling system comprises a sand filter tank, a carbon filter tank, an ultrafiltration device, a middle water tank and a reverse osmosis device. The utility model provides a five metals vacuum coating trade effluent treatment plant has reduced the water environmental pollution problem of this trade, has realized waste water branch matter retrieval and utilization and zero release, and the treatment effeciency is high, has solved the difficult problem outside emission of five metals vacuum coating trade waste water and the commission.
Description
Technical Field
The utility model relates to a waste water treatment technical field especially relates to a five metals vacuum coating trade effluent treatment plant.
Background
Vacuum deposition is a surface treatment process in which a thin film is formed on a substrate by sputtering, evaporation, ion plating or the like in a vacuum using a metal such as titanium, gold, graphite, or crystal, a nonmetal, or a gas. Compared with the traditional chemical coating method, the vacuum coating has many advantages: if no pollution is caused to the environment, the method is a green and environment-friendly process, no harm is caused to operators, and the film is firm, good in compactness, strong in corrosion resistance and uniform in film thickness. Before vacuum coating of hardware, pretreatment such as wax removal, oil removal, ultrasonic cleaning and the like is carried out on a substrate (a plated part) so as to ensure the tidiness of the plated part and avoid the defects of pockmark, poor adhesion and the like of a coating, and the common hardware vacuum coating process flow is shown in an attached drawing 3. An oil removal cleaning tank, a wax removal cleaning tank and an ultrasonic pure water tank of the pretreatment process need to be replaced with cleaning water frequently, and then a certain amount of wastewater is generated, while the oil removal cleaning tank and the wax removal cleaning tank are not high in water quality, but the ultrasonic pure water tank has high requirements on water quality and needs to use pure water.
At present, most hardware vacuum coating enterprises do not establish complete water treatment facilities, but dispose the hardware in a scattered industrial wastewater outsourcing mode, when environmental protection policies are tightened or the capacity of the enterprises is increased, the wastewater production amount is larger than the outsourcing disposal amount approved by a pollution discharge license, under the condition, the enterprises need to establish new storage facilities for temporary storage, but the possibility that partial enterprises illegally steal the wastewater is not excluded. In order to solve the problem of wading environmental pollution in the hardware vacuum coating industry, a water treatment process with high treatment efficiency and full resource utilization of wastewater is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a five metals vacuum coating trade effluent treatment plant has realized waste water branch matter retrieval and utilization and zero release, and the treatment effeciency is high, has solved the difficult problem outside emission of five metals vacuum coating trade waste water and the commission.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a wastewater treatment device in hardware vacuum coating industry comprises a UV-Fenton system, a biochemical system, a reclaimed water recycling system and an evaporation system, wherein the biochemical system, the reclaimed water recycling system and the evaporation system are connected through pipelines; the UV-Fenton system comprises a pH adjusting tank, a first UV-Fenton reaction tank, a second UV-Fenton reaction tank, a pH adjusting coagulation tank and a first sedimentation tank which are sequentially communicated, wherein the first sedimentation tank is provided with a first inclined pipe, a first overflow weir and a first sludge discharge hole; the biochemical system comprises an anoxic tank, a contact oxidation tank, a second sedimentation tank and a clean water tank which are sequentially communicated, wherein the second sedimentation tank is provided with a second inclined pipe, a second overflow weir and a second sludge discharge hole; the reclaimed water recycling system comprises a sand filter tank, a carbon filter tank, an ultrafiltration device, a middle water tank and a reverse osmosis device.
Further, the pH adjusting tank is provided with a first online pH meter, the first UV-Fenton reaction tank is provided with a first online ORP meter and a first ultraviolet lamp, the second UV-Fenton reaction tank is provided with a second online ORP meter and a second ultraviolet lamp, and the pH adjusting-back coagulation tank is provided with a second online pH meter.
Further, the contact oxidation pond is provided with a microbial filler and an aeration pipeline.
Further, the clean water tank is provided with a first liquid level meter.
Furthermore, the middle water tank is provided with a second liquid level meter, a conductivity meter and a reuse water pipe, the reuse water pipe is used for discharging oil and clear water tanks and removing wax and clear water tanks, the second liquid level meter is used for preventing the liquid level from being too low or too high, the conductivity meter is used for monitoring the salinity of a water sample in the middle water tank, and the evaporation system is automatically controlled to be started when the salinity is too high.
Furthermore, the sand filter tank, the carbon filter tank, the ultrafiltration device, the intermediate water tank and the reverse osmosis device are sequentially connected, the reverse osmosis device takes water from the intermediate water tank, the treated concentrated water returns to the intermediate water tank, and the produced water is recycled to the ultrasonic pure water tank.
Furthermore, the evaporation system is a low-temperature vacuum evaporator, the evaporation system is connected with the intermediate water tank, the evaporation system takes water from the intermediate water tank, the treated condensate is reused in an oil-removing clear water tank and a wax-removing clear water tank, and the residual liquid is disposed after being collected.
Further, the treatment device also comprises a sludge treatment system, and the sludge treatment system comprises a sludge pool, a sludge pump and a chamber type filter press.
Furthermore, the first sludge discharge hole and the second sludge discharge hole are respectively connected with the sludge tank through sludge discharge pipelines.
The utility model has the advantages that: 1. the adding of the treatment agent is controlled by an online pH meter and an online ORP meter, so that the automatic operation of the water treatment process is realized; 2. according to different requirements of the oil removal clean water tank, the paraffin removal clean water tank and the ultrasonic pure water tank on water quality, the treated water quality is recycled according to quality, the ultrafiltration produced water and the evaporation condensate are recycled for the oil removal cleaning tank and the paraffin removal cleaning tank, and the reverse osmosis device produced water is recycled for the ultrasonic pure water tank; 3. adopt the device provided by the utility model, the treatment effeciency is high, can accomplish the zero release of five metals vacuum coating trade waste water, has solved five metals vacuum coating trade waste water discharge or the difficult problem of outsourcing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a process flow diagram of the wastewater treatment device of the present invention;
FIG. 3 is a flow chart of a hardware vacuum coating process;
in the figure: 1-UV-Fenton system, 2-biochemical system, 3-sludge treatment system, 4-reclaimed water recycling system, 5-evaporation system, 11-pH adjusting tank, 12-first UV-Fenton reaction tank, 13-second UV-Fenton reaction tank, 14-pH adjusting coagulation tank, 15-first sedimentation tank, 21-anoxic tank, 22-contact oxidation tank, 23-second sedimentation tank, 24-clear water tank, 31-sludge tank, 32-sludge pump, 33-box filter press, 41-sand filter tank, 42-carbon filter tank, 43-ultrafiltration device, 44-intermediate water tank, 45-reverse osmosis device, 111-first online pH meter, 121-first online ORP meter, 122-first ultraviolet lamp, 131-second online ORP meter, 132-a second ultraviolet lamp, 141-a second online pH meter, 151-a first inclined tube, 152-a first overflow weir, 153-a first sludge discharge hole, 221-microbial packing, 222-an aeration pipeline, 231-a second inclined tube, 232-a second overflow weir, 233-a second sludge discharge hole, 241-a first liquid level meter, 441-a second liquid level meter, 442-a conductivity meter and 443-a reuse water pipe.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
As shown in fig. 1:
a wastewater treatment device in hardware vacuum coating industry comprises a UV-Fenton system 1, a biochemical system 2, a reclaimed water recycling system 4, an evaporation system 5 and a sludge treatment system 3, wherein the UV-Fenton system 1 is communicated with the biochemical system 2, and the biochemical system 2, the reclaimed water recycling system 4 and the evaporation system 5 are connected through pipelines.
The UV-Fenton system 1 comprises a pH adjusting tank 11, a first UV-Fenton reaction tank 12, a second UV-Fenton reaction tank 13, a pH adjusting coagulation tank 14 and a first sedimentation tank 15 which are sequentially communicated. The first sedimentation tank 15 is provided with an inclined pipe 151, a first overflow weir 152 and a first sludge discharge hole 153; the biochemical system 2 comprises an anoxic tank 21, a contact oxidation tank 22, a second sedimentation tank 23 and a clean water tank 24 which are sequentially communicated, wherein the second sedimentation tank 23 is provided with an inclined pipe 231, a second overflow weir 232 and a second sludge discharge hole 233; the reclaimed water reuse system 4 includes a sand filtration tank 41, a carbon filtration tank 42, an ultrafiltration device 43, an intermediate water tank 44, and a reverse osmosis device 45. Wherein the sand filtration tank 41, the carbon filtration tank 42, the ultrafiltration device 43, the intermediate water tank 44 and the reverse osmosis device 45 are connected in sequence; the evaporation system 5 is a low temperature vacuum evaporator.
The pH adjusting tank 11 is provided with a first online pH meter 111 to realize automatic adding of the acid liquor.
The first UV-Fenton reaction tank 12 is provided with a first online ORP meter 121 and a first ultraviolet lamp 122, and the second UV-Fenton reaction tank 13 is provided with a second online ORP meter 131 and a second ultraviolet lamp 132, so that automatic feeding of hydrogen peroxide and ferrous sulfate is realized.
The pH adjusting-back coagulation tank 14 is provided with a second on-line pH meter 141, and the experimental alkali liquor is automatically added.
The contact oxidation tank 22 is provided with a microbial packing 221 and an aeration pipe 222.
The clean water tank 24 is provided with a first level gauge 241 to prevent a too high or too low liquid level.
The intermediate water tank 44 is provided with a second liquid level meter 441, a conductivity meter 442 and a reuse water pipe 443, the effluent of the reuse water pipe 443 is reused for the paraffin removal clean water tank and the oil removal clean water tank, the second liquid level meter 441 is used for preventing the liquid level from being too low or too high, the conductivity meter 442 is used for monitoring the salinity of the water sample in the intermediate water tank 44, and the evaporation system 5 is automatically controlled to be started when the salinity is too high.
The reverse osmosis device 45 takes water from the intermediate water tank 44, the treated concentrated water is returned to the intermediate water tank 44, and the produced water is reused in the ultrasonic pure water tank.
The evaporation system 5 takes water from the intermediate water tank 44, the treated condensate is reused as an oil-removing clear water tank and a wax-removing clear water tank, and the residual liquid is disposed after being collected.
The treatment device also comprises a sludge treatment system 3, and the sludge treatment system 3 comprises a sludge pool 31, a sludge pump 32 and a chamber filter press 33.
The first sludge discharge hole 153 and the second sludge discharge hole 233 are respectively connected with the sludge tank 31 through sludge discharge pipes.
As shown in fig. 2, the working principle of the present invention is: firstly, wastewater in a raw water collecting tank is introduced into a pH adjusting tank 11 of a UV-Fenton system 1, acid liquor is added into the wastewater under the control of the first online pH meter 111, the wastewater with the adjusted pH value automatically flows into the first UV-Fenton reaction tank 12, adding hydrogen peroxide and ferrous sulfate into the wastewater under the control of a first online ORP meter 121, meanwhile, the first ultraviolet lamp 122 is started, the wastewater flows into the second UV-Fenton reaction tank 13, the principle is the same as that of the first UV-Fenton reaction tank 12, two stages are designed to have enough reaction time, the wastewater treated by the UV-Fenton reaction tank flows into the pH value adjusting coagulation tank 14, adding alkali liquor into the wastewater under the control of a second online pH meter 141, adding a flocculating agent for flocculation, enabling the wastewater to flow into a first sedimentation tank 15 for sludge-water separation, discharging sludge into a sludge tank 31 through a first sludge discharge hole 153, and enabling clear liquid to enter a biochemical system 2 through a first overflow weir 152; the water discharged from the UV-Fenton system 1 directly enters an anoxic tank 21, then automatically flows into a contact oxidation tank 22, and is subjected to aerobic reaction under aeration, the water discharged from the contact oxidation tank 22 automatically flows into a second sedimentation tank 23, the residual sludge is discharged into a sludge tank 31 through a second sludge discharge hole 233, and the clear liquid enters a clear water tank 24 through a second overflow weir 232; thirdly, the wastewater treated by UV-Fenton and biochemical treatment is collected in a clean water tank 24, a first liquid level meter 241 is arranged in the clean water tank 24, when the liquid level is higher than a set high liquid level, a reclaimed water recycling system 4 is opened, when the liquid level is lower than a set low liquid level, the reclaimed water recycling system 4 is closed, when the reclaimed water recycling system 4 is opened, the wastewater in the clean water tank 24 sequentially passes through a sand filter tank 41, a carbon filter tank 42 and an ultrafiltration device 43, suspended matters, soluble organic matters, microorganisms and the like of the wastewater are further removed through filtering and adsorption, effluent water subjected to sand filtering, carbon filtering and ultrafiltration enters an intermediate water tank 44, the intermediate water tank 44 is designed with a conductivity meter 442 and a second liquid level meter 441, the second liquid level meter 441 controls the opening and closing of an oil removal clean water tank water pump, a paraffin removal clean water tank water pump, a reverse osmosis device 45 high-pressure pump and an evaporation system 5 water inlet pump, and the effluent water is recycled for an ultrasonic pure water tank, the concentrated water flows back into the intermediate water tank 44, the conductivity meter 442 mainly monitors the salinity of the intermediate water tank 44, and the evaporation system 5 is automatically started when the liquid level in the intermediate water tank 44 is enough and the salinity is too high; and finally, when the salt content in the wastewater is too high, evaporation desalting treatment is carried out through the evaporation system 5, the condensate is recycled in the oil-removing clear water tank and the paraffin-removing clear water tank, and the residual liquid is discharged and then disposed. The sludge of the UV-Fenton system 1 and the sludge of the biochemical system 2 are collected in a sludge tank 31, and then enter a box type filter press 33 through a sludge pump 32 for dehydration, the sludge is subjected to outsourcing treatment, and the filtrate returns to a raw water collecting tank.
The utility model provides a wastewater treatment device, the treatment effeciency is high, can accomplish the zero release of five metals vacuum coating trade waste water, has solved five metals vacuum coating trade waste water discharge or the difficult problem of outsourcing.
It should be understood that the above description is only exemplary of the present invention and is not intended to limit the present invention, and that any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a five metals vacuum coating trade effluent treatment plant which characterized in that: the system comprises a UV-Fenton system (1), a biochemical system (2), a reclaimed water recycling system (4) and an evaporation system (5), wherein the biochemical system (2), the reclaimed water recycling system (4) and the evaporation system (5) are connected through pipelines; the UV-Fenton system (1) comprises a pH adjusting tank (11), a first UV-Fenton reaction tank (12), a second UV-Fenton reaction tank (13), a pH adjusting coagulation tank (14) and a first sedimentation tank (15), which are sequentially communicated, wherein the first sedimentation tank (15) is provided with a first inclined pipe (151), a first overflow weir (152) and a first sludge discharge hole (153); the biochemical system (2) comprises an anoxic tank (21), a contact oxidation tank (22), a second sedimentation tank (23) and a clean water tank (24) which are sequentially communicated, wherein the second sedimentation tank (23) is provided with a second inclined pipe (231), a second overflow weir (232) and a second sludge discharge hole (233); the reclaimed water recycling system (4) comprises a sand filter tank (41), a carbon filter tank (42), an ultrafiltration device (43), a middle water tank (44) and a reverse osmosis device (45).
2. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the pH adjusting tank (11) is provided with a first online pH meter (111), the first UV-Fenton reaction tank (12) is provided with a first online pH meter (121) and a first ultraviolet lamp (122), the second UV-Fenton reaction tank (13) is provided with a second online pH meter (131) and a second ultraviolet lamp (132), and the pH adjusting coagulation tank (14) is provided with a second online pH meter (141).
3. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the contact oxidation tank (22) is provided with a microbial filler (221) and an aeration pipeline (222).
4. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the clean water tank (24) is provided with a first liquid level meter (241).
5. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the intermediate water tank (44) is provided with a second liquid level meter (441), a conductivity meter (442) and a reuse water pipe (443).
6. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the sand filtering tank (41), the carbon filtering tank (42), the ultrafiltration device (43), the middle water tank (44) and the reverse osmosis device (45) are connected in sequence.
7. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the evaporation system (5) is a low-temperature vacuum evaporator, and the evaporation system (5) is connected with the intermediate water tank (44).
8. The wastewater treatment device for the hardware vacuum coating industry according to claim 1, which is characterized in that: the treatment device also comprises a sludge treatment system (3), wherein the sludge treatment system (3) comprises a sludge pool (31), a sludge pump (32) and a box-type filter press (33).
9. The wastewater treatment device for the hardware vacuum coating industry according to claim 8, wherein the wastewater treatment device comprises: the first sludge discharge hole (153) and the second sludge discharge hole (233) are respectively connected with the sludge tank (31) through sludge discharge pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121241851.7U CN214880971U (en) | 2021-06-03 | 2021-06-03 | Wastewater treatment device for hardware vacuum coating industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121241851.7U CN214880971U (en) | 2021-06-03 | 2021-06-03 | Wastewater treatment device for hardware vacuum coating industry |
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| CN214880971U true CN214880971U (en) | 2021-11-26 |
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| CN202121241851.7U Active CN214880971U (en) | 2021-06-03 | 2021-06-03 | Wastewater treatment device for hardware vacuum coating industry |
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