CN110498546A - The sewage treatment circulatory system and its method - Google Patents
The sewage treatment circulatory system and its method Download PDFInfo
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- CN110498546A CN110498546A CN201910601291.2A CN201910601291A CN110498546A CN 110498546 A CN110498546 A CN 110498546A CN 201910601291 A CN201910601291 A CN 201910601291A CN 110498546 A CN110498546 A CN 110498546A
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- sewage
- cesspool
- pump
- nanofiltration
- collecting
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- 239000010865 sewage Substances 0.000 title claims abstract description 211
- 238000000034 method Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000001728 nano-filtration Methods 0.000 claims abstract description 118
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 76
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 64
- 238000001471 micro-filtration Methods 0.000 claims abstract description 44
- 238000004140 cleaning Methods 0.000 claims abstract description 37
- 230000003487 anti-permeability effect Effects 0.000 claims abstract description 19
- 239000008213 purified water Substances 0.000 claims abstract description 16
- 238000011001 backwashing Methods 0.000 claims abstract description 15
- 244000005700 microbiome Species 0.000 claims abstract description 5
- 239000010419 fine particle Substances 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 23
- 229920000742 Cotton Polymers 0.000 claims description 17
- 230000001954 sterilising effect Effects 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 238000000746 purification Methods 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 10
- 239000013618 particulate matter Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 238000007616 round robin method Methods 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- YASYEJJMZJALEJ-UHFFFAOYSA-N Citric acid monohydrate Chemical compound O.OC(=O)CC(O)(C(O)=O)CC(O)=O YASYEJJMZJALEJ-UHFFFAOYSA-N 0.000 claims description 3
- 206010063036 Spinal cord oedema Diseases 0.000 claims description 3
- 230000001351 cycling effect Effects 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 244000248349 Citrus limon Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of sewage treatment circulatory system and its methods, including wash pool platform, sewage collecting pool, the first collecting pump, the first cesspool, the second cesspool, the second collecting pump, the first filter press, third collecting pump, third cesspool, the 4th collecting pump, the 5th collecting pump, the second filter press, the 4th cesspool, ultrafiltrate pump, ultrafiltration apparatus, micro-filtration, ultrafiltration pond, nanofiltration pump, nanofiltration device, nanofiltration pond, anti-permeability pump, reverse osmosis unit, clear water reserviors and backwashing pump；Wash pool platform is for placing and cleaning object to be cleaned, the external running water pipe of wash pool platform；Sewage collecting pool is connect with the wash pool platform, for receiving and keeping in the sewage of wash pool platform outflow；Ultrafiltration apparatus be used for by sewage bulky grain and color be filtered and decolourize；Nanofiltration device with to sewage microorganism and coloration be removed；Reverse osmosis unit is used to remove through the fine particle in nanofiltration pond conveying water；Sewage treatment can be become the purified water that can be recycled by the present invention.
Description
Technical field
The present invention relates to field of sewage treatment equipment, and in particular to a kind of sewage treatment round-robin method and its system.
Background technique
Large amount of sewage can be generated after often generating a large amount of trade effluents or workpiece cleaning in existing industrial production,
And these trade effluents often contain a large amount of greasy dirt and other sundries, if these sewage are directly arranged without processing
Put, then can environment to surrounding and water source cause serious pollution, or even jeopardize the existence health of neighbouring resident, meanwhile, companion
With the gradually reinforcement of people's environmental consciousness, people increasingly pay attention to the emission problem of these sewage, also mention to the processing of sewage
Higher requirement is gone out.
Summary of the invention
That the technical problem to be solved in the present invention is to provide a kind of structures is simple, waste water can be recycled after treatment
Sewage treatment round-robin method and its system.
In order to achieve the above objectives, technical scheme is as follows:
The sewage treatment circulatory system, the sewage treatment circulatory system include:
Wash pool platform, the wash pool platform are located above sewage collecting pool, wash for placing and cleaning workpiece to be cleaned, wash pool platform
The external running water pipe of pond platform and/or purification return pipe；
Sewage collecting pool, the sewage collecting pool are connect with the wash pool platform, dirty for receiving the sewage of wash pool platform transfer
Liquid-level switch is equipped in water collecting pit, whether the sewage that liquid-level switch is used to detect in sewage collecting pool has expired, and by sewage
Full signal is sent to the first collecting pump；
One end of first collecting pump, the first collecting pump is connect by pipeline with sewage collecting pool, and the first collecting pump is used for will
Sewage in sewage collecting pool transfers to the first cesspool or the second cesspool；
The other end of first cesspool, the first collecting pump is connect by pipeline with the first cesspool, is set in the first cesspool
There are liquid-level switch and agitating device；
The other end of second cesspool, the first collecting pump is connect by pipeline with the second cesspool, is set in the second cesspool
There are liquid-level switch and agitating device；
One end of second collecting pump, the second collecting pump is connect with the first cesspool and the second cesspool respectively by pipeline,
Second collecting pump is used to the sewage in the first cesspool or the second cesspool transferring to the first filter press；
The other end of first filter press, the second collecting pump is connect by pipeline with the first filter press, and the first filter press is used for
By in sewage fraction solids substance and sewage separation；
One end of third collecting pump, third collecting pump is connect with the first cesspool and the second cesspool respectively by pipeline,
Second collecting pump is used to the sewage in the first cesspool and the second cesspool transferring to third cesspool；
The other end of third cesspool and agitating device, third collecting pump is connect by pipeline with third cesspool；
4th collecting pump, by pipeline and the first filter press, the other end passes through pipeline and third for one end of the 4th collecting pump
Cesspool connection, the 4th collecting pump are used to the sewage in the first filter press transferring to third cesspool；
One end of 5th collecting pump, the 5th collecting pump is connect by pipeline with third cesspool, and the 5th collecting pump is used for will
Sewage in third cesspool transfers to the second filter press；
The other end of second filter press, the 5th collecting pump is connect by pipeline with the second filter press, and the second filter press is used for
By the part coarse particulate matter and sewage separation in sewage；
One end of 4th cesspool, the 4th cesspool is connect by pipeline with the second filter press, and the 4th cesspool is for connecing
It receives the second filter press and transfers the sewage of coming；
One end of ultrafiltrate pump, ultrafiltrate pump is connect by pipeline with the 4th cesspool, and ultrafiltrate pump is used for will be in the 4th cesspool
Sewage transfer to ultrafiltration apparatus；
The other end of ultrafiltration apparatus, ultrafiltrate pump is connect by pipeline with ultrafiltration apparatus, and ultrafiltration apparatus is used for will be in sewage
Bulky grain and color are filtered and decolourize；
One end of micro-filtration, micro-filtration is connect by pipeline with ultrafiltration apparatus, and micro-filtration is used for will be in sewage
Bulky grain and color are filtered and decolourize, DF film built in micro-filtration；
The one end in ultrafiltration pond, ultrafiltration pond is connect by pipeline with micro-filtration；
One end of nanofiltration pump, nanofiltration pump is connect by pipeline with ultrafiltration pond, and nanofiltration pump is for turning the sewage in ultrafiltration pond
It send to nanofiltration device；
Nanofiltration device, one end of nanofiltration device are connected by pipeline and nanofiltration pump, and nanofiltration device is with the microorganism to sewage
It is removed with coloration；Nanofiltration membrane built in nanofiltration device；
The one end in nanofiltration pond, nanofiltration pond is connect by pipeline with nanofiltration device；
One end of anti-permeability pump, anti-permeability pump is connect by pipeline with nanofiltration pond, and anti-permeability pump is used for will be in nanofiltration pond
Sewage transfers to reverse osmosis unit；
One end of reverse osmosis unit, reverse osmosis unit is connect by pipeline with anti-permeability pump, and reverse osmosis unit is for removing
Through the fine particle in nanofiltration pond conveying water；Reverse osmosis (RO) film built in reverse osmosis unit；
One end of clear water reserviors, clear water reserviors is connect by pipeline with reverse osmosis unit, the external purification return pipe of clear water reserviors, purification
Return pipe connects clear water reserviors and wash pool platform, and purification return pipe is equipped with back water pump, and back water pump is by purifying return pipe for clear water reserviors
Interior purified water transfers to wash pool platform, for used in cleaning；
One end of backwashing pump, backwashing pump is separately connected by pipeline and ultrafiltration pond, nanofiltration pond, clear water reserviors, the other end
It is connect by pipeline with micro-filtration, backwashing pump is used to the liquid of ultrafiltration pond, nanofiltration pond, clear water reserviors transferring to micro-filtration
Micro-filtration is cleaned.
In one embodiment of the invention, the first PP cotton layer, carbon-coating and the 2nd PP cotton layer built in ultrafiltration apparatus.
In one embodiment of the invention, sewage disposal system further includes sterilizing unit, and sterilizing unit is arranged in ultrafiltration
Between pond and micro-filtration, sterilizing unit is ultraviolet lamp.
In one embodiment of the invention, sewage disposal system further includes concentrate recirculation pipe, one end of concentrate recirculation pipe
It is connect respectively with nanofiltration device and reverse osmosis unit, the other end is connect with the 4th cesspool.
Sewage treatment round-robin method, sewage treatment round-robin method include the following steps:
(1) sewage collecting
The workpiece that will be cleaned is placed on wash pool platform, the preferential purified water cleaning workpiece using after sewage treatment, when net
When changing water deficiency, tap water cleaning workpiece can be used, the sewage generated after cleaning workpiece is flowed into sewage collecting through wash pool platform
It pond will by the first collecting pump after the liquid-level switch triggering sewage collecting pit level of sewage collecting pool full electric potential signal
Sewage is transferred in the first cesspool or the second cesspool；
(2) dosing precipitates
When the electric potential signal that the liquid-level switch triggering sewage collecting pit level in the first cesspool or the second cesspool is full
Afterwards, it is then stirred to the hydrochloric acid that cesspool implantation concentration is 30%-33% has been expired respectively, makes its PH 4, it is then natural
Precipitating 1 hour, and it is subject to pond neutrality line, third collecting pump transfers half pond sewage on the first cesspool or the second cesspool
Into third cesspool, the remaining dirty slurry of lower half pond is transferred in the first filter press by the second collecting pump；
(3) filters pressings
First filter press works, and dirt slurry is separated into sewage and not filtrable solid matter, the sewage isolated
It is dumped in third cesspool by the 4th collecting pump, not filtrable residual solids substance, then packs recycling after taking out；
(4) alkaline cleaning
After sewage in third cesspool is stored to certain water level, the sewage in third cesspool is carried out to add alkali, neutralizes water
The pH value of matter, it is agitated uniformly after, PH 8.5；
(5) secondary filters pressing
Sewage after alkaline cleaning is dumped in the second filter press by the 5th collecting pump, the second filter press is pressed again
It filters, the coarse particulate matter in filter sewage, the sewage being press-filtered out is transferred in the 4th cesspool, not filtrable coarseparticulate
Matter packs recycling after then taking out；
(6) hyperfiltration treatment
When the water level in the 4th cesspool reaches certain water level, ultrafiltrate pump transfers to the sewage in the 4th cesspool super
Filter device, Jing Yici PP cotton layer, carbon-coating, secondary PP layers of progress by-pass filtration, in sewage bulky grain and color be filtered
And decoloration；
(7) micro-filtration is handled
It is further filtered by the sewage of ultrafiltration apparatus by the DF film in micro-filtration, the water of filtering shines through ultraviolet lamp again
Ultrafiltration pond is flowed into after injecting row sewage sterilization processing；
(8) nanofiltration is handled
After the water level in ultrafiltration pond reaches certain height of water level, the sewage in ultrafiltration pond is transferred to nanofiltration device by nanofiltration pump,
Nanofiltration device work, sewage carry out secondary filtration through the nanofiltration membrane in nanofiltration device, and the sewage after nanofiltration membrane is temporarily stored in
In nanofiltration pond, the impurity of nanofiltration membrane cannot pass through, through concentrate recirculation pipe, flow back into the 4th cesspool, repeat step (6) extremely
(8) until all substances can pass through nanofiltration membrane in sewage；
(9) reverse osmosis treatment
After the water level in nanofiltration pond reaches certain height of water level, the sewage in nanofiltration pond is transferred to reverse osmosis dress by anti-permeability pump
It sets, reverse osmosis unit work, sewage carries out three-stage filtration through the reverse osmosis (RO) film in reverse osmosis unit, and sewage is through reverse osmosis (RO) film
After filtering, water quality is detected through conductivity, has been the water quality for meeting purified water requirement, and purified water at this time has been clear water, temporarily
There are in clear water reserviors, wait entering cycling use of water process (entering wash pool platform), i.e. progress workpiece cleaning by purifying return pipe；No
It can be flowed back into the 4th cesspool by the impurity of reverse osmosis (RO) film through concentrate recirculation pipe, repeat step (6) to (9) until dirty
All substances can pass through reverse osmosis (RO) film in water；
(10) it backwashes
After hyperfiltration treatment 30 minutes, backwashing pump starting, by the Spinal Cord Oedema in ultrafiltration pond, nanofiltration pond, clear water reserviors to micro-filtration
Device backwashes the DF film in micro-filtration；The time of backwash is 30 seconds, and fixed time cleaning；Fixed time cleaning is specific
For ultrafiltration and the cycle operation according to set time that recoils, after ultrafiltration in 30 minutes, stops ultrafiltration and start to recoil, recoil stops after 30 seconds
Only, start ultrafiltration, such cycle operation.
In one embodiment of the invention, in nanofiltration processing and reverse osmosis treatment, 5% lemon can periodically be added in water
Sour water carries out softening cleaning treatment to nanofiltration membrane and reverse osmosis (RO) film.
Through the above technical solutions, the beneficial effects of the present invention are:
The present invention passes sequentially through the first filter press, the second filter press, ultrafiltration apparatus, micro-filtration, nanofiltration device and anti-
Permeability apparatus is filtered processing to sewage, so that finally obtained water is the clear water for meeting purified water requirement, can be used as work
Part water for cleaning is recycled；Other solid impurity is removed pack recycling, reduces the pollution of environment；Furthermore it uses
Backwashing pump backwashes micro-filtration, washes away the unfiltered attachment impurity of DF film surface in micro-filtration, improves micro-filtration
The filter effect and service life of device reduce the time for shutting down replacement DF film loss, improve working efficiency；In addition, in nanofiltration
It in processing and reverse osmosis treatment, can periodically add 5% citric acid water in water, nanofiltration membrane and reverse osmosis (RO) film soften clear
Processing is washed, to ensure the filtering feature and filter effect of nanofiltration membrane and reverse osmosis (RO) film, and extends nanofiltration membrane and reverse osmosis (RO) film
Using the time, the time for shutting down replacement nanofiltration membrane and the loss of reverse osmosis (RO) film is reduced, working efficiency is improved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is present system structure chart；
Number and corresponding component title represented by letter in figure:
10, wash pool platform 11, running water pipe 12, purification return pipe 20, sewage collecting pool 30, the first collecting pump 40, the
One cesspool 50, the second cesspool 60, the second collecting pump 70, the first filter press 80, third collecting pump 90, third sewage
Pond 100, the 4th collecting pump 110, the 5th collecting pump 120, the second filter press 130, the 4th cesspool 140, ultrafiltrate pump
150, ultrafiltration apparatus 151, the first PP cotton layer 152, carbon-coating 153, the 2nd PP cotton layer 160, micro-filtration 170, ultrafiltration pond
180, nanofiltration pumps 190, nanofiltration device 200, nanofiltration pond 210, anti-permeability pump 220, reverse osmosis unit 230, clear water reserviors
240, backwashing pump 280, sterilizing unit 290, concentrate recirculation pipe 300, back water pump.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Shown in Figure 1, the invention discloses the sewage treatment circulatory system, the sewage treatment circulatory system includes wash pool platform
10, sewage collecting pool 20, the first collecting pump 30, the first cesspool 40, the second cesspool 50, the second collecting pump 60, the first filters pressing
Machine 70, third collecting pump 80, third cesspool 90, the 4th collecting pump 100, the 5th collecting pump 110, the second filter press the 120, the 4th
Cesspool 130, ultrafiltrate pump 140, ultrafiltration apparatus 150, micro-filtration 160, ultrafiltration pond 170, nanofiltration pump 180, nanofiltration device 190,
Nanofiltration pond 200, anti-permeability pump 210, reverse osmosis unit 220, clear water reserviors 230 and backwashing pump 240.
Wash pool platform 10 is for placing and cleaning workpiece to be cleaned, and wash pool platform 10 is located at 20 top of sewage collecting pool, convenient for dirt
Water automatically flows into sewage collecting pool 20, the external running water pipe 11 of wash pool platform 10 and purification return pipe 12, running water pipe 11 and net
Change return pipe 12 to connect according to actual needs, is not added and repeats herein.
Sewage collecting pool 20 is connect with the wash pool platform 10, for receiving and keeping in the sewage of the transfer of wash pool platform 10, sewage
It is equipped in collecting pit 20 liquid-level switch (being drawn on figure), whether liquid-level switch is used to detect the sewage in sewage collecting pool 20
It is full, and sewage has been expired into signal and has been sent to the first collecting pump 30.
One end of first collecting pump 30 is connect by pipeline with sewage collecting pool 20, and the first collecting pump 30 is for receiving sewage
Sewage in collection pond 20 transfers to the first cesspool 40 or the second cesspool 50.
The other end of first collecting pump 30 is connect by pipeline with the first cesspool 40, is equipped with liquid level in the first cesspool 40
Switch and agitating device, liquid-level switch is for detecting whether sewage in the first cesspool 40 is collected completely；First collecting pump 30
The other end is connect by pipeline with the second cesspool 50, is equipped with liquid-level switch and agitating device, liquid level in the second cesspool 50
Switch is for detecting whether sewage in the second cesspool 50 is collected completely；Above-mentioned two agitating device is used to be stirred sewage,
Agitating device is existing agitating device, the structure of agitating device and principle is not described herein.
One end of second collecting pump 60 is connect with the first cesspool 40 and the second cesspool 50 respectively by pipeline, and second receives
Collection pump 60 is for transferring to the first filter press 70 for the sewage in the first cesspool 40 or the second cesspool 50.
The other end of second collecting pump 60 is connect by pipeline with the first filter press 70, and the first filter press 70 is used for sewage
In fraction solids substance and sewage separation.
One end of third collecting pump 80 is connect with the first cesspool 40 and/or the second cesspool 50 respectively by pipeline, the
Three collecting pumps 80 are used to the sewage in the first cesspool 40 and/or the second cesspool 80 transferring to third cesspool 90.
The other end of third collecting pump 80 is connect by pipeline with third cesspool 90；One end of 4th collecting pump 100 is logical
Piping and the first filter press 70, the other end are connect by pipeline with third cesspool 90, and the 4th collecting pump 100 is used for first
Sewage in filter press 70 transfers to third cesspool 90.
One end of 5th collecting pump 110 is connect by pipeline with third cesspool 90, and the 5th collecting pump 110 is used for third
Sewage in cesspool 90 transfers to the second filter press 120；The other end of 5th collecting pump 110 passes through pipeline and the second filter press
120 connections, the second filter press 120 are used for the part coarse particulate matter and sewage separation in sewage.
One end of 4th cesspool 130 is connect by pipeline with the second filter press 120, and the 4th cesspool 130 is for receiving
Second filter press 120 transfers the sewage of coming；One end of ultrafiltrate pump 140 is connect by pipeline with the 4th cesspool 130, ultrafiltrate pump
140 for transferring to ultrafiltration apparatus 150 for the sewage in the 4th cesspool 130；The other end of ultrafiltrate pump 140 is by pipeline and surpasses
Device 150 is filtered to connect, ultrafiltration apparatus 150 be used for by sewage bulky grain and color be filtered and decolourize, ultrafiltration apparatus 150
Built-in first PP cotton layer 151, carbon-coating 152 and the 2nd PP cotton layer 153, the first PP cotton layer 151, carbon-coating 152 and the 2nd PP cotton
Layer 153 is set gradually from left to right, and the first PP cotton layer 151, carbon-coating 152 and the 2nd PP cotton layer 153 are after service life reaches
It can replace at any time.
One end of micro-filtration 160 is connect by pipeline with ultrafiltration apparatus 150, and micro-filtration 160 is used for will be in sewage
Bulky grain and color are filtered and decolourize, DF film built in micro-filtration 160；The one end in ultrafiltration pond 170 passes through pipeline and micro-filtration
Device 160 connects；One end of nanofiltration pump 180 is connect by pipeline with ultrafiltration pond 170, and nanofiltration pump 180 is used for will be in ultrafiltration pond 170
Sewage transfer to nanofiltration device 190；One end of nanofiltration device 190 is connect by pipeline with nanofiltration pump 180, nanofiltration device 190
With to sewage microorganism and coloration be removed；Nanofiltration membrane built in nanofiltration device 190；The one end in nanofiltration pond 200 passes through pipeline
It is connect with nanofiltration device 190.
One end of anti-permeability pump 210 is connect by pipeline with nanofiltration pond 200, and anti-permeability pump 210 is used for will be in nanofiltration pond 200
Sewage transfer to reverse osmosis unit 220；One end of reverse osmosis unit 220 is connect by pipeline with anti-permeability pump 210, reverse osmosis
Device 220 is used to remove the fine particle conveyed in water through nanofiltration pond 200；Reverse osmosis (RO) film built in reverse osmosis unit 220；Clearly
The one end in pond 230 is connect by pipeline with reverse osmosis unit 220, the external purification return pipe 12 of clear water reserviors 230, purifies return pipe
12 connection clear water reserviors 230 and wash pool platform 10, purification return pipe 12 are equipped with back water pump 300, and back water pump 300 passes through purification return pipe
12 for transferring to wash pool platform 10 for the purified water in clear water reserviors 230；One end of backwashing pump 240 passes through pipeline and ultrafiltration pond
170, nanofiltration pond 200, clear water reserviors 230 are separately connected, and the other end is connect by pipeline with micro-filtration 160, and backwashing pump 240 is used
It transfers to micro-filtration 160 in by the liquid of ultrafiltration pond 170, nanofiltration pond 200, clear water reserviors 230 micro-filtration is cleaned.
Sewage disposal system further includes sterilizing unit 280, and sterilizing unit 280 is arranged in ultrafiltration pond 170 and micro-filtration 160
Between, sterilizing unit 280 is ultraviolet lamp.
Sewage disposal system further includes concentrate recirculation pipe 290, one end of concentrate recirculation pipe 290 respectively with nanofiltration device 190
It is connected with reverse osmosis unit 220, the other end is connect with the 4th cesspool 130.
Sewage treatment round-robin method, sewage treatment round-robin method include the following steps:
(1) sewage collecting
The workpiece that will be cleaned is placed on wash pool platform 10, the preferential purified water cleaning workpiece using after sewage treatment, when
When purified water deficiency, tap water cleaning workpiece can be used, the sewage generated after cleaning workpiece is flowed into sewage through wash pool platform 10
Collecting pit 20 passes through first after the liquid-level switch triggering sewage collecting pit level of sewage collecting pool 20 full electric potential signal
Sewage is transferred in the first cesspool 40 and the second cesspool 50 by collecting pump 30；Specifically, the first collecting pump 30 is first by first
Cesspool 40 fills sewage, then starts to transfer sewage to the second cesspool 50；And salt is added in the first cesspool 40 simultaneously
Hydrochloric acid is also added when the second cesspool 50 fills sewage in acid.
(2) dosing precipitates
When the current potential that the liquid-level switch triggering sewage collecting pit level in the first cesspool 40 or the second cesspool 50 is full
After signal, it is injected separately into the hydrochloric acid that concentration is 30%-33%, since hydrochloric acid belongs to industrial management and control product, the hydrochloric acid of 30%-34%
Belong to the common hydrochloric acid of industry, is easy buying, it is at low cost；Then it is stirred, until making its PH 4, PH facilitates subsequent plus alkali for 4
In when processing and pH value, sewage carries out natural sedimentation at this time so that the pulp-water in cesspool can initial gross separation, then sink naturally
It forms sediment 1 hour, 1 hour natural sedimentation effect is best, can be clear that layering；And it is subject to pond neutrality line, third is received
Half pond sewage on first cesspool 40 and/or the second cesspool 50 is transferred in third cesspool 90 by collection pump 80, more than lower half pond
Under dirty slurry be transferred in the first filter press 70 by the second collecting pump 60.
(3) filters pressings
First filter press 70 works, and dirt slurry is separated into sewage and not filtrable solid matter, the dirt isolated
Water is dumped in third cesspool 90 by the 4th collecting pump 100, not filtrable residual solids substance, then is packed back after taking out
It receives；
(4) alkaline cleaning
After sewage in third cesspool 90 is stored to certain water level, certain water level is defined according to caustic dosage, herein not
Specific water level is defined, can guarantee so every time plus the quantity of alkali is consistent substantially, facilitate management, it can also be to avoid
Multiple alkaline cleaning avoids PH more times neutralized measurements；Sewage in third cesspool 90 is carried out to add alkali, neutralizes the PH of water quality
Value, it is agitated uniformly after, PH 8.5；Adding alkali is exactly the pH value in order to neutralize the sewage of acid adding, and the amount of alkali is added not do herein
It limits, as long as can make pH value 8.5, PH 8.5 be to belong to weakly alkaline solution, can be grown to avoid microorganism；
(5) secondary filters pressing
Sewage after alkaline cleaning is dumped in the second filter press 120 by the 5th collecting pump 110, the second filter press
120 carry out filters pressing again, the coarse particulate matter in filter sewage, and the sewage being press-filtered out is transferred in the 4th cesspool 130, cannot mistake
The coarse particulate matter of filter packs recycling after then taking out；
(6) hyperfiltration treatment
When the water level in the 4th cesspool 130 reaches certain water level, certain water level is the position of the ultrafiltration pump startup of setting
Switch position is set, be may be set according to actual conditions, be not added and repeat herein, ultrafiltrate pump 140 is by the sewage in the 4th cesspool 130
Ultrafiltration apparatus 150 is transferred to, Jing Yici PP cotton layer 151, carbon-coating 152, secondary PP layer 153 carry out by-pass filtration, in sewage
Bulky grain and color are filtered and decolourize；
(7) micro-filtration is handled
It is further filtered by the sewage of ultrafiltration apparatus 150 by the DF film in micro-filtration 160, more than micron diameter
Particle cannot flow into ultrafiltration pond after sterilizing unit 280 irradiates progress sewage sterilization processing again by DF film, the water of filtering
170, sterilizing unit 280 is using ultraviolet lamp, it can also use other sterilizing units certainly, is not added and repeats herein；
(8) nanofiltration is handled
After the water level in ultrafiltration pond 170 reaches certain height of water level, certain water level is that the position of the nanofiltration pump startup of setting is opened
Off-position may be set according to actual conditions, and is not added and repeats herein, and nanofiltration pump 180, which transfers to the sewage in ultrafiltration pond 170, to be received
Device 190 is filtered, nanofiltration device 190 works, and sewage carries out secondary filtration through the nanofiltration membrane in nanofiltration device 190, through nanofiltration membrane mistake
Sewage after filter is temporarily stored in nanofiltration pond 200, cannot pass through the impurity of nanofiltration membrane, through concentrate recirculation pipe 290, flows back into the 4th dirt
In pond 130, step (6) to (8) are repeated until all substances can pass through nanofiltration membrane in sewage；It herein can also be to nanofiltration pond
Sewage in 200 carries out sterilization operation；
(9) reverse osmosis treatment
After the water level in nanofiltration pond 200 reaches certain height of water level, certain water level is the position of the anti-permeability pump starting of setting
Position is switched, be may be set according to actual conditions, be not added and repeat herein, anti-permeability pump 210 transfers the sewage in nanofiltration pond 200
To reverse osmosis unit 220, reverse osmosis unit 220 works, and sewage carries out three-level mistake through the reverse osmosis (RO) film in reverse osmosis unit 220
Filter, after the filtering of reverse osmosis (RO) film, water quality detects sewage through conductivity, has been the water quality for meeting purified water requirement, at this time
Purified water has been clear water, is temporarily stored in clear water reserviors 230, waits and enters (the entrance of cycling use of water process by purification return pipe 12
Wash pool platform 10), i.e. progress workpiece cleaning；The impurity that cannot pass through reverse osmosis (RO) film flows back into the 4th through concentrate recirculation pipe 290
In cesspool 130, step (6) to (9) are repeated until all substances can pass through reverse osmosis (RO) film in sewage；
(10) it backwashes
After hyperfiltration treatment 30 minutes, 30 minutes ultrafiltration effects be it is best, more than 30 minutes, the first PP cotton layer, carbon-coating
And the 2nd PP cotton layer surface accumulation cannot be too many by the particulate matter of filtering, influence filter effect；Backwashing pump 240 opens
It is dynamic, by the Spinal Cord Oedema in ultrafiltration pond 170, nanofiltration pond 200, clear water reserviors 230 to micro-filtration 160, to the DF in micro-filtration 160
Film is backwashed, and the unfiltered attachment impurity of DF film surface is washed away；The time of backwash is 30 seconds, 30 seconds backwash effects
Preferably, cost is minimum；If it exceeds 30 seconds, the particulate matter of DF film surface accumulation rinses out already, increases at sewage instead
The sewage quantity of reason, cost of idleness；Time is lower than 30 seconds, and punching does not wash clean；And fixed time cleaning.Fixed time cleaning may insure ultrafiltration work
To the filter effect of sewage treatment in sequence, fixed time cleaning is specially ultrafiltration and recoil cycle operation according to set time, and 30 minutes
After ultrafiltration, stops ultrafiltration and start to recoil, recoil and stop after 30 seconds, start ultrafiltration, such cycle operation.
In nanofiltration processing and reverse osmosis treatment, it can periodically add 5% citric acid water in water, to nanofiltration membrane and reverse osmosis (RO)
Film carries out softening cleaning treatment, to ensure the filtering feature and filter effect of nanofiltration membrane and reverse osmosis (RO) film, and extends nanofiltration membrane
The time is used with reverse osmosis (RO) film；Timing is that every 4 hours are primary, certainly according to actual needs may be week other time
Phase is not added herein and repeats.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. the sewage treatment circulatory system, which is characterized in that the sewage treatment circulatory system includes:
Wash pool platform, the wash pool platform are located above sewage collecting pool for placing and cleaning workpiece to be cleaned, wash pool platform, wash pool platform
External running water pipe and purification return pipe；
Sewage collecting pool, the sewage collecting pool are connect with the wash pool platform, and for receiving the sewage of wash pool platform transfer, sewage is received
Collect and be equipped with liquid-level switch in pond, whether the sewage that liquid-level switch is used to detect in sewage collecting pool has expired, and sewage is completely believed
Number it is sent to the first collecting pump；
One end of first collecting pump, the first collecting pump is connect by pipeline with sewage collecting pool, and the first collecting pump is used for sewage
Sewage in collecting pit transfers to the first cesspool or the second cesspool；
The other end of first cesspool, the first collecting pump is connect by pipeline with the first cesspool, and liquid is equipped in the first cesspool
Bit switch and agitating device；
The other end of second cesspool, the first collecting pump is connect by pipeline with the second cesspool, and liquid is equipped in the second cesspool
Bit switch and agitating device；
One end of second collecting pump, the second collecting pump is connect with the first cesspool and the second cesspool respectively by pipeline, and second
Collecting pump is used to the sewage in the first cesspool or the second cesspool transferring to the first filter press；
The other end of first filter press, the second collecting pump is connect by pipeline with the first filter press, and the first filter press is used for will be dirty
Fraction solids substance and sewage separation in water；
One end of third collecting pump, third collecting pump is connect with the first cesspool and the second cesspool respectively by pipeline, third
Collecting pump is used to the sewage in the first cesspool and the second cesspool transferring to third cesspool；
The other end of third cesspool and agitating device, third collecting pump is connect by pipeline with third cesspool；
4th collecting pump, by pipeline and the first filter press, the other end passes through pipeline and third sewage for one end of the 4th collecting pump
Pond connection, the 4th collecting pump are used to the sewage in the first filter press transferring to third cesspool；
One end of 5th collecting pump, the 5th collecting pump is connect by pipeline with third cesspool, and the 5th collecting pump is used for third
Sewage in cesspool transfers to the second filter press；
The other end of second filter press, the 5th collecting pump is connect by pipeline with the second filter press, and the second filter press is used for will be dirty
Part coarse particulate matter and sewage separation in water；
4th cesspool, one end of the 4th cesspool connects by pipeline with the second filter press, and the 4th cesspool is used for reception the
Two filter presses transfer the sewage of coming；
One end of ultrafiltrate pump, ultrafiltrate pump is connect by pipeline with the 4th cesspool, and ultrafiltrate pump is used for the dirt in the 4th cesspool
Water transfers to ultrafiltration apparatus；
The other end of ultrafiltration apparatus, ultrafiltrate pump is connect by pipeline with ultrafiltration apparatus, and ultrafiltration apparatus is used for big in sewage
Grain and color are filtered and decolourize；
One end of micro-filtration, micro-filtration is connect by pipeline with ultrafiltration apparatus, and micro-filtration is used for big in sewage
Grain and color are filtered and decolourize, DF film built in micro-filtration；
The one end in ultrafiltration pond, ultrafiltration pond is connect by pipeline with micro-filtration；
One end of nanofiltration pump, nanofiltration pump is connect by pipeline with ultrafiltration pond, and nanofiltration is pumped for transferring to the sewage in ultrafiltration pond
Nanofiltration device；
Nanofiltration device, one end of nanofiltration device are connected by pipeline and nanofiltration pump, nanofiltration device with to sewage microorganism and color
Degree is removed；Nanofiltration membrane built in nanofiltration device；
The one end in nanofiltration pond, nanofiltration pond is connect by pipeline with nanofiltration device；
One end of anti-permeability pump, anti-permeability pump is connect by pipeline with nanofiltration pond, and anti-permeability pump is used for the sewage in nanofiltration pond
Transfer to reverse osmosis unit；
One end of reverse osmosis unit, reverse osmosis unit is connect by pipeline with anti-permeability pump, and reverse osmosis unit is for removing through receiving
Filter tank conveys the fine particle in water；Reverse osmosis (RO) film built in reverse osmosis unit；
One end of clear water reserviors, clear water reserviors is connect by pipeline with reverse osmosis unit, and the external purification return pipe of clear water reserviors purifies return water
Pipe connects clear water reserviors and wash pool platform, and purification return pipe is equipped with back water pump, and back water pump will be in clear water reserviors by purification return pipe
Purified water transfers to wash pool platform, for used in cleaning；
One end of backwashing pump, backwashing pump is separately connected by pipeline and ultrafiltration pond, nanofiltration pond, clear water reserviors, and the other end passes through
Pipeline is connect with micro-filtration, and backwashing pump is used to the liquid of ultrafiltration pond, nanofiltration pond, clear water reserviors transferring to micro-filtration to micro-
Filter device is cleaned.
2. the sewage treatment circulatory system according to claim 1, which is characterized in that the first PP cotton layer built in ultrafiltration apparatus,
Carbon-coating and the 2nd PP cotton layer.
3. the sewage treatment circulatory system according to claim 1, which is characterized in that sewage disposal system further includes sterilization dress
It sets, sterilizing unit is arranged between ultrafiltration pond and micro-filtration, and sterilizing unit is ultraviolet lamp.
4. the sewage treatment circulatory system according to claim 1, which is characterized in that sewage disposal system further includes that concentrated water is returned
One end of flow tube, concentrate recirculation pipe is connect with nanofiltration device and reverse osmosis unit respectively, and the other end is connect with the 4th cesspool.
5. sewage treatment round-robin method, which is characterized in that sewage treatment round-robin method includes the following steps:
(1) sewage collecting
The workpiece that will be cleaned is placed on wash pool platform, and the preferential purified water cleaning workpiece using after sewage treatment works as purified water
When insufficient, tap water cleaning workpiece can be used, the sewage generated after cleaning workpiece is flowed into sewage collecting pool through wash pool platform, when
After the full electric potential signal of the liquid-level switch triggering sewage collecting pit level of sewage collecting pool, sewage is turned by the first collecting pump
It is sent in the first cesspool or the second cesspool；
(2) dosing precipitates
After the full electric potential signal of the liquid-level switch triggering sewage collecting pit level in the first cesspool and the second cesspool, point
It is other to expired cesspool implantation concentration be 30%-33% hydrochloric acid, be then stirred, make its PH 4, then natural sedimentation 1
Hour, and it is subject to pond neutrality line, half pond sewage on the first cesspool or the second cesspool is transferred to the by third collecting pump
In three cesspools, the remaining dirty slurry of lower half pond is transferred in the first filter press by the second collecting pump；
(3) filters pressings
First filter press works, and dirt slurry is separated into sewage and not filtrable solid matter, the sewage isolated passes through
4th collecting pump dumps in third cesspool, not filtrable residual solids substance, then packs recycling after taking out；
(4) alkaline cleaning
After sewage in third cesspool is stored to certain water level, the sewage in third cesspool is carried out to add alkali, neutralizes water quality
PH value, it is agitated uniformly after, PH 8.5；
(5) secondary filters pressing
Sewage after alkaline cleaning is dumped in the second filter press by the 5th collecting pump, the second filter press carries out filters pressing again,
Coarse particulate matter in filter sewage, the sewage being press-filtered out are transferred in the 4th cesspool, not filtrable coarse particulate matter, then
Recycling is packed after taking-up；
(6) hyperfiltration treatment
When the water level in the 4th cesspool reaches certain water level, the sewage in the 4th cesspool is transferred to ultrafiltration and filled by ultrafiltrate pump
It sets, Jing Yici PP cotton layer, carbon-coating, secondary PP layers of progress by-pass filtration,.To in sewage bulky grain and color be filtered and take off
Color；
(7) micro-filtration is handled
Further filtered by the sewage of ultrafiltration apparatus by the DF film in micro-filtration, the water of filtering again through ultraviolet light irradiation into
Ultrafiltration pond is flowed into after row sewage sterilization processing；
(8) nanofiltration is handled
After the water level in ultrafiltration pond reaches certain height of water level, the sewage in ultrafiltration pond is transferred to nanofiltration device, nanofiltration by nanofiltration pump
Device work, sewage carry out secondary filtration through the nanofiltration membrane in nanofiltration device, and the sewage after nanofiltration membrane is temporarily stored in nanofiltration
Chi Zhong cannot pass through the impurity of nanofiltration membrane, through concentrate recirculation pipe, flow back into the 4th cesspool, and it is straight to repeat step (6) to (8)
Into sewage, all substances can pass through nanofiltration membrane；
(9) reverse osmosis treatment
After the water level in nanofiltration pond reaches certain height of water level, the sewage in nanofiltration pond is transferred to reverse osmosis unit by anti-permeability pump,
Reverse osmosis unit work, sewage carry out three-stage filtration through the reverse osmosis (RO) film in reverse osmosis unit, and sewage is through reverse osmosis (RO) film mistake
After filter, water quality is detected through conductivity, has been the water quality for meeting purified water requirement, and purified water at this time has been clear water, is kept in
In clear water reserviors, waits and enter cycling use of water process (entering wash pool platform), i.e. progress workpiece cleaning by purifying return pipe；It cannot
It is flowed back into the 4th cesspool by the impurity of reverse osmosis (RO) film through concentrate recirculation pipe, repeats step (6) to (9) until sewage
Middle all substances can pass through reverse osmosis (RO) film；
(10) it backwashes
After hyperfiltration treatment 30 minutes, backwashing pump starting, by the Spinal Cord Oedema in ultrafiltration pond, nanofiltration pond, clear water reserviors to micro-filtration,
DF film in micro-filtration is backwashed, the unfiltered attachment impurity of DF film surface is washed away；The time of backwash is 30 seconds,
And fixed time cleaning；Fixed time cleaning is specially ultrafiltration and recoil cycle operation according to set time, after ultrafiltration in 30 minutes, stops ultrafiltration
Start to recoil, recoil and stop after 30 seconds, starts ultrafiltration, such cycle operation.
6. sewage treatment round-robin method according to claim 5, which is characterized in that in nanofiltration processing and reverse osmosis treatment,
The citric acid water that 5% can periodically be added in water, carries out softening cleaning treatment to nanofiltration membrane and reverse osmosis (RO) film, is periodically every 4
Hour is primary.
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