CN210764812U - Zero release processing system of optic fibre waste water - Google Patents
Zero release processing system of optic fibre waste water Download PDFInfo
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- CN210764812U CN210764812U CN201921024614.8U CN201921024614U CN210764812U CN 210764812 U CN210764812 U CN 210764812U CN 201921024614 U CN201921024614 U CN 201921024614U CN 210764812 U CN210764812 U CN 210764812U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 55
- 238000012545 processing Methods 0.000 title claims abstract description 7
- 239000000835 fiber Substances 0.000 title abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 86
- 239000010802 sludge Substances 0.000 claims abstract description 46
- 239000013307 optical fiber Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000007380 fibre production Methods 0.000 claims abstract description 30
- 238000001471 micro-filtration Methods 0.000 claims abstract description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- 230000008020 evaporation Effects 0.000 claims abstract description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 14
- 238000001223 reverse osmosis Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 208000028659 discharge Diseases 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- -1 fluoride ions Chemical class 0.000 claims description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 claims description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 4
- 238000004062 sedimentation Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 14
- 239000000084 colloidal system Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 229910001634 calcium fluoride Inorganic materials 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000005653 Brownian motion process Effects 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006115 defluorination reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model provides an optic fibre waste water zero release processing system, include: the device comprises a homogenizing adjusting tank, a reaction device, a concentration tank, a microfiltration device, a water production tank, a concentration and reduction device, an evaporation device, a sludge concentration tank and a sludge drying device. The utility model can recycle more than 80% of water in the optical fiber production wastewater through the combination of the reaction device, the micro-filtration device, the concentration and decrement device and the evaporation device; through setting up reaction unit into first reaction tank and second reaction tank, and set up the bottom of first reaction tank and second reaction tank into the toper structure simultaneously, can form the deposit of magnesium hydrate and calcium carbonate in first reaction tank and second reaction tank effectively, and arrange simultaneously the micro-filtration device and can reduce the dosage of sodium hydroxide and sodium carbonate effectively, further reduce the treatment cost, can also improve the concentrated effect of magnesium hydrate and calcium carbonate, need not additionally to arrange the sedimentation tank, reduce the area of system.
Description
Technical Field
The utility model belongs to the technical field of the water treatment, especially, relate to an optic fibre waste water zero release processing system.
Background
With the development of the optical fiber communication industry in China, the production of optical fiber, which is the most basic element in China, is also rapidly developed. The wastewater treatment in the optical fiber production process is generally used as a matching project of the optical fiber tail gas purification project. The tail gas generated in the production of the optical fiber not only contains SiO with extremely fine grain diameter2Dust, but also HCl, HF and Cl2And the like, which are very corrosive. After the fiber tail gas is treated by water spraying, electric precipitation and alkali liquor absorption, the tail gas reaches the standard and is discharged. After the harmful substances in the tail gas are sprayed and absorbed by alkali liquor, hydrochloric acid, hypochlorous acid, hydrofluoric acid and silicon dioxide colloid substances are formed in water. The optical fiber wastewater mainly comes from the discharged water of the optical fiber production tail gas treatment. The source of the waste alkali liquor is mainly acidic water discharged by a spray tower and an electric dust collector and a small amount of waste alkali liquor discharged by an absorption tower.
The pollutant in the optical fiber wastewater is mainly inorganic matter, belonging to the category of inorganic wastewater. The fiber wastewater has the following characteristics: 1) SiO in wastewater2The particle size is extremely fine, the particle size is 0.05-0.3 mu m, the particle belongs to colloidal particles, and the colloidal particles in water have Brownian motion characteristics and are provided with double electric layers. In the colloidal solution, the same particles carry charges of the same polarity and repel each other, can not be mutually bonded in water and are in a relatively stable state, so that the colloidal particles are stable in water and are not easy to settle down; 2) the optical fiber wastewater contains a small amount of F-Although the initial concentration is not exceeded, F in the wastewater is recycled because 95% of the treated water is recycled-Constantly enriched, F-The concentration is increased continuously, which not only causes F in the discharged wastewater-Exceeding the standard and influencing the absorption of HF in the tail gas treatment. Therefore, F in the wastewater must be treated-Carrying out treatment; 3) the hardness is high, which causes the scaling of the MVR system, which is the terminal treatment process of the wastewater zero discharge system, and influences the long-term stable operation of the MVR system.
Aiming at the above wastewater characteristics, the wastewater treatment process is mainlyIs SiO2Sedimentation of the colloid, F-And removing calcium and magnesium ions. To make SiO2The colloidal particles settle, generally by adding coagulant aids with opposite charges to the wastewater to destabilize the colloids, and the destabilized particles in the wastewater collide with each other and further aggregate together by the action of van der waals forces. In order to make the gathered particles easy to settle, a flocculating agent is added into the solution, and the bridging effect of the flocculating agent is utilized to promote the small-particle-size particles to be further aggregated into large particles for settling. For F-The calcium method is generally used for removing fluorine, i.e. by F-With Ca2+Formation of CaF2Removing F by precipitation-。CaF2pH value of formation and reaction, coagulation reaction time, addition amount of calcium salt, and promotion of CaF2Growth factors of (C) and the like have a great relationship, and CaF is generated2The optimum pH value of the reaction is about 8, and the coagulation reaction time is about 30 min. The addition amount of the calcium salt cannot be calculated according to the theory, and the waste water is a complex system and is often interfered by various ions. To make fine CaF2The crystal is enlarged, a flocculating agent is required to be added, and a coagulant aid is also required to be added for accelerating the sedimentation speed. The calcium method can only reach the effluent F after defluorination treatment-About 20 mg/L, and strengthening treatment, such as TMF strengthening softening treatment, is necessary to ensure that the discharged water reaches the standard. According to the characteristics of the optical fiber wastewater, PAC and PAM are selected as adding agents, and the agents can be used as flocculating agents and coagulant aids for treating fluorine-containing wastewater and can also be used as SiO2The coagulant and the flocculant of the colloid neutralize negative charges of the colloid and play a role of bridging, and bridge small particle flocs formed after coagulation into large particles so as to be easy to precipitate.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims at providing a ferric waste acid is recovery system in coordination.
To this end, the above object of the present invention is achieved by the following technical solutions:
an optical fiber production wastewater zero-discharge treatment system for treating communication optical fiber production wastewater, comprising:
-a homogenizing adjusting tank for homogenizing and mixing the communication optical fiber production wastewater entering the optical fiber production wastewater zero-emission treatment system;
the inlet of the reaction device is communicated with the outlet of the homogeneous regulating tank and is used for carrying out reaction treatment on the optical fiber production wastewater from the homogeneous regulating tank so as to separate silica and fluoride ions from the optical fiber production wastewater;
a concentration tank which is communicated with the upper water outlet of the reaction device,
a microfiltration device communicated with the upper water outlet of the concentration tank,
a water production tank communicating with the water production outlet of the microfiltration device,
-an inlet of the concentration and decrement device is communicated with an outlet of the water production tank;
-an evaporation device, the inlet of which is in communication with the concentrated water outlet of the concentration and decrement device;
-a sludge thickening tank, the inlet of which is in communication with the bottom sludge outlet of the reaction apparatus; and
the inlet of the sludge drying device is communicated with the outlet of the sludge concentration tank.
When adopting above-mentioned scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as a preferable scheme of the utility model, the reaction device comprises a first reaction tank and a second reaction tank which are connected in series, and a lower water outlet of the first reaction tank is communicated with the second reaction tank; the first reaction tank is provided with a first feeding port, the first feeding port is used for feeding calcium hydroxide and magnesium chloride into the first reaction tank, the second reaction tank is provided with a second feeding port, and the second feeding port is used for feeding sodium hydroxide and sodium carbonate into the second reaction tank; and sludge outlets are formed in the bottoms of the first reaction tank and the second reaction tank and communicated to the sludge concentration tank.
As the preferred scheme of the utility model, all be equipped with mechanical agitator in first reaction tank and the second reaction tank to strengthen the reaction effect in first, the second reaction tank.
As the utility model discloses an optimal scheme, the bottom of first, second reaction tank is the toper structure, the toper bottom of first, second reaction tank is equipped with sludge outlet respectively, and is equipped with pneumatic diaphragm pump on the connecting pipeline between sludge outlet and the sludge thickening groove.
As the utility model discloses an optimal scheme, the bottom of concentrator tank is the toper structure, the toper bottom in concentrator tank is equipped with sludge outlet, and is equipped with pneumatic diaphragm pump on the connecting pipeline between sludge outlet and the sludge concentrator tank.
As the utility model discloses an optimal scheme, the microfiltration device is tubular microfiltration membrane device, be equipped with sour throwing mouth on the connecting pipeline between tubular microfiltration membrane device and the product basin.
As the utility model discloses a preferred scheme, connecting line is equipped with pH meter and hardness detector between mouth and the product water tank in sour throwing.
As the preferred scheme of the utility model, concentrated decrement device is high pressure reverse osmosis unit, high pressure reverse osmosis unit is including roll formula reverse osmosis unit or dish tubular reverse osmosis unit.
As the preferred proposal of the utility model, the sludge drying device is a plate-and-frame filter press or a disc screw type sludge dewatering machine or a vacuum belt conveyor.
As the preferred scheme of the utility model, evaporation plant is the MVR evaporimeter.
The utility model provides an optic fibre waste water zero release processing system has following beneficial effect:
(1) through the combination of the reaction device, the microfiltration device, the concentration and decrement device and the evaporation device, more than 80 percent of water in the optical fiber production wastewater can be recycled;
(2) through setting up reaction unit into first reaction tank and second reaction tank, and set up the bottom of first reaction tank and second reaction tank into the toper structure simultaneously, can form the deposit of magnesium hydrate and calcium carbonate in first reaction tank and second reaction tank effectively, and arrange simultaneously the micro-filtration device and can reduce the dosage of sodium hydroxide and sodium carbonate effectively, further reduce the treatment cost, can also improve the concentrated effect of magnesium hydrate and calcium carbonate, need not additionally to arrange the sedimentation tank, reduce the area of system.
(3) The arrangement of the high-pressure reverse osmosis device can improve the concentration of TDS in the wastewater, realize concentration and reduction treatment on the wastewater, reduce the treatment capacity of the rear-end MVR evaporator and reduce the investment and running cost of the MVR evaporator;
(4) the utility model discloses neither need the steam evaporation of high energy consumption to handle when MVR evaporimeter handles waste water, can also improve the economic nature of waste water evaporation.
Drawings
FIG. 1 is a schematic view of a zero discharge treatment system for wastewater from fiber production provided by the present invention.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
An optical fiber production wastewater zero-discharge treatment system for treating communication optical fiber production wastewater, comprising:
a homogenizing adjusting tank 110, wherein the homogenizing adjusting tank 110 is used for homogenizing and mixing the communication optical fiber production wastewater entering the optical fiber production wastewater zero-emission treatment system;
a reaction device, an inlet of which is communicated with an outlet of the homogeneous conditioning tank 110, for performing a reaction treatment on the optical fiber production wastewater from the homogeneous conditioning tank 110 to separate silica and fluorine ions from the optical fiber production wastewater;
in this embodiment, the reaction apparatus is preferably arranged to include a first reaction tank 121 and a second reaction tank 122 connected in series, and a lower water outlet of the first reaction tank 121 is communicated with the second reaction tank 122; a first adding port 121a is arranged on the first reaction tank 121, the first adding port 121a is used for adding calcium hydroxide and magnesium chloride into the first reaction tank 121, a second adding port 122a is arranged on the second reaction tank 122, and the second adding port 122a is used for adding sodium hydroxide and sodium carbonate into the second reaction tank 122; the bottoms of the first reaction tank 121 and the second reaction tank 122 are both provided with sludge outlets and are both communicated with the sludge concentration tank 180, mechanical stirrers are arranged in the first reaction tank 121 and the second reaction tank 122 to enhance the reaction effect in the first reaction tank 122 and the second reaction tank 122, the bottoms of the first reaction tank 122 and the second reaction tank 122 are of conical structures, the conical bottoms of the first reaction tank 122 and the second reaction tank 122 are respectively provided with sludge outlets, and a connecting pipeline between the sludge outlets and the sludge concentration tank 180 is provided with a pneumatic diaphragm pump;
a concentration tank 130, wherein the concentration tank 130 is communicated with the upper water outlet of the reaction device, in this embodiment, the bottom of the concentration tank 130 is a conical structure, the conical bottom of the concentration tank is provided with a sludge outlet, and a connecting pipeline between the sludge outlet and the sludge concentration tank 180 is provided with a pneumatic diaphragm pump;
a microfiltration device 140, the microfiltration device 140 being in communication with the upper water outlet of the concentration tank 130, in this embodiment, the microfiltration device is a tubular microfiltration membrane device, an acid adding port 150a is provided on a connecting pipeline between the tubular microfiltration membrane device and the water production tank 150, a pH meter 150b and a hardness detector 150c are provided on the connecting pipeline between the acid adding port 150a and the water production tank 150, the pH meter 150b and the hardness detector 150c may be arranged at the same position or at different positions,
a water producing tank 150, the water producing tank 150 being in communication with the water producing outlet of the microfiltration device,
a concentration and decrement device 160, wherein the inlet of the concentration and decrement device 160 is communicated with the outlet of the water production tank 150, in this embodiment, the concentration and decrement device is a high-pressure reverse osmosis device, and the high-pressure reverse osmosis device comprises a roll-type reverse osmosis device or a disc-tube type reverse osmosis device;
an evaporation device 170, an inlet of the evaporation device 170 is communicated with a concentrated water outlet of the concentration and reduction device, in this embodiment, the evaporation device is an MVR evaporator;
a sludge concentration tank 180, the inlet of the sludge concentration tank 180 being in communication with the bottom sludge outlet of the reaction apparatus; and
a sludge drying device 190, an inlet of the sludge drying device 190 is communicated with an outlet of the sludge concentration tank 180, in this embodiment, the sludge drying device 190 is a plate-and-frame filter press, a disc-screw sludge dewatering machine or a vacuum belt conveyor.
The above detailed description is provided for the purpose of illustrating the present invention and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides an optical fiber waste water zero release processing system, its characterized in that, optical fiber waste water zero release processing system is used for handling communication optical fiber waste water, includes:
-a homogenizing adjusting tank for homogenizing and mixing the communication optical fiber production wastewater entering the optical fiber production wastewater zero-emission treatment system;
the inlet of the reaction device is communicated with the outlet of the homogeneous regulating tank and is used for carrying out reaction treatment on the optical fiber production wastewater from the homogeneous regulating tank so as to separate silica and fluoride ions from the optical fiber production wastewater;
a concentration tank which is communicated with the upper water outlet of the reaction device,
a microfiltration device communicated with the upper water outlet of the concentration tank,
a water production tank communicating with the water production outlet of the microfiltration device,
-an inlet of the concentration and decrement device is communicated with an outlet of the water production tank;
-an evaporation device, the inlet of which is in communication with the concentrated water outlet of the concentration and decrement device;
-a sludge thickening tank, the inlet of which is in communication with the bottom sludge outlet of the reaction apparatus; and
the inlet of the sludge drying device is communicated with the outlet of the sludge concentration tank.
2. The optical fiber production wastewater zero-discharge treatment system of claim 1, wherein the reaction device comprises a first reaction tank and a second reaction tank which are connected in series, and a lower water outlet of the first reaction tank is communicated with the second reaction tank; the first reaction tank is provided with a first feeding port, the first feeding port is used for feeding calcium hydroxide and magnesium chloride into the first reaction tank, the second reaction tank is provided with a second feeding port, and the second feeding port is used for feeding sodium hydroxide and sodium carbonate into the second reaction tank; and sludge outlets are formed in the bottoms of the first reaction tank and the second reaction tank and communicated to the sludge concentration tank.
3. The optical fiber production wastewater zero-discharge treatment system as claimed in claim 2, wherein the first reaction tank and the second reaction tank are both provided with mechanical stirrers to enhance the reaction effect in the first reaction tank and the second reaction tank.
4. The optical fiber production wastewater zero-discharge treatment system according to claim 2, wherein the bottoms of the first and second reaction tanks are of a tapered structure, the tapered bottoms of the first and second reaction tanks are respectively provided with a sludge outlet, and a connecting pipeline between the sludge outlet and the sludge concentration tank is provided with a pneumatic diaphragm pump.
5. The optical fiber production wastewater zero-emission treatment system as claimed in claim 1, wherein the bottom of the concentration tank is a conical structure, the conical bottom of the concentration tank is provided with a sludge outlet, and a connecting pipeline between the sludge outlet and the sludge concentration tank is provided with a pneumatic diaphragm pump.
6. The optical fiber production wastewater zero-discharge treatment system as claimed in claim 1, wherein the microfiltration device is a tubular microfiltration membrane device, and an acid addition port is arranged on a connection pipeline between the tubular microfiltration membrane device and the water production tank.
7. The optical fiber production wastewater zero-discharge treatment system as claimed in claim 6, wherein a pH meter and a hardness detector are arranged between the acid adding port and the water production tank through the connecting pipeline.
8. The optical fiber production wastewater zero emission treatment system of claim 1, wherein the concentration and decrement device is a high-pressure reverse osmosis device, and the high-pressure reverse osmosis device comprises a roll-type reverse osmosis device or a disc tube type reverse osmosis device.
9. The optical fiber production wastewater zero-emission treatment system of claim 1, wherein the sludge drying device is a plate-and-frame filter press, a disc-screw sludge dewatering machine or a vacuum belt conveyor.
10. The zero discharge treatment system for wastewater generated in optical fiber production according to claim 1, wherein the evaporation device is an MVR evaporator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921024614.8U CN210764812U (en) | 2019-07-03 | 2019-07-03 | Zero release processing system of optic fibre waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921024614.8U CN210764812U (en) | 2019-07-03 | 2019-07-03 | Zero release processing system of optic fibre waste water |
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| CN210764812U true CN210764812U (en) | 2020-06-16 |
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| CN201921024614.8U Active CN210764812U (en) | 2019-07-03 | 2019-07-03 | Zero release processing system of optic fibre waste water |
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Denomination of utility model: A zero discharge treatment system for optical fiber production wastewater Effective date of registration: 20211203 Granted publication date: 20200616 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2021980014035 |
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Denomination of utility model: A zero discharge treatment system for optical fiber production wastewater Effective date of registration: 20220322 Granted publication date: 20200616 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: SUNUP ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2022990000163 |
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