CN109437438B - TFT-LCD glass thinning wastewater treatment system - Google Patents
TFT-LCD glass thinning wastewater treatment system Download PDFInfo
- Publication number
- CN109437438B CN109437438B CN201811536787.8A CN201811536787A CN109437438B CN 109437438 B CN109437438 B CN 109437438B CN 201811536787 A CN201811536787 A CN 201811536787A CN 109437438 B CN109437438 B CN 109437438B
- Authority
- CN
- China
- Prior art keywords
- tank
- outlet
- primary
- acid
- regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 36
- 239000011521 glass Substances 0.000 title claims abstract description 13
- 239000002351 wastewater Substances 0.000 claims abstract description 90
- 238000003860 storage Methods 0.000 claims abstract description 78
- 239000002585 base Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002253 acid Substances 0.000 claims abstract description 34
- 238000005273 aeration Methods 0.000 claims abstract description 34
- 239000003513 alkali Substances 0.000 claims abstract description 34
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 29
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 29
- 239000004571 lime Substances 0.000 claims abstract description 29
- 238000005406 washing Methods 0.000 claims abstract description 26
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 60
- 230000001105 regulatory effect Effects 0.000 claims description 55
- 239000010802 sludge Substances 0.000 claims description 49
- 238000005189 flocculation Methods 0.000 claims description 28
- 230000016615 flocculation Effects 0.000 claims description 28
- 238000004062 sedimentation Methods 0.000 claims description 28
- 239000002912 waste gas Substances 0.000 claims description 25
- 238000005345 coagulation Methods 0.000 claims description 24
- 230000015271 coagulation Effects 0.000 claims description 24
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 22
- 239000008267 milk Substances 0.000 claims description 20
- 210000004080 milk Anatomy 0.000 claims description 20
- 235000013336 milk Nutrition 0.000 claims description 20
- 239000004576 sand Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 239000000292 calcium oxide Substances 0.000 claims description 11
- 235000012255 calcium oxide Nutrition 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 7
- 238000010517 secondary reaction Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 abstract description 12
- 229910052731 fluorine Inorganic materials 0.000 abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011574 phosphorus Substances 0.000 abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 238000005498 polishing Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 229920002401 polyacrylamide Polymers 0.000 description 15
- 235000011121 sodium hydroxide Nutrition 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 229910004261 CaF 2 Inorganic materials 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 239000002562 thickening agent Substances 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- -1 fluorine ions Chemical class 0.000 description 3
- 238000010979 pH adjustment Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229940037003 alum Drugs 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000010812 mixed waste Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- CADZRPOVAQTAME-UHFFFAOYSA-L calcium;hydroxy phosphate Chemical compound [Ca+2].OOP([O-])([O-])=O CADZRPOVAQTAME-UHFFFAOYSA-L 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006115 defluorination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a TFT-LCD glass thinning wastewater treatment system, which comprises: a. an acid-base wastewater treatment part b, a mixed wastewater treatment part c, an exhaust gas washing part d, a lime slurry preparation part e, a medicament preparation storage part f, an aeration part g and a waste residue treatment part; five paths of waste water (concentrated acid waste water, concentrated alkali waste water, fluorine-containing waste water, phosphorus-containing waste water and polishing waste water) in the TFT-LCD glass thinning production process respectively enter corresponding treatment parts for classification treatment, and the treatment parts cooperate with each other to form an organic unity, so that the waste water in the production process can meet the function of complete recycling; after the wastewater is treated, the water quality standard of factory production reuse can be met, closed circulation is realized, a large amount of water is saved, and the national energy-saving and environment-friendly targets are responded.
Description
Technical Field
The invention relates to the technical field of glass thinning wastewater treatment, in particular to a TFT-LCD glass thinning wastewater treatment system.
Background
After being thinned, the TFT-LCD glass is mainly applied to electronic industries such as mobile phone capacitive screens, liquid crystals and the like, and has huge market prospect. During the production of an enterprise, a certain amount of industrial wastewater will be produced. The waste water mainly comes from alkaline waste water generated by pre-etching treatment and cleaning, fluorine-containing waste water generated by post-etching cleaning, grinding waste water, phosphorus-containing waste water, acid waste water and the like; and (3) draining water from the cooling circulation system, and generating concentrated wastewater from the pure water system, waste water from the waste gas treatment device and the like. The wastewater contains a large amount of acid, alkali, phosphate, fluoride, suspended matters and a small amount of organic matters. In order to achieve the environmental protection requirement of wastewater discharge and realize the sustainable development goal, sewage treatment facilities are required to be arranged, so that the project production wastewater is ensured to reach the discharge standard after being treated. At present, the wastewater has no mature treatment process.
Disclosure of Invention
The invention aims to provide a TFT-LCD glass thinning wastewater treatment system which can treat wastewater containing a large amount of acid, alkali, phosphate, fluoride, suspended matters and a small amount of organic matters generated in TFT-LCD glass thinning production, and ensure that the wastewater discharge reaches the standard.
The technical scheme adopted for solving the technical problems is as follows:
TFT-LCD glass attenuate effluent disposal system includes:
a. an acid-base wastewater treatment part,
The acid-base wastewater treatment part comprises a concentrated acid storage tank, a concentrated base storage tank and an acid-base treatment tank, wherein an inlet of the concentrated acid storage tank is used as a concentrated acid wastewater inlet, an inlet of the concentrated base storage tank is used as a concentrated base wastewater inlet, and an outlet of the concentrated acid storage tank and an outlet of the concentrated base storage tank are respectively connected to an inlet of the acid-base treatment tank;
b. a mixed wastewater treatment part, wherein the mixed wastewater treatment part comprises a mixed wastewater treatment part,
The mixed wastewater treatment part comprises a mixed wastewater regulating tank, a primary pH regulating tank, a primary reaction tank, a primary coagulation tank, a primary flocculation tank, a primary sedimentation tank, a secondary pH regulating tank, a secondary reaction tank, a secondary coagulation tank, a secondary flocculation tank, a secondary sedimentation tank, an intermediate water tank, a sand filter and a clean water tank which are sequentially communicated, wherein a clean water pump and a back flushing pump are respectively arranged at the outlet of the clean water tank, the back flushing pump is connected with the back flushing inlet of the sand filter, and the back flushing outlet of the sand filter is connected with the mixed wastewater regulating tank;
c. an exhaust gas washing part, which is used for washing the exhaust gas,
The waste gas washing part comprises a waste gas washing tower, a circulating alkali liquor pump and a draught fan; the top air outlets of the concentrated acid storage tank, the concentrated alkali storage tank, the acid-base treatment tank, the mixed wastewater regulating tank and the primary pH regulating tank are respectively connected with an inlet of a draught fan through connecting pipes, an outlet of the draught fan is connected with an air inlet of the waste gas washing tower, an inlet of the circulating alkali pump is connected with the bottom of the waste gas washing tower, and an outlet of the circulating alkali pump is connected with a spray pipe in the waste gas washing tower;
d. a lime slurry preparation part,
The lime slurry preparation part comprises a quicklime storage bin, a dust remover is arranged at the top of the quicklime storage bin, a screw conveyor and a lime milk pool are sequentially arranged at the bottom of the quicklime storage bin, a lime milk conveying pump is arranged at the outlet of the lime milk pool, and the outlet of the lime milk conveying pump is respectively connected with a primary pH regulating pool, a secondary pH regulating pool and an acid-base treatment pool;
e. a medicine preparation storage part,
The medicament preparation storage part comprises a PAC dispensing tank, a PAM dispensing tank, a NaOH dispensing tank and an H 2SO4 storage tank;
The bottom of the PAC dispensing pool is connected with a PAC storage tank through a PAC lifting pump, and the outlet of the PAC storage tank is respectively connected with a primary coagulation pool and a secondary coagulation pool;
The bottom of the PAM dispensing tank is connected with a PAM storage tank through a PAM lifting pump, and the outlet of the PAM storage tank is respectively connected with a primary flocculation tank and a secondary flocculation tank;
the bottom of the NaOH dispensing tank is connected with a NaOH storage tank through a NaOH lifting pump, and the outlet of the NaOH storage tank is respectively connected with a primary pH regulating tank and a secondary pH regulating tank;
the outlet of the H 2SO4 storage tank is connected with the middle water tank;
f. An aeration part is arranged on the bottom of the aeration tank,
The aeration part comprises a group of aeration devices which are respectively arranged in an acid-base treatment tank, a mixed wastewater regulating tank, a primary pH regulating tank, a primary reaction tank, a primary coagulation tank, a primary flocculation tank, a secondary pH regulating tank, a secondary reaction tank, a secondary coagulation tank and a secondary flocculation tank; the inlets of the aeration devices are respectively connected to the Roots blower through air pipes;
g. A waste residue treatment part, a waste residue treatment part and a waste residue treatment part,
The waste residue treatment part comprises a sludge concentration tank, a concentration tank sludge lifting pump and a filter press, wherein an inlet of the sludge concentration tank is respectively connected with an acid-base treatment tank outlet, a primary sedimentation tank sludge outlet and a secondary sedimentation tank sludge outlet, the sludge concentration tank outlet is connected with the filter press through the concentration tank sludge lifting pump, and the middle part of the sludge concentration tank is connected to the mixed wastewater regulating tank; a liquid receiving tank is arranged below the filtrate outlet of the filter press and is connected with a mixed wastewater regulating tank.
The beneficial effects of the invention are as follows:
1. five paths of waste water (concentrated acid waste water, concentrated alkali waste water, fluorine-containing waste water, phosphorus-containing waste water and polishing waste water) in the TFT-LCD glass thinning production process respectively enter corresponding treatment parts for classification treatment, and the treatment parts cooperate with each other to form an organic unity, so that the waste water in the production process can meet the function of complete recycling.
2. Regulating the pH value of the wastewater to 8-9 by adopting lime milk, adding a proper amount of calcium chloride, supplementing calcium ions, coagulating by aluminum salt and polyacrylamide to form calcium fluoride, calcium hydroxy phosphate and aluminum phosphate indissolvable substances, forming alum blossom with fine suspended substances and colloid substances in the wastewater, settling and separating in a sedimentation tank, and discharging the wastewater into a sewage treatment plant pipe network after the wastewater reaches a nano-tube standard through two-stage sedimentation treatment;
3. Regarding the feasibility of the fluorine-containing wastewater treatment reaching the standard, the solubility product of CaF 2 in water is 2.7X10 -11, the characteristic that F - meets Ca 2＋ to form CaF 2 precipitate is utilized, ca (OH) 2 is added to form CaF 2 precipitate, the concentration of F - can reach 11.4mg/L theoretically, the concentration of fluorine ions in the wastewater can reach 15mg/L stably after the treatment by a calcium precipitation method according to the existing engineering experience, and the stable fluorine removal can be realized by adopting a calcium-based neutralizer and a reactant.
4. In the wastewater treatment process, the wastewater has certain volatility, so that the concentrated acid storage tank, the concentrated alkali storage tank, the acid-base treatment tank, the mixed wastewater regulating tank and the primary pH regulating tank all adopt a closed structure, and a pipeline is arranged to convey the waste gas in each water tank to the waste gas washing tower through a pipe network, so that the waste gas is washed by alkali liquor, and the harmless emission of the waste gas is ensured.
5. In the wastewater treatment process, the acid-base treatment tank, the primary sedimentation tank and the secondary sedimentation tank generate a large amount of waste residues and sludge, the waste residues and the sludge are concentrated by the sludge concentration tank and then are filtered and pressed into filter cakes by the filter press, and finally the filter cakes are transported outwards;
6. after the wastewater is treated, the water quality standard of factory production reuse can be met, closed circulation is realized, a large amount of water is saved, and the national energy-saving and environment-friendly targets are responded.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of a system of the present invention;
FIG. 2 is a schematic diagram of an acid-base wastewater treatment section according to the present invention;
FIG. 3 is a schematic view of a mixed wastewater treatment section of the present invention;
FIG. 4 is a schematic view of an exhaust gas scrubbing section of the present invention;
FIG. 5 is a schematic illustration of a lime slurry preparation section of the present invention;
FIG. 6 is a schematic view of a medicament formulation reservoir of the present invention;
FIG. 7 is a schematic view of a slag treatment section of the present invention.
Detailed Description
As shown in fig. 1, the present invention provides a TFT-LCD glass thinning wastewater treatment system, comprising:
a. an acid-base wastewater treatment part,
As shown in fig. 2, the acid-base wastewater treatment part comprises a concentrated acid storage tank 11, a concentrated alkali storage tank 13 and an acid-base treatment tank 15, wherein an inlet 11 of the concentrated acid storage tank is used as a concentrated acid wastewater inlet, an inlet 12 of the concentrated alkali storage tank is used as a concentrated alkali wastewater inlet, an outlet of the concentrated acid storage tank 11 is connected to an inlet of the acid-base treatment tank 15 through a concentrated acid lifting pump 12, and an outlet of the concentrated alkali storage tank 13 is connected to an inlet of the acid-base treatment tank 15 through a concentrated alkali lifting pump 14; a first stirrer 16 is arranged in the acid-base treatment tank 15;
b. a mixed wastewater treatment part, wherein the mixed wastewater treatment part comprises a mixed wastewater treatment part,
Referring to fig. 3, the mixed wastewater treatment section includes a mixed wastewater adjustment tank 21, a primary pH adjustment tank 23, a primary reaction tank 24, a primary coagulation tank 25, a primary flocculation tank 26, a primary sedimentation tank 27, a secondary pH adjustment tank 28, a secondary reaction tank 29, a secondary coagulation tank 210, a secondary flocculation tank 211, a secondary sedimentation tank 212, an intermediate tank 213, a sand filter 215, and a clean water tank 216, which are sequentially connected; a mixed wastewater lifting pump 22 is arranged between the mixed wastewater regulating tank 21 and the primary pH regulating tank 23, and an intermediate water lifting pump 214 is arranged between the intermediate water tank 213 and the sand filter 215; the outlet of the clean water tank 216 is respectively provided with a clean water pump 217 and a back flushing pump 218, the back flushing pump 218 is connected with a back flushing inlet of the sand filter 215, and a back flushing outlet of the sand filter 215 is connected with the mixed wastewater regulating tank 21;
the bottom of the primary sedimentation tank 27 is provided with a primary sludge pump 219, the inlet of the primary sludge pump 219 is connected with the sludge outlet of the primary sedimentation tank 27, and the primary sedimentation tank 27 is internally provided with a primary inlet guide cylinder 221 and a primary sludge scraper 222;
The bottom of the secondary sedimentation tank 212 is provided with a secondary sludge pump 220, an inlet of the secondary sludge pump 220 is connected with a sludge outlet of the secondary sedimentation tank 212, and a secondary inlet guide cylinder 223 and a secondary mud scraper 224 are arranged in the secondary sedimentation tank 212;
The first-stage pH adjusting tank 23, the first-stage reaction tank 24, the first-stage coagulation tank 25, the first-stage flocculation tank 26, the second-stage pH adjusting tank 28, the second-stage reaction tank 29, the second-stage coagulation tank 210 and the second-stage flocculation tank 211 are respectively provided with a second stirrer 225, a third stirrer 226, a fourth stirrer 227, a fifth stirrer 228, a sixth stirrer 229, a seventh stirrer 230, an eighth stirrer 231 and a ninth stirrer 232;
c. an exhaust gas washing part, which is used for washing the exhaust gas,
Referring to fig. 4, the waste gas washing section includes a waste gas washing tower 31, a circulating lye pump 34, and an induced draft fan 32; the top air outlets of the concentrated acid storage tank 11, the concentrated alkali storage tank 13, the acid-base treatment tank 15, the mixed wastewater regulating tank 21 and the primary pH regulating tank 23 are respectively connected with the inlet of an induced draft fan 32 through a connecting pipe 33, the outlet of the induced draft fan 32 is connected with the air inlet of the waste gas washing tower 31, the inlet of a circulating alkali pump 34 is connected with the bottom of the waste gas washing tower 31, and the outlet of the circulating alkali pump 34 is connected with a spray pipe in the waste gas washing tower 31;
d. a lime slurry preparation part,
Referring to fig. 5, the lime slurry preparation part comprises a quicklime storage bin 41, a dust remover 42 is arranged at the top of the quicklime storage bin 41, a screw conveyor 43 and a lime milk tank 44 are sequentially arranged at the bottom of the quicklime storage bin 41, a lime milk conveying pump 46 is arranged at the outlet of the lime milk tank 44, and the outlet of the lime milk conveying pump 46 is respectively connected with a primary pH adjusting tank 23, a secondary pH adjusting tank 28 and an acid-base treatment tank 15; a tenth stirrer 45 is arranged in the lime milk pool 44;
e. a medicine preparation storage part,
Referring to fig. 6, the medicine preparation storage unit includes PAC dispensing tank 51, PAM dispensing tank 59, naOH dispensing tank 55, and H 2SO4 storage tank 514;
The bottom of the PAC dispensing tank 51 is connected with a PAC storage tank 53 through a PAC lifting pump 52, and an outlet of the PAC storage tank 53 is respectively connected with a primary coagulation tank 25 and a secondary coagulation tank 210; an eleventh stirrer 54 is arranged in the PAC dispensing tank 51;
the bottom of the PAM dispensing tank 59 is connected with a PAM storage tank 511 through a PAM lifting pump 510, and the outlet of the storage tank 511 is respectively connected with a primary flocculation tank 26 and a secondary flocculation tank 211; a twelfth stirrer 512 is arranged in the PAM dispensing tank 59;
The bottom of the NaOH dispensing tank 55 is connected with a NaOH storage tank 57 through a NaOH lifting pump 56, and the outlet of the NaOH storage tank 57 is respectively connected with a primary pH regulating tank 23 and a secondary pH regulating tank 28; a thirteenth stirrer 58 is arranged in the NaOH dispensing tank 55;
The outlet of the H 2SO4 storage tank 514 is connected with the middle water tank 213; the inlet of the H 2SO4 storage tank 514 receives H 2SO4 from the tanker dump through the H 2SO4 dump pump 513;
f. An aeration part is arranged on the bottom of the aeration tank,
The aeration part comprises a group of aeration devices, namely a first aeration device 611 arranged in the acid-base treatment tank 15, and a first pH adjusting tank 23, a first reaction tank 24, a first coagulation tank 25, a first flocculation tank 26, a second pH adjusting tank 28, a second reaction tank 29, a second coagulation tank 210 and a second flocculation tank 211 which are respectively provided with a second aeration device 63, a third aeration device 64, a fourth aeration device 65, a fifth aeration device 66, a sixth aeration device 67, a seventh aeration device 68, an eighth aeration device 69 and a ninth aeration device 610; the outlet of the Roots blower 61 is provided with a valve 612, and the outlet of the valve 612 is connected with the inlet of each aeration device through an air pipe;
g. A waste residue treatment part, a waste residue treatment part and a waste residue treatment part,
Referring to fig. 7, the waste residue treatment section includes a sludge thickener 71, a thickener sludge lift pump 72 and a filter press 73, wherein the inlet of the sludge thickener 71 is connected with the outlet of the acid-base treatment tank 15, the outlet of the primary sludge pump 219 and the outlet of the secondary sludge pump 220, the outlet of the sludge thickener 71 is connected with the filter press 73 through the thickener sludge lift pump 72, and the upper part of the sludge thickener 71 is provided with a drain valve 75 and is connected to the mixed wastewater regulating tank 21 through the drain valve 75; a liquid receiving tank 74 is arranged below the filtrate outlet of the filter press 73, and the liquid receiving tank 74 is connected with the mixed wastewater regulating tank 21.
The operation mode of the system is detailed as follows:
wastewater inlet: the thinning waste water is divided into five paths in total, wherein concentrated acid waste water enters a concentrated acid storage tank 11 through a factory pipe network, concentrated alkali waste water enters a concentrated alkali storage tank 13 through the factory pipe network, and fluorine-containing waste water, phosphorus-containing waste water, polishing waste water and the like enter a mixed waste water regulating tank 21.
Preparing materials and a solution: h 2SO4 is sent to a factory through an out-of-factory tank truck, and is discharged to an H 2SO4 storage tank 514 through an H 2SO4 acid discharge pump 513 for storage for standby; adding PAC solid powder into a PAC dispensing tank 51, starting an eleventh stirrer 54, preparing a solution with a certain proportion, lifting the solution to a PAC storage tank 53 through a PAC lifting pump 52, and storing for later use; the PAM solid powder is added into a PAM dispensing tank 59, a twelfth stirrer 512 is started, a solution with a certain proportion is prepared, and the solution is lifted to a PAM storage tank 511 through a PAM lifting pump 510 and stored for standby; adding caustic soda flakes into a NaOH dispensing tank 55, starting a thirteenth stirrer 58, preparing a solution with a certain proportion, lifting the solution to a NaOH storage tank 511 through a NaOH lifting pump 56, and storing for later use; the quicklime powder is discharged to a quicklime bin 41 through an off-plant tank truck, is sent to a lime milk pool 44 through a screw conveyor 43, is started up to prepare lime milk with a certain concentration, and is stored for standby.
The concentrated acid and concentrated alkali treatment flow comprises the following steps: the concentrated acid and the concentrated alkali wastewater in the factory enter a concentrated acid storage tank 11 and a concentrated alkali storage tank 13 respectively, and the two waste water streams are lifted to an acid-base treatment tank 15 by a concentrated acid lifting pump 12 and a concentrated alkali lifting pump 14, wherein the amount of the concentrated acid wastewater is large, and the mixed water is still acidic. At this time, the lime milk lift pump 46 is turned on, lime milk is added, the first stirrer 16 is turned on, the Roots blower 61 and the first aerator 611 are started, the concentrated acid, the concentrated alkali and the lime milk are sufficiently mixed, and after neutralization, all the waste water enters the sludge concentration tank 71 through the waste water lift pump 18.
The fluorine-containing wastewater treatment process comprises the following steps: the fluorine-containing wastewater and the phosphorus-containing wastewater in the factory enter a mixed wastewater regulating tank 21, a second aeration device 62 in the regulating tank regulates the water quality and the water quantity, then enter a first-stage pH regulating tank 23 through a mixed wastewater lifting pump 22, and meanwhile, lime emulsion enters the first-stage pH regulating tank 23 through a lime milk pump 46, and the mixing is completed under the action of a stirrer 225 and a third aeration device 63; the mixed wastewater automatically flows into the first-stage reaction tank 24 for full reaction, then the reaction product enters the first-stage coagulation tank 25, PAC coagulant is added, tiny aggregate particles are generated under the action of the fifth aeration device 65 and the fifth stirrer 228, then the wastewater enters the first-stage flocculation tank 26, the power of the fifth stirrer 228 is reduced, the aeration amount of the sixth aeration device 66 is reduced, so that tiny solid particles in the wastewater are gradually increased to complete flocculation, then the wastewater enters the first-stage sedimentation tank 27, and solid-liquid separation is completed in the first-stage sedimentation tank 27. To ensure that fluoride ions are sufficiently removed and the wastewater treatment effect, the effluent from the primary sedimentation tank 27 sequentially enters a secondary pH adjustment tank 28, a secondary reaction tank 29, a secondary coagulation tank 210, a secondary flocculation tank 211, a secondary sedimentation tank 212, and finally enters an intermediate water tank 213. The intermediate water tank 213 enters a sand filter 215 through a booster pump 214, the treated water is subjected to deep filtration through the sand filter 215, the turbidity of the water is reduced to below 1NTU, and then the water is stored in a clean water tank 216 and supplied to a factory through a clean water pump 217 for use. After the sand filter 215 is operated for a period of time (about 24 hours), the head loss is increased, at this time, the sand filter is backwashed, a backwash pump 218 is started to recover the effect of the sand filter, the backwash time is 5-10 minutes, and filtered effluent enters the mixed wastewater regulating tank 21. The sludge in the sludge hoppers of the primary sedimentation tank 27 and the secondary sedimentation tank 212 is sent to the sludge concentration tank 71 for concentration by the primary sludge pump 219 and the secondary sludge pump 210 at fixed time.
And (3) performing standard-reaching feasibility analysis on fluorine-containing wastewater treatment: the solubility product of CaF 2 in water is 2.7X10- -11, the characteristic that F - meets Ca 2＋ to form CaF 2 precipitate is utilized, ca (OH) 2 is added to form CaF 2 precipitate, the concentration of F - can reach 11.4mg/L theoretically, the concentration of fluoride ions in wastewater can reach 15mg/L stably after the treatment of a calcium precipitation method according to the existing engineering experience, and the stable defluorination can be realized by adopting a calcium-based neutralizer and a reactant.
And (3) waste gas washing flow: the concentrated acid waste water, the concentrated alkali waste water and the fluorine-containing waste water all contain certain volatile components, so the concentrated acid storage tank 11, the concentrated alkali storage tank 13, the acid-base treatment tank 15, the mixed waste water regulating tank 21 and the primary pH regulating tank 23 are all in a sealed design, an air outlet is reserved at the top, the five tanks are connected to an inlet of the waste gas washing tower 31 through a draught fan 32 by a connecting pipe 33, a packing layer is arranged in the waste gas washing tower 31, the bottom of the tower is connected with an interface at the upper part of the packing layer by a circulating alkali pump 34, and after the waste gas fully reacts with alkali liquor in the packing layer, steam-water separation is carried out by a tower top steam-water separator, and finally the waste gas is discharged.
An aeration system: the mixed wastewater regulating tank 21, the primary pH regulating tank 23, the primary reaction tank 24, the primary coagulation tank 25, the primary flocculation tank 26, the secondary pH regulating tank 28, the secondary reaction tank 29, the secondary coagulation tank 210, the secondary flocculation tank 211 and the concentrated acid and alkali treatment tank 15 are 10 water tanks in total, and aeration devices are arranged in all the water tanks, wherein the aeration intensity of the primary flocculation tank 26 and the secondary flocculation tank 210 is properly reduced so as to better form flocculation "alum blossom", and the subsequent precipitation is facilitated. The aeration system air supply is provided by a Roots blower 61, the Roots blower outlet is provided with a valve 612.
Waste residue treatment process: the sludge concentration tank 71 is composed of three parts, namely an acid-base treatment tank 15, a primary sedimentation tank 27 and a secondary sedimentation tank 212. The sludge concentration tank 71 adopts intermittent sludge discharge, the overall residence time is 10-12 hours, a drain valve 75 is arranged in the middle of the sludge concentration tank 71, after the sludge concentration tank is concentrated for a certain time, the drain valve 75 is opened, and supernatant fluid is discharged into the fluorine-containing wastewater regulating tank 21; sludge is precipitated in the sludge concentration tank 71. The precipitated sludge is lifted to an inlet of a filter press 73 by a sludge lifting pump 72, filtrate generated by filter pressing enters a liquid receiving tank 74, gravity flows into the mixed wastewater regulating tank 21 automatically, and filter residues generated by filter pressing are treated by the outward transportation of relevant units with qualification.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention in any way; any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modifications to equivalent embodiments using the methods and technical contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present invention, which do not depart from the technical solution of the present invention, still fall within the scope of the technical solution of the present invention.
Claims (1)
- A TFT-LCD glass thinning wastewater treatment system is characterized by comprising:a. an acid-base wastewater treatment part,The acid-base wastewater treatment part comprises a concentrated acid storage tank, a concentrated base storage tank and an acid-base treatment tank, wherein an inlet of the concentrated acid storage tank is used as a concentrated acid wastewater inlet, an inlet of the concentrated base storage tank is used as a concentrated base wastewater inlet, and an outlet of the concentrated acid storage tank and an outlet of the concentrated base storage tank are respectively connected to an inlet of the acid-base treatment tank;b. a mixed wastewater treatment part, wherein the mixed wastewater treatment part comprises a mixed wastewater treatment part,The mixed wastewater treatment part comprises a mixed wastewater regulating tank, a primary pH regulating tank, a primary reaction tank, a primary coagulation tank, a primary flocculation tank, a primary sedimentation tank, a secondary pH regulating tank, a secondary reaction tank, a secondary coagulation tank, a secondary flocculation tank, a secondary sedimentation tank, an intermediate water tank, a sand filter and a clean water tank which are sequentially communicated, wherein a clean water pump and a back flushing pump are respectively arranged at the outlet of the clean water tank, the back flushing pump is connected with the back flushing inlet of the sand filter, and the back flushing outlet of the sand filter is connected with the mixed wastewater regulating tank;c. an exhaust gas washing part, which is used for washing the exhaust gas,The waste gas washing part comprises a waste gas washing tower, a circulating alkali liquor pump and a draught fan; the top air outlets of the concentrated acid storage tank, the concentrated alkali storage tank, the acid-base treatment tank, the mixed wastewater regulating tank and the primary pH regulating tank are respectively connected with an inlet of a draught fan through connecting pipes, an outlet of the draught fan is connected with an air inlet of the waste gas washing tower, an inlet of the circulating alkali pump is connected with the bottom of the waste gas washing tower, and an outlet of the circulating alkali pump is connected with a spray pipe in the waste gas washing tower;d. a lime slurry preparation part,The lime slurry preparation part comprises a quicklime storage bin, a dust remover is arranged at the top of the quicklime storage bin, a screw conveyor and a lime milk pool are sequentially arranged at the bottom of the quicklime storage bin, a lime milk conveying pump is arranged at the outlet of the lime milk pool, and the outlet of the lime milk conveying pump is respectively connected with a primary pH regulating pool, a secondary pH regulating pool and an acid-base treatment pool;e. a medicine preparation storage part,The medicament preparation storage part comprises a PAC dispensing tank, a PAM dispensing tank, a NaOH dispensing tank and an H 2SO4 storage tank;The bottom of the PAC dispensing pool is connected with a PAC storage tank through a PAC lifting pump, and the outlet of the PAC storage tank is respectively connected with a primary coagulation pool and a secondary coagulation pool;The bottom of the PAM dispensing tank is connected with a PAM storage tank through a PAM lifting pump, and the outlet of the PAM storage tank is respectively connected with a primary flocculation tank and a secondary flocculation tank;the bottom of the NaOH dispensing tank is connected with a NaOH storage tank through a NaOH lifting pump, and the outlet of the NaOH storage tank is respectively connected with a primary pH regulating tank and a secondary pH regulating tank;the outlet of the H 2SO4 storage tank is connected with the middle water tank;f. An aeration part is arranged on the bottom of the aeration tank,The aeration part comprises a group of aeration devices which are respectively arranged in an acid-base treatment tank, a mixed wastewater regulating tank, a primary pH regulating tank, a primary reaction tank, a primary coagulation tank, a primary flocculation tank, a secondary pH regulating tank, a secondary reaction tank, a secondary coagulation tank and a secondary flocculation tank; the inlets of the aeration devices are respectively connected to the Roots blower through air pipes;g. A waste residue treatment part, a waste residue treatment part and a waste residue treatment part,The waste residue treatment part comprises a sludge concentration tank, a concentration tank sludge lifting pump and a filter press, wherein an inlet of the sludge concentration tank is respectively connected with an acid-base treatment tank outlet, a primary sedimentation tank sludge outlet and a secondary sedimentation tank sludge outlet, the sludge concentration tank outlet is connected with the filter press through the concentration tank sludge lifting pump, and the middle part of the sludge concentration tank is connected to the mixed wastewater regulating tank; a liquid receiving tank is arranged below the filtrate outlet of the filter press and is connected with a mixed wastewater regulating tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536787.8A CN109437438B (en) | 2018-12-15 | 2018-12-15 | TFT-LCD glass thinning wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536787.8A CN109437438B (en) | 2018-12-15 | 2018-12-15 | TFT-LCD glass thinning wastewater treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109437438A CN109437438A (en) | 2019-03-08 |
| CN109437438B true CN109437438B (en) | 2024-05-10 |
Family
ID=65559075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811536787.8A Active CN109437438B (en) | 2018-12-15 | 2018-12-15 | TFT-LCD glass thinning wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109437438B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558248A (en) * | 2020-04-28 | 2020-08-21 | 苏州晋昌胶粘制品有限公司 | Cleaning device of high-efficiency filter recovery system |
| CN112174439A (en) * | 2020-10-14 | 2021-01-05 | 上海三邦水处理技术有限公司 | LED chip manufacturing industry wastewater treatment engineering process |
| CN114538664A (en) * | 2022-03-16 | 2022-05-27 | 芜湖东旭光电科技有限公司 | Method for recycling glass substrate cleaning wastewater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951839A (en) * | 2006-11-17 | 2007-04-25 | 辽宁三和环境工程有限公司 | Method and apparatus for treating acid and alkaline waste water |
| CN200967783Y (en) * | 2006-11-17 | 2007-10-31 | 辽宁三和环境工程有限公司 | Acid alkali waste water treatment system |
| CN105502730A (en) * | 2015-11-30 | 2016-04-20 | 湖北宜化集团有限责任公司 | Physicochemical treatment method for mixed type chemical fertilizer production wastewater |
| CN106746113A (en) * | 2016-12-18 | 2017-05-31 | 江苏中电创新环境科技有限公司 | A kind of photovoltaic industry fluoride waste resource and the technique and system of reuse |
| WO2017161918A1 (en) * | 2016-03-22 | 2017-09-28 | 新疆国力源投资有限公司 | Straw pulping wastewater treatment system |
| CN209383556U (en) * | 2018-12-15 | 2019-09-13 | 深圳市凯盛科技工程有限公司 | TFT-LCD glass thinning waste water treatment system |
-
2018
- 2018-12-15 CN CN201811536787.8A patent/CN109437438B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951839A (en) * | 2006-11-17 | 2007-04-25 | 辽宁三和环境工程有限公司 | Method and apparatus for treating acid and alkaline waste water |
| CN200967783Y (en) * | 2006-11-17 | 2007-10-31 | 辽宁三和环境工程有限公司 | Acid alkali waste water treatment system |
| CN105502730A (en) * | 2015-11-30 | 2016-04-20 | 湖北宜化集团有限责任公司 | Physicochemical treatment method for mixed type chemical fertilizer production wastewater |
| WO2017161918A1 (en) * | 2016-03-22 | 2017-09-28 | 新疆国力源投资有限公司 | Straw pulping wastewater treatment system |
| CN106746113A (en) * | 2016-12-18 | 2017-05-31 | 江苏中电创新环境科技有限公司 | A kind of photovoltaic industry fluoride waste resource and the technique and system of reuse |
| CN209383556U (en) * | 2018-12-15 | 2019-09-13 | 深圳市凯盛科技工程有限公司 | TFT-LCD glass thinning waste water treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109437438A (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109437438B (en) | TFT-LCD glass thinning wastewater treatment system | |
| CN201433144Y (en) | Desulfurization waste water treatment recycling device | |
| CN101492039B (en) | Environmental protection cleaning method and station of chemical industry operation storage and transportation device | |
| CN110963598A (en) | Treatment method for uranium conversion alkaline fluorine-containing wastewater | |
| CN103058408B (en) | Power generation industries waste water recycling device method and treatment for reuse system | |
| CN107149858A (en) | Circulation for plasma fume treatment integrated apparatus | |
| CN205442921U (en) | Integration ecological water matter purifier | |
| CN107055885A (en) | A kind of Desulphurization for Coal-fired Power Plant waste water reclaiming system and method for work | |
| KR101342551B1 (en) | The Equipment of Reduction Sludge Dewatering Water Content Rate to Total Solids Improvement in Unity Sludge Tank and Belt Press Filter on the Upper and Lower Percolate using High Pressure Cleaning Water Supply | |
| CN206561504U (en) | Concrete gravel effluent cycle recovery system | |
| CN112321029A (en) | Continuous casting turbid circulating water treatment system and process | |
| CN209383556U (en) | TFT-LCD glass thinning waste water treatment system | |
| CN108408989A (en) | Water treatment facilities in aluminum alloy pattern plate high-pressure cleaning system | |
| CN211871651U (en) | Liquid crystal display panel manufacturing plant fluorine-containing wastewater treatment device | |
| RU2328454C2 (en) | Water purification station | |
| CN104402142B (en) | A kind of method of sewage disinfection treatment in hydrogen dioxide solution production by anthraquinone process industry | |
| US9650266B2 (en) | Method of treating suspended solids and heavy metal ions in sewage | |
| CN203653367U (en) | Hydrochloric acid wastewater treatment equipment | |
| CN209065501U (en) | A kind of desulfurization wastewater treatment system | |
| CN206881469U (en) | Circulation for plasma fume treatment integrated apparatus | |
| CN107694202B (en) | Benzyl benzoate oil residue treatment device and method | |
| CN207002474U (en) | A kind of middle concentration ammonia nitrogen wastewater pretreatment unit | |
| CN206512080U (en) | A kind of processing equipment for recycling of the sludge containing oil grinding | |
| CN211644896U (en) | Waste liquid treatment system | |
| CN208087368U (en) | A kind of efficient sedimentation tank applied to sewage treatment plant's advanced treating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518054 5 / F, east block, beiyihai Plaza, Chuangye Road, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Kaisheng Technology Engineering Co.,Ltd. Address before: 518054 5 / F, east block, beiyihai Plaza, Chuangye Road, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN TRIUMPH TECHNOLOGY ENGINEERING Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |