CN109437438A - TFT-LCD glass thinning waste water treatment system - Google Patents
TFT-LCD glass thinning waste water treatment system Download PDFInfo
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- CN109437438A CN109437438A CN201811536787.8A CN201811536787A CN109437438A CN 109437438 A CN109437438 A CN 109437438A CN 201811536787 A CN201811536787 A CN 201811536787A CN 109437438 A CN109437438 A CN 109437438A
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- 239000011521 glass Substances 0.000 title claims abstract description 14
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 13
- 239000002351 wastewater Substances 0.000 claims abstract description 62
- 239000002253 acid Substances 0.000 claims abstract description 59
- 238000003860 storage Methods 0.000 claims abstract description 58
- 238000012545 processing Methods 0.000 claims abstract description 49
- 239000010786 composite waste Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005406 washing Methods 0.000 claims abstract description 23
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 14
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 14
- 239000004571 lime Substances 0.000 claims abstract description 14
- 238000010563 solid-state fermentation Methods 0.000 claims abstract description 9
- 230000002378 acidificating effect Effects 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims abstract description 8
- 239000003814 drug Substances 0.000 claims abstract description 8
- 238000002360 preparation method Methods 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 61
- 230000003750 conditioning effect Effects 0.000 claims description 61
- 239000010802 sludge Substances 0.000 claims description 40
- 239000002585 base Substances 0.000 claims description 30
- 238000005189 flocculation Methods 0.000 claims description 28
- 230000016615 flocculation Effects 0.000 claims description 28
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 25
- 238000005276 aerator Methods 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 238000001556 precipitation Methods 0.000 claims description 15
- 239000000920 calcium hydroxide Substances 0.000 claims description 14
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 14
- 230000001112 coagulating effect Effects 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 13
- 238000005345 coagulation Methods 0.000 claims description 11
- 230000015271 coagulation Effects 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 235000012255 calcium oxide Nutrition 0.000 claims description 8
- 238000011001 backwashing Methods 0.000 claims description 6
- 239000008267 milk Substances 0.000 claims description 5
- 210000004080 milk Anatomy 0.000 claims description 5
- 235000013336 milk Nutrition 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 4
- 239000013505 freshwater Substances 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 14
- 239000002699 waste material Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 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
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 229920002401 polyacrylamide Polymers 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 239000011575 calcium Substances 0.000 description 6
- 229910001634 calcium fluoride Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 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
- 230000001376 precipitating effect Effects 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000005416 organic matter 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
- 239000002244 precipitate Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 150000004645 aluminates Chemical class 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 229940069978 calcium supplement Drugs 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
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002562 thickening agent Substances 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)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention discloses TFT-LCD glass thinning waste water treatment system, comprising: a, acidic and alkaline waste water processing unit, b, composite waste processing unit, c, exhaust gas washing section, d, lime slurry preparation portion, e, medicament prepare storage unit, f, aeration portion, g, Solid state fermentation portion；Five road waste water of TFT-LCD glass thinning production process Zhong (concentrated acid waste water, concentrated base waste water, fluoride waste, phosphorus-containing wastewater, polishing waste water) respectively enters corresponding processing unit classification processing, and each processing unit cooperates composition organically entity, and the waste water of production process is made to accomplish to meet the function of recycling completely；Waste water can meet the water standard of plant area's production multiplexing after processing, realize closed cycle, save and largely use water, respond the target of national energy-saving environmental protection.
Description
Technical field
The present invention relates to glass thinning technical field of waste water processing, specifically a kind of TFT-LCD glass thinning wastewater treatment
System.
Background technique
TFT-LCD glass is mainly used in the electronic industries such as capacitive screen of mobile phone, liquid crystal after being thinned, and has huge city
Field prospect.In enterprise production process, a certain amount of industrial wastewater will be generated.Waste water is generated mainly from etching pretreatment cleaning
Alkaline waste water, clean the fluoride waste of generation, abrasive waste water, phosphorus-containing wastewater, acid waste water etc. after etching and etching；Cooling follows
Density wastewater and emission-control equipment waste water that loop system draining, pure water system generate etc..In waste water containing a large amount of acid, alkali,
Phosphate, fluoride, suspended matter and a small amount of organic matter.To make discharge of wastewater meet the requirement of environmental protection, sustainable development mesh is realized
Mark, need to be arranged sewage treatment facility, it is ensured that project construction waste water qualified discharge after processing.Currently, above-mentioned waste water has no maturation
Treatment process.
Summary of the invention
The purpose of the present invention is to provide TFT-LCD glass thinning waste water treatment system, which can be to TFT-LCD glass
Glass is thinned the waste water containing a large amount of acid, alkali, phosphate, fluoride, suspended matter and a small amount of organic matter generated in production and carries out
Processing guarantees that discharge of wastewater is up to standard.
The technical solution adopted by the present invention to solve the technical problems is:
TFT-LCD glass thinning waste water treatment system, comprising:
A, acidic and alkaline waste water processing unit,
Acidic and alkaline waste water processing unit includes concentrated acid storage tank, concentrated base storage tank and soda acid processing pond, and concentrated acid reservoir inlet is as concentrated acid waste water
Entrance, concentrated base reservoir inlet are respectively connected at soda acid as concentrated base waterwater entrance, concentrated acid outlet and concentrated base outlet
Manage pond entrance；
B, composite waste processing unit,
Composite waste processing unit includes to be sequentially connected logical composite waste conditioning tank, level-one pH conditioning tank, first order reaction pond, level-one
Coagulating basin, level-one flocculation basin, first stage precipitation tank, second level pH conditioning tank, second order reaction pond, two-stage coagulation pond, second level flocculation basin, two
Grade sedimentation basin, intermediate pool, sand filter and clear water reserviors, clear water reserviors outlet are respectively set fresh water pump and backwashing pump, recoil
It washes pump to be connected with the backwash entrance of sand filter, the backwash outlet connection composite waste conditioning tank of sand filter；
C, exhaust gas washing section,
Exhaust gas washing section includes exhaust gas washing tower, circulation alkali liquid pump and air-introduced machine；The concentrated acid storage tank, concentrated base storage tank, at soda acid
The top gas outlet for managing pond, composite waste conditioning tank and level-one pH conditioning tank connects air-introduced machine entrance by connecting tube respectively,
The air inlet of air-introduced machine outlet connection exhaust gas washing tower, circulation alkali liquor pump intake connect with exhaust gas washing tower tower bottom, circulation alkali liquor
Pump discharge connects the spray tube in exhaust gas washing tower；
D, lime slurry preparation portion,
Lime slurry preparation portion includes quick lime storage warehouse, is equipped with deduster at the top of quick lime storage warehouse, bottom sets gradually spiral shell
Conveyer and milk of lime pond are revolved, the outlet of milk of lime pond is equipped with Lime Milk Transfer Pump, and Lime Milk Transfer Pump outlet is separately connected level-one
PH conditioning tank, second level pH conditioning tank and soda acid processing pond；
E, medicament prepares storage unit,
It includes that PAC make up a prescription pond, the NaOH of pond, PAM that make up a prescription makes up a prescription pond and H that medicament, which prepares storage unit,2SO4Storage tank；
PAC makes up a prescription bottom of pond portion by PAC elevator pump connection PAC storage tank, and PAC outlet is separately connected level-one coagulating basin and second level
Coagulating basin；
PAM makes up a prescription bottom of pond portion by PAM elevator pump connection PAM storage tank, and PAM outlet is separately connected level-one flocculation basin and second level
Flocculation basin；
NaOH makes up a prescription bottom of pond portion by NaOH elevator pump connection NaOH storage tank, and NaOH outlet is separately connected level-one pH conditioning tank
With second level pH conditioning tank；
H2SO4Outlet connects intermediate pool；
F, aeration portion,
Aeration portion includes one group of aerator, and aerator is respectively arranged on soda acid processing pond, composite waste conditioning tank, level-one pH tune
Save pond, first order reaction pond, level-one coagulating basin, level-one flocculation basin, second level pH conditioning tank, second order reaction pond, two-stage coagulation pond and two
Grade flocculation basin；Each aerator entrance passes through tracheae respectively and is connected to roots blower；
G, Solid state fermentation portion,
Solid state fermentation portion includes sludge concentration tank, concentration basin sludge lifting pump and filter press, and sludge concentration tank entrance is separately connected
The outlet of soda acid processing pond, first stage precipitation tank sludge outlet and second-level settling pond sludge outlet, sludge concentration tank outlet pass through dense
Contracting pond sludge lifting pump connects filter press, is connected to composite waste conditioning tank in the middle part of sludge concentration tank；The filtrate (liquid of filter press
Lower section is equipped with and connects liquid bath, connects liquid bath and is connected with composite waste conditioning tank.
The beneficial effects of the present invention are:
One, five road waste water of TFT-LCD glass thinning production process Zhong is (concentrated acid waste water, concentrated base waste water, fluoride waste, phosphorous useless
Water, polishing waste water) corresponding processing unit classification processing is respectively enterd, and each processing unit cooperates composition and organically unifies
Body makes the waste water of production process accomplish to meet the function of recycling completely.
Two, it first uses milk of lime to adjust wastewater pH to 8~9 fluoride waste and phosphorus-containing wastewater, and appropriate chlorination is added
Calcium supplements calcium ion, then solidifying, formation calcirm-fluoride, calcium hydroxy phosphate, aluminum phosphate indissoluble are helped by aluminate coagulating and polyacrylamide
Fine suspension, colloidal substance in object, with waste water, form alumen ustum, the sedimentation separation in sedimentation basin, through two-stage precipitation process,
Can ensure that waste water reach receive pipe standards after be discharged into sewage treatment plant's pipe network；
Three, the feasibility up to standard about fluoride wastewater treatment, CaF2Solubility product in water is 2.7 × 10-11, utilize F-Meet Ca2+
Form CaF2The characteristic of precipitating, using addition Ca (OH)2It is allowed to form CaF2It precipitates, theoretically F-Concentration can achieve 11.4mg/
L, according to existing engineering experience, after calcium precipitation method processing, the fluorinion concentration of waste water can stably reach 15mg/L, using in calcium base
With agent and reactant, it can be achieved that stablizing fluorine removal.
Four, in waste water treatment process, waste water has certain volatility, therefore concentrated acid storage tank, concentrated base storage tank, soda acid are handled
Pond, composite waste conditioning tank, level-one pH conditioning tank are all made of closed structure, and pipeline is arranged by the exhaust gas in each pond and passes through pipe network
It send to exhaust gas washing tower, exhaust gas is washed using lye, ensure that exhaust gas harmless emission.
Five, in wastewater treatment process, soda acid processing pond, first stage precipitation tank, second-level settling pond generate a large amount of waste residue and dirt
Mud, it is final to transport outward after sludge concentration tank is concentrated, then through filter press filters pressing at filter cake；
Six, waste water can meet the water standard of plant area's production multiplexing after processing, realize closed cycle, save and largely use water, ring
Answer the target of national energy-saving environmental protection.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is system schematic of the invention；
Fig. 2 is the schematic diagram of acidic and alkaline waste water processing unit of the present invention；
Fig. 3 is the schematic diagram of composite waste processing unit of the present invention；
Fig. 4 is the schematic diagram of exhaust gas washing section of the present invention；
Fig. 5 is the schematic diagram in lime slurry preparation of the present invention portion；
Fig. 6 is the schematic diagram that medicament of the present invention prepares storage unit；
Fig. 7 is the schematic diagram in Solid state fermentation portion of the present invention.
Specific embodiment
As shown in Figure 1, the present invention provides TFT-LCD glass thinning waste water treatment system, comprising:
A, acidic and alkaline waste water processing unit,
As shown in connection with fig. 2, acidic and alkaline waste water processing unit includes concentrated acid storage tank 11, concentrated base storage tank 13 and soda acid processing pond 15, concentrated acid storage
Tank entrance 11 is used as concentrated acid waterwater entrance, and 12 entrance of concentrated base storage tank passes through dense as concentrated base waterwater entrance, the outlet of concentrated acid storage tank 11
Sour elevator pump 12 is connected to 15 entrance of soda acid processing pond, and the outlet of concentrated base storage tank 13 is connected to soda acid processing by concentrated base elevator pump 14
15 entrance of pond；The first blender 16 is equipped in soda acid processing pond 15；
B, composite waste processing unit,
As shown in connection with fig. 3, composite waste processing unit includes to be sequentially connected logical composite waste conditioning tank 21, level-one pH conditioning tank
23, first order reaction pond 24, level-one coagulating basin 25, level-one flocculation basin 26, first stage precipitation tank 27, second level pH conditioning tank 28, second level are anti-
Answer pond 29, two-stage coagulation pond 210, second level flocculation basin 211, second-level settling pond 212, intermediate pool 213, sand filter 215 and clear
Pond 216；Composite waste elevator pump 22, intermediate pool 213 are equipped between composite waste conditioning tank 21 and level-one pH conditioning tank 23
Intermediate water elevator pump 214 is equipped between sand filter 215；Fresh water pump 217 and backwashing pump is respectively set in the outlet of clear water reserviors 216
218, backwashing pump 218 is connected with the backwash entrance of sand filter 215, the backwash outlet connection composite waste of sand filter 215
Conditioning tank 21；
Level-one sludge pump 219,219 entrance of level-one sludge pump and 27 sludge outlet of first stage precipitation tank is arranged in 27 bottom of first stage precipitation tank
It is connected, level-one import guide shell 221 and level-one mud scraper 222 is equipped in first stage precipitation tank 27；
212 bottom of second-level settling pond is arranged secondary sludge and pumps 220, and secondary sludge pumps 220 entrances and goes out with 212 sludge of second-level settling pond
Mouth is connected, and secondary inlet guide shell 223 and second level mud scraper 224 are equipped in second-level settling pond 212；
Level-one pH conditioning tank 23, first order reaction pond 24, level-one coagulating basin 25, level-one flocculation basin 26, second level pH conditioning tank 28, second level
Reaction tank 29, two-stage coagulation pond 210, further respectively have in second level flocculation basin 211 second blender 225, third blender 226,
4th blender 227, the 5th blender 228, the 6th blender 229, the 7th blender 230, the 8th blender 231 are stirred with the 9th
Mix machine 232；
C, exhaust gas washing section,
As shown in connection with fig. 4, exhaust gas washing section includes exhaust gas washing tower 31, circulation alkali liquid pump 34 and air-introduced machine 32；The concentrated acid storage
Tank 11, concentrated base storage tank 13, soda acid processing pond 15, composite waste conditioning tank 21 and level-one pH conditioning tank 23 top gas outlet point
Not Tong Guo connecting tube 33 connect 32 entrance of air-introduced machine, air-introduced machine 32 outlet connection exhaust gas washing tower 31 air inlet, circulation alkali liquor
Pump 34 entrances connect with 31 tower bottom of exhaust gas washing tower, circulation alkali liquid pump 34 outlet connection exhaust gas washing tower 31 in spray tube；
D, lime slurry preparation portion,
As shown in connection with fig. 5, lime slurry preparation portion includes quick lime storage warehouse 41, is equipped with deduster at the top of quick lime storage warehouse 41
42, bottom sets gradually screw conveyor 43 and milk of lime pond 44, and the outlet of milk of lime pond 44 is equipped with Lime Milk Transfer Pump 46, lime
The newborn outlet of delivery pump 46 is separately connected level-one pH conditioning tank 23, second level pH conditioning tank 28 and soda acid processing pond 15；Milk of lime pond
The tenth blender 45 is equipped in 44；
E, medicament prepares storage unit,
As shown in connection with fig. 6, it includes that PAC make up a prescription pond 59, the NaOH of pond 51, PAM that make up a prescription makes up a prescription pond 55 and H that medicament, which prepares storage unit,2SO4
Storage tank 514；
PAC makes up a prescription 51 bottom of pond by the connection PAC storage tank 53 of PAC elevator pump 52, and the outlet of PAC storage tank 53 is separately connected level-one coagulation
Pond 25 and two-stage coagulation pond 210；PAC makes up a prescription, and pond 51 is interior to be equipped with the 11st blender 54；
PAM makes up a prescription 59 bottom of pond by the connection PAM storage tank 511 of PAM elevator pump 510, and the outlet of PAM storage tank 511 is separately connected level-one
Flocculation basin 26 and second level flocculation basin 211；PAM makes up a prescription, and pond 59 is interior to be equipped with the 12nd blender 512；
NaOH makes up a prescription 55 bottom of pond by the connection NaOH storage tank 57 of NaOH elevator pump 56, and the outlet of NaOH storage tank 57 is separately connected level-one
PH conditioning tank 23 and second level pH conditioning tank 28；NaOH makes up a prescription, and pond 55 is interior to be equipped with the 13rd blender 58；
H2SO4The outlet of storage tank 514 connection intermediate pool 213；H2SO4514 entrance of storage tank passes through H2SO4The reception of unload acid pump 513 comes from
The H that tank car dumps2SO4；
F, aeration portion,
Aeration portion includes one group of aerator, that is, the first aerator 611 being set in soda acid processing pond 15, and is respectively arranged on
Level-one pH conditioning tank 23, first order reaction pond 24, level-one coagulating basin 25, level-one flocculation basin 26, second level pH conditioning tank 28, second order reaction
Pond 29, two-stage coagulation pond 210 are respectively equipped with the second aerator 63, third aerator the 64, the 4th in second level flocculation basin 211
Aerator 65, the 5th aerator 66, the 6th aerator 67, the 7th aerator 68, the 8th aerator 69 and the 9th
Aerator 610；The outlet of roots blower 61 setting valve 612, the outlet of valve 612 connect each aerator by tracheae and enter
Mouthful；
G, Solid state fermentation portion,
As shown in connection with fig. 7, Solid state fermentation portion includes sludge concentration tank 71, concentration basin sludge lifting pump 72 and filter press 73, sludge
71 entrance of concentration basin is separately connected 220 outlet of the outlet of soda acid processing pond 15, the outlet of level-one sludge pump 219 and secondary sludge pump,
The outlet of sludge concentration tank 71 connects filter press 73 by concentration basin sludge lifting pump 72, and 71 top of sludge concentration tank is equipped with drain valve
75, and composite waste conditioning tank 21 is connected to by drain valve 75；It is equipped with below the filtrate (liquid of filter press 73 and connects liquid bath 74, connect
Liquid bath 74 is connected with composite waste conditioning tank 21.
Details are as follows for the method for operation of this system:
Influent waste water: being thinned waste water and amount to five tunnels, and wherein concentrated acid waste water enters concentrated acid storage tank 11, concentrated base waste water warp through plant area's pipe network
Plant area's pipe network enters concentrated base storage tank 13, and fluoride waste, phosphorus-containing wastewater, polishing waste water etc. enter composite waste conditioning tank 21.
Material and solution are prepared: through off-site tank car by H2SO4It send to plant area, through H2SO4Unload acid pump 513 is unloaded to H2SO4Storage
Tank 514, stores for future use；PAC solid powder be added PAC make up a prescription pond 51 and open the 11st blender 54, prepare it is proportional
Solution, be promoted to PAC storage tank 53 through PAC elevator pump 52, store for future use；PAM solid powder, which is added PAM and makes up a prescription, pond 59 and to be opened
12nd blender 512 is configured to a certain proportion of solution, is promoted to PAM storage tank 511 through PAM elevator pump 510, stores for future use；
Piece alkali be added NaOH make up a prescription pond 55 and open the 13rd blender 58, a certain proportion of solution is configured to, through NaOH elevator pump 56
It is promoted to NaOH storage tank 511, is stored for future use；Quick lime powder is unloaded through tank car outside factory to quick lime storehouse 41, and through screw conveyor
43 send to milk of lime pond 44 and open the tenth blender 45, are configured to certain density milk of lime, store for future use.
Concentrated acid concentrated base process flow: plant area's concentrated acid, concentrated base waste water respectively enter concentrated acid storage tank 11, concentrated base storage tank 13, through dense
Sour elevator pump 12, concentrated base elevator pump 14 are by two strands of waste water liftings to soda acid processing pond 15, and wherein concentrated acid wastewater flow rate is bigger than normal, through mixing
Water afterwards is still in acid.At this point, opening milk of lime elevator pump 46, milk of lime is added, meanwhile, the first blender 16 is opened, is opened
Dynamic roots blower 61 and the first aerator 611, concentrated acid, concentrated base, milk of lime are sufficiently mixed, after neutralization, whole waste water
Enter sludge concentration tank 71 by waste water lifting pump 18.
Fluoride wastewater treatment process: plant area's fluoride waste, phosphorus-containing wastewater enter composite waste conditioning tank 21, in conditioning tank
Two aerators 62 after carrying out water quality and quantity adjusting, enter level-one pH conditioning tank 23 through composite waste elevator pump 22, meanwhile, stone
Grey lotion enters level-one pH conditioning tank 23 through milk of lime pump 46, under the action of agitated machine 225 and third aerator 63, completes
Mixing；Waste water gravity flow after the completion of being mixed enters first order reaction pond 24 and sufficiently reacts, and following reaction generates product and enters level-one
Coagulating basin 25, while PAC coagulant is added, under the action of the 5th aerator 65 and the 5th blender 228, generate small mixed
Solidifying body particle, subsequent waste water enter level-one flocculation basin 26, and 228 power of the 5th blender reduces, 66 aeration quantity of the 6th aerator
It reduces, is gradually increased the minute solid particles in waste water, complete flocculation, subsequently enter first stage precipitation tank 27, precipitated in level-one
It completes to be separated by solid-liquid separation in pond 27.To ensure that fluorine ion is sufficiently removed and the treatment effect of waste water, first stage precipitation tank 27 go out
Water sequentially enters second level pH conditioning tank 28, second order reaction pond 29, two-stage coagulation pond 210, second level flocculation basin 211, second-level settling pond
212, finally enter intermediate pool 213.The pressurized pump 214 of intermediate pool 213 enters sand filter 215, will handle through sand filter 215
The water crossed carries out depth-type filtration, by the haze reduction of water to 1NTU hereinafter, then storing to clear water reserviors 216, passes through fresh water pump 217
Plant area is supplied to use.After operation a period of time (about for 24 hours), head loss increases sand filter 215, needs to recoil to it at this time
It washes, opens backwashing pump 218 to restore its effect, 5 ~ 10min of backwashing time, filtered water outlet enters composite waste and adjusts
Pond 21.Sludge timing in 212 bucket of first stage precipitation tank 27 and second-level settling pond is sent through level-one sludge pump 219, second level 210 to dirt
Mud thickener 71 is concentrated.
Fluoride wastewater treatment feasibility analysis up to standard: CaF2Solubility product in water is 2.7 × 10-11, utilize F-Meet Ca2+
Form CaF2The characteristic of precipitating, using addition Ca (OH)2It is allowed to form CaF2It precipitates, theoretically F-Concentration can achieve 11.4mg/
L, according to existing engineering experience, after calcium precipitation method processing, the fluorinion concentration of waste water can stably reach 15mg/L using in calcium base
With agent and reactant, it can be achieved that stablizing fluorine removal.
Exhaust gas washing flow: concentrated acid waste water, concentrated base waste water contain certain volatile component in fluoride waste, therefore dense
Acid storage tank 11, concentrated base storage tank 13, soda acid processing pond 15, composite waste conditioning tank 21, level-one pH conditioning tank 23, this five ponds are complete
Portion uses Seal Design, and top reserves gas outlet, is connected to 31 import of exhaust gas washing tower, exhaust gas via air-introduced machine 32 through connecting tube 33
Packing layer is set inside scrubbing tower 31, and tower bottom is connect through circulation alkali liquid pump 34 with packing layer upper interface, and exhaust gas is in packing layer
After sufficiently reacting with lye, steam-water separation, last outlet are carried out through tower top steam-water separator.
Aerating system: composite waste conditioning tank 21, level-one pH conditioning tank 23, first order reaction pond 24, level-one coagulating basin 25, one
Grade flocculation basin 26, second level pH conditioning tank 28, second order reaction pond 29, two-stage coagulation pond 210, second level flocculation basin 211, at concentrated acid concentrated base
Pond 15 is managed, amounts to 10 ponds, is respectively provided with aerator in each pond, wherein level-one flocculation basin 26, second level flocculation basin 210 are aerated
Intensity suitably reduces, more preferably to form flocculation " alumen ustum ", more conducively post precipitation.Aerating system gas supply is mentioned by roots blower 61
For roots blower outlet sets valve 612.
Solid state fermentation process: 71 water of sludge concentration tank consists of three parts, respectively soda acid processing pond 15, level-one precipitating
Pond 27, second-level settling pond 212.Sludge concentration tank 71 uses interval spoil disposal, 10 ~ 12h of total residence time, in sludge concentration tank 71
Portion be arranged drain valve 75, it is to be concentrated after a certain period of time, open drain valve 75, supernatant is discharged into fluoride waste conditioning tank 21；It is dirty
Mud is precipitated in sludge concentration tank 71.Precipitating sludge is promoted to 73 entrance of filter press, the filtrate that filters pressing generates by sludge lifting pump 72
Enter composite waste conditioning tank 21 into connecing liquid bath 74, then through flow by gravity, the filter residue that filters pressing generates is through having qualified correlation
Unit outward transport disposition.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, anything that does not depart from the technical scheme of the invention according to the technical essence of the invention do above embodiments
Any simple modification, equivalent replacement, equivalence changes and modification, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (1)
1.TFT-LCD glass thinning waste water treatment system characterized by comprising
A, acidic and alkaline waste water processing unit,
Acidic and alkaline waste water processing unit includes concentrated acid storage tank, concentrated base storage tank and soda acid processing pond, and concentrated acid reservoir inlet is as concentrated acid waste water
Entrance, concentrated base reservoir inlet are respectively connected at soda acid as concentrated base waterwater entrance, concentrated acid outlet and concentrated base outlet
Manage pond entrance；
B, composite waste processing unit,
Composite waste processing unit includes to be sequentially connected logical composite waste conditioning tank, level-one pH conditioning tank, first order reaction pond, level-one
Coagulating basin, level-one flocculation basin, first stage precipitation tank, second level pH conditioning tank, second order reaction pond, two-stage coagulation pond, second level flocculation basin, two
Grade sedimentation basin, intermediate pool, sand filter and clear water reserviors, clear water reserviors outlet are respectively set fresh water pump and backwashing pump, recoil
It washes pump to be connected with the backwash entrance of sand filter, the backwash outlet connection composite waste conditioning tank of sand filter；
C, exhaust gas washing section,
Exhaust gas washing section includes exhaust gas washing tower, circulation alkali liquid pump and air-introduced machine；The concentrated acid storage tank, concentrated base storage tank, at soda acid
The top gas outlet for managing pond, composite waste conditioning tank and level-one pH conditioning tank connects air-introduced machine entrance by connecting tube respectively,
The air inlet of air-introduced machine outlet connection exhaust gas washing tower, circulation alkali liquor pump intake connect with exhaust gas washing tower tower bottom, circulation alkali liquor
Pump discharge connects the spray tube in exhaust gas washing tower；
D, lime slurry preparation portion,
Lime slurry preparation portion includes quick lime storage warehouse, is equipped with deduster at the top of quick lime storage warehouse, bottom sets gradually spiral shell
Conveyer and milk of lime pond are revolved, the outlet of milk of lime pond is equipped with Lime Milk Transfer Pump, and Lime Milk Transfer Pump outlet is separately connected level-one
PH conditioning tank, second level pH conditioning tank and soda acid processing pond；
E, medicament prepares storage unit,
It includes that PAC make up a prescription pond, the NaOH of pond, PAM that make up a prescription makes up a prescription pond and H that medicament, which prepares storage unit,2SO4Storage tank；
PAC makes up a prescription bottom of pond portion by PAC elevator pump connection PAC storage tank, and PAC outlet is separately connected level-one coagulating basin and second level
Coagulating basin；
PAM makes up a prescription bottom of pond portion by PAM elevator pump connection PAM storage tank, and PAM outlet is separately connected level-one flocculation basin and second level
Flocculation basin；
NaOH makes up a prescription bottom of pond portion by NaOH elevator pump connection NaOH storage tank, and NaOH outlet is separately connected level-one pH conditioning tank
With second level pH conditioning tank；
H2SO4Outlet connects intermediate pool；
F, aeration portion,
Aeration portion includes one group of aerator, and aerator is respectively arranged on soda acid processing pond, composite waste conditioning tank, level-one pH tune
Save pond, first order reaction pond, level-one coagulating basin, level-one flocculation basin, second level pH conditioning tank, second order reaction pond, two-stage coagulation pond and two
Grade flocculation basin；Each aerator entrance passes through tracheae respectively and is connected to roots blower；
G, Solid state fermentation portion,
Solid state fermentation portion includes sludge concentration tank, concentration basin sludge lifting pump and filter press, and sludge concentration tank entrance is separately connected
The outlet of soda acid processing pond, first stage precipitation tank sludge outlet and second-level settling pond sludge outlet, sludge concentration tank outlet pass through dense
Contracting pond sludge lifting pump connects filter press, is connected to composite waste conditioning tank in the middle part of sludge concentration tank；The filtrate (liquid of filter press
Lower section is equipped with and connects liquid bath, connects liquid bath and is connected with composite waste conditioning tank.
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