CN115180745A - Tubular membrane industrial regenerated water system and process - Google Patents

Tubular membrane industrial regenerated water system and process Download PDF

Info

Publication number
CN115180745A
CN115180745A CN202210960340.3A CN202210960340A CN115180745A CN 115180745 A CN115180745 A CN 115180745A CN 202210960340 A CN202210960340 A CN 202210960340A CN 115180745 A CN115180745 A CN 115180745A
Authority
CN
China
Prior art keywords
tank
tubular membrane
water
reverse osmosis
filter
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.)
Pending
Application number
CN202210960340.3A
Other languages
Chinese (zh)
Inventor
林超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weitai Technology Wuxi Co ltd
Original Assignee
Weitai Technology Wuxi Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weitai Technology Wuxi Co ltd filed Critical Weitai Technology Wuxi Co ltd
Priority to CN202210960340.3A priority Critical patent/CN115180745A/en
Publication of CN115180745A publication Critical patent/CN115180745A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • C02F1/66—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
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a tubular membrane industrial reclaimed water system and a process, and aims to provide a tubular membrane industrial reclaimed water system which is more space-saving, easier to control, stable in water outlet and stronger in pollution resistance.

Description

Tubular membrane industrial regenerated water system and process
Technical Field
The invention relates to the field of wastewater recycling equipment, in particular to a tubular membrane industrial regenerated water system and a process.
Background
The traditional process of the industrial regenerated water system for grinding the wastewater is dosing reaction, coagulating sedimentation, multi-medium filtration, ultrafiltration and reverse osmosis. The treatment process route is long, the effluent of the sedimentation tank is unstable, the impact load resistance is weak, and if the effluent is not good, a mixed bed is added, so that the operation cost is increased, and the management difficulty is increased. Some raw water such as high-suspension solid industrial wastewater has high content of inorganic suspended matters and irregular particle shapes, if part of raw water is filtered by a filter, the filter is quickly polluted and blocked, the possible filtering effect is not ideal, common ultrafiltration and microfiltration cannot accept the high content of the suspended matters, and extremely small granular silicon is difficult to settle. The water mostly contains no other impurities, so the water has high recycling value.
Aiming at wastewater treatment and recycling, in the traditional process, chemical agents are generally added to form precipitates (flocculants and coagulants such as PAC and PAM are added in the process), then solid-liquid separation is carried out by using a settling pond, the supernatant of the settling pond is subjected to pre-filtration treatment by using a multi-medium filter, then the supernatant is subjected to further turbidity removal treatment by using hollow fiber ultrafiltration after passing through security filtration equipment, and finally the supernatant enters a unit such as membrane separation and the like for desalination and concentration, and the produced water returns to a main system. The whole treatment process has the advantages of long flow, low reliability, large investment, large occupied area and high operation cost.
At present, chinese patent publication No. CN114804156A discloses a chemical waste salt separation and recovery system, which comprises a sodium chloride waste salt calcining system, a sodium chloride tubular membrane system, a sodium chloride nanofiltration system, a sodium chloride evaporation system, a sodium sulfate waste salt calcining system, a sodium sulfate tubular membrane system, an ion exchange resin system, a sodium sulfate primary crystallization system, a sodium sulfate secondary crystallization system, a sodium sulfate mother liquor tubular membrane system, a sodium sulfate nanofiltration system, a sodium sulfate ultrafiltration system, a waste gas treatment system, and a mixed salt drying system.
Although the chemical waste salt separating and recycling system can separate and recycle different types of industrial waste salts, realizes resource utilization of waste salts mainly comprising sodium chloride and waste salts mainly comprising sodium sulfate, reduces the cost of the hazardous waste treatment industry, solves the problem of environmental protection, and creates a certain economic value, grinding waste water is generated in the cleaning process after the processes of cutting, grinding, scribing, thinning, chemical grinding and leveling (CMP) and the like in the manufacturing process of wafer rods and wafers. The grinding waste water contains a small amount of grinding paste, ground micro particles and cleaning agents, but the water quality is relatively good, the conductivity and the TOC content are low, and the grinding waste water has a recycling value.
Disclosure of Invention
The invention aims to provide a tubular membrane industrial regenerated water system which has the advantages of one-step operation of a tubular membrane, integration of functions of a sedimentation tank and membrane filtration, space saving, easy control and stable water outlet, and only needs to be added with a medicament to react into insoluble particles.
The technical purpose of the invention is realized by the following technical scheme:
a tubular membrane industrial regenerated water system comprises a grinding wastewater inlet, wherein a pretreatment unit is connected to the grinding wastewater inlet, a reverse osmosis unit is connected to the pretreatment unit, and a tubular membrane unit is connected between the pretreatment unit and the reverse osmosis unit;
the pretreatment unit comprises a wastewater adjusting tank connected with a grinding wastewater inlet, the wastewater adjusting tank is also connected with a reaction tank A, the reaction tank A is connected with a reaction tank B, and the reaction tank A and the reaction tank B are also connected with an adjusting unit;
the tubular membrane unit comprises a circulating tank connected with the reaction tank B, and a tubular membrane filter is connected to the circulating tank; the outlet of the tubular membrane filter is also provided with a circulating pipe connected with the circulating pool;
the reverse osmosis unit comprises a water production tank connected with a space tube type membrane filter, a complete set of dosing device is connected onto the water production tank, a security filter is further arranged on the complete set of dosing device, a reverse osmosis machine is further arranged on the security filter, and a reverse osmosis water production tank is arranged on the reverse osmosis machine.
Further setting: the adjusting unit comprises a sodium hydroxide dispenser arranged on the reaction tank A, and a polyaluminium chloride dispenser and a powdered activated carbon dispenser are arranged on the reaction tank B.
Further setting: and a raw water pump is also arranged between the wastewater adjusting tank and the reaction tank A.
Further setting: and a sludge discharge pump is also arranged between the reaction tank B and the circulating tank, and a sludge concentration tank is also arranged on the sludge discharge pump.
Further setting: and a circulating pump is also arranged between the circulating pool and the tubular membrane filter.
Further setting: tubular membrane filter still is connected with chemical cleaning device, chemical cleaning device includes acid cleaning water tank and alkali cleaning water tank, acid cleaning water tank and alkali cleaning water tank export still are equipped with the drawing liquid pump, drawing liquid pump export still is equipped with the pickling control valve and washes the control valve with alkaline, the pickling control valve and wash the control valve with alkaline and be connected with tubular membrane filter.
Further setting: the complete set of dosing device comprises a sodium bisulfite box, a bactericide box and a scale inhibitor box which are arranged in parallel, wherein dosing pumps are respectively arranged on the sodium bisulfite box, the bactericide box and the scale inhibitor box, and the outlet of each dosing pump is connected with a security filter
Further setting: a booster pump is arranged between the security filter and the reverse osmosis machine.
Another object of the present invention is to provide a tubular membrane industrial reclaimed water process which has the advantages of effectively recycling waste water and collecting high-value small particle suspended matters in the waste water for continuous utilization.
The technical purpose of the invention is realized by the following technical scheme:
a tubular membrane industrial reclaimed water process comprises the following steps:
s1, adding chemicals into a pretreatment unit to form stable compound particle substances, adding sodium hydroxide into a reaction tank A to adjust the pH, adding PAC into adjusted wastewater to perform a coagulation reaction, and allowing the reacted wastewater to flow into a circulation tank to circulate;
s2, lifting the water in the circulating pool to the tubular membrane device by the circulating pump, circulating in a cross flow operation mode, adjusting the PH value of the liquid in the tubular membrane filter by the chemical cleaning device in the operation process, and performing acid cleaning or alkali cleaning on the tubular membrane device to ensure that the flux of the liquid is normally stored in a water production tank through the produced water of the tubular membrane device, and some precipitated impurities enter the circulating pool through the circulating pipe to be continuously circulated;
and S3, enabling the water production tank to enter a cartridge filter from the inside through a reverse osmosis raw water pump, adding a sodium bisulfite tank, a bactericide tank and a scale inhibitor into a pipeline in the process, performing mixing reaction, then enabling the mixture to enter the cartridge filter, utilizing a high-pressure pump to press the water filtered by the cartridge filter into a reverse osmosis machine for reverse osmosis, discharging the high-concentration part of the water subjected to reverse osmosis, and storing the low-concentration water into a reverse osmosis water production tank for storage and recycling.
In conclusion, the invention has the following beneficial effects: the utility model provides a can be to retrieving of grinding waste water and recycling, can carry out effectual recovery to the inside suspended particle of waste water and other impurity etc. simultaneously, carry out unified processing simultaneously, can adjust to inside liquid PH value at any time in the process to guarantee the filter effect, whole processing technology flow is short, the reliability is high, the investment is little, area is little, the running cost is low.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic flow diagram of a tubular membrane industrial regenerated water system.
In the figure, 1, a grinding waste water inlet; 2. a pre-processing unit; 21. a wastewater adjusting tank; 22. a reaction tank A; 23. a reaction tank B; 24. an adjustment unit; 241. a sodium hydroxide dispenser; 242. a polyaluminum chloride dispenser; 243. a powdered activated carbon dispenser; 3. a reverse osmosis unit; 31. a water production tank; 32. a complete set of medicine adding device; 321. a sodium bisulfite box; 322. a sterilant box; 323. a scale inhibitor tank; 324. a dosing pump; 33. a cartridge filter; 34. a reverse osmosis machine; 35. a reverse osmosis water production tank; 4. a tubular membrane unit; 41. a circulation tank; 42. a tubular membrane filter; 43. a circulation pipe; 5. a raw water pump; 6. a sludge discharge pump; 7. a sludge concentration tank; 8. a circulation pump; 9. a chemical cleaning device; 91. an acid cleaning water tank; 92. an alkaline cleaning water tank; 93. a liquid pump; 94. a pickling control valve; 95. an alkaline washing control valve; 10. a booster pump.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
The technical scheme adopted by the invention is as follows: a tubular membrane industrial reclaimed water system is shown in figure 1 and comprises a grinding wastewater inlet 1, wherein a pretreatment unit 2 is connected to the grinding wastewater inlet 1, the pretreatment unit 2 comprises a wastewater adjusting tank 21 connected with the grinding wastewater inlet 1, a reaction tank A22 is also connected to the wastewater adjusting tank 21, a raw water pump 5 is also arranged between the wastewater adjusting tank 21 and the reaction tank A22, a reaction tank B23 is connected to the reaction tank A22, and an adjusting unit 24 is also connected to the reaction tank A22 and the reaction tank B23; the adjusting unit 24 comprises a sodium hydroxide dispenser 241 arranged on the reaction tank A22, and a polyaluminium chloride dispenser 242 and a powdered activated carbon dispenser 243 arranged on the reaction tank B23. The pretreatment unit 2 is connected with a tubular membrane unit 4, the tubular membrane unit 4 comprises a circulating pool 41 connected with a reaction pool B23, a sludge discharge pump 6 is arranged between the reaction pool B23 and the circulating pool 41, a sludge concentration pool 7 is arranged on the sludge discharge pump 6, and a tubular membrane filter 42 is connected on the circulating pool 41; still be equipped with circulating pump 8 between circulation tank 41 and the tubular membrane filter 42, tubular membrane filter 42 still is connected with chemical cleaning device 9, and chemical cleaning device 9 includes that acid washs water tank 91 and alkali and washs water tank 92, and acid washs water tank 91 and alkali and washs the water tank 92 export and still is equipped with drawing liquid pump 93, and drawing liquid pump 93 export still is equipped with pickling control valve 94 and alkali wash control valve 95, and pickling control valve 94 and alkali wash control valve 95 are connected with tubular membrane filter 42.
The outlet of the tubular membrane filter 42 is also provided with a circulating pipe 43 reverse osmosis unit 3 connected with the circulating pool 41, the reverse osmosis unit 3 comprises a water production tank 31 connected with the tubular membrane filter 42, the water production tank 31 is connected with a complete medicine adding device 32, the complete medicine adding device 32 comprises a sodium bisulfite tank 321, a bactericide tank 322 and a scale inhibitor tank 323 which are arranged in parallel, the sodium bisulfite tank 321, the bactericide tank 322 and the scale inhibitor tank 323 are also respectively provided with a medicine adding pump 324, the outlet of the medicine adding pump 324 is connected with a security filter 33, the complete medicine adding device 32 is also provided with a security filter 33, the security filter 33 is also provided with a reverse osmosis machine 34, a booster pump 10 is also arranged between the security filter 33 and the reverse osmosis machine 34, and the reverse osmosis machine 34 is provided with a reverse osmosis water production tank 35.
The main process steps comprise S1, adding chemicals into a pretreatment unit 2 to form stable compound granular substances, adding sodium hydroxide into a reaction tank A22 to adjust the pH, adding PAC into a regulated wastewater flowing into a reaction tank B23 to perform a coagulation reaction, and flowing the reacted water into a circulation tank 41 to perform circulation; s2, lifting the water in the circulation tank 41 to the tubular membrane device by the circulation pump 8, circulating in a cross-flow operation mode, adjusting the PH value of the liquid in the tubular membrane filter 42 by the chemical cleaning device 9 in the operation process, storing the produced water in the tubular membrane device to the water production tank, and allowing some precipitated impurities to enter the circulation tank 41 through the circulation pipe 43 for continuous circulation; s3, the water production tank 31 enters the cartridge filter 33 through the reverse osmosis raw water pump 5, a sodium bisulfite tank 321, a bactericide tank 322 and a scale inhibitor tank 323 can be added into the pipeline in the process, the mixture is reacted and then enters the cartridge filter 33, the water filtered by the cartridge filter 33 is pressed into a reverse osmosis machine 34 by a high-pressure pump for reverse osmosis, the high-concentration part of the water subjected to reverse osmosis is discharged outside, and the low-concentration water is stored in a reverse osmosis water production tank 35 for recycling.
The main working principle is as follows: tubular membrane industrial regenerated water system, including: the wastewater sequentially passes through the pretreatment unit 2, the tubular membrane unit 4 and the reverse osmosis unit 3, the pretreatment unit 2 is used for adding drugs to form stable compound granular substances, the tubular membrane unit 4 is used for removing large-particle organic matters and suspended matters, and most of inorganic matters, organic matters, suspended matters and bacterial viruses in the water are removed; the pretreatment unit 2 comprises: the system comprises a lift pump, a reaction tank A22, a reaction tank B23 and a circulation tank 41, wherein water in a raw water tank is transmitted into the reaction tank A22 through a pipeline, sodium hydroxide is added for pH adjustment, adjusted wastewater flows into the reaction tank B23, PAC is added for coagulation reaction, and the reacted water flows into the circulation tank 41 for circulation. The tubular membrane unit 4 comprises: the circulating pump 8 lifts the water in the circulating pool 41 to the tubular membrane filter 42, the water circulates in a cross flow operation mode, and the produced water in the tubular membrane filter 42 is stored in the water producing tank 31; the reverse osmosis unit 3 comprises a lift pump, a cartridge filter 33, a booster pump 10 and a reverse osmosis device, water in the water production tank 31 is extracted to the cartridge filter 33 through a water pipe, water subjected to coarse filtration enters the cartridge filter 33 after being mixed and reacted with a scale inhibitor tank 323 and a reducing agent in a pipeline mixer, the water subjected to coarse filtration is pressed into the reverse osmosis device by the booster pump 10 to be subjected to reverse osmosis, a high-concentration part of the water subjected to reverse osmosis is discharged outside, and a low-concentration water is stored in a reverse osmosis raw water tank to be stored.
The present invention is not intended to be limited to the above embodiments, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims (9)

1. A tubular membrane industrial regeneration water system, includes grinding waste water import (1), its characterized in that: the grinding wastewater inlet (1) is connected with a pretreatment unit (2), the pretreatment unit (2) is connected with a reverse osmosis unit (3), and a tubular membrane unit (4) is connected between the pretreatment unit (2) and the reverse osmosis unit (3);
the pretreatment unit (2) comprises a wastewater adjusting tank (21) connected with the grinding wastewater inlet (1), the wastewater adjusting tank (21) is also connected with a reaction tank A (22), the reaction tank A (22) is connected with a reaction tank B (23), and the reaction tank A (22) and the reaction tank B (23) are also connected with an adjusting unit (24);
the tubular membrane unit (4) comprises a circulating pool (41) connected with the reaction pool B (23), and a tubular membrane filter (42) is connected to the circulating pool (41); the outlet of the tubular membrane filter (42) is also provided with a circulating pipe (43) connected with the circulating pool (41);
reverse osmosis unit (3) include produce water tank (31) of being connected with tubular membrane filter (42), be connected with complete medicine device (32) on producing water tank (31), still be equipped with safety filter (33) on complete medicine device (32), still be equipped with reverse osmosis machine (34) on safety filter (33), it produces water tank (35) to be equipped with reverse osmosis on reverse osmosis machine (34).
2. The tubular membrane industrial reclaimed water system according to claim 1, wherein: the adjusting unit (24) comprises a sodium hydroxide dispenser (241) arranged on the reaction tank A (22), and a polyaluminium chloride dispenser (242) and a powdered activated carbon dispenser (243) are arranged on the reaction tank B (23).
3. The tubular membrane industrial regenerated water system according to claim 2, characterized in that: and a raw water pump (5) is also arranged between the wastewater adjusting tank (21) and the reaction tank A (22).
4. The tubular membrane industrial reclaimed water system according to claim 3, wherein: a sludge pump (6) is arranged between the reaction tank B (23) and the circulating tank (41), and a sludge concentration tank (7) is arranged on the sludge pump (6).
5. The tubular membrane industrial regenerated water system according to claim 4, characterized in that: and a circulating pump (8) is also arranged between the circulating pool (41) and the tubular membrane filter (42).
6. The tubular membrane industrial regenerated water system according to claim 5, characterized in that: tubular membrane filter (42) still is connected with chemical cleaning device (9), chemical cleaning device (9) are including acid cleaning water tank (91) and alkali washing water tank (92), acid cleaning water tank (91) and alkali washing water tank (92) export still are equipped with drawing liquid pump (93), drawing liquid pump (93) export still is equipped with pickling control valve (94) and alkali wash control valve (95), pickling control valve (94) and alkali wash control valve (95) are connected with tubular membrane filter (42).
7. The tubular membrane industrial reclaimed water system of claim 6, wherein: the complete medicine adding device (32) comprises a sodium bisulfite box (321), a bactericide box (322) and a scale inhibitor box (323) which are arranged in parallel, medicine adding pumps (324) are respectively arranged on the sodium bisulfite box (321), the bactericide box (322) and the scale inhibitor box (323), and the outlets of the medicine adding pumps (324) are connected with a security filter (33).
8. The tubular membrane industrial regenerated water system according to claim 7, characterized in that: a booster pump (10) is also arranged between the security filter (33) and the reverse osmosis machine (34).
9. A tubular membrane industrial reclaimed water process is characterized in that: the process is suitable for the tubular membrane industrial regenerated water system in any one of the items 1 to 8, and comprises the following steps:
s1, adding chemicals into a pretreatment unit (2) to form stable particle substances in a chemical combination state, adding sodium hydroxide into a reaction tank A (22) to adjust the pH value, adding PAC into a reaction tank B (23) to perform a coagulation reaction on the adjusted wastewater, and flowing the reacted water into a circulation tank (41) to circulate;
s2, lifting water in the circulation tank (41) to the tubular membrane device by the circulation pump (8), circulating in a cross-flow operation mode, adjusting the PH value of liquid in the tubular membrane filter (42) by the chemical cleaning device (9) in the operation process, and performing acid washing or alkali washing on the tubular membrane device to ensure that the flux of the liquid normally passes through the produced water of the tubular membrane device to be stored in the produced water tank (31) and some precipitated impurities enter the circulation tank (41) through the circulation pipe (43) to be continuously circulated;
s3, the water in the water production tank (31) enters a cartridge filter (33) through a reverse osmosis raw water pump (5), sodium bisulfite, a bactericide and a scale inhibitor can be added into a pipeline in the process, the mixture enters the cartridge filter (33) after reaction, the water filtered by the cartridge filter (33) is pressed into a reverse osmosis machine (34) by a high-pressure pump for reverse osmosis, the high-concentration part of the water subjected to reverse osmosis is discharged outside, and the low-concentration water is stored in a reverse osmosis water production tank (35) for recycling.
CN202210960340.3A 2022-08-11 2022-08-11 Tubular membrane industrial regenerated water system and process Pending CN115180745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210960340.3A CN115180745A (en) 2022-08-11 2022-08-11 Tubular membrane industrial regenerated water system and process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210960340.3A CN115180745A (en) 2022-08-11 2022-08-11 Tubular membrane industrial regenerated water system and process

Publications (1)

Publication Number Publication Date
CN115180745A true CN115180745A (en) 2022-10-14

Family

ID=83522999

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210960340.3A Pending CN115180745A (en) 2022-08-11 2022-08-11 Tubular membrane industrial regenerated water system and process

Country Status (1)

Country Link
CN (1) CN115180745A (en)

Similar Documents

Publication Publication Date Title
JP3244404B2 (en) Water treatment method and water treatment device
CN102826686B (en) Double-membrane treatment method of iron and steel industrial wastewater
CN100457645C (en) Zero discharge and circular utilization method of industrial effluent in regeneration treatment
CN103663547A (en) Treatment and recovery process of acid wastewater in titanium dioxide production process
CN101172724A (en) Method for processing sewage from industrial cycle water
KR101205197B1 (en) The production method of reusable water for high recoveries in industrial water
CN108793642A (en) A kind of dyeing waste water advanced treatment system and processing method
CN112174412A (en) Method for recycling reclaimed water in high-salt-content wastewater
CN111170524A (en) Reverse osmosis concentrated water recycling method
CN107522340A (en) A kind of system and method for recycling high villaumite sewage
CN101857321A (en) Method and equipment for treating and recycling reverse osmosis concentrated water and complex wastewater with high salt content
CN106966536A (en) Strong brine zero-emission film concentration technology and equipment
CN102295373A (en) Papermaking wastewater cycling and utilizing apparatus and method based on electrochemical and electrodialysis technologies
CN106746012A (en) A kind of municipal water supply advanced treatment system and method
US20040026326A1 (en) Liquid treatment method and apparatus
CN210656480U (en) Adopt washing cigarette waste water retrieval and utilization processing apparatus of DTRO device
CN109422383A (en) A kind of Treated sewage reusing treatment process
CN208762364U (en) Dyeing waste water advanced treatment system
CN110818168A (en) Smoke washing wastewater zero-discharge technical treatment system and method
CN217809055U (en) Tubular membrane industrial regenerated water system
KR20140101589A (en) System for Purification of Hydrogen Fluoride in Waste Water and Apparatus
CN110002654A (en) A kind of high-salt wastewater discharge treating system
CN115180745A (en) Tubular membrane industrial regenerated water system and process
CN215559437U (en) Wastewater treatment system
CN109179739A (en) A kind of strong brine zero discharge treatment production line

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