CN112266116A - Rural drinking water treatment facilities is used to ceramic membrane that thoughtlessly congeals - Google Patents

Rural drinking water treatment facilities is used to ceramic membrane that thoughtlessly congeals Download PDF

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Publication number
CN112266116A
CN112266116A CN202011140439.6A CN202011140439A CN112266116A CN 112266116 A CN112266116 A CN 112266116A CN 202011140439 A CN202011140439 A CN 202011140439A CN 112266116 A CN112266116 A CN 112266116A
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China
Prior art keywords
water
ceramic membrane
unit
coagulation
pipe
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CN202011140439.6A
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Chinese (zh)
Inventor
夏圣骥
胡蔼然
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Tongji University
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Tongji University
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Priority to CN202011140439.6A priority Critical patent/CN112266116A/en
Publication of CN112266116A publication Critical patent/CN112266116A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Abstract

The invention relates to a rural drinking water treatment device with a coagulation ceramic membrane, which comprises a coagulation unit (1), a ceramic membrane unit (2), a transfer control unit (3) and a clear water zone-ultraviolet digestion unit (4) which are sequentially connected in series; the coagulation unit (1) is provided with a water inlet pipe (11), a tubular mixer (14) and a coagulant adding pump (13), wherein the water inlet pipe (11) is connected with the ceramic membrane unit (2); the tubular mixer (14) is arranged on the water inlet pipe (11); the coagulant adding pump (13) and the water inlet pipe (11) are connected with the front end of the tubular mixer (14). Compared with the prior art, the invention has the advantages of improving the water treatment efficiency of the short-flow integrated equipment, being suitable for rural drinking water treatment and the like.

Description

Rural drinking water treatment facilities is used to ceramic membrane that thoughtlessly congeals
Technical Field
The invention relates to the field of water treatment devices, in particular to a rural drinking water treatment device with a coagulation ceramic membrane.
Background
Compared with a conventional water plant with a civil structure, the integrated water treatment equipment has the characteristics of small floor area, small influence by landform and landform, low investment price, simplicity in operation and management, low running cost, stable effect and the like, and is suitable for the requirements of rural areas on water treatment basic equipment. At present, an integrated sewage treatment facility mainly takes an A/O process, an MBR process, an oxidation ditch process, a biological filter process and the like as the core, an integrated coagulation-precipitation-filtration conventional water purification treatment process such as an SDJ (Severe grade separator), LEJI (LegS) type water purifier is mostly adopted in the aspect of drinking water, and partial equipment optimizes the process in ways of strengthening coagulation and the like. However, because the scale of the general integrated equipment is small, the time of the water purification process is limited, and the removal capability of turbidity, microbial pollutants and the like is limited to a certain extent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a rural drinking water treatment device combining a coagulation ceramic membrane, which improves the water treatment efficiency of short-flow integrated equipment and is suitable for rural drinking water treatment.
The purpose of the invention can be realized by the following technical scheme:
the invention adopts the microfiltration ceramic membrane as the core and is provided with the on-line pre-coagulation treatment unit to reduce the pollution of inlet water to the membrane, improve the water purification efficiency and shorten the length of the whole process flow. An ultraviolet disinfection unit is designed at the water outlet end to inactivate microbial pollutants such as bacteria in water, so that the aim of safe and sanitary water supply in rural areas is fulfilled.
A rural drinking water treatment device combining a coagulation ceramic membrane comprises a coagulation unit, a ceramic membrane unit, a transfer control unit and a clear water area-ultraviolet digestion unit which are sequentially connected in series;
the coagulation unit is provided with a water inlet pipe, a tubular mixer and a coagulant adding pump, and the water inlet pipe is connected with the ceramic membrane unit; the tubular mixer is arranged on the water inlet pipe; the coagulant adding pump and the water inlet pipe are connected with the front end of the tubular mixer.
The coagulant is food-grade polyaluminium chloride (PAC), the designed adding concentration is 2-4mg/L, the coagulant is added by a coagulant adding pump according to the adjustment of the water quality of a local water source in the practical engineering, and then the coagulant and the entering water to be treated are mixed in a tubular mixer. The tubular mixer may contain a stirring mechanism.
Furthermore, the inlet end of the water inlet pipe is also provided with a water inlet, and the front end of the mixer is provided with a water inlet pump for pumping water to be treated.
Further, the ceramic membrane unit comprises a water inlet hole pipe, a ceramic membrane filter for filtering water to be treated and a filtered water outlet pipe;
the water inlet hole pipe is arranged at the bottom of the ceramic membrane unit and is connected with the water inlet pipe; the ceramic membrane filter is erected in the ceramic membrane unit; one end of the filtering water pipe is connected with the outlet of the ceramic membrane filter, and the other end of the filtering water pipe is connected with the transfer control unit. The filtration mode is out-in low-pressure microfiltration filtration mode.
Furthermore, the ceramic membrane filter comprises a plurality of alpha-Al arranged in an overlapping mode2O3The average pore diameter of the ceramic membrane component is 0.1 mu m, and the design flux of the ceramic membrane component is 150L/(m)2·h);
The water inlet hole pipe is provided with a plurality of water distribution holes, and the water distribution holes are arranged corresponding to the ceramic membrane filter.
Furthermore, a first overflow pipe for discharging redundant water is arranged at the top of the ceramic membrane unit. The water overflowed by the first overflow pipe directly flows to the outside of the device, and the operation of the whole device cannot be influenced.
Furthermore, the transfer control unit is provided with a transfer water pipe, and a suction filter pump is arranged on the transfer water pipe; one end of the transfer water pipe is connected with the ceramic membrane unit, and the other end of the transfer water pipe is connected with the clear water zone-ultraviolet digestion unit.
Furthermore, a pressure sensor and an electromagnetic valve for controlling the flow of the transfer water pipe are respectively arranged on two sides of the suction filtration pump.
Furthermore, the transfer control unit also comprises an electric cabinet and a PLC control system;
the PLC control system is simultaneously electrically connected with the pressure sensor, the electromagnetic valve, the coagulation unit and the clear water area-ultraviolet digestion unit; the electric control box is electrically connected with the PLC control system.
Furthermore, the clear water area-ultraviolet digestion unit comprises a low-pressure ultraviolet lamp group for disinfecting water to be treated and a water outlet pipe for discharging the treated water, and the low-pressure ultraviolet lamp group is erected in the clear water area-ultraviolet digestion unit.
The low-voltage ultraviolet lamp group adopts a straight-tube hot cathode low-voltage mercury ultraviolet disinfection lamp, the light source wavelength is 253.7nm, the lamp tube is made of quartz glass, and the irradiation mode is an underwater irradiation method.
Furthermore, a second overflow pipe for discharging redundant water is arranged at the top of the clear water area-ultraviolet digestion unit.
In fact, the PLC control system is simultaneously electrically connected with the pressure sensor, the electromagnetic valve, the water inlet pump and the coagulant adding pump in the coagulation unit and the low-voltage ultraviolet lamp group in the clear water area-ultraviolet digestion unit. The start and the shutdown of the water pump, the ultraviolet and the lighting equipment are controlled by a PLC system.
Compared with the prior art, the invention has the following advantages:
(1) an online pre-coagulation treatment unit is adopted to reduce the pollution of inlet water to the membrane and improve the water purification efficiency;
(2) compared with the conventional water purification treatment process of coagulation-precipitation-filtration, the on-line coagulation can ensure the removal effect of turbidity and microbial pollutants while shortening the length of the whole process flow, and the main mechanism is that raw water is quickly stirred after a coagulant is added, and colloid is directly subjected to membrane filtration after destabilization, so that the occupied time-consuming processes of coagulation, precipitation and the like are reduced;
(3) the membrane water treatment device has a simple structure, is not easy to generate membrane pollution, occupies a small area and is slightly influenced by landforms; the device has the advantages of small investment scale, easy production and installation, low operation and maintenance cost, automatic control and convenient modification and upgrade.
Drawings
FIG. 1 is a diagram of a rural drinking water treatment device with a coagulation ceramic membrane in an embodiment;
FIG. 2 is a graph of specific transmembrane pressure difference in the examples;
FIG. 3 is a graph showing the contamination characteristics of the film in the examples;
FIG. 4 is a three-dimensional fluorescence spectrum of an organic substance in the example;
FIG. 5 is an electron micrograph of a contaminated surface of the film of the example;
the reference numbers in the figures indicate: the system comprises a coagulation unit 1, a water inlet 10, a water inlet pipe 11, a water inlet pump 12, a coagulant adding pump 13, a tubular mixer 14, a ceramic membrane unit 2, a water inlet hole pipe 21, a water distribution hole 210, a ceramic membrane filter 22, a filtered water outlet pipe 23, a transfer control unit 3, a suction filtration pump 31, an electric cabinet 32, a PLC control system 33, a transfer water pipe 34, an electromagnetic valve 35, a pressure sensor 36, a clear water zone-ultraviolet digestion unit 4, a low-pressure ultraviolet lamp group 41, a water outlet pipe 42 and a second overflow pipe 43.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
A rural drinking water treatment device combining coagulation and ceramic membrane is shown in figure 1, and comprises a coagulation unit 1, a ceramic membrane unit 2, a transfer control unit 3 and a clear water zone-ultraviolet digestion unit 4 which are sequentially connected in series; the coagulation unit 1 is provided with a water inlet pipe 11, a tubular mixer 14 and a coagulant adding pump 13, wherein the water inlet pipe 11 is connected with the ceramic membrane unit 2; the tubular mixer 14 is arranged on the water inlet pipe 11; the coagulant adding pump 13 and the water inlet pipe 11 are connected to the front end of the pipe mixer 14. The inlet end of the water inlet pipe 11 is also provided with a water inlet 10, and the front end of the mixer 14 is provided with a water inlet pump 12 for pumping water to be treated.
The coagulant is food-grade polyaluminium chloride (PAC), the adding concentration is 4mg/L, and after the coagulant is added by a coagulant adding pump 13, the coagulant and the entering water to be treated are mixed in a tubular mixer 14. The tubular mixer 14 contains a stirring mechanism. The rotating speed of the mechanical stirring paddle is 350r/min, and the mixing time is 2 min.
The ceramic membrane unit 2 comprises a water inlet hole pipe 21, a ceramic membrane filter 22 for filtering water to be treated and a filtered water outlet pipe 23; the water inlet pipe 21 is arranged at the bottom of the ceramic membrane unit 2 and is connected with the water inlet pipe 11; the ceramic membrane filter 22 is arranged in the ceramic membrane unit 2; one end of the filtering water outlet pipe 23 is connected with the outlet of the ceramic membrane filter 22, and the other end is connected with the transfer control unit 3. The filtration mode is out-in low-pressure microfiltration filtration mode. The water inlet hole pipe 21 is provided with a plurality of water distribution holes 210, and the water distribution holes 210 are arranged corresponding to the ceramic membrane filter 22. The top of the ceramic membrane unit 2 is also provided with a first overflow pipe 24 for discharging excess water. The water overflowed by the first overflow pipe 24 directly flows to the outside of the device, and the operation of the whole device is not influenced.
The ceramic membrane filter 22 includes a plurality of overlapping alpha-Al layers2O3A flat ceramic membrane module having an average pore diameter of 0.1 μm and a single membrane size of 250mm x 80mm x 6mm,the effective filtering area is 400cm2. The ceramic membrane filter 22 is fixed at a position 6cm below the liquid level, an out-in suction filtration mode is adopted, and the water outlet end of the ceramic membrane filter 22 is connected with a suction filtration pump 31 through a filtered water pipe 23. The suction filtration pump 31 provides filtration power, and the suction filtration/back washing mode is switched by changing the rotation direction of the pump head of the suction filtration pump 31. The flux of the ceramic membrane module is 120L/(m)2H); the device performs 90s hydraulic backwashing once every 60min, and the backwashing strength is 50 kPa.
The transfer control unit 3 is provided with a transfer water pipe 34, and the transfer water pipe 34 is provided with a suction filter pump 31; one end of the transit water pipe 34 is connected with the ceramic membrane unit 2, and the other end is connected with the clear water zone-ultraviolet digestion unit 4. A pressure sensor 36 and an electromagnetic valve 35 for controlling the flow of the transit water pipe 34 are respectively arranged at two sides of the suction filter pump 31. The suction pump 31 is a peristaltic pump. The transfer control unit 3 further comprises an electric cabinet 32 and a PLC control system 33; the PLC control system 33 is simultaneously electrically connected with the pressure sensor 36, the electromagnetic valve 35, the coagulation unit 1 and the clear water zone-ultraviolet digestion unit 4; the electric control box 32 is electrically connected with the PLC control system 33.
The clear water area-ultraviolet digestion unit 4 comprises a low-pressure ultraviolet lamp group 41 for disinfecting water to be treated and a water outlet pipe 42 for discharging treated water, and the low-pressure ultraviolet lamp group 41 is erected in the clear water area-ultraviolet digestion unit 4. The low-voltage ultraviolet lamp group 41 adopts a straight-tube hot cathode low-voltage mercury ultraviolet disinfection lamp, the light source wavelength is 253.7nm, the lamp tube is made of quartz glass, and the irradiation mode is an underwater irradiation method. The top of the clear water area-ultraviolet digestion unit 4 is also provided with a second overflow pipe 43 for discharging the redundant water.
In fact, the PLC control system 33 is electrically connected to the pressure sensor 36, the electromagnetic valve 35, the water inlet pump 12 and the coagulant adding pump 13 in the coagulation unit 1, and the low-pressure uv lamp set 41 in the clear water region-uv digestion unit 4 at the same time. The start and the shutdown of the water pump, the ultraviolet and the lighting equipment are controlled by a PLC system.
The experimental result shows that the device has better water purification and anti-pollution effects, and the average specific transmembrane pressure difference (TMP/TMP) of the filtration period0) The increase is less than 1.08, the average irreversible pollution (IF) ratio is not more than 20 percent, the turbidity of raw water can be reduced to be less than 0.1NTU, and DOC and UV254The removal rate reaches 37.6 percent and 50.8 percent respectively, and the removal rate of the fluorescence intensity of the A (fulvic acid substances) and the C (humic acid substances) reaches 41.4 percent and 37.7 percent respectively.
Figures 2 and 3 show the contamination of the membrane during operation of the apparatus. An average filtration cycle ratio transmembrane pressure rise of less than 1.08 indicates that the degree of membrane fouling is maintained at a low level under pre-coagulation conditions; the irreversible pollution ratio is not more than 20%, which means that most of membrane pollution can be recovered by flushing, and the long-term operation reliability of the device is guaranteed. FIG. 4 is a three-dimensional fluorescence spectrum of organic substances in effluent of the apparatus, which shows that the removal rates of the organic substances in the A (fulvic acid substances) region and the C (humic acid substances) region respectively reach 41.4% and 37.7%. FIG. 5 is an electron microscope image of a membrane-contaminated surface, in which a smooth and dense filter cake layer is formed on the membrane surface of raw water after pre-coagulation treatment, because colloidal substances in the raw water are destabilized after coagulant addition, and can be aggregated into micro flocs in a short time, and the micro flocs are compressed and deposited on the membrane surface under the action of pressure, thereby being beneficial to improving the removal rate of organic matters and reducing membrane contamination.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (10)

1. A rural drinking water treatment device combining a coagulation ceramic membrane is characterized by comprising a coagulation unit (1), a ceramic membrane unit (2), a transfer control unit (3) and a clear water zone-ultraviolet digestion unit (4) which are sequentially connected in series;
the coagulation unit (1) is provided with a water inlet pipe (11), a tubular mixer (14) and a coagulant adding pump (13), wherein the water inlet pipe (11) is connected with the ceramic membrane unit (2); the tubular mixer (14) is arranged on the water inlet pipe (11); the coagulant adding pump (13) and the water inlet pipe (11) are connected with the front end of the tubular mixer (14).
2. The rural drinking water treatment device with a concrete ceramic membrane combined according to claim 1, wherein the inlet end of the water inlet pipe (11) is further provided with a water inlet (10), and the front end of the mixer (14) is provided with a water inlet pump (12) for pumping water to be treated.
3. The rural drinking water treatment device with a ceramic membrane for coagulation combination according to claim 1, wherein the ceramic membrane unit (2) comprises a water inlet pipe (21), a ceramic membrane filter (22) for filtering water to be treated and a filtered water outlet pipe (23);
the water inlet hole pipe (21) is arranged at the bottom of the ceramic membrane unit (2) and is connected with the water inlet pipe (11); the ceramic membrane filter (22) is erected in the ceramic membrane unit (2); one end of the filtering water outlet pipe (23) is connected with the outlet of the ceramic membrane filter (22), and the other end is connected with the transfer control unit (3).
4. The rural drinking water treatment device with combined coagulation ceramic membrane as claimed in claim 3, wherein the ceramic membrane filter (22) comprises a plurality of overlapped alpha-Al2O3The average pore diameter of the ceramic membrane component is 0.1 mu m, and the design flux of the ceramic membrane component is 150L/(m)2·h);
The water inlet hole pipe (21) is provided with a plurality of water distribution holes (210), and the water distribution holes (210) are arranged corresponding to the ceramic membrane filter (22).
5. The rural drinking water treatment device with a ceramic membrane for coagulation combination according to claim 3, wherein the top of the ceramic membrane unit (2) is further provided with a first overflow pipe (24) for discharging the redundant water.
6. The rural drinking water treatment device with a combined coagulation ceramic membrane according to claim 1, wherein the transit control unit (3) is provided with a transit water pipe (34), and the transit water pipe (34) is provided with a suction and filtration pump (31); one end of the transfer water pipe (34) is connected with the ceramic membrane unit (2), and the other end is connected with the clear water zone-ultraviolet digestion unit (4).
7. The rural drinking water treatment device with a ceramic membrane for coagulation combination according to claim 6, wherein a pressure sensor (36) and an electromagnetic valve (35) for controlling the flow of the transit water pipe (34) are respectively arranged at two sides of the suction pump (31).
8. The rural drinking water treatment device with a combined coagulation ceramic membrane according to claim 7, wherein the transit control unit (3) further comprises an electric cabinet (32) and a PLC control system (33);
the PLC control system (33) is simultaneously electrically connected with the pressure sensor (36), the electromagnetic valve (35), the coagulation unit (1) and the clear water area-ultraviolet digestion unit (4); the electric control box (32) is electrically connected with the PLC control system (33).
9. The rural drinking water treatment device with a combined coagulation ceramic membrane as claimed in claim 1, wherein the clean water zone-ultraviolet digestion unit (4) comprises a low-pressure ultraviolet lamp set (41) for disinfecting water to be treated and a water outlet pipe (42) for discharging treated water, and the low-pressure ultraviolet lamp set (41) is erected in the clean water zone-ultraviolet digestion unit (4).
10. The rural drinking water treatment device with a combined coagulation ceramic membrane according to claim 9, wherein a second overflow pipe (43) for discharging redundant water is further arranged at the top of the clear water zone-ultraviolet digestion unit (4).
CN202011140439.6A 2020-10-22 2020-10-22 Rural drinking water treatment facilities is used to ceramic membrane that thoughtlessly congeals Pending CN112266116A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113023831A (en) * 2021-03-15 2021-06-25 同济大学 Rural drinking water treatment facilities of absorption ceramic membrane antithetical couplet
CN115093054A (en) * 2022-07-06 2022-09-23 山东理工大学 Harmless treatment method for landfill leachate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100877805B1 (en) * 2007-08-10 2009-01-08 삼성물산 주식회사 Advanced water purification system and method using ultraviolet absorbance
CN202089854U (en) * 2011-01-25 2011-12-28 太平洋水处理工程有限公司 Short-flow-path water purifying device utilizing immersive ultrafilteration membrane as core
CN107555660A (en) * 2017-09-30 2018-01-09 三达膜科技(厦门)有限公司 A kind of drink water purifying method
CN107673504A (en) * 2017-09-25 2018-02-09 广东粤港供水有限公司 A kind of method of ozone ceramic membrane activated carbon combination purification drinking water
CN209797708U (en) * 2019-03-20 2019-12-17 北京科泰兴达高新技术有限公司 Sewage treatment system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100877805B1 (en) * 2007-08-10 2009-01-08 삼성물산 주식회사 Advanced water purification system and method using ultraviolet absorbance
CN202089854U (en) * 2011-01-25 2011-12-28 太平洋水处理工程有限公司 Short-flow-path water purifying device utilizing immersive ultrafilteration membrane as core
CN107673504A (en) * 2017-09-25 2018-02-09 广东粤港供水有限公司 A kind of method of ozone ceramic membrane activated carbon combination purification drinking water
CN107555660A (en) * 2017-09-30 2018-01-09 三达膜科技(厦门)有限公司 A kind of drink water purifying method
CN209797708U (en) * 2019-03-20 2019-12-17 北京科泰兴达高新技术有限公司 Sewage treatment system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
井出哲夫: "《水处理工程理论与应用》", 31 October 1986, 中国建筑工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113023831A (en) * 2021-03-15 2021-06-25 同济大学 Rural drinking water treatment facilities of absorption ceramic membrane antithetical couplet
CN115093054A (en) * 2022-07-06 2022-09-23 山东理工大学 Harmless treatment method for landfill leachate

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Application publication date: 20210126