CN210595677U - Arsenic-containing wastewater treatment and recovery device - Google Patents
Arsenic-containing wastewater treatment and recovery device Download PDFInfo
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- CN210595677U CN210595677U CN201921044708.1U CN201921044708U CN210595677U CN 210595677 U CN210595677 U CN 210595677U CN 201921044708 U CN201921044708 U CN 201921044708U CN 210595677 U CN210595677 U CN 210595677U
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- pool
- filler
- joint part
- pipeline
- adjusting
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- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 8
- 238000004065 wastewater treatment Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000000945 filler Substances 0.000 claims abstract description 47
- 238000001179 sorption measurement Methods 0.000 claims abstract description 37
- 239000002351 wastewater Substances 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000010802 sludge Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 30
- 238000012806 monitoring device Methods 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 239000010865 sewage Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 238000000108 ultra-filtration Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 150000001495 arsenic compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 229940093920 gynecological arsenic compound Drugs 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
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- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses a processing and recovery unit who contains arsenic waste water, including operation terminal, control system and treatment facility, the treatment facility includes exposure pond, pH equalizing basin I, fixed adsorption bed, pH equalizing basin II, the biochemical treatment pond that connects gradually through pipeline and water pump, be equipped with one at least filler pipe in the fixed adsorption bed, filler pipe both ends are equipped with top connection portion and lower clutch portion that can mutually support respectively, can freely install or dismantle, be equipped with activated sludge in the biochemical treatment pond. The utility model discloses can set up the filler pipeline quantity in the fixed adsorption bed correspondingly according to pending waste water quality of water, after reaching certain adsorption time, dismantle the filler pipeline and elute to realize As elemental recycle, have fine economic benefits and environmental value.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to processing and recovery unit of arsenic waste water.
Background
Arsenic (As) is a heavy metal with high toxicity, and is commonly found in sewage discharged from metal smelting, chemical plants and semiconductor manufacturers. Arsenic compounds can be absorbed through respiratory tract, skin and digestive tract, and have carcinogenicity. At present, the main treatment methods of arsenic-containing sewage include chemical precipitation, physical adsorption and a biological method, wherein the chemical method easily produces secondary pollution, the treatment efficiency is general, the physical adsorption treatment effect is good, but the cost is higher, the biological method is low in cost, environment-friendly and sustainable, but sewage with overhigh toxicity can not be directly treated, most of fixed devices hardly realize the treatment requirements of different batches and different processes at the same time, and the recycling of arsenic can not be realized. Based on the problem, the utility model provides a handle and recovery unit for containing arsenic waste water can realize that the multiple technology allies oneself with uses and handles containing arsenic waste water, has with low costs, the wide advantage of range of application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a processing and recovery unit of arsenic-containing waste water, can realize that physical method, biochemical method ally oneself with to be used together and handle the sewage that contains arsenic to realize arsenic element's recycle, have fine economic nature and environmental benefit.
In order to achieve the above object, the utility model provides a following technical scheme:
a device for treating and recovering arsenic-containing wastewater comprises an operation terminal, a control system and treatment equipment, wherein the treatment equipment comprises an exposure pool, a pH adjusting pool I, a fixed adsorption bed, a pH adjusting pool II and a biochemical treatment pool which are sequentially connected through pipelines;
a first water quality monitoring device is arranged at the front section of the liquid inlet of the exposure tank, and a second water quality monitoring device is arranged at the rear end of the liquid outlet of the biochemical treatment tank; the liquid outlet of the pH adjusting tank I and the liquid outlet of the pH adjusting tank II are both provided with pH sensors; water pumps are sequentially arranged on pipelines among the exposure pool, the pH adjusting pool I, the fixed adsorption bed, the pH adjusting pool II and the biochemical treatment pool;
the fixed adsorption bed is internally provided with at least one filler pipeline, the two ends of the filler pipeline are respectively provided with an upper joint part and a lower joint part which can be matched with each other, the upper joint part is used for being matched with an upper layer filler pipeline or a liquid inlet, and the lower joint part is used for being matched with a lower layer filler pipeline or a liquid outlet;
the operation terminal comprises a display and an input device which are connected with the control circuit, the pH sensor, the water quality monitoring device and the water pump are all connected to the control system in a communication mode as input ends, the display is used for displaying relevant results of the water quality monitoring device and parameters of the pH sensor, the input device can remotely control the working state of the water pump through the control system, and the control system adopts a PLC (programmable logic controller) in the prior art.
The fixed adsorption bed is characterized in that an operation door is arranged on the side wall of the fixed adsorption bed, two opposite longitudinal grooves are formed in the inner wall of the fixed adsorption bed, a plurality of sliding blocks are fixed in the grooves through bolts, each sliding block is used for fixing each filling pipeline on the corresponding groove according to the position of the corresponding filling pipeline, and a supporting piece used for supporting the filling pipeline is arranged on each sliding block.
Specifically, the inner diameter of the upper joint part of the filler pipeline is larger than that of the lower joint part, an internal thread is arranged on the upper joint part, and an external thread is arranged on the lower joint part.
Specifically, the two ends of the filler pipeline are provided with detachable filtration members, and the filtration member 408 is provided with an ultrafiltration membrane, such as a PVC or PAN polymer ultrafiltration membrane, which can prevent materials above 10nm from passing through and prevent the filler from moving in the adsorption process.
Specifically, the filter element prevents the filler from moving during the adsorption treatment, and the filter element uses an ultrafiltration membrane as a filter component.
Specifically, the filler in the filler pipeline is ZrO with the particle size of 20-30nm2And (3) granules.
Specifically, the liquid outlets of the exposure pool, the pH adjusting pool I, the fixed adsorption bed, the pH adjusting pool II and the biochemical treatment pool are all provided with valves.
Specifically, activated sludge is arranged in the biochemical treatment tank and is used for carrying out biological treatment on sewage.
Compared with the prior art, the beneficial effects of the utility model are that: the fixed adsorption bed and the biochemical treatment tank are combined, so that arsenic-containing wastewater can be treated from two aspects of physical adsorption and biological treatment at the same time, and the low-cost, sustainable and high-treatment-rate operation of the whole equipment is ensured; the fixed adsorption bed is internally provided with a variable number of filler pipelines, so that the wastewater with different concentrations and toxicity can be flexibly treated; using ZrO2As an adsorbing material, the ZrO can be taken out for elution after a certain treatment time is reached, and the recyclable ZrO can be recovered2The material and the reusable As element have high economic benefit; display device, input device and control system's setting can realize remote control, has avoided the waste of human cost, the utility model discloses a many technology ally oneself with uses, can keep As's treatment rate on higher level, and low cost has important meaning to environment and economy simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fixed adsorbent bed according to an embodiment of the present invention;
fig. 3 is a schematic combination diagram of a filler pipe according to an embodiment of the present invention.
In the figure, 101-a first water quality monitoring device; 102-a second water quality monitoring device; 2-an exposure pool; 201-water inlet of exposure pool; 202 exposing a water outlet of the pool; 3-pH adjusting pool I; 301-water inlet of pH adjusting pool I; 302-a water outlet of the pH adjusting pool I; 4-fixed adsorption bed; 401-fixed adsorption bed water inlet; 402-fixed adsorption bed water outlet; 403-a packing conduit; 404-a slider; 405-a support; 406-an upper joint part; 407-lower tap; 5-pH adjusting pool II; 501-a water inlet of a pH adjusting pool II; 502-a water outlet of the pH adjusting tank II; 6-biochemical treatment pool; 601-biochemical treatment tank water inlet; 602-a water outlet of the biochemical treatment tank; 701. 702, 703, 704, 705 are all water pumps.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, an apparatus for treating and recycling arsenic-containing wastewater: the device comprises an operation terminal, a control system and processing equipment, wherein the processing equipment comprises an exposure pool 2, a pH adjusting pool I3, a fixed adsorption bed 4, a pH adjusting pool II5 and a biochemical treatment pool 6 which are sequentially connected through a water pump and a pipeline;
water quality monitoring equipment 101 and 102 are arranged at the front section of the liquid inlet 201 of the exposure tank and the rear section of the liquid outlet 602 of the biochemical treatment tank and are used for monitoring the water quality to be treated and the water quality parameters after treatment in real time, and pH sensors are arranged at the liquid outlet 302 of the pH adjusting tank I and the liquid outlet 502 of the pH adjusting tank II and can monitor the pH value of liquid in the treatment tank in real time so as to determine whether the next treatment process can be carried out or not;
at least one filler pipeline 403 is arranged in the fixed adsorption bed 4, and the length and the number of the required filler pipelines can be flexibly designed according to the toxicity and the concentration of the arsenic-containing wastewater to be treated; an upper joint part 406 and a lower joint part 407 are respectively arranged at two ends of the filler pipeline 403, the upper joint part 406 is used for being matched and connected with the lower joint part 407 of the upper-layer filler pipeline or the liquid inlet 401, and the lower part of the lower joint part 407 is used for being matched and connected with the upper joint part 406 of the lower-layer filler pipeline or the liquid outlet 402; the matching mode is threaded matching, and meanwhile, vaseline liquid seal is added, or frosted matching or other liquid seal connection modes can be adopted;
the operation terminal comprises a display and an input device, the pH sensor and the water quality monitoring devices 101 and 102, the water pumps 701, 702, 703, 704 and 705 are all connected to the control system as input end communication, the display is used for displaying the water quality monitoring device result and the pH sensor parameter, the input device can remotely control the operation state of the water pumps through the control system, and the control system can adopt a PLC system in the prior art.
The side wall of the fixed adsorption bed 4 is provided with an operation door for disassembling the filler pipe 403; two opposite longitudinal grooves are formed in the inner wall of the fixed adsorption bed 4, a plurality of sliding blocks 404 are fixed in the grooves through bolts, each sliding block 404 is used for fixing the sliding block on the groove according to the position of each filler pipeline 403, a supporting piece 405 is arranged on each sliding block, each supporting piece 405 is used for supporting the filler pipeline 403, and a supporting device of the filler pipeline 403 can be arranged in various connection modes such as embedding, riveting and the like; the two ends of the filler pipe 403 are provided with independent filtering elements 408, and the filtering elements 408 are provided with ultrafiltration membranes, such as PVC and PAN polymeric ultrafiltration membranes, which can prevent materials with a size of more than 10nm from passing through and prevent the filler from moving in the adsorption process.
The filler in the filler pipeline 405 is ZrO with the grain diameter of 20-30nm2The particles can also be other adsorption materials such as porous carbon, molecular sieve materials and the like; wherein, ZrO2The As adsorption capacity of the nano particles is 1.4mg/g, and the required weight of the adsorption filler is determined according to the content of As elements in the wastewater, so that the number of filler pipelines is determined.
The exposure pool 2, the pH adjusting pool I3, the fixed adsorption bed 4, the pH adjusting pool II5 and the liquid outlets 202, 302, 402, 502 and 602 of the biochemical treatment pool 6 are all provided with valves for closing a water inlet channel in emergency. The biochemical treatment tank 6 is internally provided with activated sludge, and the activated sludge is inoculated with commercial aerobic microbial inoculum for carrying out biological treatment on sewage.
The device of the utility model is used for treating and recycling arsenic-containing wastewater, and comprises the following steps:
firstly, industrial wastewater enters an exposure pool 2 through a first water quality monitoring device 101, and the first water quality monitoring device 101 transmits water quality parameters to a display through a control systemThe control system can automatically calculate the average pH value at multiple points according to the inflow rate of the wastewater, and the corresponding content of NaOH to be added into the pH adjusting tank I3 is given; after exposure for a certain time, starting a water pump 701 through input equipment to pump the arsenic-containing waste liquid into a pH adjusting tank I3, adding NaOH into the arsenic-containing waste water, and adjusting the pH to be within the range of 4.0-5.0; when the pH sensor shows that the pH of the waste liquid reaches a threshold value, the control system starts the water pump 702 to pump the waste water into the fixed adsorption bed 4 and ZrO in the filler pipeline2The adsorption of As is realized, and the waste liquid after the adsorption is sent to a pH adjusting tank II5 through a water pump 703; the pH is adjusted to 7-7.5 by adding a specific amount of NaOH, and after the pH sensor shows that the pH of the waste liquid reaches a threshold value, the waste liquid is introduced into a biochemical treatment tank 6 filled with activated sludge through a control system by a water pump 704; after a certain time, the wastewater in the biochemical treatment tank 6 is discharged through the second water quality monitor 102 and the water pump 705, wherein the second water quality monitor 102 feeds back the water quality parameters to the control system in real time, and when the discharge standard is not met, the control system automatically stops the operation of the water pump 705 and gives an alarm.
The arsenic element recovery method comprises the following steps:
after a certain volume of wastewater is adsorbed, the water pump 702 can be suspended, and the filler pipe 403 can be detached and replaced; for the As-adsorbed filler pipeline, filter parts at two ends are taken out, and ZrO is collected2A filler; ZrO to which As is adsorbed2The filler is eluted by NaOH at 90 ℃, the concentration of the NaOH is 0.5mol/L, and arsenic salt and reusable ZrO can be obtained2A filler; the arsenic salt is roasted at 1100 ℃ and reduced by conventional carbon to obtain simple substance arsenic.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (7)
1. The utility model provides a processing and recovery unit of arsenic waste water which characterized in that: the device comprises an operation terminal, a control system and processing equipment, wherein the processing equipment comprises an exposure pool (2), a pH adjusting pool I (3), a fixed adsorption bed (4), a pH adjusting pool II (5) and a biochemical treatment pool (6) which are sequentially connected through pipelines;
a first water quality monitoring device (101) is arranged at the front section of the liquid inlet (201) of the exposure tank, and a second water quality monitoring device (102) is arranged at the rear end of the liquid outlet (602) of the biochemical treatment tank; the pH adjusting tank I liquid outlet (302) and the pH adjusting tank II liquid outlet (502) are both provided with pH sensors; water pumps (701, 702, 703 and 704) are sequentially arranged on pipelines among the exposure pool (2), the pH adjusting pool I (3), the fixed adsorption bed (4), the pH adjusting pool II (5) and the biochemical treatment pool (6);
at least one filler pipeline (403) is arranged in the fixed adsorption bed (4), an upper joint part (406) and a lower joint part (407) which can be mutually matched and connected are respectively arranged at two ends of the filler pipeline (403), the upper joint part (406) is used for being matched and connected with the lower joint part (407) or a liquid inlet (401) of the upper-layer filler pipeline, and the lower joint part (407) is used for being matched and connected with the upper joint part (406) or a liquid outlet (402) of the lower-layer filler pipeline;
the operation terminal comprises a display and an input device which are connected with the control circuit, the pH sensor, the first water quality monitoring device (101), the second water quality monitoring device (102) and the water pump (701, 702, 703, 704 and 705) are all connected to the control system as input end communication, the display is used for displaying the result of the water quality monitoring device and the parameters of the pH sensor, and the input device can remotely control the operation state of the water pump through the control system.
2. The apparatus for treating and recycling arsenic-containing wastewater as claimed in claim 1, wherein the fixed adsorbent bed (4) is provided with an operation door on the side wall, and two opposite longitudinal grooves are formed on the inner wall, the grooves are fixed with a plurality of sliding blocks (404) through bolts, each sliding block (404) is correspondingly arranged on different positions of the groove according to the position of each filler pipeline (403), and the sliding blocks (404) are provided with supporting members (405) for supporting the filler pipelines (403).
3. The apparatus of claim 1, wherein: the inner diameter of the upper joint part (406) of the filler pipeline is larger than that of the lower joint part (407), an internal thread is arranged on the upper joint part (406), and an external thread is arranged on the lower joint part (407).
4. The apparatus of claim 1, wherein: and two ends of the filler pipeline (403) are provided with detachable filter elements (408).
5. The apparatus of claim 1, wherein: the filler in the filler pipeline (403) is ZrO with the grain diameter of 20-30nm2And (3) granules.
6. The apparatus of claim 1, wherein: the exposure pool (2), the pH adjusting pool I (3), the fixed adsorption bed (4), the pH adjusting pool II (5) and the biochemical treatment pool (6) are respectively provided with liquid outlets (202, 302, 402, 502 and 602), and the liquid outlets (202, 302, 402, 502 and 602) are respectively provided with a valve.
7. The apparatus of claim 1, wherein: and activated sludge is arranged in the biochemical treatment tank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921044708.1U CN210595677U (en) | 2019-07-05 | 2019-07-05 | Arsenic-containing wastewater treatment and recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921044708.1U CN210595677U (en) | 2019-07-05 | 2019-07-05 | Arsenic-containing wastewater treatment and recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210595677U true CN210595677U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921044708.1U Expired - Fee Related CN210595677U (en) | 2019-07-05 | 2019-07-05 | Arsenic-containing wastewater treatment and recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210595677U (en) |
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2019
- 2019-07-05 CN CN201921044708.1U patent/CN210595677U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qi Jianying Inventor after: Wang Shengwu Inventor after: Fan Fang Inventor before: Wang Shengwu Inventor before: Qi Jianying Inventor before: Fan Fang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220802 Address after: 510535 No. 18, Ruihe Road, Huangpu District, Guangzhou, Guangdong Patentee after: SOUTH CHINA INSTITUTE OF ENVIRONMENTAL SCIENCES. MEE Address before: 523176 3rd floor, building B, Jinniu Industrial Zone, wuheng Road, Jinniu new village, Jinniu group, Beiyong village, Daojiao Town, Dongguan City, Guangdong Province Patentee before: GUANGDONG HUAZHUN TESTING TECHNOLOGY Co.,Ltd. Patentee before: SOUTH CHINA INSTITUTE OF ENVIRONMENTAL SCIENCES. MEE |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |