CN108529775A - A kind of sewage-treatment plant - Google Patents

A kind of sewage-treatment plant Download PDF

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Publication number
CN108529775A
CN108529775A CN201810371366.8A CN201810371366A CN108529775A CN 108529775 A CN108529775 A CN 108529775A CN 201810371366 A CN201810371366 A CN 201810371366A CN 108529775 A CN108529775 A CN 108529775A
Authority
CN
China
Prior art keywords
filter
filter device
plate
sewage
babinet
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.)
Granted
Application number
CN201810371366.8A
Other languages
Chinese (zh)
Other versions
CN108529775B (en
Inventor
张玲
张蕾
谢远钒
吉日高娃
吉永梅
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.)
Anhui Hemei Environmental Protection Group Co.,Ltd.
Original Assignee
Tianjin Xuyangbenhua Science And Technology 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 Tianjin Xuyangbenhua Science And Technology Co Ltd filed Critical Tianjin Xuyangbenhua Science And Technology Co Ltd
Priority to CN201810371366.8A priority Critical patent/CN108529775B/en
Publication of CN108529775A publication Critical patent/CN108529775A/en
Application granted granted Critical
Publication of CN108529775B publication Critical patent/CN108529775B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Abstract

The application provides a kind of specific technical solution of sewage-treatment plant, which is characterized in that including babinet, water inlet, the first filter device, the second filter device, third filter device, ultrafiltration membrane filter device, filter membrane cleaning plant, water plug and water purifying tank.A kind of sewage-treatment plant of the application, simple in structure, reasonable design, babinet top are equipped with the first filter screen and dirt discharge groove being obliquely installed, avoid blocking of the larger particles to filter device in sewage, improve filter efficiency;Second filter device is equipped with quartz sand filtration layer, is further filtered to sewage;Third filter device is activated carbon filter layer, further improves wastewater treatment efficiency;Activated carbon filter layer is movably arranged on by spring below supporting block, and the amount of storage of activated carbon filter layer top drainage is increased;Equipped with ultrafiltration membrane filter device, filter effect is further improved;Ultrafiltration membrane filter device is equipped with water plug, improves the filter efficiency of ultrafiltration membrane filter device.

Description

A kind of sewage-treatment plant
Technical field
This application involves technical field of sewage, more particularly to a kind of sewage-treatment plant.
Background technology
With the continuous deterioration of China's environment, sewage is also gradually increasing, and therefore, is also solved at urgent need to the purification of sewage Certainly the problem of.For the existing device to sewage purification when to sewage purification, the impurity in sewage is easy to clogging filter screen, into And filtering of the filter screen to sewage is influenced, being smoothed out for purification is influenced, and filter effect is undesirable.
Invention content
The application provides a kind of sewage-treatment plant to solve above-mentioned technical problem.
The application is adopted the technical scheme that:A kind of sewage-treatment plant, which is characterized in that including babinet, water inlet, First filter device, the second filter device, third filter device, membrane filtration device, filter membrane cleaning plant, water plug and net Pond, the babinet left upper portion are equipped with water inlet, and the babinet top is equipped with the first filter device, first filter device Including support plate, vertical web plate, the first filter screen, dirt discharge groove, the second filter screen and blowdown apparatus, the support plate is arranged in case On body right side wall, the vertical web plate setting on the supporting plate, babinet left side wall is fixed on the left of first filter screen On, it is arranged on the right side of first filter screen and is inclined to set higher than right side on the left of vertical web plate top, first strainer, institute It states vertical web plate, support plate and babinet right side wall and forms dirt discharge groove, the second filter screen, second mistake are equipped in the dirt discharge groove Strainer is arc strainer, and the mesh diameter of first filter screen and the second filter screen is equal in magnitude, is equipped in the dirt discharge groove Blowdown apparatus, the blowdown apparatus include rotary shaft, helical blade, driving motor and sewage draining exit, and the rotary shaft setting is the Two filter screen tops, the rotary shaft are equipped with helical blade, and the helical blade is equipped with cleaning hairbrush, and the rotary shaft is worn It crosses babinet side side wall with external drive motors to be connected, another opposing sidewalls of babinet are equipped with sewage draining exit;First filtering Device lower part is equipped with the second filter device, and second filter device includes supporting block and quartz sand filtration layer, the supporting block At left and right sides of the support plate lower part on tank wall, the supporting block is equipped with quartz sand filtration layer, the quartz sand filtration layer for setting Including leakproof metal net mask and quartz sand, second filter device lower part is equipped with third filter device, the third filtering dress It sets including limited block, slide guide bar, multiple springs and activated carbon filter layer, is set on tank wall at left and right sides of the supporting block lower part box There is corresponding limited block, slide guide bar is equipped between the supporting block and limited block, the activated carbon filter layer passes through spring It connect, and is slidably located on slide guide bar with supporting block lower part;Third filter device lower part is equipped with ultrafiltration membrane filter device, The ultrafiltration membrane filter device includes two weather boards, multiple ultrafiltration diaphragm plates, filter membrane cleaning plant and water plug;The water guide Plate is arranged on the face of babinet front and rear sides, and the weather board right end is fixedly connected with wall box, and the weather board left end passes through Tank wall is connected with outside water plug, and the weather board is hollow plate, and the weather board is internally provided with multiple horizontally disposed the One guiding gutter, the ultrafiltration template are arranged in parallel, and with the weather board vertical connection of front and rear sides, the ultrafiltration template includes bottom Plate, web and filter membrane, the bottom plate is hollow plate, and left and right sides are equipped with water-guiding hole, is equipped in the bottom plate and water guide Corresponding multiple second guiding gutters of first guiding gutter in plate, the plate outer side are equipped with web, and the filter membrane is arranged in fibre Dimension net outside, the ultrafiltration membrane filter device top are equipped with filter membrane cleaning plant, and the filter membrane cleaning plant includes fixed plate, connects Extension bar and the clear diaphragm plate of polylith, the fixed plate are connected by connecting rod with activated carbon filter layer, and fixed plate is arranged in the clear diaphragm plate Lower part, and it is dislocated distribution in two rows with ultrafiltration template, the water plug includes diversion pipe, water-supply-pipe and draws water Pump is connected on the left of the diversion pipe and weather board, and the diversion pipe is connected with water-supply-pipe, the water-supply-pipe by suction pump and Water purifying tank is connected.
Further, first strainer angle of inclination is 30 degree.
Further, the filter membrane is high-strength nano grade water filtration membrane.
Further, the clear diaphragm plate is equipped with multiple scraper plates, and the scraper plate is horizontally disposed.
Further, the scraper plate is rubber flap.
The application has the advantages and positive effects of:A kind of sewage-treatment plant of the application, simple in structure, design is closed Reason, babinet top are equipped with the first filter screen and dirt discharge groove that are obliquely installed, avoid in sewage larger particles to filter device It blocks, improves filter efficiency, blowdown apparatus is equipped in dirt discharge groove, convenient for case is discharged in the pollutant in sewage-treatment plant Body;First filter device lower part is equipped with the second filter device, and the second filter device is equipped with quartz sand filtration layer, further to sewage It is filtered, quartz sand filtration layer lower part is equipped with third filter device, and third filter device is activated carbon filter layer, is further carried High wastewater treatment efficiency, activated carbon filter layer are movably arranged on by spring below supporting block, and activated carbon filter layer is increased The amount of storage of top drainage;Filter membrane cleaning plant, work of the activated carbon filter layer in drainage gravity are equipped with below activated carbon filter layer It is up and down under, drive filter membrane cleaning plant to clear up ultrafiltration membrane filter device filter membrane surface;Under third filter device The ultrafiltration membrane filter device of side, further improves filter effect;Ultrafiltration membrane filter device is equipped with water plug, while activated carbon Filter layer presses to lower part drainage under the gravity of drainage, improves the filter efficiency of ultrafiltration membrane filter device.
The technical issues of being solved in addition to the application described above, constitute technical solution technical characteristic and by these Except advantage caused by the technical characteristic of technical solution, wrapped in other technologies problem that the application can solve, technical solution Advantage caused by the other technical characteristics contained and these technical characteristics, makees further details of hereinafter in conjunction with attached drawing Explanation.
Description of the drawings
Fig. 1 is a kind of sewage-treatment plant structural schematic diagram provided by the embodiments of the present application;
Fig. 2 is the first filter device vertical view provided by the embodiments of the present application;
Fig. 3 is blowdown apparatus sectional view provided by the embodiments of the present application;
Fig. 4 is quartz sand filtration schematic diagram of a layer structure provided by the embodiments of the present application;
Fig. 5 is ultrafiltration membrane plate structure schematic diagram provided by the embodiments of the present application;
Fig. 6 is floor structure schematic diagram provided by the embodiments of the present application;
Fig. 7 is ultrafiltration membrane filter device sectional view provided by the embodiments of the present application;
Fig. 8 is filter membrane cleaning plant structural schematic diagram provided by the embodiments of the present application;
Fig. 9 is clear diaphragm plate structural schematic diagram provided by the embodiments of the present application.
In figure:1 babinet;2 water inlets;3 first filter devices;310 support plates;320 vertical web plates;330 first filter screens; 340 dirt discharge grooves;350 second filter screens;360 blowdown apparatus;361 rotary shafts;362 helical blades;362a cleaning hairbrush;363 drive Dynamic motor;364 sewage draining exits;4 second filter devices;410 supporting blocks;420 quartz sand filtration layers;421 leakproof metal net masks;422 Quartz sand;5 third filter devices;510 limited blocks;520 slide guide bars;530 springs;540 activated carbon filter layers;6 ultrafiltration membrance filters Device;610 weather boards;611 first guiding gutters;620 ultrafiltration diaphragm plates;621 bottom plates;621a water-guiding holes;The second guiding gutters of 621b; 622 webs;623 filter membranes;7 filter membrane cleaning plants;710 fixed plates;720 connecting rods;730 clear diaphragm plates;731 scraper plates;8 draw water dress It sets;810 diversion pipes;820 water-supply-pipes;830 suction pumps;9 water purifying tanks
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to Convenient for description, is illustrated only in attached drawing and invent relevant part.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1, the present embodiment is a kind of sewage-treatment plant, which is characterized in that including babinet 1, water inlet 2, One filter device 3, the second filter device 4, third filter device 5, ultrafiltration membrane filter device 6, filter membrane cleaning plant 7, draw water dress Set 8 and water purifying tank 9.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4,1 right side of the babinet is equipped with water inlet 2, and 1 top of the babinet is equipped with first Filter device 3, first filter device 3 include support plate 310, vertical web plate 320, the first filter screen 330, dirt discharge groove 340, Second filter screen 350 and blowdown apparatus 360, the support plate 310 are arranged on 1 right side wall of babinet, and the vertical web plate 320 is set It sets in support plate 310, first filter screen, 330 left side is fixed on 1 left side wall of babinet, first filter screen 330 right side settings are inclined to set in 320 top of vertical web plate, first filter screen, 330 left side higher than right side, and described first 330 angle of inclination of filter screen is 30 degree.The vertical web plate 320, support plate 310 and 1 right side wall of babinet form dirt discharge groove 340, The second filter screen 350 is equipped in the dirt discharge groove 340, second filter screen 350 is arc strainer, first filter screen 330 and second filter screen 350 mesh diameter it is equal in magnitude, blowdown apparatus 360, the blowdown are equipped in the dirt discharge groove 340 Device 360 includes rotary shaft 361, helical blade 362, driving motor 363 and sewage draining exit 364, and the setting of the rotary shaft 361 is the Two filter screens, 350 top, the rotary shaft 361 are equipped with helical blade 362, and the helical blade 362 is equipped with cleaning hairbrush 362a, the rotary shaft 361 are connected across 1 side side wall of babinet with external drive motors 363,1 another opposite side of the babinet Wall is equipped with sewage draining exit 364;First filter device, 3 lower part is equipped with the second filter device 4, and second filter device 4 includes Supporting block 410 and quartz sand filtration layer 420, the setting of the supporting block 410 is at left and right sides of 310 lower part of support plate on tank wall, institute It states supporting block 410 and is equipped with quartz sand filtration layer 420, the quartz sand filtration layer 420 includes leakproof metal net mask 421 and quartz Sand 422,4 lower part of the second filter device be equipped with third filter device 5, the third filter device 5 include limited block 510, Slide guide bar 520, multiple springs 530 and activated carbon filter layer 540 are set on 410 lower part box of the supporting block, 1 left and right sides tank wall There is corresponding limited block 510, slide guide bar 520, the activated carbon mistake are equipped between the supporting block 410 and limited block 510 Filtering layer 540 is connect by spring 530 with 410 lower part of supporting block, and is slidably located on slide guide bar 520;
As shown in Fig. 1, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9,5 lower part of third filter device is filled equipped with ultrafiltration membrance filter 6 are set, the ultrafiltration membrane filter device 6 includes two weather boards 610 and multiple ultrafiltration diaphragm plates 620;The setting of the weather board 610 exists On 1 front and rear sides face of babinet, 610 right end of the weather board is fixedly connected with 1 side wall of babinet, and 610 left end of the weather board passes through Tank wall is connected with outside water plug 8, and the weather board 610 is hollow plate, and the weather board 610 is internally provided with multiple levels and sets The first guiding gutter 611 set, the ultrafiltration diaphragm plate 620 are arranged in parallel, and with 610 vertical connection of the weather board of front and rear sides, institute It includes bottom plate 621, web 622 and filter membrane 623 to state ultrafiltration diaphragm plate 620, and the bottom plate 621 is hollow plate, and left and right sides Equipped with water-guiding hole 621a, led equipped with corresponding with the first guiding gutter 611 in weather board 610 multiple second in the bottom plate 621 Sink 621b, 621 outside of the bottom plate are equipped with web 622, and the setting of the filter membrane 623 is in 622 outside of web, the filter membrane 623 be high-strength nano grade water filtration membrane.6 top of the ultrafiltration membrane filter device is equipped with filter membrane cleaning plant 7, the filter membrane cleaning Device 7 includes fixed plate 710, connecting rod 720 and the clear diaphragm plate 730 of polylith, and the fixed plate 710 passes through connecting rod 720 and activity Charcoal filter layer 540 is connected, and 710 lower part of fixed plate is arranged in the clear diaphragm plate 730, and with ultrafiltration diaphragm plate 620 in two rows or so It is dislocatedly distributed, the clear diaphragm plate 730 is equipped with multiple scraper plates 731, and the scraper plate 731 is horizontally disposed.The scraper plate 731 is rubber Scraper plate.The water plug 8 includes diversion pipe 810, water-supply-pipe 820 and suction pump 830, the diversion pipe 810 and weather board 610 Left side is connected, and the diversion pipe 810 is connected with water-supply-pipe 820, and the water-supply-pipe 820 passes through suction pump 830 and 9 phase of water purifying tank Even.
Embodiments herein is described in detail above, but the content is only the preferred embodiment of the application, It should not be construed as limiting the practical range of the application.All the changes and improvements made by all application ranges according to the application Deng should all still belong within the patent covering scope of the application.

Claims (5)

1. a kind of sewage-treatment plant, which is characterized in that including babinet (1), water inlet (2), the first filter device (3), second Filter device (4), third filter device (5), ultrafiltration membrane filter device (6), filter membrane cleaning plant (7), water plug (8) and net Pond (9), babinet (1) left upper portion are equipped with water inlet (2), and babinet (1) top is equipped with the first filter device (3), First filter device (3) include support plate (310), vertical web plate (320), the first filter screen (330), dirt discharge groove (340), Second filter screen (350) and blowdown apparatus (360), the support plate (310) are arranged on babinet (1) right side wall, described vertical Web plate (320) is arranged in support plate (310), and babinet (1) left side wall is fixed on the left of first filter screen (330) On, it is arranged on the right side of first filter screen (330) and is higher than on the left of vertical web plate (320) top, first filter screen (330) Right side is inclined to set, and the vertical web plate (320), support plate (310) and babinet (1) right side wall form dirt discharge groove (340), institute It states and is equipped with the second filter screen (350) in dirt discharge groove (340), second filter screen (350) is arc strainer, first filtering The mesh diameter of net (330) and the second filter screen (350) is equal in magnitude, and blowdown apparatus is equipped in the dirt discharge groove (340) (360), the blowdown apparatus (360) includes rotary shaft (361), helical blade (362), driving motor (363) and sewage draining exit (364), on the second filter screen (350) top, the rotary shaft (361) is equipped with helical blade for rotary shaft (361) setting (362), the helical blade (362) is equipped with cleaning hairbrush (362a), and the rotary shaft (361) passes through babinet (1) side side Wall is connected with external drive motors (363), and another opposing sidewalls of the babinet (1) are equipped with sewage draining exit (364);First filtering Device (3) lower part is equipped with the second filter device (4), and second filter device (4) includes supporting block (410) and quartz sand filtration Layer (420), supporting block (410) setting is on the tank wall of support plate (310) lower part left and right sides, on the supporting block (410) Equipped with quartz sand filtration layer (420), the quartz sand filtration layer (420) includes leakproof metal net mask (421) and quartz sand (422), the second filter device (4) lower part is equipped with third filter device (5), and the third filter device (5) includes limit Block (510), slide guide bar (520), multiple springs (530) and activated carbon filter layer (540), supporting block (310) lower part box (1) left and right sides tank wall is equipped with corresponding limited block (510), is set between the supporting block (310) and limited block (510) There are slide guide bar (520), the activated carbon filter layer (540) to be connect with supporting block (310) lower part by spring (530), and slides It is set on slide guide bar (520);
Third filter device (5) lower part is equipped with ultrafiltration membrane filter device (6), and the ultrafiltration membrane filter device (6) includes two A weather board (610) and multiple ultrafiltration diaphragm plates (620);The weather board (610) is arranged on babinet (1) front and rear sides face, institute It states weather board (610) right end to be fixedly connected with babinet (1) side wall, weather board (610) left end draws water across tank wall with outside Device (8) is connected, and the weather board (610) is hollow plate, and the weather board (610) is internally provided with multiple horizontally disposed first Guiding gutter (611), the ultrafiltration template (620) are arranged in parallel, and with the weather board of front and rear sides (610) vertical connection, it is described Ultrafiltration template (620) includes bottom plate (621), web (622) and filter membrane (623), and the bottom plate (621) is hollow plate, and left Right two sides are equipped with water-guiding hole (621a), are equipped with and the first guiding gutter (611) phase in weather board (610) in the bottom plate (621) Corresponding multiple second guiding gutters (621b), bottom plate (621) outside are equipped with web (622), filter membrane (623) setting On the outside of web (622), ultrafiltration membrane filter device (6) top is equipped with filter membrane cleaning plant (7), the filter membrane cleaning dress It includes fixed plate (710), connecting rod (720) and the clear diaphragm plate of polylith (730) to set (7), and the fixed plate (710) passes through connecting rod (720) be connected with activated carbon filter layer (540), the clear diaphragm plate (730) is arranged fixed plate (710) lower part, and with ultrafiltration template (620) it is dislocated distribution in two rows, the water plug (8) includes diversion pipe (810), water-supply-pipe (820) and draws water It pumps (830), is connected on the left of the diversion pipe (810) and weather board (610), the diversion pipe (810) and water-supply-pipe (820) phase Even, the water-supply-pipe (820) is connected by suction pump (830) with water purifying tank (9).
2. a kind of sewage-treatment plant according to claim 1, it is characterised in that:First filter screen (330) tilts Angle is 30 degree.
3. a kind of sewage-treatment plant according to claim 1, it is characterised in that:The filter membrane (623) is received for high intensity Meter level water filtration membrane.
4. a kind of sewage-treatment plant according to claim 1, it is characterised in that:The clear diaphragm plate (730) is equipped with more A scraper plate (731), the scraper plate (731) are horizontally disposed.
5. a kind of sewage-treatment plant according to claim 4, it is characterised in that:The scraper plate (731) is rubber flap.
CN201810371366.8A 2018-04-24 2018-04-24 Sewage treatment device Active CN108529775B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810371366.8A CN108529775B (en) 2018-04-24 2018-04-24 Sewage treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810371366.8A CN108529775B (en) 2018-04-24 2018-04-24 Sewage treatment device

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CN108529775A true CN108529775A (en) 2018-09-14
CN108529775B CN108529775B (en) 2020-12-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671536A (en) * 2022-04-20 2022-06-28 南通爱米食品有限公司 Water storage tank with water purification effect

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205011516U (en) * 2015-08-26 2016-02-03 北京科慧通智慧科技有限公司 Sewage treatment device
CN206886896U (en) * 2017-04-24 2018-01-16 绍兴良辰园林建设有限公司 A kind of municipal wastewater processing unit
CN206934871U (en) * 2017-07-03 2018-01-30 天津菲克斯环保科技有限公司 Activated charcoal strainer purifier is used in a kind of stream processing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205011516U (en) * 2015-08-26 2016-02-03 北京科慧通智慧科技有限公司 Sewage treatment device
CN206886896U (en) * 2017-04-24 2018-01-16 绍兴良辰园林建设有限公司 A kind of municipal wastewater processing unit
CN206934871U (en) * 2017-07-03 2018-01-30 天津菲克斯环保科技有限公司 Activated charcoal strainer purifier is used in a kind of stream processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114671536A (en) * 2022-04-20 2022-06-28 南通爱米食品有限公司 Water storage tank with water purification effect

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