Switchable feed water treatment intensive system

Abstract

The utility model discloses a switchable feed water treatment intensive system, belongs to the technical field of water treatment, and solves the problems of large occupied area and high investment cost of an existing water plant. The device comprises a pretreatment system, a mixing system, a flocculation system, a precipitation system and a switching channel which are sequentially connected, wherein a first gate and a second gate are arranged on the switching channel; the switching channel is connected to an ozone contact tank through a first gate, the ozone contact tank is connected with a filtering system, and the filtering system is connected with a clean water tank; the switching channel is connected to a rapid filter system through a second gate; the rapid filter system is connected with a clean water tank. Due to the intensive design, connecting pipelines between the structures can be saved, the head loss is reduced, the operation cost is reduced, and operation management is facilitated; and the engineering design efficiency and the construction efficiency can be effectively improved, the occupied area is reduced, the engineering investment is reduced, and the water plant construction period is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and in particular relates to a switchable intensive water supply treatment system. Background Art

[0002] Generally, a water plant includes 6-7 structures and buildings. The distance between these 6-7 structures and buildings is generally greater than 5m or even 10m. This requires a relatively large site for construction. The cost of building new water plants in some small and medium-sized cities is relatively high. Therefore, it is necessary to comprehensively consider factors such as the scale of the water plant, project investment, and project cycle. Utility Model Content

[0003] The utility model aims to provide a switchable intensive water supply treatment system to solve the problems of large floor space and high investment cost of existing water plants.

[0004] The technical solution of the utility model is: a switchable intensive water treatment system, comprising a pretreatment system, a mixing system, a flocculation system, a sedimentation system and a switching channel connected in sequence, wherein a first gate and a second gate are arranged on the switching channel; the switching channel is connected to an ozone contact tank through the first gate, the ozone contact tank is connected to a filtration system, and the filtration system is connected to a clear water tank; the switching channel is connected to a rapid filter tank system through the second gate, and the rapid filter tank system is connected to a clear water tank.

[0005] As a further improvement of the utility model, the pretreatment system adopts a grid pretreatment system, including an inlet pipe, an inlet pool, an inlet channel and an outlet channel. The inlet pipe is connected to the bottom of the inlet pool, the inlet pool is connected to the inlet channel, and the inlet channel is connected to the outlet channel.

[0006] As a further improvement of the utility model, the flocculation system adopts a grid flocculation system, including a flocculation reaction zone and a water outlet zone connected to each other, the flocculation reaction zone is connected to a plurality of mud discharge branch pipes, and the plurality of mud discharge branch pipes are connected to a mud discharge main pipe.

[0007] As a further improvement of the utility model, the input end of the mud discharge branch pipe is connected with a perforated pipe.

[0008] As a further improvement of the present invention, the sedimentation system adopts an inclined tube sedimentation system, including a sedimentation area, a water outlet trough, a mud discharge pit and a mud discharge pipe. There are multiple water outlet troughs and they are arranged above the sedimentation area. A mud discharge pit is provided at the bottom of the sedimentation area, and the input end of the mud discharge pipe is connected to the mud discharge pit.

[0009] As a further improvement of the utility model, two input branch pipes are provided at the input end of the mud discharge pipe, and one input branch pipe is provided in each mud discharge pit.

[0010] As a further improvement of the utility model, the rapid filter tank system is connected with a water distribution pipe, a rapid filter water outlet pipe and a rapid filter wastewater pipe, the water distribution pipe is connected to the second gate, and the rapid filter water outlet pipe is connected to the clean water tank.

[0011] As a further improvement of the present invention, the filtration system adopts a single-sided V-shaped pool filtration system, including a water distribution main channel, a V-shaped groove and a wastewater drainage channel connected in sequence, the V-shaped groove is connected to a filter outlet pipe, the filter outlet pipe is connected to a clean water pool, and the wastewater drainage channel is connected to a filter wastewater pipe.

[0012] As a further improvement of the utility model, the clean water tank is connected with a main water outlet pipe.

[0013] As a further improvement of the utility model, the pretreatment system, the mixing system, the flocculation system, the sedimentation system, the switching channel, the rapid filtration tank system, the ozone contact tank and the filtration system are arranged above the ground; and the clear water tank is arranged below the ground.

[0014] The utility model combines the two processing systems and switches them through switching channels and the first gate and the second gate. Compared with the prior art, the utility model has the following advantages:

[0015] 1. Intensive design can save connecting pipes between structures, reduce head loss, reduce operating costs, and facilitate operation management; it can also effectively improve engineering design efficiency and construction efficiency, which is conducive to reducing land occupation, reducing engineering investment, and shortening the water plant construction period.

[0016] 2. The utility model can flexibly switch between two treatment processes. By analyzing the raw water quality and comparing the effluent water quality indicators, it can choose to perform rapid filtration or fine filtration, which can adapt to certain changes in water quality and water volume, greatly shorten the working cycle, reduce operating costs, simplify operation and management, and improve water treatment efficiency. The process is flexible in operation and can adapt to certain changes in water quality and water volume. It can effectively solve the problem that water quality fluctuations bring impacts to water treatment structures and affect effluent water quality.

[0017] 3. The utility model has significant advantages in small towns and small and medium-sized water plants and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a plan layout diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the connection relationship between the clean water tank and the rapid filter tank system in the utility model;

[0020] Figure 3 It is a schematic diagram of the connection relationship between the clean water tank and the filtration system in the utility model;

[0021] Figure 4 It is an elevation view of the pretreatment system in the utility model;

[0022] Figure 5 It is the layout diagram of the mud discharge branch pipe and the perforated pipe in the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the mud discharge branch pipe and the perforated pipe in the utility model;

[0024] Figure 7 It is an elevation view of the inclined tube sedimentation system in the utility model;

[0025] Figure 8 It is the layout diagram of the mud discharge pipe and the input branch pipe in the utility model;

[0026] Fig. 9 It is a schematic diagram of the structure of the mud discharge pipe and the input branch pipe in the utility model;

[0027] Fig.10 It is an elevation view of a single-sided V-shaped pool filtration system in the utility model.

[0028] In the figure: 1-pretreatment system; 101-water inlet pipe; 102-water inlet channel; 103-grid slag channel; 104-slag pipe; 105-slag well; 106-water outlet channel; 107-water inlet pool; 108-grid; 2-mixing system; 3-flocculation system; 301-flocculation reaction zone; 302-water outlet zone; 303-mud discharge branch pipe; 304-perforated pipe; 305-mud discharge main pipe; 4-sedimentation system; 401-sedimentation zone; 402-water outlet tank; 403-mud discharge pit; 404-mud discharge pipe ;405-input branch pipe;5-switching channel;501-first gate;502-second gate;6-rapid filter system;601-rapid filter wastewater pipe;602-water distribution pipe;603-rapid filter outlet pipe;7-ozone contact tank;701-ozone contact tank water inlet hole;702-ozone contact tank outlet hole;8-filtration system;801-water distribution main channel;802-V-shaped groove;803-wastewater drainage channel;804-filter outlet pipe;805-filter wastewater pipe;9-clear water tank;901-main outlet pipe. DETAILED DESCRIPTION

[0029] The utility model is described in detail below in conjunction with the accompanying drawings.

[0030] like Figure 1-10As shown, a switchable intensive water treatment system includes a pretreatment system 1, a mixing system 2, a flocculation system 3, a sedimentation system 4 and a switching channel 5 which are connected in sequence, and a first gate 501 and a second gate 502 are provided on the switching channel 5; the switching channel 5 is connected to an ozone contact tank 7 through the first gate 501, the ozone contact tank 7 is connected to a filtration system 8, and the filtration system 8 is connected to a clean water tank 9; the switching channel 5 is connected to a rapid filter system 6 through a second gate 502, and the rapid filter system 6 is connected to the clean water tank 9.

[0031] The pretreatment system 1 adopts a grid pretreatment system, including an inlet pipe 101, an inlet pool 107, an inlet channel 102 and an outlet channel 106. The inlet pipe 101 is connected to the bottom of the inlet pool 107, the inlet pool 107 is connected to two inlet channels 102, and the inlet channel 102 is connected to the outlet channel 106. A grid slag discharge channel 103 is opened in the outlet channel 106, and the grid slag discharge channel 103 is located below the slag discharge port of the grid 108. The slope of the grid slag discharge channel 103 is 0.003-0.005, and the grid slag discharge channel 103 slopes to the end and is connected to the slag discharge well 105 through the slag discharge pipe 104.

[0032] The flocculation system 3 adopts a grid flocculation system, including a flocculation reaction zone 301 and a water outlet zone 302 connected to each other. The flocculation reaction zone 301 is connected to a plurality of mud discharge branch pipes 303 , and the plurality of mud discharge branch pipes 303 are connected to a mud discharge main pipe 305 .

[0033] The input end of the mud discharge branch pipe 303 is connected with a perforated pipe 304, and the mud discharge branch pipe 303 is connected to the middle of the perforated pipe 304. The mud discharge method is siphon mud discharge.

[0034] The sedimentation system 4 adopts an inclined tube sedimentation system, including a sedimentation area 401, a water outlet trough 402, a mud discharge pit 403 and a mud discharge pipe 404. A plurality of water outlet troughs 402 are provided and arranged above the sedimentation area 401. A mud discharge pit 403 is provided at the bottom of the sedimentation area 401. The input end of the mud discharge pipe 404 is connected to the mud discharge pit 403. The mud discharge pipe 404 is connected to the mud discharge main pipe 305.

[0035] The input end of the mud discharge pipe 404 is provided with two input branches 405, and four mud discharge pits 403 are provided, and each mud discharge pit 403 is provided with an input branch pipe 405. The mud discharge method is a "grab bucket type" mud discharge pipe mud discharge, which relies on gravity to achieve mud discharge, which is an energy-saving and environmentally friendly method.

[0036] The rapid filter tank system 6 is connected with a water distribution pipe 602, a rapid filter outlet pipe 603 and a rapid filter waste water pipe 601. The water distribution pipe 602 is connected to the second gate 502, and the rapid filter outlet pipe 603 is connected to the clean water tank 9. The water distribution pipe 602 adopts a "Feng"-shaped pipe.

[0037] The filtration system 8 adopts a unilateral V-shaped pool filtration system, including a water distribution main channel 801, a V-shaped groove 802 and a wastewater drainage channel 803 connected in sequence, the V-shaped groove 802 is connected to a filtered water outlet pipe 804, the filtered water outlet pipe 804 is connected to the clean water pool 9, and the wastewater drainage channel 803 is connected to a filtered wastewater pipe 805. The use of a unilateral V-shaped pool filtration system not only realizes the filtration advantages of the V-shaped filter pool, but also can cooperate with the utility model to achieve intensive layout.

[0038] The clean water tank 9 is connected with a main water outlet pipe 901 .

[0039] The pretreatment system 1, mixing system 2, flocculation system 3, sedimentation system 4, switching channel 5, rapid filter system 6, ozone contact tank 7 and filtration system 8 are arranged above the ground; the clear water tank 9 is arranged below the ground. The top of the clear water tank 9 is 2m below the ground, and the clear water tank 9 is arranged in a superimposed manner below the ozone contact tank 7 and the filtration system 8. The upper and lower superimposed arrangement can meet the water head consumed by the superimposed clear water tank under the filtration system, and solve the problems of limited available land on the project site and demolition outside the factory.

[0040] Embodiment 1,

[0041] Mode I operation process: close the first gate 501, open the second gate 502, and the water flows through the pretreatment system 1, the mixing system 2, the flocculation system 3, the sedimentation system 4, the switching channel 5, the rapid filter system 6, and the clear water tank 9 in sequence.

[0042] The specific process is as follows: Figure 2 As shown, the raw water enters the water inlet pool 107 and the water inlet channel 102 in sequence from the water inlet pipe 101, enters the water outlet channel 106 after being treated by the screen 108, and is discharged from the water hole and enters the mixing system 2. The screen residue of the screen 108 falls into the screen residue discharge channel 103 and is discharged to the residue discharge pipe 104 along the slope, and is discharged to the screen residue discharge well 105 through the residue discharge pipe 104. The mixing system 2 adopts mechanical stirring and mixing, which is in the form of series plug flow. The effluent of the mixing system 2 enters the flocculation reaction zone 301, enters the water outlet zone 302 after flocculation treatment, and then enters the sedimentation zone 401 from the lower end of the pool wall. The sludge in the flocculation system 3 enters the mud discharge branch pipe 303 through the perforated pipe 304, and then gathers to the mud discharge main pipe 305 for discharge. The water after sedimentation in the sedimentation area 401 is discharged from the outlet trough 402 to the switching channel 5, and enters the rapid filter system 6 through the second gate 502 and the water distribution pipe 602. The clean water obtained after treatment enters the clean water tank 9 through the rapid filter outlet pipe 603, and finally discharged from the main outlet pipe 901. The wastewater generated by the rapid filter system 6 is discharged from the rapid filter wastewater pipe 601.

[0043] Embodiment 2,

[0044] The inlet conditions are as follows: potassium permanganate index is 4.0~6.0 mg / L, chemical oxygen demand (COD) is 14.0~18.0 mg / L, ammonia nitrogen (NH3-N) is 0.4~0.8 mg / L, and total nitrogen is 0.5~0.9 mg / L.

[0045] After selecting mode I treatment, the effluent water quality indicators are as follows: turbidity less than 0.7NTU, chromaticity less than 15 degrees, no odor, total dissolved solids less than 1000mg / L, potassium permanganate index less than 3.0mg / L, ammonia nitrogen less than 0.45mg / L. The effluent indicators meet the requirements of the "Sanitary Standard for Drinking Water" (GB5749-2022).

[0046] Embodiment 3,

[0047] When mode I cannot meet the effluent quality requirements, it can be switched to mode II. Mode II operation process: close the second gate 502, open the first gate 501, and the water flows through the pretreatment system 1, mixing system 2, flocculation system 3, sedimentation system 4, switching channel 5, ozone contact tank 7, filtration system 8, and clear water tank 9 in sequence.

[0048] The specific process is as follows: the treatment process of raw water in the pretreatment system 1, mixing system 2, flocculation system 3, sedimentation system 4, and switching channel 5 is the same as that in the embodiment. Figure 1 , Figure 3 As shown, the water in the switching channel 5 passes through the first gate 501 and enters the ozone contact tank 7 through the ozone contact tank water inlet hole 701. After being treated, the water is discharged from the ozone contact tank outlet hole 702 at the upper end to the water distribution main channel 801, and then enters the V-shaped groove 802 for filtration treatment. The clean water enters the clean water tank 9 through the filtered water outlet pipe and finally discharges from the main water outlet pipe 901. The wastewater enters the wastewater drainage channel 803 and is discharged from the filtered wastewater pipe 805.

[0049] Embodiment 4,

[0050] The inlet conditions are as follows: the average concentration of potassium permanganate index is 6.0 mg / L, the average concentration of chemical oxygen demand (COD) is 17.0 mg / L, the average concentration of ammonia nitrogen (NH3-N) is 0.7 mg / L, and the average concentration of total nitrogen is 1.2 mg / L.

[0051] After selecting mode II treatment, the effluent water quality indicators are as follows: turbidity less than 0.7NTU, chromaticity less than 15 degrees, no odor, total dissolved solids less than 1000mg / L, potassium permanganate index less than 3mg / L, ammonia nitrogen less than 0.45mg / L. The effluent indicators meet the requirements of the "Sanitary Standard for Drinking Water" (GB5749-2022).

Claims

1. A switchable intensive water treatment system, characterized in that: It comprises a pretreatment system (1), a mixing system (2), a flocculation system (3), a sedimentation system (4) and a switching channel (5) which are connected in sequence, and the switching channel (5) is provided with a first gate (501) and a second gate (502); The switching channel (5) is connected to the ozone contact tank (7) through the first gate (501), the ozone contact tank (7) is connected to the filtration system (8), and the filtration system (8) is connected to the clean water tank (9); The switching channel (5) is connected to the rapid filter system (6) through the second gate (502), and the rapid filter system (6) is connected to the clean water tank (9).

2. A switchable intensive water treatment system according to claim 1, characterized in that: The pretreatment system (1) adopts a grid pretreatment system, comprising a water inlet pipe (101), a water inlet pool (107), a water inlet channel (102) and a water outlet channel (106), wherein the water inlet pipe (101) is connected to the bottom of the water inlet pool (107), the water inlet pool (107) is connected to the water inlet channel (102), and the water inlet channel (102) is connected to the water outlet channel (106).

3. A switchable intensive water treatment system according to claim 1, characterized in that: The flocculation system (3) adopts a grid flocculation system, comprising a flocculation reaction zone (301) and a water outlet zone (302) connected to each other, the flocculation reaction zone (301) being connected to a plurality of mud discharge branch pipes (303), and the plurality of mud discharge branch pipes (303) being connected to a mud discharge main pipe (305).

4. A switchable intensive water treatment system according to claim 3, characterized in that: The input end of the mud discharge branch pipe (303) is connected to a perforated pipe (304).

5. The switchable intensive water treatment system according to claim 1, characterized in that: The sedimentation system (4) adopts an inclined tube sedimentation system, comprising a sedimentation area (401), a water outlet trough (402), a mud discharge pit (403) and a mud discharge pipe (404); a plurality of water outlet troughs (402) are provided and arranged above the sedimentation area (401); a mud discharge pit (403) is provided at the bottom of the sedimentation area (401); and an input end of the mud discharge pipe (404) is connected to the mud discharge pit (403).

6. A switchable intensive water treatment system according to claim 5, characterized in that: The input end of the mud discharge pipe (404) is provided with two input branch pipes (405), and each mud discharge pit (403) is provided with an input branch pipe (405).

7. The switchable intensive water treatment system according to claim 1, characterized in that: The rapid filter system (6) is connected to a water distribution pipe (602), a rapid filter water outlet pipe (603) and a rapid filter wastewater pipe (601); the water distribution pipe (602) is connected to the second gate (502), and the rapid filter water outlet pipe (603) is connected to the clean water tank (9).

8. The switchable intensive water treatment system according to claim 1, characterized in that: The filtration system (8) adopts a single-sided V-shaped pool filtration system, comprising a water distribution main channel (801), a V-shaped groove (802) and a wastewater drainage channel (803) connected in sequence, the V-shaped groove (802) is connected to a filtered water outlet pipe (804), the filtered water outlet pipe (804) is connected to a clean water pool (9), and the wastewater drainage channel (803) is connected to a filtered wastewater pipe (805).

9. The switchable intensive water treatment system according to claim 1, characterized in that: The clean water tank (9) is connected to a main water outlet pipe (901).

10. A switchable intensive water treatment system according to any one of claims 1 to 9, characterized in that: The pretreatment system (1), mixing system (2), flocculation system (3), sedimentation system (4), switching channel (5), rapid filter system (6), ozone contact tank (7) and filtration system (8) are arranged above the ground; the clean water tank (9) is arranged below the ground.

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