Underground water integrated treatment device

Abstract

The utility model discloses an integrated underground water treatment device which comprises a water inlet system, a filtering system, a backwashing system, a disinfection system and a cleaning system which are integrated in the same box body, the water inlet system, the backwashing system and the cleaning system are all communicated with the filtering system, and the disinfection system is communicated with the backwashing system. The water inlet system comprises a water inlet pump, a raw water tank and a water supply pump which are communicated through a pipeline, the filtering system comprises a security filter, a ceramic membrane filter and a nanofiltration membrane filter, the ceramic membrane filter and the nanofiltration membrane filter are communicated with the security filter through a lifting pump I, and the ceramic membrane filter is communicated with the nanofiltration membrane filter through a lifting pump II. According to the integrated underground water treatment device disclosed by the utility model, the ceramic membrane filter and the nanofiltration membrane filter are combined for use, so that underground water can be stably and fully purified, and the underground water treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to an integrated groundwater treatment device. Background Art

[0002] Groundwater is an important part of water resources. With the improvement of people's living standards and the continuous development of small town construction, groundwater resources have received special attention. Therefore, groundwater needs to be purified before use.

[0003] Most of the existing groundwater treatment equipment needs to solve some specific pollution problems by adding chemicals. However, the waste generated by treating groundwater by adding chemicals may bring new environmental problems, such as wastewater, solid waste or chemical waste. If not handled properly, it may affect the surrounding ecosystem. Groundwater may contain many different types of pollutants, including heavy metals, organic compounds, etc. Some treatment equipment may only be able to treat specific types of pollutants and cannot cope with diverse pollution. The quality of groundwater may change with time and location. Some treatment equipment may find it difficult to adapt to such fluctuations in water quality, resulting in poor treatment results. Utility Model Content

[0004] The utility model aims to provide an integrated groundwater treatment device, which can stably and fully purify groundwater by combining a ceramic membrane filter with a nanofiltration membrane filter, thereby improving the treatment effect of groundwater.

[0005] To achieve the above-mentioned purpose, the utility model provides an integrated groundwater treatment device, including a water inlet system, a filtration system, a backwashing system, a disinfection system and a cleaning system integrated in the same box, the water inlet system, the backwashing system and the cleaning system are all connected to the filtration system, the disinfection system is connected to the backwashing system, the water inlet system includes a water inlet pump, a raw water tank and a water supply pump connected through a pipeline, the filtration system includes a security filter, a ceramic membrane filter and a nanofiltration membrane filter, the ceramic membrane filter and the nanofiltration membrane filter are both connected to the security filter through a lifting pump 1, the ceramic membrane filter is connected to the nanofiltration membrane filter through a lifting pump 2, the backwashing system includes a water production tank and a backwashing pump connected through a pipeline, the disinfection system includes a sodium hypochlorite tank and a sodium hypochlorite pump connected through a pipeline, and the cleaning system includes a cleaning tank and a cleaning pump connected through a pipeline.

[0006] Preferably, the water outlet of the water inlet pump is connected to the water inlet of the raw water tank, the water inlet of the water supply pump is connected to the water outlet of the raw water tank, the water inlet of the water inlet pump is connected to the outside world, and the water outlet of the water supply pump is connected to the safety filter of the filtration system.

[0007] Preferably, a valve three is provided between the ceramic membrane filter and the lifting pump one of the filtration system, a valve seven is provided between the nanofiltration membrane filter and the lifting pump two, and the nanofiltration membrane filter is connected with the lifting pump one through a valve eight. The ceramic membrane filter and the nanofiltration membrane filter are both self-cleaning filters. The liquid outlet one of the ceramic membrane filter and the nanofiltration membrane filter are both connected with the water production tank, and the liquid outlet two of the ceramic membrane filter and the nanofiltration membrane filter are both connected with the raw water tank. A return water pump is provided between the ceramic membrane filter and the raw water tank.

[0008] Preferably, valve one and valve two are provided between the water supply pump and the safety filter, the pipeline between valve one and valve two is connected with a drain pipe, the water outlet end of the drain pipe is connected with the drain trough, a drain valve is provided on the drain pipe, and lifting pump one is connected with the drain pipe through valve four.

[0009] Preferably, the backwash pump of the backwash system is connected to the backwash port of the ceramic membrane filter, and a valve five is provided between the backwash pump and the ceramic membrane filter.

[0010] Preferably, the backwash system also includes an air compressor and a cold dryer. The air compressor and the cold dryer are connected to valve four and valve nine through a drain pipe. Valve nine is connected to the nanofiltration membrane filter through valve eight. The air compressor is connected to the drain pipe through a short-circuit pipe. A short-circuit valve is provided on the short-circuit pipe. The cold dryer and the short-circuit pipe are connected through the cold dry valve.

[0011] Preferably, the sodium hypochlorite tank of the disinfection system is connected to the drug-adding and water-supplementing pipeline, and the sodium hypochlorite pump is connected to the water production tank.

[0012] Preferably, the liquid inlet of the cleaning box of the cleaning system is connected to the water production tank, a clean water pump is provided between the cleaning box and the water production tank, the water outlet of the cleaning box is connected to the liquid inlet end of the cleaning pump, and the liquid outlet end of the cleaning pump is connected to the safety filter.

[0013] Therefore, the utility model adopts an integrated groundwater treatment device with the above structure, which has a reasonable structure and is integrated as a whole in the same box, reducing the floor space. It utilizes the interception and filtering effect of the security filter to remove some larger particles in the water, ensuring that the subsequent ceramic membrane filter is not damaged by large particles. The ceramic membrane filter has an excellent effect in removing turbidity, and the removal effect of turbidity and pathogenic microorganisms is above 99%. Groundwater is often contaminated with metal ions. The nanofiltration membrane filter's efficient interception effect on small molecules can be used to effectively control the metal ion index and organic pollution of groundwater. By combining the ceramic membrane filter with the nanofiltration membrane filter, the groundwater can be stably and fully purified, thereby improving the treatment effect of groundwater.

[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a layout schematic diagram of a groundwater integrated treatment device of the utility model;

[0016] Figure 2 It is a schematic diagram of the connecting pipelines of a groundwater integrated treatment device of the utility model;

[0017] Figure 3 It is a schematic diagram of the process of filtering and treating groundwater with low turbidity according to the utility model;

[0018] Figure 4 This is a schematic diagram of the process of filtering and treating groundwater with less heavy metal content according to the utility model;

[0019] Figure 5 It is a schematic diagram of the process of filtering and treating groundwater with high turbidity and heavy metal ion content according to the utility model;

[0020] Figure 6 It is a schematic diagram of the process of backwashing the filtration system by the backwashing system of the utility model;

[0021] Figure 7 The utility model is a schematic diagram of a flow chart of a cleaning system for cleaning a filter system.

[0022] Reference numerals:

[0023] 1. Water inlet system; 11. Water inlet pump; 12. Raw water tank; 13. Water supply pump; 14. Valve 1; 15. Valve 2;

[0024] 2. Filtration system; 21. Security filter; 22. Lifting pump 1; 23. Ceramic membrane filter; 24. Valve 3; 25. Valve 4; 26. Valve 6; 27. Nanofiltration membrane filter; 28. Lifting pump 2; 29. ​​Valve 7; 210. Valve 8; 211. Valve 9;

[0025] 3. Backwash system; 31. Water production tank; 32. Backwash pump; 33. Valve 5; 34. Air compressor; 35. Cold dryer; 36. Drain pipe; 37. Short-circuit pipe; 38. Short-circuit valve; 39. Cold dryer valve; 310. Backwash pump;

[0026] 4. Disinfection system; 41. Sodium hypochlorite tank; 42. Sodium hypochlorite pump; 43. Dosing and water supply pipeline;

[0027] 5. Cleaning system; 51. Cleaning tank; 52. Cleaning pump; 53. Clean water pump; 54. Drain pipe; 55. Drain trough; 56. Drain valve. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0029] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Example

[0031] See also Figure 1 to Figure 2 As shown in the figure, the utility model provides an integrated groundwater treatment device, including a water inlet system 1, a filtration system 2, a backwashing system 3, a disinfection system 4 and a cleaning system 5 integrated in the same box, the water inlet system 1, the backwashing system 3 and the cleaning system 5 are all connected to the filtration system 2, and the disinfection system 4 is connected to the backwashing system 3. Groundwater is transported to the filtration system 2 through the water inlet system 1 for filtration, and the disinfection system 4 is used to disinfect and purify the filtered water. The backwashing system 3 and the cleaning system 5 are both used to clean the filtration system 2.

[0032] The water inlet system 1 includes an inlet pump 11, a raw water tank 12 and a water supply pump 13 connected by a pipeline. The raw water tank 12 is provided with a water quality detection device in the prior art, and the water quality detection device detects the pollution degree of the water quality in the raw water tank 12 by the prior art. The water outlet of the inlet pump 11 is connected with the water inlet of the raw water tank 12, the water inlet of the water supply pump 13 is connected with the water outlet of the raw water tank 12, the water inlet of the inlet pump 11 is connected with the outside, and the water outlet of the water supply pump 13 is connected with the security filter 21 of the filtration system 2. The groundwater is transported to the raw water tank 12 by the inlet pump 11, and then the groundwater in the raw water tank 12 is transported to the security filter 21 by the water supply pump 13. A valve 14 and a valve 2 15 are also provided between the water supply pump 13 and the security filter 21. By controlling the opening and closing of the valve 14 and the valve 2 15, the connection between the water supply pump 13 and the security filter 21 is controlled.

[0033] The filtration system 2 includes a security filter 21, a ceramic membrane filter 23 and a nanofiltration membrane filter 27. The ceramic membrane filter 23 and the nanofiltration membrane filter 27 are both connected to the security filter 21 through a lift pump 1 22, and the ceramic membrane filter 23 is connected to the nanofiltration membrane filter 27 through a lift pump 2 28. The ceramic membrane filter 23 or the nanofiltration membrane filter 27 or the ceramic membrane filter 23 and the nanofiltration membrane filter 27 can be selected according to the degree of pollution of the groundwater.

[0034] A valve 3 24 is provided between the ceramic membrane filter 23 and the lifting pump 1 22, a valve 7 29 is provided between the nanofiltration membrane filter 27 and the lifting pump 2 28, and the nanofiltration membrane filter 27 is connected to the lifting pump 1 22 through the valve 8 210. The filtering method used is selected by controlling the opening and closing of the valve 3 24, the valve 7 29 and the valve 8 210. The security filter 21 can perform preliminary filtering of the groundwater and intercept large particles in the groundwater, and the ceramic membrane filter 23 can perform deep filtering of the groundwater, and the removal effect of the turbidity and pathogenic microorganisms of the groundwater reaches more than 99%. The nanofiltration membrane filter 27 can directly remove heavy metal ions, organic compounds, etc. in the groundwater by nanofiltration.

[0035] The ceramic membrane filter 23 and the nanofiltration membrane filter 27 are both self-cleaning filters. The first liquid outlet of the ceramic membrane filter 23 and the nanofiltration membrane filter 27 are both connected to the water production tank 31, and the second liquid outlet of the ceramic membrane filter 23 and the nanofiltration membrane filter 27 are connected to the raw water tank 12. A water return pump 310 is provided between the ceramic membrane filter 23, the nanofiltration membrane filter 27 and the raw water tank 12. The water purified by the filtration system 2 enters the water production tank 31 for disinfection treatment, and the treated water quality can meet the use requirements.

[0036] The backwash system 3 includes a water production tank 31 and a backwash pump 32 connected by a pipeline. The backwash pump 32 of the backwash system 3 is connected to the backwash port of the ceramic membrane filter 23. A valve 33 is provided between the backwash pump 32 and the ceramic membrane filter 23. The water in the water production tank 31 enters the ceramic membrane filter 23 through the backwash pump 32 to clean the ceramic membrane filter 23.

[0037] The backwashing system 3 also includes an air compressor 34 and a cold dryer 35. The air compressor 34 and the cold dryer 35 are both connected to the valve 25 and the valve 211 through the sewage pipe 36. The valve 211 is connected to the nanofiltration membrane filter 27 through the valve 210. The air compressor 34 is connected to the sewage pipe 36 through the short-circuit pipe 37. The short-circuit valve 38 is provided on the short-circuit pipe 37. The cold dryer 35 and the short-circuit pipe 37 are connected through the cold dry valve 39. After the cold dry valve 39 is closed, the short-circuit valve 38 is opened, so that the short-circuit pipe 37 can short-circuit the cold dryer 35. The air compressor 34 is connected to the sewage pipe 36 through the short-circuit pipe 37, and the ceramic membrane filter 23 is evacuated by the air compressor 34, so that the backwashing sewage can enter the raw water tank 12. After the short-circuit valve 38 is closed and the cold-drying valve 39 is opened, the cold-drying machine 35 can be connected to the drain valve, so that the sludge in the ceramic membrane filter 23 enters the cold-drying machine 35 for drying and concentration before being discharged.

[0038] The disinfection system 4 includes a sodium hypochlorite tank 41 and a sodium hypochlorite pump 42 connected by a pipeline. The sodium hypochlorite tank 41 of the disinfection system 4 is connected to a dosing and water replenishing pipeline 43, and the sodium hypochlorite pump 42 is connected to the water production tank 31. Sodium hypochlorite is replenished in the sodium hypochlorite tank 41 through the dosing and replenishing pipeline, and then the sodium hypochlorite is transported to the water production tank 31 through the sodium hypochlorite pump 42 to disinfect the filtered water.

[0039] The cleaning system 5 includes a cleaning tank 51 and a cleaning pump 52 connected by a pipeline. The liquid inlet of the cleaning tank 51 of the cleaning system 5 is connected to the water production tank 31. A clean water pump 53 is provided between the cleaning tank 51 and the water production tank 31. A part of the water in the water production tank 31 enters the cleaning tank 51 through the clean water pump 53 and is stored. When the filter system 2 is contaminated to a certain extent, the water in the cleaning tank 51 is transported to the filter system 2 to clean the filter system 2.

[0040] The water outlet of the cleaning box 51 is connected to the liquid inlet of the cleaning pump 52, and the liquid outlet of the cleaning pump 52 is connected to the security filter 21 through the valve 2 15. The pipeline between the valve 1 14 and the valve 2 15 is connected with a drain pipe 54. The lifting pump 1 22 is connected to the drain pipe 54 through the valve 4 25. The water outlet of the drain pipe 54 is connected to the drain trough 55. The drain pipe 54 is provided with a drain valve 56. The water in the cleaning box 51 enters the security filter 21 through the cleaning pump 52 to clean the security filter 21. The cleaned water then enters the drain trough 55 through the lifting pump 1 22, the valve 4 25, and the drain pipe 54.

[0041] The specific water treatment process is:

[0042] The groundwater is transported to the raw water tank 12 by the water inlet pump 11, and the pollution degree of the water in the raw water tank 12 is detected by the water quality detection device, and then a suitable filtering method is selected.

[0043] See also Figure 3 As shown in the figure, when the turbidity in the groundwater is not high, open valve 14 and valve 2 15, close the drainage valve 56, and the groundwater in the raw water tank 12 is transported to the security filter 21 through the water supply pump 13 for preliminary filtration. Close valve 3 24, valve 4 25, valve 7 29, valve 9 211, open valve 8 210, and the water after preliminary filtration in the security filter 21 enters the nanofiltration membrane filter 27 through the lifting pump 1 22 for deep filtration to remove heavy metal ions, organic compounds, etc. in the groundwater. Open valve 6 26, and the water after deep filtration enters the water production tank 31. The sodium hypochlorite in the sodium hypochlorite tank 41 is transported to the water production tank 31 through the sodium hypochlorite pump 42 to disinfect the water in the water production tank 31. The water treated in the water production tank 31 meets the use requirements.

[0044] See also Figure 4 As shown in the figure, when the heavy metal content in the groundwater is low and does not need to be removed, open valve one 14 and valve two 15, close the drainage valve 56, and the groundwater in the raw water tank 12 is transported to the security filter 21 through the water supply pump 13 for preliminary filtration. Close valve four 25, valve seven 29, valve eight 210, and valve nine 211, open valve three 24, and the water after preliminary filtration in the security filter 21 enters the ceramic membrane filter 27 through the lifting pump one 22 for deep filtration to reduce the turbidity of the groundwater. Open valve six 26, and the water after deep filtration enters the water production tank 31. The sodium hypochlorite in the sodium hypochlorite tank 41 is transported to the water production tank 31 through the sodium hypochlorite pump 42 to disinfect the water in the water production tank 31. The treated water in the water production tank 31 meets the use requirements.

[0045] See also Figure 5 As shown in the figure, when the turbidity and heavy metal ion content in the groundwater are both high, open valve 14 and valve 2 15, close the drain valve, and the groundwater in the raw water tank 12 is transported to the security filter 21 through the water supply pump 13 for preliminary filtration. Close valve 4 25, valve 8 210, and valve 9 211, open valve 3 24 and valve 7 29, and the water after preliminary filtration in the security filter 21 enters the ceramic membrane filter 23 through the lifting pump 1 22 and valve 3 24 to filter and reduce turbidity, and then the water coming out of the ceramic membrane filter 23 enters the nanofiltration membrane filter 27 through the lifting pump 2 28 and valve 7 29 to remove heavy metal ions, open valve 6 26, and the water filtered by the nanofiltration membrane filter 27 enters the water production tank 31, and the sodium hypochlorite in the sodium hypochlorite tank 41 is transported to the water production tank 31 through the sodium hypochlorite pump 42 to disinfect the water in the water production tank 31. The treated water in the water production tank 31 meets the use requirements.

[0046] See also Figure 6As shown in the figure, after the groundwater purification treatment is completed, the backwash system 3 is used to backwash the ceramic membrane filter 23 and the nanofiltration membrane filter 27, the valve six 26 is closed, the valve five 33 is opened, and the water in the water production tank 31 is transported to the ceramic membrane filter 23 and the nanofiltration membrane filter 27 respectively through the backwash pump 32 to clean the ceramic membrane filter 23 and the nanofiltration membrane filter 27, the cold dry valve 39 and the valve seven 29 are closed, the valve three 24, the valve four 25, the valve eight 210, the valve nine 211 and the short-circuit valve 38 are opened, the air compressor 34 is started to vacuum the ceramic membrane filter 23 and the nanofiltration membrane filter 27, and the backwash pump 310 is turned on. The cleaned sewage enters the raw water tank 12 through the backwash pump 310 and is treated together with the groundwater. Then close the short-circuit valve 38, open the cold dryer valve 39, connect the cold dryer 35 with the drain pipe 36, start the cold dryer 35, and allow the sludge in the ceramic membrane filter 23 and the nanofiltration membrane filter 27 to enter the cold dryer 35 for drying and concentration before being discharged, thereby completing the cleaning of the ceramic membrane filter 23 and the nanofiltration membrane filter 27.

[0047] See also Figure 7 As shown in the figure, start the clean water pump 53, open the valve six 26, and a part of the water in the water production tank 31 enters the cleaning tank 51 for storage through the clean water pump 53, close the valve one 14, the valve three 24, the valve eight 210 and the valve nine 211, open the valve two 15, the valve four 25 and the drain valve 56, and the water in the cleaning tank 51 enters the security filter 21 through the cleaning pump 52 and the valve two 15 to clean the security filter 21. The cleaned sewage then enters the drainage trough 55 through the lifting pump one 22, the valve four 25 and the drain pipe 54 to complete the cleaning of the security filter 21.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. An integrated groundwater treatment device, characterized in that: It includes a water inlet system, a filtration system, a backwashing system, a disinfection system and a cleaning system integrated in the same box. The water inlet system, the backwashing system and the cleaning system are all connected to the filtration system, and the disinfection system is connected to the backwashing system. The water inlet system includes a water inlet pump, a raw water tank and a water supply pump connected through a pipeline. The filtration system includes a security filter, a ceramic membrane filter and a nanofiltration membrane filter. The ceramic membrane filter and the nanofiltration membrane filter are both connected to the security filter through a lifting pump 1, and the ceramic membrane filter is connected to the nanofiltration membrane filter through a lifting pump 2. The backwashing system includes a water production tank and a backwashing pump connected through a pipeline. The disinfection system includes a sodium hypochlorite tank and a sodium hypochlorite pump connected through a pipeline. The cleaning system includes a cleaning tank and a cleaning pump connected through a pipeline.

2. The groundwater integrated treatment device according to claim 1, characterized in that: The water outlet of the water inlet pump is connected with the water inlet of the raw water tank, the water inlet of the water supply pump is connected with the water outlet of the raw water tank, the water inlet of the water inlet pump is connected with the outside, and the water outlet of the water supply pump is connected with the safety filter of the filtration system.

3. The groundwater integrated treatment device according to claim 2, characterized in that: A valve three is provided between the ceramic membrane filter and the lifting pump one of the filtration system, a valve seven is provided between the nanofiltration membrane filter and the lifting pump two, and the nanofiltration membrane filter is connected with the lifting pump one through a valve eight. Both the ceramic membrane filter and the nanofiltration membrane filter are self-cleaning filters. The liquid outlet one of the ceramic membrane filter and the nanofiltration membrane filter is connected with the production water tank, and the liquid outlet two of the ceramic membrane filter and the nanofiltration membrane filter is connected with the raw water tank. A return water pump is provided between the ceramic membrane filter, the nanofiltration membrane filter and the raw water tank.

4. The groundwater integrated treatment device according to claim 3, characterized in that: Valve 1 and valve 2 are also arranged between the water supply pump and the safety filter. The pipeline between valve 1 and valve 2 is connected with a drain pipe. The water outlet of the drain pipe is connected with the drain trough. A drain valve is arranged on the drain pipe. Lifting pump 1 is connected with the drain pipe through valve 4.

5. The groundwater integrated treatment device according to claim 1, characterized in that: The backwash pump of the backwash system is connected to the backwash port of the ceramic membrane filter, and a valve five is arranged between the backwash pump and the ceramic membrane filter.

6. The groundwater integrated treatment device according to claim 4, characterized in that: The backwash system also includes an air compressor and a cold dryer. The air compressor and the cold dryer are connected to valve four and valve nine through a drain pipe. Valve nine is connected to the nanofiltration membrane filter through valve eight. The air compressor is connected to the drain pipe through a short-circuit pipe. A short-circuit valve is provided on the short-circuit pipe. The cold dryer and the short-circuit pipe are connected through the cold dry valve.

7. The groundwater integrated treatment device according to claim 1, characterized in that: The sodium hypochlorite tank of the disinfection system is connected to the dosing and water supply pipeline, and the sodium hypochlorite pump is connected to the water production tank.

8. The groundwater integrated treatment device according to claim 1, characterized in that: The liquid inlet of the cleaning box of the cleaning system is connected to the water production tank, a clean water pump is arranged between the cleaning box and the water production tank, the water outlet of the cleaning box is connected to the liquid inlet end of the cleaning pump, and the liquid outlet end of the cleaning pump is connected to the safety filter.

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