CN211972024U

CN211972024U - Greenhouse pesticide wastewater treatment recycling system

Info

Publication number: CN211972024U
Application number: CN201922139433.6U
Authority: CN
Inventors: 于玉彬; 王旭平; 徐融; 李绍伟
Original assignee: Binsheng Environmental Technology Co ltd
Current assignee: Binsheng Environmental Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-11-20
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a greenhouse pesticide waste water treatment recycling system, include raw water system, continuous membrane filtration system, disinfection system (24) and adsorption system (26) that set gradually along the direction of intaking, continuous membrane filtration system is including being connected to raw water system's self-cleaning filter (12), with pressure type membrane filter equipment (15) that self-cleaning filter (12) are established ties and are set up and be connected to the anti-cleaning system of pressure type membrane filter equipment (15). The utility model provides a greenhouse pesticide waste water treatment recycling system reduces pesticide wastewater discharge, can reach the effect of reuse of reclaimed water.

Description

Greenhouse pesticide wastewater treatment recycling system

Technical Field

The utility model belongs to the technical field of sewage treatment, in particular to greenhouse pesticide waste water treatment recycling system.

Background

Along with the improvement of living standard of people, the requirements for vegetables and fruits are also improved, people tend to purchase higher-end and high-quality pollution-free green vegetables and fruits, and the greenhouse soilless culture as a novel agricultural planting technology has multiple advantages while meeting the requirements, so the greenhouse soilless culture technology is gradually favored by vast growers. Due to advanced technology, the soilless culture of the greenhouse cuts off the way of spreading the plant diseases and insect pests by soil, and the phenomenon of the plant diseases and insect pests is light, so that the sprayed pesticide has single component and low concentration, and the influence of the pesticide on the quality of vegetable pollution is minimized. The waste water generated by pesticide sprayed in the greenhouse is collected by a sewage discharge pipeline in the greenhouse and then discharged to an outdoor waste water collecting tank for treatment, under general conditions, SS of the pesticide waste water is difficult to reach the standard after the pesticide waste water is treated by methods such as ozone oxidation or catalytic oxidation, the residues of viruses, bacteria and the like in the waste water are more, the direct discharge can cause the influence on the environment and human bodies after the direct discharge is carried out for a long time, and the waste of water resources is also caused.

Disclosure of Invention

The utility model aims at providing a greenhouse pesticide waste water treatment recycling system reduces the pesticide waste water and discharges, reaches the purpose of reuse of reclaimed water.

Based on the above problem, the utility model provides a technical scheme is:

the utility model provides a greenhouse pesticide waste water treatment recycling system, includes raw water system, continuous membrane filtration system, the disinfection system that disinfects and adsorption system that sets gradually along the direction of intaking, continuous membrane filtration system is including being connected to raw water system's self-cleaning filter, with the pressure type membrane filter equipment that self-cleaning filter series connection set up, and be connected to pressure type membrane filter equipment's anti-cleaning system.

In some embodiments, the raw water system includes a raw water tank and a raw water pipeline connected to the raw water tank, the raw water pipeline is sequentially provided with a raw water pipeline valve, a raw water pump and a raw water pipeline check valve, the raw water tank is internally provided with a first liquid level meter, and the raw water pump and the first liquid level meter are respectively in signal connection with a control device.

In some embodiments, the raw water tank is connected to the water inlet end of the self-cleaning filter through a first water inlet pipe, the water outlet end of the self-cleaning filter is connected to the pressure type membrane filtering device through a second water inlet pipe, the first water inlet pipe is sequentially provided with a first water inlet valve, a water inlet pump and a water inlet check valve, the second water inlet pipe is provided with a second water inlet valve, and the water inlet pump is in signal connection with the control device.

In some embodiments, a water inlet pressure gauge is arranged on a pipeline between the water inlet check valve and the self-cleaning filter.

In some of the embodiments, the drain of self-cleaning filter is connected to the waste water header through first blow off pipe, be equipped with first blowoff valve on the first blow off pipe, pressure type membrane filter equipment is connected to through the second blow off pipe the waste water header, be equipped with the second blowoff valve on the second blow off pipe, adsorption system is connected to waste water header through the third blow off pipe, be equipped with the third blowoff valve on the third blow off pipe, waste water header is connected to the wastewater collection pond.

In some embodiments, the backwashing system comprises a backwashing system and a chemical cleaning system, the backwashing system comprises a backwashing water tank and a backwashing pipeline which connects the backwashing water tank and the water production pipeline of the pressure type membrane filtering device, a first backwashing valve, a backwashing pump, a backwashing check valve and a second backwashing valve are sequentially arranged on the backwashing pipeline along the water flow direction, and a second liquid level meter is arranged in the backwashing water tank;

the water production pipeline is connected to the backwashing water tank through a first branch pipe and is sequentially connected to the sterilization and disinfection system and the adsorption system through a second branch pipe, a first water production valve, a water production pump and a water production check valve are arranged on the water production pipeline, a second water production valve is arranged on the first branch pipe, a third water production valve and a fourth water production valve are respectively arranged at the water inlet and outlet ends of the sterilization and disinfection system on the second branch pipe, and the backwashing pump, a second liquid level meter and the second water production valve are respectively in signal connection with the control system.

In some of these embodiments, the chemical cleaning system includes pickling system and alkali wash system, the pickling system includes the pickling medical kit, and is connected to the pickling pipeline of pickling medical kit, be equipped with first pickling valve, pickling pump and second pickling valve along the liquid medicine flow direction on the pickling pipeline in proper order, the alkali wash system includes the alkali wash medical kit, and is connected to the alkali wash pipeline of alkali wash medical kit, be equipped with first alkali wash valve, alkali wash pump and second alkali wash valve along the liquid medicine flow direction in proper order on the alkali wash pipeline, pickling pipeline, alkali wash pipeline are connected to through the chemical cleaning house steward the product water pipeline, pickling pump, alkali wash pump respectively with control system signal connection.

In some of these embodiments, the germicidal sterilization system is an ultraviolet reactor.

In some of these embodiments, the adsorption system is an activated carbon filter.

In some embodiments, a concentrated water outlet of the pressure type membrane filtration device is connected to the raw water tank through a concentrated water pipe, and a concentrated water valve is arranged on the concentrated water pipe.

Compared with the prior art, the utility model has the advantages that:

1. the greenhouse pesticide wastewater is effectively treated, the discharge of the pesticide wastewater is reduced, the environment pollution is avoided, and even the human health is influenced;

2. the pesticide wastewater can be recycled after being treated, so that water resources are saved, and economic expenditure is reduced;

3. solves the problems that SS does not reach the standard and virus and bacteria remain in the pesticide wastewater treatment process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a process flow diagram of a greenhouse pesticide wastewater treatment and recycling system of the utility model;

wherein:

1. a raw water pipeline; 2. a raw water pipeline valve; 3. a raw water pump; 4. a raw water line check valve; 5. a raw water tank; 6. a first liquid level meter; 7. a first water inlet pipe; 8. a first water inlet valve; 9. a water inlet pump; 10. a water inlet check valve; 11. a water inlet pressure gauge; 12. a self-cleaning filter; 13. a second water inlet pipe; 14. a second water inlet valve; 15. a pressure type membrane filtration device; 16. a concentrated water pipe; 17. a concentrated water valve; 18. a water production pipeline; 19. a first water producing valve; 20. a first branch pipe; 21. a second water production valve; 22. a second branch pipe; 23. a third water producing valve; 24. a sterilization and disinfection system; 25. a fourth water production valve; 26. an adsorption system; 27. a backwash water tank; 28. a second level gauge; 29. backwashing the pipeline; 30. a first backwash valve; 31. a backwash pump; 32. a backwash check valve; 33. a second backwash valve; 34. chemically cleaning the main pipe; 35. acid washing medicine chest; 36. pickling a pipeline; 37. a first acid wash valve; 38. a pickling pump; 39. a second acid washing valve; 40. an alkali washing medicine box; 41. washing a pipeline with alkali; 42. a first caustic wash valve; 43. an alkaline washing pump; 44. a second caustic wash valve; 45. a first drain pipe; 46. a first waste valve; 47. a main wastewater pipe; 48. a second sewage draining pipe; 49. a second blowoff valve; 50. a third blow-off pipe; 51. a third blowoff valve; 52. a water production pump; 53. produce water check valve.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

Refer to fig. 1, for the utility model discloses a schematic structure diagram provides a greenhouse pesticide waste water treatment recycling system, it includes the raw water system, continuous membrane filtration system, disinfection system 24 that disinfects, and adsorption system 26 that set gradually along the direction of intaking, continuous membrane filtration system is including the self-cleaning filter 12 that is connected to raw water system, the pressure type membrane filter equipment 15 that sets up with self-cleaning filter 12 establishes ties, and be connected to pressure type membrane filter equipment 15's anti-cleaning system, wherein self-cleaning filter 12, pressure type membrane filter equipment 15 are prior art, the utility model discloses no longer describe repeatedly.

Specifically, former water system includes former water tank 5, and is connected to former water tank 5's former water pipeline 1, is equipped with former water pipeline valve 2, raw water pump 3 in proper order on former water pipeline 1, and former water pipeline check valve 4, is equipped with first level gauge 6 in former water tank 5, and raw water pump 3, first level gauge 6 are respectively in controlling means signal connection, and the connection between raw water pump 3, first level gauge 6 and the controlling means is prior art, the utility model discloses no longer describe repeatedly.

The raw water tank 5 is connected to the water inlet end of the self-cleaning filter 12 through a first water inlet pipe 7, the water outlet end of the self-cleaning filter 12 is connected to the water inlet end of the pressure type membrane filtering device 15 through a second water inlet pipe 13, a first water inlet valve 8, a water inlet pump 9 and a water inlet check valve 10 are sequentially arranged on the first water inlet pipe 7, a second water inlet valve 14 is arranged on the second water inlet pipe 13, and the water inlet pump 9 is in signal connection with the control device.

And a water inlet pressure gauge 11 is arranged on a pipeline between the water inlet check valve 10 and the self-cleaning filter 12 and used for detecting the pressure of the first water inlet pipe 7.

First level gauge 6 adopts two point type level gauges, and when former water tank 5 was in middle liquid level, former water pump 3 and intake pump 9 normal operating, when former water tank 5 was in high liquid level, the stop work of former water pump 3, intake pump 9 normal operating, when former water tank 5 was in low liquid level, intake pump 9 stop work, and the operating condition of former water pump 3, intake pump 9 is controlled through controlling means to the normal operating of former water pump 3.

The self-cleaning filter 12 is used for removing large-particle pollutants in the inlet water of the membrane system, such as leaves, stems and the like of crops, and preventing the membrane module from being blocked and damaged by the large-particle pollutants, in this case, the filtering precision of the self-cleaning filter 12 is 400-. The flow is not stopped during the back flushing, the cleaning and filtering time is 10-60/s, the water loss of the cleaning and filtering accounts for 0.08-0.6% of the water amount to be filtered, and the back flushing pressure is 1.0-1.6 MPa. Pressure type membrane filter equipment 15 adopts the high antipollution type of unique structure, the hollow fiber membrane original paper of high hydrophilicity PTFE material, can effectively get rid of impurity such as bacterium, microorganism and suspended solid, and the play water is limpid and transparent, turbidity is close to zero.

In order to collect sewage generated in the wastewater treatment process, a sewage discharge port of the self-cleaning filter 12 is connected to a wastewater main 47 through a first sewage discharge pipe 45, a first sewage discharge valve 46 is arranged on the first sewage discharge pipe 45, the pressure type membrane filtering device 15 is connected to the wastewater main 47 through a second sewage discharge pipe 48, a second sewage discharge valve 49 is arranged on the second sewage discharge pipe 48, the adsorption system 26 is connected to the wastewater main 47 through a third sewage discharge pipe 50, a third sewage discharge valve 51 is arranged on the third sewage discharge pipe 50, and the wastewater main 47 is connected to a wastewater collection pool. The concentrated water outlet of the pressure type membrane filtering device 15 is connected to the raw water tank 5 through a concentrated water pipe 16, and a concentrated water valve 17 is arranged on the concentrated water pipe 16.

The backwashing system is used for cleaning the hollow fiber membrane in the pressure type membrane filtering device 15 and comprises a backwashing system and a chemical cleaning system, the backwashing system comprises a backwashing water tank 27 and a backwashing pipeline 29 which is connected with the backwashing water tank 27 and the water production pipeline 18 of the pressure type membrane filtering device 15, a first backwashing valve 30, a backwashing pump 31, a backwashing check valve 32 and a second backwashing valve 33 are sequentially arranged on the backwashing pipeline 29 along the water flow direction, and a second liquid level meter 28 is arranged in the backwashing water tank 27; the water production pipeline 18 is connected to the backwashing water tank 27 through the first branch pipe 20, and is connected to the sterilization and disinfection system 24 through the second branch pipe 22 in sequence, the adsorption system 26, the water production pipeline 18 is provided with a first water production valve 19, a water production pump 52 and a water production check valve 53, the first branch pipe 20 is provided with a second water production valve 21, the second branch pipe 22 is provided with a third water production valve 23 and a fourth water production valve 25 at the water inlet and outlet end of the sterilization and disinfection system 24, the backwashing pump 31, the second liquid level meter 28, the second water production valve 21 (which is an electric valve) and the water production pump 52 are respectively connected with the control system through signals.

The water produced by the pressure type membrane filtering device 15 preferentially enters the backwashing water tank 27 under the suction action of the water producing pump 52, when the water level in the backwashing water tank 27 is high, the second water producing valve 21 is closed, the water feeding is stopped, the produced water enters the sterilization and disinfection system 24 for treatment, and meanwhile, the concentrated water of the pressure type membrane filtering device 15 enters the raw water system for circular treatment. The backwashing period of the hollow fiber membrane in the pressure type membrane filtering device 15 is 60min-120min per operation, the backwashing is 60-120s, the chemical cleaning period is one time of cleaning by using one or more medicaments per 30-60d of operation, and the cleaning time is 1-3 h. The acid is generally hydrochloric acid or citric acid, the alkali is sodium hydroxide, and the backwashing water and the chemical cleaning wastewater in the backwashing system are discharged to a wastewater collection tank.

The chemical cleaning system comprises an acid cleaning system and an alkali cleaning system, the acid cleaning system comprises an acid cleaning medicine box 35 and an acid cleaning pipeline 36 connected to the acid cleaning medicine box 35, a first acid cleaning valve 37, an acid cleaning pump 38 and a second acid cleaning valve 39 are sequentially arranged on the acid cleaning pipeline 36 along the flow direction of liquid medicine, the alkali cleaning system comprises an alkali cleaning medicine box 40 and an alkali cleaning pipeline 41 connected to the alkali cleaning medicine box 40, a first alkali cleaning valve 42, an alkali cleaning pump 43 and a second alkali cleaning valve 44 are sequentially arranged on the alkali cleaning pipeline 41 along the flow direction of liquid medicine, the acid cleaning pipeline 36 and the alkali cleaning pipeline 41 are connected to the water production pipeline 18 through a chemical cleaning main pipe 34, the acid cleaning pump 38 and the alkali cleaning pump 43 are respectively in signal connection with a control system, the acid cleaning system is automatically controlled through the control system, and the alkali cleaning system.

In this embodiment, the sterilization and disinfection system 24 is an ultraviolet reactor, which has a fast disinfection speed and a high disinfection rate, does not increase byproducts such as AOC and BDOC which damage the biological stability of water quality, and can reduce odor and degrade trace organic pollutants, and can prevent the residual disinfectant in the effluent from damaging crops or aquatic organisms or affecting the growth of the crops or aquatic organisms.

The adsorption system 26 is an activated carbon filter, and the activated carbon has a large specific surface area, developed pores and good adsorption performance on organic matters, so that residual organic matters in pesticide wastewater can be completely adsorbed. And regenerating the saturated activated carbon by using an alkali solution, discharging the regenerated waste liquid into a waste water collecting tank, and recycling the regenerated activated carbon.

The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable one skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The greenhouse pesticide wastewater treatment and recycling system is characterized in that: including raw water system, continuous membrane filtration system, disinfection system (24) and adsorption system (26) that set gradually along the direction of intaking, continuous membrane filtration system including be connected to raw water system's self-cleaning filter (12), with pressure type membrane filter equipment (15) that self-cleaning filter (12) series connection set up, and be connected to the anti-cleaning system of pressure type membrane filter equipment (15).

2. The greenhouse pesticide wastewater treatment and recycling system of claim 1, characterized in that: the raw water system comprises a raw water tank (5) and a raw water pipeline (1) connected to the raw water tank (5), a raw water pipeline valve (2), a raw water pump (3) and a raw water pipeline check valve (4) are sequentially arranged on the raw water pipeline (1), a first liquid level meter (6) is arranged in the raw water tank (5), and the raw water pump (3) and the first liquid level meter (6) are respectively connected with a control device through signals.

3. The greenhouse pesticide wastewater treatment and recycling system of claim 2, characterized in that: former water tank (5) are connected to through first inlet tube (7) the end of intaking of self-cleaning filter (12), the play water end of self-cleaning filter (12) is connected to through second inlet tube (13) pressure type membrane filter equipment (15), be equipped with first inlet valve (8), intake pump (9) and intake check valve (10) on first inlet tube (7) in proper order, be equipped with second inlet valve (14) on second inlet tube (13), intake pump (9) with controlling means signal connection.

4. The greenhouse pesticide wastewater treatment and recycling system of claim 3, characterized in that: and a water inlet pressure gauge (11) is arranged on a pipeline between the water inlet check valve (10) and the self-cleaning filter (12).

5. The greenhouse pesticide wastewater treatment and recycling system of claim 3, characterized in that: the drain of self-cleaning filter (12) is connected to waste water house steward (47) through first blow off pipe (45), be equipped with first blowoff valve (46) on first blow off pipe (45), pressure type membrane filter equipment (15) are connected to through second blow off pipe (48) waste water house steward (47), be equipped with second blowoff valve (49) on second blow off pipe (48), adsorption system (26) are connected to waste water house steward (47) through third blow off pipe (50), be equipped with third blowoff valve (51) on third blow off pipe (50), waste water house steward (47) are connected to the waste water collecting pit.

6. The greenhouse pesticide wastewater treatment and recycling system of claim 1, characterized in that: the backwashing system comprises a backwashing system and a chemical cleaning system, the backwashing system comprises a backwashing water tank (27) and a backwashing pipeline (29) which is connected with the backwashing water tank (27) and a water production pipeline (18) of the pressure type membrane filtering device (15), a first backwashing valve (30), a backwashing pump (31), a backwashing check valve (32) and a second backwashing valve (33) are sequentially arranged on the backwashing pipeline (29) along the water flow direction, and a second liquid level meter (28) is arranged in the backwashing water tank (27);

the water production pipeline (18) is connected to the backwashing water tank (27) through a first branch pipe (20) and is sequentially connected to the sterilization and disinfection system (24) and the adsorption system (26) through a second branch pipe (22), a first water production valve (19), a water production pump (52) and a water production check valve (53) are arranged on the water production pipeline (18), a second water production valve (21) is arranged on the first branch pipe (20), a third water production valve (23) and a fourth water production valve (25) are respectively arranged at the water inlet and outlet ends of the sterilization and disinfection system (24) on the second branch pipe (22), and the backwashing pump (31), the second liquid level meter (28), the second water production valve (21) and the water production pump (52) are respectively connected with a control system through signals.

7. The greenhouse pesticide wastewater treatment and recycling system of claim 6, characterized in that: the chemical cleaning system comprises an acid cleaning system and an alkali cleaning system, the acid cleaning system comprises an acid cleaning medicine box (35) and is connected to an acid cleaning pipeline (36) of the acid cleaning medicine box (35), a first acid cleaning valve (37), an acid cleaning pump (38) and a second acid cleaning valve (39) are sequentially arranged on the acid cleaning pipeline (36) along the flow direction of liquid medicine, the alkali cleaning system comprises an alkali cleaning medicine box (40) and an alkali cleaning pipeline (41) connected to the alkali cleaning medicine box (40), a first alkali cleaning valve (42), an alkali cleaning pump (43) and a second alkali cleaning valve (44) are sequentially arranged on the alkali cleaning pipeline (41) along the flow direction of liquid medicine, the acid cleaning pipeline (36) and the alkali cleaning pipeline (41) are connected to the water production pipeline (18) through a chemical cleaning main pipe (34), and the acid cleaning pump (38) and the alkali cleaning pump (43) are respectively in signal connection with a control system.

8. The greenhouse pesticide wastewater treatment and recycling system of claim 1, characterized in that: the sterilization and disinfection system (24) is an ultraviolet reactor.

9. The greenhouse pesticide wastewater treatment and recycling system of claim 1, characterized in that: the adsorption system (26) is an activated carbon filter.

10. The greenhouse pesticide wastewater treatment and recycling system of claim 2, characterized in that: the concentrated water outlet of the pressure type membrane filtering device (15) is connected to the raw water tank (5) through a concentrated water pipe (16), and a concentrated water valve (17) is arranged on the concentrated water pipe (16).