Cleaning equipment for two-stage dtro leachate treatment equipment

Abstract

The utility model discloses cleaning equipment for two-stage dtro leachate treatment equipment, the two-stage dtro leachate treatment equipment comprises a raw water tank, a first-stage dtro system and a second-stage dtro system which are connected in sequence, the cleaning equipment comprises a cleaning water tank, the cleaning water tank is connected with the first-stage dtro system through a cleaning pipe, and the second-stage dtro system is connected with the first-stage dtro system through a cleaning pipe. A primary dosing box is arranged in the middle of the cleaning pipe; and a second-stage sampling pipe is arranged at a water outlet of the second-stage dtro system. According to the cleaning equipment disclosed by the utility model, through the arrangement of the two-stage sampling pipe, the cleaning mode is adjusted in the dosing box in time according to the condition of permeate liquid in the cleaning process, so that the cleaning effect on the two dtro systems is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of leachate treatment, in particular to a cleaning device for a two-stage DTR leachate treatment device. Background Art

[0002] Two-stage DTR leachate treatment equipment refers to two DTR systems connected in sequence, which can perform DTR (disc tube reverse osmosis) treatment on the leachate twice, and has a better treatment effect on the leachate.

[0003] The current method of cleaning the treatment equipment is to equip a cleaning water tank outside the treatment equipment. The cleaning water tank is connected before the primary dtro system and controlled by a valve. After the normal leachate treatment is completed, the valve is opened and the clean water in the cleaning water tank flushes the two dtro systems to achieve cleaning. The disadvantages of this method are:

[0004] Since the water quality of the leachate changes greatly, the two DTR systems as the core of the treatment also change greatly after treatment. However, the flushing of the cleaning water tank can only rely on the experience of the operator, which makes the cleaning of the two DTR systems not necessarily complete, or wastes water resources;

[0005] On the other hand, the existing dosing process is to add the drug into the raw water tank before water treatment, such as adjusting the pH, while the water for the cleaning process is provided by the cleaning water tank, that is, it is impossible to carry out targeted dosing according to the actual contamination conditions of the two DTR systems during the cleaning process. Utility Model Content

[0006] In order to solve the deficiencies in the prior art, the utility model provides a cleaning device for a two-stage DTR leachate treatment equipment. The cleaning device for the two-stage DTR leachate treatment equipment realizes timely adjustment of the cleaning method in the dosing box according to the situation of the permeate during the cleaning process through the setting of a secondary sampling tube, so as to ensure the cleaning effect of the two DTR systems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a cleaning device for a two-stage DTR leachate treatment device, the two-stage DTR leachate treatment device comprises a raw water tank, a primary DTR system and a secondary DTR system connected in sequence, the cleaning device comprises a cleaning water tank, the cleaning water tank is connected to the primary DTR system through a cleaning pipe, and a primary dosing box is arranged in the middle of the cleaning pipe;

[0009] The water outlet of the secondary DTR system is provided with a secondary sampling tube.

[0010] The cleaning equipment of the two-stage DTR leachate treatment equipment of the utility model, during cleaning, first releases water from the cleaning water tank to flush the primary DTR system and the secondary DTR system in turn, and samples are tested on the secondary sampling tube, and according to the test results, corresponding agents are added to the primary dosing box to clean the two DTR systems in a targeted manner. The testing and dosing process can be repeated many times until the test results meet the standards, and then the cleaning process stops.

[0011] The cleaning device of the two-stage DTR leachate treatment equipment of the utility model realizes timely adjustment of the cleaning mode in the dosing box according to the situation of the permeate during the cleaning process through the provision of a secondary sampling tube, so as to ensure the cleaning effect of the two DTR systems.

[0012] In a further technical solution, the cleaning water tank is connected to the primary dtro system and the secondary dtro system respectively through two cleaning pipes, and a primary dosing box and a secondary dosing box are respectively arranged in the middle of the two cleaning pipes.

[0013] The two cleaning pipes are connected to two DTR systems respectively, and the chemicals are added independently, which greatly improves the cleaning efficiency.

[0014] In a further technical solution, a first-level tee is arranged between the first-level dtro system and the second-level dtro system, and the first-level tee is respectively connected to the first-level dtro system, the second-level dtro system and the first-level wastewater pipe, and a first-level sampling tube is also arranged on the pipeline between the first-level wastewater pipe or the first-level tee and the first-level dtro system.

[0015] The setting of the primary sampling pipe and the primary wastewater pipe realizes the independent cleaning of the two DTR systems. The operator can choose independent cleaning or unified cleaning method according to the pollution situation, which further improves the cleaning efficiency and quality.

[0016] In a further technical solution, the two-stage DTR leachate treatment equipment also includes a degassing tower, which is connected to the water outlet of the secondary DTR system. A secondary tee is arranged between the secondary DTR system and the degassing tower. The secondary tee is respectively connected to the secondary DTR system, the degassing tower and the secondary wastewater pipe. The secondary sampling tube is arranged on the pipeline between the secondary wastewater pipe or the secondary tee and the secondary DTR system.

[0017] By setting up a secondary three-way pipe, the cleaning process can be achieved on the basis of adding a degassing tower to the original processing equipment, and the adaptability of the cleaning equipment is wider.

[0018] The beneficial effects are:

[0019] 1. The cleaning device of the two-stage DTR leachate treatment equipment of the utility model realizes timely adjustment of the cleaning method in the dosing box according to the situation of the permeate during the cleaning process through the provision of a secondary sampling tube, so as to ensure the cleaning effect of the two DTR systems.

[0020] 2. Two cleaning pipes are connected to two DTR systems respectively, and the chemicals are added independently, which greatly improves the cleaning efficiency.

[0021] 3. The setting of the primary sampling pipe and the primary wastewater pipe realizes the independent cleaning of the two DTR systems. The operator can choose independent cleaning or unified cleaning method according to the pollution situation, which further improves the cleaning efficiency and quality.

[0022] 4. By setting up a secondary three-way pipe, the cleaning process can be achieved on the basis of adding a degassing tower to the original processing equipment, and the adaptability of the cleaning equipment is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the composition of the cleaning equipment of the two-stage DTR leachate treatment equipment of the embodiment of the utility model.

[0024] 10. Raw water tank; 20. Primary DTR system; 21. Primary tee pipe; 30. Secondary DTR system; 31. Secondary tee pipe; 40. Degassing tower; 50. Cleaning water tank; 51. Primary dosing box; 52. Secondary dosing box; 53. Primary sampling tube; 54. Secondary sampling tube; 55. Primary wastewater pipe; 56. Secondary wastewater pipe. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Example:

[0027] A cleaning device for a two-stage dtro leachate treatment device, such as Figure 1 As shown, the two-stage DTR leachate treatment equipment includes a raw water tank 10, a primary DTR system 20 and a secondary DTR system 30 connected in sequence, and the cleaning equipment includes a cleaning water tank 50, which is connected to the primary DTR system 20 through a cleaning pipe, and a primary dosing tank 51 is arranged in the middle of the cleaning pipe;

[0028] The water outlet of the secondary DTR system 30 is provided with a secondary sampling tube 54 .

[0029] First, the original working process of the two-stage DTR leachate treatment equipment is explained: the leachate is first stored in the raw water tank 10. A sand filter and a core filter are also arranged on the pipeline between the raw water tank 10 and the first-stage DTR system 20. The purpose is to pre-treat the leachate. The first-stage DTR system 20 and the second-stage DTR system 30 both include a high-pressure pump, a booster pump and a DTR membrane. The leachate is treated by the first-stage DTR system 20 into a first-stage concentrate and a first-stage permeate. The first-stage concentrate is Figure 1 The primary permeate is discharged separately in the direction of the arrow shown, and the primary permeate enters the secondary dtro system 30 for a second treatment. The secondary dtro system 30 processes the primary permeate into secondary permeate and secondary concentrated liquid. The secondary concentrated liquid is discharged separately in the direction of the arrow shown. The primary permeate enters the secondary dtro system 30 for a second treatment. Figure 1 Discharge separately in the direction of the arrow shown.

[0030] The cleaning equipment of the two-stage DTR leachate treatment equipment of the utility model, during cleaning, first releases water from the cleaning water tank 50 to flush the primary DTR system 20 and the secondary DTR system 30 in turn, and samples are tested on the secondary sampling tube 54, and according to the test results, the corresponding agent is added to the primary dosing box 51, and the two DTR systems are cleaned in a targeted manner. The detection and dosing process can be repeated many times until the test results meet the standards, and then the cleaning process stops.

[0031] In this embodiment, clean water flushes the primary dtro system 20 and the secondary dtro system 30 in sequence.

[0032] The cleaning device of the two-stage DTR leachate treatment equipment of the utility model is equipped with a secondary sampling tube 54, so that the cleaning method can be adjusted in time in the dosing box according to the situation of the permeate during the cleaning process to ensure the cleaning effect of the two DTR systems.

[0033] In another embodiment, if Figure 1 As shown, the cleaning water tank 50 is connected to the primary DTR system 20 and the secondary DTR system 30 respectively through two cleaning pipes, and a primary dosing box 51 and a secondary dosing box 52 are respectively arranged in the middle of the two cleaning pipes.

[0034] The two cleaning pipes are connected to two DTR systems respectively, and the chemicals are added independently, which greatly improves the cleaning efficiency.

[0035] In another embodiment, if Figure 1 As shown, a primary tee 21 is arranged between the primary dtro system 20 and the secondary dtro system 30. The primary tee 21 is respectively connected to the primary dtro system 20, the secondary dtro system 30 and the primary wastewater pipe 55. A primary sampling tube 53 is also arranged on the primary wastewater pipe 55 or the pipeline between the primary tee 21 and the primary dtro system 20.

[0036] The provision of the primary sampling pipe 53 and the primary wastewater pipe 55 enables independent cleaning of the two DTR systems. The operator can choose independent cleaning or unified cleaning according to the pollution situation, further improving the cleaning efficiency and quality.

[0037] In another embodiment, if Figure 1 As shown, the two-stage DTR leachate treatment equipment also includes a degassing tower 40, which is connected to the water outlet of the secondary DTR system 30. A secondary tee pipe 31 is arranged between the secondary DTR system 30 and the degassing tower 40. The secondary tee pipe 31 is respectively connected to the secondary DTR system 30, the degassing tower 40 and the secondary wastewater pipe 56. The secondary sampling tube 54 is arranged on the secondary wastewater pipe 56 or on the pipeline between the secondary tee pipe 31 and the secondary DTR system 30.

[0038] The function of the degassing tower 40 is to treat the secondary permeate.

[0039] By providing the secondary three-way pipe 31, it is possible to realize the cleaning process on the basis of adding the degassing tower 40 to the original processing equipment, and the adaptability of the cleaning equipment is wider.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A cleaning device for a two-stage dtro leachate treatment device, the two-stage dtro leachate treatment device comprising a raw water tank, a primary dtro system and a secondary dtro system connected in sequence, characterized in that: The cleaning equipment includes a cleaning water tank, which is connected to the primary dtro system through a cleaning pipe, and a primary dosing tank is provided in the middle of the cleaning pipe; The water outlet of the secondary DTR system is provided with a secondary sampling tube.

2. The cleaning device of the two-stage dtro leachate treatment equipment according to claim 1 is characterized in that: The cleaning water tank is connected to the primary dtro system and the secondary dtro system respectively through two cleaning pipes, and a primary medicine adding box and a secondary medicine adding box are respectively arranged in the middle of the two cleaning pipes.

3. The cleaning device of the two-stage dtro leachate treatment equipment according to claim 2 is characterized in that: A primary tee is arranged between the primary dtro system and the secondary dtro system, and the primary tee is respectively connected to the primary dtro system, the secondary dtro system and the primary wastewater pipe. A primary sampling tube is also arranged on the pipeline between the primary wastewater pipe or the primary tee and the primary dtro system.

4. The cleaning device of the two-stage DTR leachate treatment equipment according to claim 1 or 3, wherein the two-stage DTR leachate treatment equipment further comprises a degassing tower, and the degassing tower is connected to the water outlet of the secondary DTR system, characterized in that: A secondary tee is arranged between the secondary DTR system and the degassing tower, and the secondary tee is respectively connected to the secondary DTR system, the degassing tower and the secondary wastewater pipe, and the secondary sampling tube is arranged on the secondary wastewater pipe or on the pipeline between the secondary tee and the secondary DTR system.

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