Recycled water advanced treatment control system

Abstract

The utility model discloses an advanced treatment control system for reuse water, which comprises a primary pretreatment tank, a secondary pretreatment tank, a cleaning pump, a water outlet pump, a filtering mechanism, a finished product tank and a sewage tank, the primary pretreatment tank is connected with the secondary pretreatment tank through a water inlet pump, and the cleaning pump and the water outlet pump are respectively connected with the secondary pretreatment tank. The cleaning pump is connected with a water inlet pipe of the backwashing pipeline of the reaction tank through a pipeline, the sewage pool is connected with a water outlet pipe of the backwashing pipeline of the reaction tank, the filtering mechanism comprises a sand filtering device and a membrane filtering device which are sequentially connected through pipelines, the water outlet pump is connected with the sand filtering device, and the membrane filtering device is connected with the finished product pool. According to the advanced treatment control system for the reuse water, stage treatment is performed on the sewage, and the treated water is subjected to purification treatment at different depths according to different use purposes, so that the sewage treatment is more flexible, the sewage treatment cost is saved, and the utilization efficiency of the treated water is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment technical field, concretely relates to a kind of reuse water advanced treatment control system. BACKGROUND

[0002] With the population growth and economic development, water demand increases greatly, while a large number of sewage emissions make available water resources decrease. To alleviate the contradiction between supply and demand of water resources, reduce sewage emissions and reduce the risk of environmental pollution, reuse water technology emerges as the times require. Existing reuse water technology mainly includes membrane filtration method, sand filtration and the like, but often single equipment, and the function fusion is not strong. CONTENT OF UTILITY MODEL

[0003] To solve the above technical problems, the utility model adopts the technical scheme of a kind of reuse water advanced treatment control system, comprising a primary pretreatment pool, a secondary pretreatment pool, a cleaning pump, a water outlet pump, a filtering mechanism, a finished product pool and a sewage pool. The primary pretreatment pool and the secondary pretreatment pool are connected by a water inlet pump. The cleaning pump and the water outlet pump are respectively connected to the secondary pretreatment pool. The cleaning pump is connected to the water inlet pipe of the backwashing pipe of the reaction tank through a pipeline. The sewage pool is connected to the water outlet pipe of the backwashing pipe of the reaction tank. The filtering mechanism comprises a sand filter device and a membrane filter device connected by a pipeline. The water outlet pump is connected to the sand filter device. The membrane filter device is connected to the finished product pool.

[0004] As a preferred embodiment of the above technical scheme, the number of reaction tanks is multiple. The cleaning pump is connected to the water inlet pipe of the backwashing pipe of the reaction tank through a water distribution pipe. Valves are respectively installed on the water distribution pipe. A one-way valve is arranged between the sewage pool and the water outlet pipe of the backwashing pipe of the reaction tank.

[0005] As a preferred embodiment of the above technical scheme, the filtering mechanism comprises multiple sets. The water outlet pump is connected to the sand filter device in each set of filtering mechanism through a branch pipe with a valve. The filter device is connected to the corresponding membrane filter device through a pipeline with a valve. A one-way valve is arranged between the finished product pool and the membrane filter device.

[0006] As a preferred embodiment of the above technical scheme, the sand filter device comprises a filter barrel. A water inlet is arranged at the upper end of the filter barrel. The water inlet is connected to a branch pipe. A porous mesh plate is arranged inside the filter barrel. Filter sand is arranged on the porous mesh plate. A water outlet is arranged at the lower end of the filter barrel. The membrane filter device comprises a box body. The inside of the box body is divided into a water inlet part and a water outlet part by a plurality of RO reverse osmosis membranes arranged in sequence. The water inlet part is connected to the water outlet. The water outlet part is connected to the finished product pool.

[0007] As a preferred embodiment of the above technical scheme, the filter sand has a plurality of layers from bottom to top. The particle size of each layer of filter sand is different. The particle size of the filter sand gradually increases from bottom to top.

[0008] The utility model discloses a beneficial effect is: the utility model discloses the reuse water depth treatment control system, to the sewage formation grading treatment, the water after treatment carries out the purification treatment of different depth according to the use purpose difference, and the sewage treatment is more flexible, saves the sewage treatment cost, improves the utilization efficiency of the water after treatment. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0010] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor belong to the range of protection of the utility model.

[0011] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms 'center', 'upper', 'lower', 'left', 'right','vertical', 'horizontal', 'inner', 'outer' and the like is the orientation or position relation shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the restriction on the utility model. In addition, the terms 'first','second', 'third' are only for the description purpose, and cannot be understood as indicating or implying the relative importance.

[0012] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms'mounting', 'connecting', 'connection' should be understood broadly, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through the intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0013] For example, Figure 1As shown, a reclaimed water advanced treatment control system comprises a first pretreatment tank 1, a second pretreatment tank 2, a cleaning pump 3, a water outlet pump 4, a filtering mechanism, a finished product tank 5, and a sewage tank 6. The first pretreatment tank 1 and the second pretreatment tank 2 are connected by a water inlet pump 7. The cleaning pump 3 and the water outlet pump 4 are connected to the second pretreatment tank 2 respectively. The cleaning pump 3 is connected to the water inlet pipe of the backwashing pipe of a reaction tank 8 through a pipeline. The sewage tank 6 is connected to the water outlet pipe of the backwashing pipe of the reaction tank 8. The filtering mechanism comprises a sand filter device 9 and a membrane filter device 10 connected by a pipeline in sequence. The water outlet pump 4 is connected to the sand filter device 9. The membrane filter device 10 is connected to the finished product tank 5. After the sewage is subjected to sedimentation pretreatment in the first pretreatment tank 1, it enters the second pretreatment tank. Part of the water in the second pretreatment tank is used for backwashing of the reaction tank 8. Part of the water is subjected to sand filtration and RO reverse osmosis treatment in sequence and then enters the finished product tank. The water in the finished product tank is used as reclaimed water and then supplied externally.

[0014] Further, the number of the reaction tanks 8 is multiple. The cleaning pump 3 is connected to the water inlet pipe of the backwashing pipe of the reaction tank 8 through a water distribution pipe 11. Valves are installed on the water distribution pipe 11 respectively. A one-way valve is arranged between the sewage tank 6 and the water outlet pipe of the backwashing pipe of the reaction tank 8. The one-way valve prevents the water in the sewage tank 6 from returning to the backwashing pipe of the reaction tank 8. The reaction tank 8 is used as a production reaction device. Generally, multiple reaction tanks 8 are arranged. The multiple reaction tanks 8 are used in turn to perform backwashing operation with treated water, so as to realize reuse of the treated sewage.

[0015] Further, the filtering mechanism comprises multiple sets. The water outlet pump 4 is connected to the sand filter device 9 in each set of filtering mechanism through a branch pipe 12 with a valve. The filtering device is connected to the corresponding membrane filter device 10 through a pipeline with a valve. A one-way valve is arranged between the finished product tank 5 and the membrane filter device 10. The one-way valve prevents the water in the finished product tank 5 from returning to the membrane filter device 10. The multiple sets of filtering mechanism are arranged in parallel, so as to improve the sewage treatment efficiency and treatment effect. The water advanced treatment control system facilitates maintenance of a single filtering mechanism without shutdown.

[0016] Further, the sand filter device 9 comprises a filter barrel. The upper end of the filter barrel is provided with a water inlet connected to the branch pipe 12. A porous mesh plate is arranged in the filter barrel. Filter sand is arranged on the porous mesh plate. The lower end of the filter barrel is provided with a water outlet. The membrane filter device 10 comprises a box body. The inside of the box body is divided into a water inlet part and a water outlet part by a plurality of RO reverse osmosis membranes arranged in sequence. The water inlet part is connected to the water outlet of the sand filter device 9. The water outlet part is connected to the finished product tank 5.

[0017] Further, the filter sand has a plurality of layers from bottom to top. The particle size of each layer of filter sand is different. The particle size of the filter sand gradually increases from bottom to top. The multiple layers of filter sand can realize step-by-step filtration and improve the filtering effect.

[0018] It is worth mentioning that the valve, pump, RO reverse osmosis membrane, reaction tank and other technical features involved in the utility model patent application should be regarded as prior art, the specific structure, working principle and possible control mode, spatial arrangement mode of these technical features can be selected by using the conventional selection in the field, and should not be regarded as the invention point of the utility model patent, and the utility model patent will not be further expanded and described in detail.

[0019] The preferred embodiments of the utility model are described in detail above, and it should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the utility model, therefore, all the technical solutions obtained by logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.

Claims

1. A deep treatment control system for recycled water, characterized in that, The system includes a primary pretreatment tank, a secondary pretreatment tank, a cleaning pump, an effluent pump, a filtration mechanism, a finished product tank, and a wastewater tank. The primary and secondary pretreatment tanks are connected by an inlet pump. The cleaning pump and the effluent pump are respectively connected to the secondary pretreatment tank. The cleaning pump is connected to the inlet pipe of the backwash pipeline of the reaction tank through a pipeline. The wastewater tank is connected to the outlet pipe of the backwash pipeline of the reaction tank. The filtration mechanism includes a sand filter and a membrane filter connected in sequence through pipelines. The effluent pump is connected to the sand filter, and the membrane filter is connected to the finished product tank.

2. The reclaimed water deep treatment control system as described in claim 1, characterized in that, The reaction tanks are multiple in number. The cleaning pumps are connected to the inlet pipes of the backwashing pipelines of the reaction tanks through water distribution pipes. Valves are installed on the water distribution pipes. A one-way valve is installed between the sewage tank and the outlet pipe of the backwashing pipeline of the reaction tanks.

3. The reclaimed water deep treatment control system as described in claim 1, characterized in that, The filtration mechanism includes multiple sets. The water pump is connected to the sand filter in each set of the filtration mechanism through a branch pipe with a valve. The filter is connected to the corresponding membrane filter through a pipe with a valve. A one-way valve is provided between the finished product tank and the membrane filter.

4. The reclaimed water deep treatment control system as described in claim 3, characterized in that, The sand filtration device includes a filter barrel with an inlet at the top and a branch pipe connected to it. The filter barrel has a perforated mesh plate inside, on which filter sand is placed. The filter barrel has an outlet at the bottom. The membrane filtration device includes a housing. The housing is divided into an inlet section and an outlet section by several RO reverse osmosis membranes arranged in sequence. The inlet section is connected to the outlet section, and the outlet section is connected to the finished product tank.

5. The reclaimed water deep treatment control system as described in claim 4, characterized in that, The filter sand has several layers from bottom to top, and the particle size of each layer of filter sand is different, with the particle size gradually increasing from bottom to top.

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