CN212476456U - Small-size reuse of reclaimed water device - Google Patents
Small-size reuse of reclaimed water device Download PDFInfo
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- CN212476456U CN212476456U CN202020749606.6U CN202020749606U CN212476456U CN 212476456 U CN212476456 U CN 212476456U CN 202020749606 U CN202020749606 U CN 202020749606U CN 212476456 U CN212476456 U CN 212476456U
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Abstract
The utility model discloses a small reclaimed water recycling device, which comprises a water taking system, a biochemical reaction system and a clean water tank which are arranged in sequence; the water taking system comprises a submersible sewage pump and a water taking pipeline; the biochemical reaction system is sequentially provided with an anoxic zone, an anaerobic zone, an aerobic zone and an MBR membrane zone; a chlorination zone, a submersible pump and a water outlet pipeline are arranged in the clean water tank; still include self-cleaning filter, air-blower and suction pump, the one end and the water intaking piping connection of self-cleaning filter, in the other end leads to pipe stretches into the anoxic zone, the air-blower passes through tuber pipe and aeration equipment and stretches into the bottom in aerobic zone, the suction pump stretches into MBR membrane district and chlorination district respectively through both ends water pipe. The utility model utilizes the unique structural design, not only can ensure the effluent to reach the discharge standard, but also can reduce the energy consumption; the processing device can be placed on the ground or buried, can be installed in a green belt and also can be installed under the overpass, and has the advantages of flexible and various installation modes, simple operation, investment saving and low operation cost.
Description
Technical Field
The utility model relates to a reclaimed water treatment technical field especially relates to a small-size reclaimed water retrieval and utilization device.
Background
With the continuous advance of urbanization, the problems of urban ecology and environment are increasingly prominent, and the green belts become an effective way for improving the urban ecological environment and also need to consume a considerable amount of water resources. At present, the water for greening and road spraying in cities mainly has the following ways: tap water, underground water and reclaimed water plant effluent water are increasingly used today, the consumption of tap water is increased year by year along with the increase of urban population, and the adoption of tap water as greening and road spraying water does not meet the current development trend; the water level of underground water drops year by year, and the exploitation of the underground water is forbidden in many places; therefore, the reclaimed water and the reclaimed water can become main water sources for urban greening and road spraying. But because the reclaimed water plant position is comparatively remote, and the quantity is single, the watering lorry needs a large amount of time to be used for the water feeding of itself, causes the waste of a large amount of manpower, material resources, materials.
The reclaimed water recycling system is basically upgraded and modified on the basis of the existing sewage treatment plant, sewage is subjected to advanced treatment, and according to the national standard of urban sewage recycling urban miscellaneous water quality (GB18920-2002), the water outlet requirement of the reclaimed water recycling system needs to meet the recycling requirement and reaches the following standard: turbidity is less than or equal to 10NTU, BOD5 is less than or equal to 15mg/L, ammonia nitrogen is less than or equal to 10mg/L, and total coliform group is less than or equal to 3/L.
The current mainstream process for recycling reclaimed water is to treat sewage by adopting pretreatment, biochemical method and ultrafiltration (or flocculation precipitation and filtration), the method needs to build a large number of structures, buildings and various matched professional equipment, each treatment unit forms a whole set of treatment process by being connected in series in the transverse direction, and meanwhile, a water pump, a fan and the like provide power. The whole process flow is long, the control parameters are many, the requirement on automatic control is high, and the consequent is large occupied area, large investment and high operation cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a small-size reuse of reclaimed water device, include: the water taking system, the biochemical reaction system and the clean water tank are arranged in sequence; the water taking system comprises a submersible sewage pump and a water taking pipeline, and the submersible sewage pump is arranged in a domestic sewage main pipeline inspection well; the biochemical reaction system is sequentially provided with an anoxic zone, an anaerobic zone, an aerobic zone and an MBR membrane zone; a chlorination zone, a submersible pump and a water outlet pipeline are arranged in the clean water tank, and a plurality of chlorine sheets are placed in the chlorination zone; still include self-cleaning filter, air-blower and suction pump, the one end of self-cleaning filter with water intaking piping connection, the other end stretches into through first water supply pipeline in the anoxic zone, the air-blower stretches into through tuber pipe and aeration equipment the bottom in aerobic zone, the last a plurality of gas pockets that are provided with of aeration equipment, the suction pump both ends are connected with the water pipe and stretch into respectively the MBR membrane district with the chlorination district.
As a technical scheme of the utility model further optimize, the anaerobic zone with between the aerobic zone with the MBR membrane area the anoxic zone with be provided with the baffle between the MBR membrane area respectively.
As a technical scheme of the utility model further optimize, be provided with MBR membrane group ware in the MBR membrane district.
As the technical scheme of the utility model further optimize, aeration equipment passes through pipe bracket to be fixed the bottom in aerobic zone, the gas pocket is 45 crisscross settings downwards, the aperture 8mm of gas pocket, two adjacent hole axis distance 200 mm.
As the technical proposal of the utility model, the chlorination zone is arranged on the upper end of the clean water tank through the clapboard.
The utility model has the advantages that:
the utility model utilizes the unique structural design, not only can ensure the effluent to reach the discharge standard, but also can reduce the energy consumption; the processing device can be placed on the ground or buried, can be installed in a green belt and also can be installed under the overpass, and has the advantages of flexible and various installation modes, simple operation, investment saving and low operation cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals:
10-a water intake system; 11-a submersible sewage pump; 12-a water intake pipeline; 13-a sewage inspection well; 14-a main sewage line; 20-a biochemical reaction system; 21-anoxic zone; 22-anaerobic zone; 23-an aerobic zone; 24-MBR membrane area; 25-a separator; 26-MBR membrane group device; 30-a clean water tank; 31-a chlorination zone; 32-submersible pump; 33-an outlet conduit; 40-self-cleaning filter; 41-a first water supply pipeline; 50-a blower; 51-air pipe; 52-an aeration device; 53-a pipe support; 54-air holes; 60-a suction pump; 70-a PLC control system; and 80, mounting a cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in fig. 1, the utility model discloses a small-size reuse of reclaimed water device, include: the system comprises a water taking system 10, a biochemical reaction system 20 and a clean water tank 30 which are arranged in sequence, wherein the water taking system 10 comprises a submersible sewage pump 11 and a water taking pipeline 12; the biochemical reaction system 20 is sequentially provided with an anoxic zone 21, an anaerobic zone 22, an aerobic zone 23 and an MBR membrane zone 24, partition plates 25 are respectively arranged between the anaerobic zone 22 and the aerobic zone 23, between the aerobic zone 23 and the MBR membrane zone 24, and between the anoxic zone 21 and the MBR membrane zone 24, and an MBR membrane zone 26 is arranged in the MBR membrane zone; a chlorination zone 31, a submersible pump 32 and a water outlet pipeline 33 are arranged in the clean water tank 30, and a plurality of chlorine tablets 34 are arranged in the chlorination zone; still include self-cleaning filter 40, air-blower 50 and suction pump 60, the one end and the water intaking pipeline 12 of self-cleaning filter 40 are connected, and the other end stretches into in the anoxic zone 21 through first water supply pipeline 41, and the air outlet department of air-blower 50 is connected with tuber pipe 51 and aeration equipment 52, and aeration equipment 52 passes through pipe bracket 53 to be fixed in the bottom in aerobic zone 23, is provided with a plurality of gas pockets 54 on the aeration equipment 52, and suction pump 60 both ends are connected with the water pipe and stretch into MBR membrane district 24 and chlorination district 31 respectively. The present embodiment further includes a PLC control system 70, and the PLC control system 70 can control each process according to a set program.
In this embodiment, select suitable position in city owner urban area greenbelt, as the utility model discloses the mounted position of device buries water intaking system 10, biochemical reaction system 20 and clean water basin 30 underground, and upper portion afforestation only reserves first access hole, second access hole and third access hole in order to overhaul each system, and self-cleaning filter 40, air-blower 50, suction pump 60 and control system 70 set up at the above-ground part and put in the installation cabinet 80.
A submersible sewage pump 11 is placed in a domestic sewage inspection well 13 of a main urban area, wherein the pipe diameter of a sewage main pipeline 14 is not less than DN600, sewage enters a self-cleaning filter 40 through the submersible sewage pump 11 and a water intake pipeline 12 to remove particle impurities, intercepted impurities return to the sewage main pipeline 14, and finally enter a municipal sewage treatment plant.
The sewage after passing through the self-cleaning filter enters the anoxic zone 21 through the first water feeding pipeline 41, the water treatment filler is arranged in the anoxic zone 21, a biological film grows on the surface of the filler, and under the dual actions of the biological film and the activated sludge, denitrification reaction is carried out by using denitrifying bacteria with nitrate or nitrite as an electron acceptor and organic carbon as an electron donor and a nutrient source, so that nitrate in the nitrified liquid is converted into nitrogen through denitrification to be removed. The anoxic zone has a hydraulic retention time of 21 hours, the sludge concentration is 4000 mg/L-6000 mg/L, the dissolved oxygen in the tank is less than 0.5mg/L, and the filling rate of the water treatment filler is 50-80%.
The sludge-water mixture after denitrification in the anoxic zone 21 enters an anaerobic zone 22, water treatment filler is arranged in the anaerobic zone 22, phosphorus accumulation in the body is decomposed in the anaerobic environment by utilizing phosphorus accumulating bacteria population in the activated sludge in the anaerobic zone 22, part of energy generated by decomposition is supplied for the phosphorus accumulating bacteria to live, and the other part of energy is supplied for the phosphorus accumulating bacteria to actively absorb acetic acid glycoside and convert into a large amount of PHB (poly beta hydroxybutyrate) under the condition that a carbon source is sufficient and is stored in the body, so that the aim of adsorbing and removing phosphorus by the phosphorus accumulating bacteria in the aerobic pool is fulfilled. The hydraulic retention time of the anaerobic zone is 2 hours, the sludge concentration is 4000 mg/L-6000 mg/L, the dissolved oxygen in the tank is less than 0.2mg/L, and the filling rate of the water treatment filler is 50-80%.
The activated sludge synthesized into PHB by the phosphorus-accumulating bacteria in the anaerobic zone 22 enters an aerobic zone 23, the aerobic zone is arranged in a ladder shape with a narrow top and a wide bottom, the bottom is provided with an aeration device, the middle is provided with the activated sludge, the upper part is provided with an MBR membrane group device 26, air bubbles generated by aeration of the bottom aeration device are collected to the bottom of the MBR membrane group device under the action of a bevel edge clapboard and overflow through the membrane group device, so that the flushing effect on the MBR membrane is achieved. In the aerobic zone, organic pollutants are mainly removed and converted into carbon dioxide and water, and simultaneously, the proliferated microorganisms are removed in the form of excess sludge; removing ammonia nitrogen, converting the ammonia nitrogen into nitrite through nitrification until the nitrate is removed, and refluxing the nitrate into an anoxic zone through sludge to remove the nitrate; removing phosphate, proliferating the phosphorus accumulating bacteria, excessively absorbing the phosphate in the sewage and removing the phosphate in the form of excess sludge. The hydraulic retention time of the aerobic zone is 5 hours, the sludge concentration is 6000 mg/L-8000 mg/L, and the dissolved oxygen in the pool is more than 1.5 mg/L.
The air holes 54 on the aeration device 52 at the bottom of the aerobic zone are staggered at an angle of 45 degrees downwards, the aperture is 8mm, and the axial distance between two adjacent holes is 200 mm. The aeration device mainly has 3 functions: 1) providing oxygen required by the life of microorganisms; 2) continuous flushing is carried out on the MBR membrane without additionally arranging an air blower; 3) the return flow of the nitrifying liquid can be realized without the action of a pump, and the energy consumption is reduced. The air-water ratio required by oxygen supply of the aerobic area for treating the domestic sewage by the conventional MBR technology is 8: 1-15: 1, the air-water ratio required by flushing the MBR membrane is 15:1, and the total required air-water ratio is 23: 1-30: 1. The aeration device of the utility model is designed by unique structure, the gas demand only needs to satisfy large air volume, namely the required air-water ratio is 15:1, the air saving amount is 53% -100%, the energy consumption can be reduced by 20% -30%, in addition, the energy consumption can be effectively reduced by 10% -20% and the energy consumption can be comprehensively reduced by 30% -50% because no water pump is needed for backflow.
After passing through the biochemical reaction system 20, the sewage is treated into clear water, the clear water is pumped into and out of the clear water tank 30 by the suction pump 60 from the MBR membrane area for temporary storage, the activated sludge is recycled, the chlorine adding area 31 is arranged in the clear water tank for placing the chlorine tablets 34, the chlorine tablets can eliminate most bacteria and escherichia coli groups in the clear water, and the water quality is ensured to meet the recycling standard. The clean water pool is internally provided with a submersible pump 32 and a water outlet pipeline 33 which can be used for nearby water taking of a watering cart and can also be used for sprinkling irrigation on greening of peripheral areas through pipelines.
In a recycling amount of 50m3D is an example, the device of the utility model occupies 15m of area2Wherein the biochemical reaction system has the following dimensions: diameter phi12800mm, height H14000mm, effective volume V1＝21.5m3Residence time T110 h; the size of the clean water tank is as follows: diameter phi22800mm, height H14000mm, residence time T2＝10h。
In other embodiments, the device of the present invention can be installed above the ground surface under the overpass, and the working principle is not repeated.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; when the technical solutions are contradictory or cannot be combined, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Claims (5)
1. A small-sized reclaimed water reusing device is characterized by comprising: the water taking system, the biochemical reaction system and the clean water tank are arranged in sequence; the water taking system comprises a submersible sewage pump and a water taking pipeline, and the submersible sewage pump is arranged in a domestic sewage main pipeline inspection well; the biochemical reaction system is sequentially provided with an anoxic zone, an anaerobic zone, an aerobic zone and an MBR membrane zone; a chlorination zone, a submersible pump and a water outlet pipeline are arranged in the clean water tank, and a plurality of chlorine sheets are placed in the chlorination zone; still include self-cleaning filter, air-blower and suction pump, the one end of self-cleaning filter with water intaking piping connection, the other end stretches into through first water supply pipeline in the anoxic zone, the air-blower stretches into through tuber pipe and aeration equipment the bottom in aerobic zone, the last a plurality of gas pockets that are provided with of aeration equipment, the suction pump both ends are connected with the water pipe and stretch into respectively the MBR membrane district with the chlorination district.
2. The small-sized reclaimed water reusing device according to claim 1, wherein: and partition plates are respectively arranged between the anaerobic zone and the aerobic zone, between the aerobic zone and the MBR membrane zone, and between the anoxic zone and the MBR membrane zone.
3. The small-sized reclaimed water reusing device according to claim 1, wherein: an MBR membrane group device is arranged in the MBR membrane area.
4. The small-sized reclaimed water reusing device according to claim 1, wherein: the aeration device is fixed at the bottom of the aerobic zone through a pipeline support, the air holes are arranged in a downward 45-degree staggered mode, the aperture of each air hole is 8mm, and the axial distance between every two adjacent air holes is 200 mm.
5. The small-sized reclaimed water reusing device according to claim 1, wherein: the chlorination zone is arranged at the upper end of the clean water tank through a partition plate.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111423073A (en) * | 2020-05-08 | 2020-07-17 | 青岛光华环保科技有限公司 | Small-size reuse of reclaimed water device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111423073A (en) * | 2020-05-08 | 2020-07-17 | 青岛光华环保科技有限公司 | Small-size reuse of reclaimed water device |
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