CN204848603U - Integration sewage advanced treatment unit - Google Patents

Abstract

The utility model discloses an integrated sewage advanced treatment device, comprising a water inlet pipe, an anoxic pool, an aerobic pool, a sedimentation pool, a fiber filter cloth filter pool, a sludge pool, a clear water pool, an air intake pipe, a sludge return pipe, a supernatant liquid return pipe, air lift sludge pipe; the anoxic pool is connected with the aerobic pool; the sedimentation tank is connected with the aerobic pool and the fiber filter cloth filter pool; the fiber filter cloth filter pool is connected with the sludge pool and the clear water pool; pool, aerobic pool, and sedimentation tank are all connected to the inlet pipe; both ends of the sludge return pipe and both ends of the supernatant return pipe are respectively connected to the anoxic pool and the sludge pool; the two ends of the airlift sludge pipe Connect the sedimentation tank and the sludge tank respectively. The utility model can be installed buried, semi-buried, or above ground, and is easy to use. The integrated design does not require any auxiliary accessories, and it operates automatically and is flexible in layout. The effluent quality of the treatment process is stable, meeting the requirements of national standards, and truly realizing low-carbon, energy-saving operation.

Description

Integrated sewage advanced treatment device

technical field

The utility model relates to the technical field of sewage treatment, in particular to an integrated sewage advanced treatment device.

Background technique

With the rapid development of China's economy, the discharge of domestic sewage continues to increase, and untreated or improperly treated domestic sewage has become one of the main reasons for the deterioration of river and lake water quality. With my country's emphasis on urban domestic sewage treatment, the problem of domestic sewage pollution in small towns and rural areas has become more prominent. Sewage from small towns and rural areas has the characteristics of small discharge, large fluctuations, and good biodegradability. Therefore, decentralized treatment models are often adopted abroad. 20% to 30% of the population in Europe and the United States use decentralized sewage treatment facilities, and 31% of the population in Japan uses septic tanks to treat domestic sewage. Decentralized treatment is also an important measure to promote the development of public health in small towns and rural areas.

The existing main technologies applicable to the decentralized treatment of sewage are divided into primary treatment process and main treatment process. Among them, the primary treatment process includes septic tanks, primary sedimentation tanks, etc., which are mainly used to partially remove SS; the main treatment process includes aeration tanks, biological filters, SBR reactors, stabilization ponds, artificial wetlands, etc., and is mainly used to remove COD. , SS, or nitrogen, phosphorus.

Generally speaking, compared with the separated system, the integrated system is easier to construct, quicker to put into use, quicker to take effect, and saves floor space. Anaerobic technology is more energy-efficient than aerobic technology under certain conditions, but because the effluent quality of anaerobic technology alone cannot meet the national secondary discharge standards, it is rarely mentioned. Compared with the artificial system, the natural system has lower cost, convenient operation and management, and low energy consumption, but it is limited by climate conditions and land area, and the quality of effluent water is not as good as that of the artificial system. In the natural system, the soil system has better removal effect and reliability than the water system. In the artificial system, compared with the traditional process, the effluent water quality of MBR is better, and the sewage can be recycled and reused. It occupies a small area but has high operation and management costs.

In the traditional process, the attached growth biological system (such as biofilm method and biological aerated filter) has a small sludge output and a simple system structure compared with the suspended growth biological system represented by the activated sludge method, oxidation ditch and SBR. , but with the improvement of the effluent standard, especially the proposal of the first-class A standard, many existing traditional processes need to continue to add advanced treatment devices.

The integrated sewage advanced treatment device is a trend developed this year, suitable for occasions where it is not suitable to build a sewage treatment plant or where the sewage is not easy to collect to the sewage treatment plant for centralized treatment, such as small communities, scenic spots, tourist attractions and campgrounds, Hotels, schools, expressway service areas, etc. are not suitable for the occasions where the geographical location or investment cost is not suitable for collection and collection to the central sewage plant for treatment. It has the advantages of low energy consumption, impact load resistance, low investment, simple and stable operation, convenient management and good effect.

The integrated sewage advanced treatment device has strong applicability and a wide range of applications; it realizes standardized design and assembly line production; simple operation and management, reliable performance; short project implementation period, and realizes emission reduction after landing; it has the characteristics of many, fast, good and economical . The popularization and application of this device will become an important means of domestic sewage treatment and reuse.

Utility model content

The purpose of the utility model is to provide an integrated sewage advanced treatment device for the deficiencies of the prior art, which can better and more conveniently carry out advanced treatment of medium and small point source sewage.

The purpose of this utility model can be achieved through the following technical solutions: an integrated sewage advanced treatment device, including a water inlet pipe, an anoxic pool connected to the water inlet pipe, an aerobic pool, a sedimentation pool, a sludge pool, a fiber filter cloth filter pool, and a clear water pool , air intake pipe, sludge return pipe, supernatant liquid return pipe, and airlift sludge pipe; the anoxic pool and the aerobic pool are adjacently arranged and connected through water holes; the sedimentation tank includes a water distribution pipe and an outlet pipe , the water distribution pipe is connected to the aerobic tank, and the outlet pipe is connected to the fiber filter cloth filter tank; the fiber filter cloth filter tank includes a mud discharge pipe and a filter outlet pipe, the mud discharge pipe is connected to the sludge tank, and the filter outlet pipe is connected to the clear water tank; The anoxic tank, the aerobic tank, and the sedimentation tank are all connected to the inlet pipe; the two ends of the sludge return pipe and the two ends of the supernatant return pipe are respectively connected to the anoxic tank and the sludge tank; The two ends are respectively connected to the sedimentation tank and the sludge tank.

Both the anoxic pool and the aerobic pool are provided with a three-dimensional elastic packing device; the bottom of the anoxic pool is provided with a perforated aeration tube, and the bottom of the aerobic pool is provided with a microporous aerator; the perforated aeration tube and the microporous Each of the hole aerators is connected to the air intake pipe through a pipeline; a partition is provided between the anoxic tank and the aerobic tank, and a water hole is opened at the bottom of the partition; A water outlet; a sludge return port and a supernatant return port are provided on the side wall of the anoxic tank, and the sludge return port and the supernatant return port are respectively connected to the sludge return pipe and the supernatant return pipe.

The sedimentation tank includes a sludge cone bucket located at the bottom of the tank, a water distribution pipe located above the sludge cone bucket, an inclined pipe filler located above the water distribution pipe, a sludge gas lift device installed at the bottom of the sedimentation tank, and a water distribution pipe located at the bottom of the sedimentation tank. The upper water outlet weir and the water outlet pipe; the water distribution pipe is connected to the aerobic pool, and the water distribution pipe is arranged horizontally, and a water distribution hole with a diameter of 20mm is opened on the water distribution pipe every 200mm; one end of the water outlet pipe is connected to the water outlet weir, and the other end Connect the fiber filter cloth filter tank through the sludge tank.

The sludge air-lifting device is connected to the air-lifting pipe through the air-lifting inlet pipe, and connected to the air-lifting sludge pipe through the air-lifting sludge pipe.

The sludge tank includes a sludge return pump installed at the bottom of the sludge tank, a fiber filter reverse suction pump installed at the bottom of the sludge tank, a return sludge outlet, a supernatant outlet, and a sludge inlet pipe; A sludge return interface is provided on the side wall of the oxygen tank body, and the sludge return pump is connected to the return sludge outlet through a pipeline, and the return sludge outlet is connected to the anoxic tank sludge return interface through the sludge return pipe; the fiber The filter cloth filter tank is provided with a backwash suction port, and the fiber filter cloth reverse suction pump is connected to the backwash suction port through a pipeline; the air-lifting sludge pipe is connected to the sludge tank through a sludge inlet pipe; the supernatant return pipe Connect the sludge tank through the supernatant outlet.

The fiber filter cloth filter tank includes a filter tank body, a driving device, a fiber filter cloth, a filter drum, a mud collecting bucket, and a backwash suction port; the mud collecting bucket is installed at the lower part of the filter tank body; the filter drum is vertically It is arranged directly on the upper part of the filter tank body, and the filter drum is located directly above the mud collecting bucket; the filter drum is hollow cylindrical, and there are several water holes on the side wall of the filter drum, and the side wall of the filter drum The outer surface is wrapped with fiber filter cloth; the driving device is installed on the upper end surface of the filter tank body, and the driving device is connected to the filter drum; the backwash suction port is installed next to the filter drum in the shell; the fiber filter cloth filter tank body is equipped with Water inlet, filter outlet, there is a water outlet at the bottom of the filter drum, and a mud discharge port at the bottom of the mud collecting bucket. The filter outlet is connected to the outlet at the bottom of the filter drum through pipes, and the outlet pipe of the sedimentation tank is connected through the water inlet. In the fiber filter cloth filter tank, the mud discharge pipe is connected to the bottom of the mud collecting bucket through the mud discharge port, and the two ends of the filter outlet pipe are respectively connected to the water outlet at the bottom of the filter drum and the filter water outlet. A fiber filter cloth reverse suction pump is installed at the bottom of the sludge tank, and the backwash suction port of the fiber filter cloth filter tank is connected to the fiber filter cloth reverse suction pump through a pipeline; mud pool.

The mud collecting bucket is in the shape of an inverted cone with an upward opening; the filter drum is in the shape of a cylinder with both ends sealed and the middle is empty, and the diameter of the opening top surface of the mud collecting bucket is larger than the diameter of the filter drum; the backwash suction port Can be fitted with fiber filter cloth; the fiber filter cloth filter pool also includes an automatic control cabinet and a liquid level gauge installed on the filter pool body, and the liquid level gauge, backwash suction port and driving device are all connected to the automatic control cabinet.

The integrated sewage advanced treatment device also includes a chlorine addition pipe; the clear water pool includes a clear water pool body, a chlorine addition interface, and a general water outlet located on the top of the pool body; the chlorine addition pipe extends to the pool through the chlorine addition interface. body bottom.

The anoxic pool, the aerobic pool, the sedimentation pool, the sludge pool, the fiber filter cloth filter pool, and the clean water pool are arranged in sequence.

The integrated sewage advanced treatment device of the utility model is aimed at point source sewage in cities and towns. It adopts sewage→grid→regulating pool→integrated sewage advanced treatment device→standard discharge process. After the domestic sewage is processed by this system, it can reach In the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002), the first-class A standard, the effluent meets the basic requirements for reuse water. Among them, the integrated sewage advanced treatment device is the utility model, which is the main part of the technological process. It is used to treat small and medium-sized point source sewage in cities and towns, and can be used for post-anaerobic treatment of aquaculture wastewater.

The integrated sewage advanced treatment device of the utility model integrates two treatment stages, biochemical treatment and separation and filtration of excess sludge, into one device.

The anoxic pool and the aerobic pool are filled with three-dimensional elastic fillers with high specific surface area. The three-dimensional elastic fillers are made of corrosion-resistant, temperature-resistant, and aging-resistant polyolefins and polyamides mixed with additives such as hydrophilic, adsorption, and thermal oxygen resistance. Made into filaments, the filament-shaped three-dimensional elastic fillers are interspersed and fixed on the corrosion-resistant, high-strength central rope, so that the filaments are arranged in a three-dimensional and uniform radial state, and the monomer of the suspended three-dimensional elastic filler is made. The effective area can be uniformly stretched and covered in three dimensions and all directions, so that air, water, and biofilm can be fully mixed and contacted and exchanged. The biofilm can not only be evenly implanted on each filament, but also maintain good activity and void variability. , and can obtain larger and larger specific surface area during operation, and can carry out good metabolism.

The fiber filter cloth of the fiber filter cloth filter pool of the integrated sewage advanced treatment device of the utility model forms a dense fiber layer during the filtration process and has excellent separation characteristics. During cleaning, the fibers simply clean up in the backwash, allowing residual solids to be easily removed. This improved fiber filter cloth filtration technology makes it possible to use very fine fibers to achieve correspondingly high separation efficiencies, while also achieving high hydraulic flow rates, handling extreme peak loads and enabling minimal backwash capacity. The fiber filter cloth filter is continuously filtered, and can still be filtered when the system is backwashed, and the filtering efficiency is high. Various types of fiber filter cloths with different precision are matched to specific applications. The operation and maintenance cost is low, and the maintenance time is less than 10 hours per year.

The integrated sewage advanced treatment device of the utility model can be installed buried, semi-buried, or installed above the ground. The fiber filter cloth filter pool is not affected by the external environment, stable in operation, low in investment, low in energy consumption, and easy to work. Fine, simple structure, low operating costs, small footprint, easy maintenance, easy movement, strong flexibility, can be used as temporary equipment for emergency use, and can be mass-produced. The integrated sewage advanced treatment device is easy to use, and the integrated design does not require any auxiliary accessories, and it operates automatically and is flexible in layout. The effluent quality of the treatment process is stable, meeting the requirements of national standards, and truly realizing low-carbon, energy-saving operation.

Description of drawings

Fig. 1 is a schematic structural view of an integrated sewage advanced treatment device in an embodiment of the present invention.

In the figure: 1—anaerobic tank, 1-1 general water inlet, 1-2 biological filler, 1-3 perforated aeration pipe, 1-4 supernatant return interface, 1-5 sludge return interface, 1-6 Anoxic pool air inlet, 1-7 water holes;

2—Aerobic tank, 2-1 microporous aerator, 2-2 air inlet of aerobic tank, 2-3 mixed liquid confluence port;

3—sedimentation tank, 3-1 sludge airlift device, 3-2 sludge cone bucket, 3-3 water distribution pipe, 3-4 inclined pipe packing, 3-5 outlet weir, 3-6 airlift inlet pipe, 3 -7 air extraction mud pipes, 3-8 water outlet pipes;

4—Sludge tank, 4-1 sludge return pump, 4-2 fiber filter reverse suction pump, 4-3 fiber filter cleaning device, 4-4 return sludge outlet, 4-5 supernatant outlet, 4-6 Sludge inlet pipe;

5—fiber filter cloth filter pool, 5-1 drive device, 5-2 drive shaft, 5-3 filter drum, 5-4 fiber filter cloth, 5-5 backwash suction port, 5-6 mud bucket, 5- 7 mud discharge pipe, 5-8 filter water outlet, 5-9 pressure sensor;

6—Clean water pool, 6-1 Chlorination pipe, 6-2 Chlorination interface, 6-3 Total water outlet;

7—water inlet pipe; 8—intake pipe; 9—chlorination pipe; 10—sludge return pipe; 11—supernatant liquid return pipe; 12—air lift sludge pipe.

Detailed ways

As shown in Figure 1, the integrated sewage advanced treatment device includes anoxic tank 1, aerobic tank 2, sedimentation tank 3, sludge tank 4, fiber filter cloth filter tank 5, clear water tank 6, water inlet pipe 7, air intake pipe 8. Chlorination pipe 9, sludge return pipe 10, supernatant liquid return pipe 11, air lift sludge pipe 12.

The anoxic tank includes the main water inlet 1-1, the biological filler 1-2, the perforated aeration pipe 1-3, the supernatant return interface 1-4, the sludge return interface 1-5, and the air inlet of the anoxic tank 1- 6. Water holes 1-7.

The aerobic tank includes a microporous aerator 2-1, an air inlet 2-2 of the aerobic tank, and a mixed liquid return port 2-3.

The sedimentation tank includes sludge airlift device 3-1, sludge cone bucket 3-2, water distribution pipe 3-3, inclined pipe packing 3-4, water outlet weir 3-5, airlift inlet pipe 3-6, airlift sludge Pipe 3-7, outlet pipe 3-8.

The sludge tank includes a sludge return pump 4-1, a fiber filter reverse suction pump 4-2, a fiber filter cleaning device 4-3, a return sludge outlet 4-4, a supernatant outlet 4-5, and a sludge inlet pipe 4-6.

The fiber filter cloth filter pool includes a drive device 5-1, a drive shaft 5-2 (that is, a central axis arranged in the middle of the filter drum), a filter drum 5-3, a fiber filter cloth 5-4, and a backwash suction port 5-5 , mud collecting bucket 5-6, mud discharge pipe 5-7, filter water outlet 5-8, pressure sensor 5-9.

The clear water pool comprises a chlorination extension pipe 6-1 (also can not add a chlorination extension pipe, directly stretches the chlorination pipe to the bottom of the clear water pool), a chlorination interface 6-2, and a total water outlet 6-3.

Both the anoxic pool and the aerobic pool are equipped with a three-dimensional elastic packing device; the bottom of the anoxic pool is provided with a perforated aeration pipe, the bottom of the aerobic pool is provided with a microporous aerator, and the perforated aeration pipe and The microporous aerators in the aerobic tank are connected to the external air supply pipeline (intake pipe) through pipelines; the anoxic tank and the bottom of the partition plate of the aerobic tank are provided with water holes; the water outlet of the aerobic tank and the sedimentation tank are arranged The water pipes are connected; a sludge return port and a supernatant liquid return port are provided on the side wall of the anoxic tank, and the above ports are respectively connected with the sludge return pipe and the supernatant liquid return pipe.

The sedimentation tank comprises a sedimentation tank body, a water distribution pipe, a conical sludge hopper, an inclined pipe filler, a sludge gas lift device, an outlet weir, and an outlet pipe; the water distribution pipe is connected to the outlet of the aerobic tank, and the The water distribution pipes are assembled horizontally, and a water distribution hole with a diameter of 20 mm is opened every 200 mm; the outlet pipe passes through the sludge tank and is connected to the fiber filter cloth filter tank.

The sludge tank is composed of a sludge tank body, an air lift sludge interface, a return sludge outlet, a sludge return pump, and a fiber filter cloth reverse suction pump; the air lift sludge interface is connected to the settling tank through the air lift return pipe The outlet of the sludge airlifting device is connected, the outlet of the return sludge is connected internally with the sludge return pump, and the outside is connected with the sludge return interface of the anoxic tank through the sludge return pipe; the fiber filter cloth reverse suction pump is connected with the fiber filter cloth Filter system backwash suction connection.

The fiber filter cloth filter tank includes a filter tank body, a driving device, a fiber filter cloth, a filter drum, a mud collection bucket, and a backwash suction port; the mud collection bucket is installed at the lower part of the filter tank body; the filter drum It is vertically arranged on the upper part of the filter tank body, and the filter drum is located directly above the mud collecting bucket; the filter drum is hollow cylindrical, and several water holes are arranged on the side wall of the filter drum, and the side wall of the filter drum is The outer surface of the wall is wrapped with fiber filter cloth; the drive device is installed on the upper end surface of the filter tank body, and the drive device is connected to the filter drum; the backwash suction port is installed next to the filter drum in the shell; the fiber filter cloth filter tank body is equipped with Water inlet (upper part adjacent to the side of the sludge tank), filter outlet (lower part of the side adjacent to the clear water tank); a water outlet is provided at the bottom of the filter drum, and a mud discharge port is provided at the bottom of the mud collecting bucket, and the filter outlet passes through the pipe ( Filtration outlet pipe) is connected to the water outlet at the bottom of the filter drum; a fiber filter cloth reverse suction pump is installed at the bottom of the sludge tank, and the backwash suction port of the fiber filter cloth filter tank is connected to the fiber filter cloth reverse suction pump through a pipe; the fiber filter cloth filter The bottom of the mud collecting bucket of the pool is connected to the sludge pool through the mud discharge pipe. The mud collecting bucket is an inverted cone-shaped funnel with an upward opening; the filter drum is in the shape of a cylinder with both ends sealed and the middle is empty, and the diameter of the opening top surface of the mud collecting bucket is larger than the diameter of the filter drum; the filter drum It is a water collecting drum made of horizontal perforated metal plate, and the backwash suction port can be attached to the fiber filter cloth; Shaped fibers are woven from fibers blended with nylon and acrylic fibers; the fiber filter cloth filter pool also includes an automatic control cabinet and a liquid level gauge installed on the filter pool body, the liquid level gauge, fiber filter cloth back suction Both the pump and drive are connected to the automatic control cabinet.

The characteristic of the fiber filter cloth filter tank is that the biologically treated water can only be discharged through the fiber filter cloth, and the surface of the filter cloth is gradually covered by the sludge layer, resulting in an increase in pressure drop. A liquid level sensor receives the pressure drop signal to control the opening of the backwash suction port, and collects the necessary water from the inside of the filter drum to clean the fiber filter cloth and realize the cleaning and regeneration of the filter cloth.

The clear water pool includes a clear water pool body, a chlorine addition interface, a chlorine addition pipe, and a total water outlet; the chlorine addition interface is connected to a chlorine-based disinfectant generating device through a chlorine addition pipe; the chlorine addition pipe extends to the bottom of the pool ; The clean water of the integrated sewage advanced treatment device is discharged from the main water outlet.

The main body of the utility model adopts the treatment process of hypoxia + biological contact oxidation + inclined tube precipitation + fiber filter cloth filtration + contact disinfection.

The biochemical pool is divided into anoxic pool 1 and aerobic pool 2. Sewage enters the anoxic tank 1 from the main water inlet 1-1, and the perforated aeration pipe 1-3 installed at the bottom of the anoxic tank 1 realizes air stirring and provides a certain amount of oxygen. The microorganisms in the anoxic tank 1 are in the anoxic state. At this time, the microorganisms are facultative microorganisms. They convert the organic nitrogen in the sewage into ammonia nitrogen, and at the same time use the organic carbon source as an electron donor to convert NO ₂ -N, NO ₃ -N Converted to N ₂ , also utilizes part of the organic carbon source and ammonia nitrogen to synthesize new cell matter. The anoxic pool 1 has the function of removing organic matter, and at the same time reduces the organic load of the subsequent aerobic pool 2 to facilitate nitrification, and at the same time relies on the high concentration of organic matter in the sewage to complete denitrification and finally eliminate nitrogen eutrophication pollution.

After the biochemical action of the anoxic pool 1, the sewage enters the aerobic pool 2 through the water holes 1-7, and the microporous aerator 2-1 installed at the bottom of the aerobic pool 2 performs oxygen supply and aeration. There is still a certain amount of organic matter and high nitrogen and ammonia in the sewage entering the aerobic tank 2, relying on autotrophic bacteria (nitrifying bacteria) to use the inorganic carbon source generated by the decomposition of organic matter or carbon dioxide in the air as a nutrient source to further oxidize the organic matter Decompose and convert ammonia nitrogen in sewage into NO ₂ -N and NO ₃ -N. Biological fillers 1-2 are installed in the anoxic pool 1 and the aerobic pool 2, and the entire biochemical treatment process depends on various microorganisms attached to the three-dimensional elastic fillers to complete. Part of the effluent from the aerobic tank 2 flows back to the anoxic tank 1 through the mixed liquid return port 2-3 for internal circulation, so as to achieve the purpose of denitrification.

The sewage after biochemical treatment has good sedimentation performance. The water distribution pipe 3-3 evenly distributes water and enters the sedimentation tank 3. The upper part of the sedimentation tank 3 is equipped with inclined tube packing 3-4. The countercurrent inclined tube packing is used for mud-water separation. The theory of shallow pool laminar flow increases the sedimentation area, shortens the sedimentation time, and improves the sedimentation efficiency. The supernatant after the mud-water separation flows through the outlet weir 3-5, flows through the outlet pipe 3-8 and enters the fiber filter cloth filter tank 4, and the sludge is deposited in the sludge cone bucket 3-2, and the sedimentation tank is equipped with a sludge air lift device 3 -1, the compressed air is connected to the air lift inlet 3-6, and the sludge deposited in the sludge cone bucket 3-2 is lifted by using the air lift principle, and flows through the air lift mud port 3-7, and the air lift sludge Pipe 12, sludge enter mud pipe 4-6, and then enter sludge pond 4.

The sludge in the sludge tank 4 is concentrated by gravity, and the concentrated sludge deposited at the bottom is lifted by the sludge return pump 4-1 and flows through the return sludge outlet 4-4, the sludge return pipe 10, and the sludge return interface 1-5 Enter the hypoxic pool. The supernatant flows automatically from the supernatant outlet 4-5, flows through the supernatant return pipe 11 and the supernatant return interface 1-4, and enters the anoxic pool. The fiber filter back-suction pump 4-2 is connected to the fiber filter cleaning device 4-3 through a pipeline, and then connected to the backwash suction port of the fiber filter cloth filter tank.

The clear water of the sedimentation tank 3 enters the fiber filter cloth filter tank 4 through the outlet pipe 3-8 for deep filtration treatment. The inner cavity of the fiber filter cloth filter tank 4 is vertically provided with a filter drum 5-3, and the filter drum 5-3 is hollow Cylindrical, water holes are provided on the side wall of the cylindrical filter drum, the filter drum is wrapped with fiber filter cloth 5-4, and the bottom of the filter drum is provided with a water outlet to connect with the clear water pool. The filter drum is also connected with the drive device 5-1 through the drive shaft 5-2, and the drive device 5-1 drives the filter drum 5-3 to rotate.

The filter drum 5-3 is a water collection drum made of horizontal perforated metal plates, and is equipped with a backwash suction port 5-5 attached to the fiber filter cloth 5-4 to remove large particles of suspended matter captured by the fiber filter cloth , so as to achieve the role of filtering. At the same time of backwashing, the driving device drives the filter drum to rotate to achieve the effect of 360° filter drum backwashing.

The fiber filter cloth 5-4 wrapped on the filter drum 5-3 is made of bundled fibers folded and woven into the base cloth. The bundled fibers are woven from fibers blended with nylon and acrylic fibers. The main advantages of the bundled fibers are In the filtration state, a dense fiber layer is formed on the surface of the fiber filter cloth. The fine and tight surface filter layer can intercept various solid suspended matter in the medium, and at the same time, the gap at the root of the fiber can make the filtrate pass through the fiber smoothly through the gap. The filter cloth enters the filter cavity and is discharged, which can greatly reduce the resistance loss of the fiber filter cloth and improve the fineness of the filtration system; the fiber filter cloth 5-4 can be selected according to different working conditions and water outlet requirements. bundle of fibers of length.

The fiber filter cloth filter tank is different from the conventional filter cloth filter system. The filter drum is not installed horizontally in an open container, but is vertically installed in the filter tank body.

The liquid to be filtered passes through the filter cloth from the outside to the inside, and through this process, the suspended solids are retained on the filter cloth. The filtrate then flows from the inside of the bowl to the outlet. With the increase of suspended solids, on the fiber filter cloth, the hydraulic resistance passes through the fiber filter cloth, so that the pressure in the filter tank body also increases. Once the liquid level (water cannot enter the filter drum in time so that the liquid level in the tank increases and the pressure increases) reaches the preset high pressure value, the filter cleaning cycle will start. Start the fiber filter reverse suction pump in the sludge tank, the backwash valve (set in the pipeline connected to the backwash suction port) is opened, and the filter drum rotates slowly at the same time. During backwashing, the filtrate is forced to pass through from the inside of the fiber filter cloth to the outside, and the fiber filter cloth is cleaned. The pressure outside the filter drum decreases, the liquid level in the pool will reach the preset low level (corresponding to the low pressure value), backwashing stops, and the filter drum stops rotating.

The fiber filter cloth filter tank is equipped with a mud collecting bucket at the bottom. During the filtration process, most of the suspended matter settles to the mud collecting bucket under the action of gravity, and flows back into the sludge tank through the mud discharge pipe.

The fiber filter cloth filter tank is equipped with an automatic control cabinet on the machine, and regular backwashing is realized through the liquid level switch (level gauge) installed in the filter tank body.

When the utility model is in use, chlorine-based disinfectant (chlorine dioxide or sodium hypochlorite) can be used for disinfection to kill microorganisms, and the chlorine-adding pipe is directly added to the bottom of the clear water pool and fully mixed with clear water to realize the effect of disinfection. The clean water can meet the first-class A standard in the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002), and the effluent can meet the basic requirements for reuse water.

The installation method of the integrated sewage advanced treatment device includes the following steps:

Step 1: Determine the installation positions of the anoxic pool, aerobic pool, sedimentation tank, sludge pool, fiber filter cloth filter pool, and clean water pool, and build the pool bodies respectively;

Step 2: Install the anoxic tank: Install the perforated aeration pipe at the bottom of the anoxic tank, connect the perforated aeration tube to the intake pipe through the pipe; set up the sludge return interface and the supernatant return interface on the side wall of the anoxic tank ; Connect the water inlet pipe; fill the biological filler in the pool body;

Step 3: Install the aerobic tank: Install the microporous aerator at the bottom of the aerobic tank; connect the microporous aerator to the intake pipe through the pipe; open an outlet on the side of the aerobic tank to connect the water distribution pipe of the sedimentation tank The water inlet; fill the pool body with biological filler; open a water hole at the bottom adjacent to the anoxic pool and the aerobic pool;

Step 4: Install the sedimentation tank: Install the sludge cone bucket at the bottom of the sedimentation tank, install the sludge air lift device at the bottom of the sludge cone bucket and connect the air lift inlet pipe and the air lift mud pipe, and connect the air lift inlet pipe to the inlet pipe ; Install the water distribution pipe horizontally above the sludge cone bucket and connect the water inlet of the water distribution pipe to the outlet on the side of the aerobic tank; install the inclined pipe filler above the water distribution pipe; outlet pipe;

Step 5: Install the sludge tank: Install the sludge return pump and the fiber filter reverse suction pump at the bottom of the sludge tank; install the sludge inlet pipe, set up the return sludge outlet on the sludge tank, and open the supernatant on the side outlet; connect one end of the sludge return pipe to the sludge return pump through the return sludge outlet, and connect the other end to the sludge return interface of the anoxic tank; connect one end of the supernatant return pipe to the supernatant outlet and the other end to the To the return interface of the supernatant in the anoxic tank; connect one end of the air lift sludge pipe to the air extraction pipe, and the other end to the sludge inlet pipe;

Step 6: Install the fiber filter cloth filter tank: including the following sub-steps:

A: Set the water inlet for connecting the outlet pipe of the sedimentation tank on the side wall of the tank body and connect the outlet pipe of the sedimentation tank, set the filter outlet on the side wall of the lower part, and install the sludge discharge pipe connected to the sludge tank at the bottom ; Seal the pool body after installing all the parts and devices in the pool body;

B: Install the mud collection bucket: Make the mud collection bucket according to the predetermined design requirements, first connect the mud discharge port and the mud discharge pipe at the bottom of the mud collection bucket, and then install the mud collection bucket to the lower part of the pool body;

C: Install the backwash suction port: Install the backwash suction port on the inner wall of the tank body, and connect the fiber filter cloth back suction pump of the sludge tank to the backwash suction port with pipes;

D: Install the filter drum and fiber filter cloth: wrap the fiber filter cloth on the outer surface of the filter drum so that the fiber filter cloth covers all the water holes on the filter drum; install the filter drum vertically into the pool Above the mud hopper, there is a central shaft (i.e. drive shaft 5-2) in the middle of the filter drum, and the upper end of the central shaft passes through the top surface of the pool body; the water outlet at the lower end of the filter drum and the filter water outlet are connected with a pipe; install When filtering the drum, pay attention to make the backwash suction port fit the fiber filter cloth;

E: Install the driving device: install the driving device on the top of the pool body and connect it with the central axis of the filter drum; pay attention to the drive device to drive the filter drum to rotate during installation;

F: Install the pressure sensor: install a pressure sensor for detecting the pressure in the pool body on the top surface of the pool body;

Step 7: Install the clean water pool: set up the main water outlet on the upper part of the pool body, and open the chlorine addition interface on the top; extend the chlorine addition pipe to the bottom of the pool body through the chlorine addition interface;

Step 8: Carry out debugging and complete the installation of the integrated sewage advanced treatment device.

The integrated sewage advanced treatment device can be installed buried, semi-buried, or above-ground. It is not affected by the external environment, stable in operation, low in investment, low in energy consumption, fine in workmanship, simple in structure, and low in operating costs. , Small footprint, easy maintenance, convenient movement, strong flexibility, can be used as temporary equipment for emergency use, and can be mass-produced. The integrated sewage advanced treatment device is easy to use, and the integrated design does not require any auxiliary accessories, and it operates automatically and is flexible in layout. The effluent quality of the treatment process is stable, meeting the requirements of national standards, and truly realizing low-carbon, energy-saving operation.

The above are only preferred embodiments of the present utility model, and the scope of protection of the present utility model is not limited thereto. All modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model are included in this utility model. within the scope of protection of utility models.

Claims (9)

1. The integrated sewage advanced treatment device, including the water inlet pipe, is characterized in that it also includes an anoxic pool connected to the water inlet pipe, an aerobic pool, a sedimentation tank, a sludge pool, a fiber filter cloth filter pool, a clear water pool, an air intake pipe, Sludge return pipe, supernatant return pipe, and airlift sludge pipe; the anoxic pool and the aerobic pool are adjacently arranged and connected through water holes; the sedimentation tank includes a water distribution pipe and an outlet pipe, and the water distribution pipe is connected An aerobic pool, the outlet pipe is connected to the fiber filter cloth filter pool; the fiber filter cloth filter pool includes a mud discharge pipe and a filter outlet pipe, the mud discharge pipe is connected to the sludge pool, and the filter outlet pipe is connected to the clear water pool; the anoxic pool, Both the aerobic tank and the sedimentation tank are connected to the intake pipe; the two ends of the sludge return pipe and the two ends of the supernatant return pipe are respectively connected to the anoxic tank and the sludge tank; the two ends of the air lift sludge pipe are connected to Sedimentation ponds and sludge ponds. 2. The integrated sewage advanced treatment device according to claim 1, characterized in that, a three-dimensional elastic packing device is provided in the anoxic pool and the aerobic pool; the bottom of the anoxic pool is provided with a perforated aeration tube, The bottom of the aerobic tank is provided with a microporous aerator; the perforated aeration pipe and the microporous aerator are respectively connected to the air intake pipe through pipelines; a partition is arranged between the anoxic tank and the aerobic tank, and the bottom A water hole is provided; the aerobic tank is provided with a water outlet connected to the water distribution pipe of the sedimentation tank; a sludge return interface and a supernatant return interface are provided on the side wall of the anoxic tank, and the sludge return interface, The supernatant liquid return interface is respectively connected with the sludge return pipe and the supernatant liquid return pipe. 3. The integrated sewage advanced treatment device according to claim 1, characterized in that, the settling tank comprises a sludge cone bucket located at the bottom of the pool, a water distribution pipe located above the sludge cone bucket, an inclined bucket located above the water distribution pipe Pipe filler, sludge airlift device installed at the bottom of the sedimentation tank, water outlet weir and outlet pipe located on the upper part of the sedimentation tank body; the water distribution pipe is connected to the aerobic tank, and the water distribution pipe is set horizontally, and the water distribution pipe is opened at intervals of 200mm A water distribution hole with a diameter of 20mm; one end of the outlet pipe is connected to the outlet weir, and the other end passes through the sludge tank to connect to the fiber filter cloth filter tank. 4. The integrated sewage advanced treatment device according to claim 3, characterized in that, the sludge air-lifting device is connected to the air-lifting pipe through the air-lifting inlet pipe, and connected to the air-lifting sludge pipe through the air-lifting sludge pipe. 5. The integrated sewage advanced treatment device according to claim 1, wherein the sludge tank includes a sludge return pump installed at the bottom of the sludge tank, a fiber filter reactor installed at the bottom of the sludge tank Suction pump, return sludge outlet, supernatant liquid outlet, sludge inlet pipe; sludge return interface is provided on the side wall of the anoxic tank, and the sludge return pump is connected to the return sludge outlet through pipelines, and the return sludge The mud outlet is connected to the sludge return interface of the anoxic tank through the sludge return pipe; the fiber filter cloth filter tank is provided with a backwash suction port, and the fiber filter cloth reverse suction pump is connected to the backwash suction port through a pipeline; the air lift sewage The mud pipe is connected to the sludge pool through the sludge inlet pipe; the supernatant liquid return pipe is connected to the sludge pool through the supernatant liquid outlet. 6. The integrated sewage advanced treatment device according to claim 1, wherein the fiber filter cloth filter tank includes a filter tank body, a driving device, a fiber filter cloth, a filter drum, a mud collecting bucket, a backwash Suction port; the mud collecting bucket is installed in the lower part of the filter pool body; the filter drum is vertically arranged on the upper part of the filter pool body, and the filter drum is located directly above the mud collecting bucket; the filter drum is hollow cylindrical , There are several water holes on the side wall of the filter drum, and the outer surface of the side wall of the filter drum is wrapped with fiber filter cloth; the driving device is installed on the upper end surface of the filter tank body, and the driving device is connected to the filter drum; backwash The suction port is installed next to the filter drum in the shell; the fiber filter cloth filter pool body is provided with a filter water outlet, the bottom of the filter drum is provided with a water outlet, and the bottom of the mud collecting bucket is provided with a mud discharge port, and the filter outlet passes through the pipe and The water outlet at the bottom of the filter drum is connected, the outlet pipe of the sedimentation tank is connected to the fiber filter cloth filter tank through the water inlet, the mud discharge pipe is connected to the bottom of the mud collecting bucket through the mud discharge port, and the two ends of the filter outlet pipe are respectively connected to the filter drum Water outlet and filter outlet at the bottom; A fiber filter cloth reverse suction pump is installed at the bottom of the sludge tank, and the backwash suction port of the fiber filter cloth filter tank is connected to the fiber filter cloth reverse suction pump through a pipeline; mud pool. 7. The integrated sewage advanced treatment device according to claim 6, characterized in that, the mud collecting bucket is in the shape of an inverted cone with an upward opening; the filter drum is in the shape of a cylinder with both ends sealed and the middle is empty The diameter of the top surface of the opening of the mud collecting hopper is greater than the diameter of the filter drum; the backwash suction port can be fitted with the fiber filter cloth; the fiber filter cloth filter tank also includes an automatic control cabinet and a filter installed on the filter tank body The liquid level gauge, the liquid level gauge, the backwash suction port and the driving device are all connected to the automatic control cabinet. 8. The integrated sewage advanced treatment device according to claim 1, characterized in that it also includes a chlorination pipe; the clear water pool includes a clear water pool body, a chlorine addition interface, and a general water outlet located at the upper part of the pool body; The chlorination pipe extends to the bottom of the pool body through the chlorination interface. 9. The integrated sewage advanced treatment device according to claim 1, characterized in that the anoxic pool, the aerobic pool, the sedimentation pool, the sludge pool, the fiber filter cloth filter pool, and the clean water pool are arranged in sequence.