CN113354193A - Intensive garden type sewage treatment system and treatment process - Google Patents

Abstract

The invention relates to the technical field of sewage treatment, in particular to an intensive garden type sewage treatment system and a treatment process; comprises a water treatment pool area and a device room; the construction of each subunit structure in the water treatment system is not centralized, so that the civil work is dispersed, and the high-standard civil work requirement of the water treatment system causes higher operation cost and large field management difficulty; therefore, the invention combines the water treatment pool area in the sewage treatment system with the field of the equipment room by arranging the combined pool in a similar circle shape, so that the intensification formed by the water treatment system is beneficial to the operation and maintenance in the future, the green belt constructed in the area outside the combined pool enables the effluent of the sewage treatment system to be directly used for irrigation for greening, and the water treatment system forms garden type layout, thereby not only meeting the operation requirement of the system and having clear function partitions, but also being more consistent and beautiful with the surrounding environment, and further realizing the intensification garden type function of the sewage treatment system.

Description

Intensive garden type sewage treatment system and treatment process

Technical Field

The invention relates to the technical field of sewage treatment, in particular to an intensive garden type sewage treatment system and a treatment process.

Background

The sewage of the farm mainly comprises urine, partial excrement and washing water, belongs to high-concentration organic sewage, and has high COD (chemical oxygen demand) and ammonia nitrogen concentration. The prior aquaculture wastewater treatment technology is mainly characterized in that suspended matters and chromaticity are removed firstly according to the characteristics of water quality, a coagulating sedimentation process is adopted, and organic matters, ammonia nitrogen and organic phosphorus are subjected to biochemical treatment, and because the concentration of pollutants is high, an anaerobic treatment process and an aerobic treatment process are adopted in consideration of cost and treatment effect.

At present, the cultivation wastewater treatment process is mainly divided into a plurality of independent plates: there are thus the following significant disadvantages: the land for the structures is not centralized, the civil engineering operation is scattered, the operation cost is high, and the field management difficulty is high. Secondly, pipelines among sewage treatment systems in the plant area are disordered and have poor attractiveness; thirdly, labor force still needs to be allocated in the factory area of the sewage treatment system, and unattended operation is not realized; and fourthly, the traditional technology discharges more biochemical sludge, and secondary pollution exists.

Meanwhile, the large-scale livestock and poultry industry has high cost and low profit and is difficult to bear the livestock and poultry wastewater treatment process with high treatment cost, wherein the culture of crops such as pasture and the like consumes a huge amount of water resources; the prior art has outstanding contradiction between treatment cost and low profit and high risk of cultivation. Therefore, when selecting the wastewater treatment process, the process and the treatment system with excellent structural layout, lower construction cost, lower operation and management cost and good treatment effect should be considered preferentially.

For example, a Chinese patent with the application number of CN201310255710.4 discloses a high-activity biological bed sewage treatment intensification system and a sewage treatment method, wherein the sewage treatment intensification system comprises a grid well, a preliminary sedimentation tank, a sludge acidification tank, a multi-stage desliming tank aerobic tank unit, an MBR membrane biological reaction tank and a disinfection tank which are connected in series; a filler is arranged in each desliming tank, an aerator unit is arranged at the lower part of each aerobic tank, an aerator unit is arranged at the lower part of the MBR membrane biological reaction tank, and each aerator unit is connected with an air blower through a pipeline; an MBR membrane module is arranged in the MBR membrane biological reaction tank; the technical scheme can not cause the sludge expansion in the activated sludge method, but can improve the effluent quality; in addition, the sewage is repeatedly scrubbed through the anaerobic HSB bacteria release/aerobic process to change the growth environment of the microorganisms, so that dominant bacteria are screened, enriched and fixed to form a high-activity biological bed, and the sewage is efficiently treated; however, the intensive sewage treatment system in the technical scheme only simply connects the functional tanks in series, so that the advantage of the intensive degree is not obvious enough, and the advantage of constructing the intensive sewage treatment system cannot be fully exerted.

In view of the above, the invention provides an intensive garden type sewage treatment system and treatment process, which solve the technical problems.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides an intensive garden type sewage treatment system and a treatment process, a water treatment pool area in the sewage treatment system is combined with a field of a facility room by arranging a round-like combined pool, so that the intensification formed by the water treatment system is beneficial to the later operation and maintenance, a green belt is built in an area outside the combined pool, the effluent of the sewage treatment system can be directly used for irrigation for greening, and the water treatment system is further formed into garden type layout, so that the operation requirement of the system is met, the function zoning is clear, and the system is more harmonious and beautiful with the surrounding environment, thereby realizing the intensive garden type function of the sewage treatment system

The invention relates to an intensive garden type sewage treatment system, which comprises a water treatment pool area and a facility room; the water treatment pool area divides the sewage in the water treatment pool area into independent water bodies in different treatment states according to a water treatment process, and the water treatment pool area finishes a water treatment process under the control of the equipment room; the water treatment pool areas and the equipment rooms are combined to form a combined pool similar to a circle, and the adjacent water treatment pool areas are sequentially arranged according to the water treatment process sequence; adjacent water treatment pool areas in the combined pool share one wall, a patrol channel is built on the combined pool, and a greening area is built on the circumferential outer side of the combined pool;

in the prior art, the construction of each subunit structure in the water treatment system is not centralized, so that the civil work is dispersed, and the high-standard civil work requirement of the water treatment system causes higher operation cost and large field management difficulty; meanwhile, the pipelines erected among the subunits are messy and unattractive; the on-duty workers in the water treatment system are inconvenient to master the site conditions of all water treatment pool areas in time and are inconvenient to carry out uniform water treatment process parameter adjustment among subunits;

therefore, the invention constructs a similar circular combined pool by combining the water treatment pool areas for water treatment process with the equipment rooms, so that the sewage to be treated enters each water treatment pool area in the combined pool in the water treatment process sequence, and pipelines required to be laid and communicated among the water treatment pool areas are reduced through the water treatment pool areas which are adjacently distributed, thereby reducing the construction cost and maintaining the aesthetic property, avoiding the dispersed construction of each subunit in the water treatment system, maximally reducing the floor area of the sewage treatment system, optimizing the structure and the layout of each subunit, and intensively establishing all the water treatment pool areas at one position, facilitating the construction and material management, and utilizing the optimal area perimeter ratio of the circular combined pool to match with the shared wall body in each water treatment pool area, thereby reducing the construction materials and the construction cost; the invention utilizes the combined pool which is arranged into a similar circle, and combines the water treatment pool area in the sewage treatment system with the field of the equipment room, so that the intensification formed by the water treatment system is beneficial to the operation and maintenance in the future, the green belt constructed in the area outside the combined pool enables the effluent of the sewage treatment system to be directly used for irrigation for greening, and the water treatment system forms garden type layout, thereby not only meeting the operation requirement of the system and having clear function partition, but also leading the water treatment system to be more harmonious and beautiful with the surrounding environment, and further realizing the intensification garden type function of the sewage treatment system.

Preferably, the water treatment pool area also comprises a pretreatment pool, a biochemical treatment pool and a deep treatment pool which are communicated in sequence; the equipment room comprises a pharmacy, a fan room and a central control room; the biochemical treatment tank also comprises a micro-exposure area, and the water treatment tank areas belonging to the micro-exposure area are annularly distributed in the combined tank; when the water treatment system operates, sewage passes through a grid pond, a water collecting pond, a solid-liquid separation platform, a sludge pond and an adjusting pond which are sequentially communicated in a pretreatment pond, solid particles mixed in the sewage are separated, then the primarily filtered sewage flows to a water inlet area, a steam stripping area, a micro-exposure area and a precipitation water outlet area which are sequentially communicated in a biochemical treatment pond, the water treatment pond area to which the micro-explosion area belongs occupies most of the area in the combined pond, the micro-exposure areas which are distributed in a surrounding way form a closed annular area in the combined pond, and an aeration pipe laid at the bottom of the micro-exposure area is matched, so that the flow of water in the micro-exposure area is circulated; through the design of annular cell body, the problem of silt settling, flow state instability has effectively been solved, the annular wall body who utilizes the district of exposing to the sun a little has reduced the hindrance to the water flow, COD in having maintained the district water of exposing to the sun a little, BOD, the high-efficient process of getting rid of ammonia nitrogen and total nitrogen, last fenton reaction tank that communicates in proper order in passing through the advanced treatment pond again, the delay reaction tank, the coagulation basin, the flocculation basin, the sedimentation tank, disinfection pond and clean water basin, further dispel remaining COD in the water, realize the decoloration and keep out water quality, thereby the operational effect of sewage treatment system has been promoted.

Preferably, Contraband frames which are fixed in a penetrating mode are further mounted on a wall body shared by the micro-exposure area and the adjacent water treatment pool areas, rotating water wheels are mounted at two ends of the Contraband frame, the water wheels at two ends of the Contraband frame are respectively arranged in the water treatment pool areas on two sides of the wall body, and the water wheels at two ends of the Contraband frame are connected through belt transmission; when the water treatment system operates, Contraband racks arranged on the shared wall body enable water in adjacent water treatment pool areas in the micro-exposure area to flow, the driving water wheels rotate, then the water wheels in the micro-exposure area are driven to rotate through the transmission connection of Contraband racks, fluid kinetic energy driven by a pump body in the adjacent water treatment pool areas is stirred by the transmission of the driving water wheels on the Contraband racks to the water in the micro-exposure area, the water flow in the micro-exposure area is promoted, the utilization rate of the water kinetic energy in the water treatment pool areas is enhanced, and therefore the operation effect of the sewage treatment system is improved.

Preferably, the patrol passage comprises a cross passage and a circular passage; the cross channel crosses the center of the combined pool, the circular channel surrounds the circumference of the combined pool, the inner side of the circular channel is communicated with the cross channel, and the outer side of the circular channel is communicated with the ground through a fixed channel on the combined pool; when the water treatment system operates, the on-site inspection of the water condition in each water treatment pool area is required, the inspection of personnel and daily maintenance are facilitated through the cross channel spanned in the central part of the combined pool and the circumferential annular channel, and meanwhile, on the similar-circular combined pool, the inspection channel formed by the annular channel and the cross channel optimizes the inspection path of the water treatment pool area, so that the operation effect of the sewage treatment system is improved.

Preferably, a circular ring frame is fixedly connected to the circumferential direction of the cross channel and is in sliding connection with the inner side of the circular ring channel; the center of the cross channel is also rotatably connected with a bearing frame, the bottom of the bearing frame is fixedly connected with a buoyancy tank, and the bearing frame is in transmission connection with the cross channel through a mounted torque motor; on the water treatment tank body at the bottom surface of the floating box, the water discharge amount of the floating box is equal to the gravity of the cross channel; when the water treatment system operates, the flotation tank is behind the water that soaks water treatment pool district, the cross passageway that makes on bearing the frame is in the suspended state, cooperation cross passageway upwards gliding ring frame of circumference, and then the revolving force of torque motor drive cross passageway has been reduced, utilize pivoted cross passageway on the combination pond, make the staff when needs patrol the water treatment pool district, cross passageway pivoted position is adjusted through well accuse room, make the staff be in the water treatment pool required position of patrolling in the cross passageway, so that observe the water situation of central authorities 'annular little exposure district position everywhere, thereby sewage treatment system's operational effect has been promoted.

Preferably, the ring frame is positioned above the inner side of the wall body of the micro-exposure area, the bottom of the ring frame is fixedly connected with a vertical plate, and the vertical plate extends into a water body of the micro-exposure area; the ring frame is fixedly connected with a guardrail, and the guardrail on the ring frame and the guardrail of the cross channel form a fan-shaped fence area; the circular channel is only provided with a guardrail fixedly on the outer side; when the water treatment system operates, the water that exposes to the sun district flow is used and is stretched into on it, then produce the motive force through the ring frame to the cross passageway of suspended state, it carries out pivoted drive power to reduce torque motor drive cross passageway, through the inboard guardrail of cancellation ring channel, and set up the sectorial rail district of guardrail formation on cross passageway and ring frame, then maintained the inboard protective function who is in the guardrail among the change intercommunication position of ring channel and cross channel, the installation requirement of guardrail on the tour passageway has been satisfied, thereby sewage treatment system's operational effect has been stabilized.

Preferably, a monitoring rod is further erected on the cross channel at the central part of the ring frame, and a camera is rotatably mounted on the monitoring rod; when the water treatment system operates, through setting up the monitoring lever in cross passageway center department, make the camera of installation on the monitoring lever can monitor the situation in each water treatment pond district in the combined pool, and utilize the fan-shaped field of vision of camera to evenly separate the regional of class circular combined pool, the rotation process of cooperation camera on the monitoring lever, make a camera can reach the whole control to the combined pool, the monitoring cost to each water treatment pond district has been reduced, and then upload the monitoring information in well accuse room with the combined pool, the realization is to the unmanned on duty in water treatment pond district, thereby sewage treatment system's operational effect has been promoted.

The invention relates to an intensive garden type sewage treatment process, which is suitable for the intensive garden type sewage treatment system and comprises the following steps:

s1, wastewater pretreatment: introducing sewage to be treated into a pretreatment tank at the peripheral edge of the combined tank, and sequentially treating the sewage by a grating tank, a water collecting tank, a solid-liquid separation platform, a sludge tank and an adjusting tank to separate solid impurities in the sewage and enable the concentration of pollutants in the sewage to be in a uniform distribution state; the pretreatment tank is arranged at the peripheral edge of the combined tank, so that the energy loss of water flowing in adjacent water treatment tank areas is reduced, wherein the grid tank is used for separating floating objects in sewage, then the gathered sewage to be treated is mixed in the water collecting tank, the water quality condition of the sewage is balanced, the solid-liquid separation platform is used for removing solid matters in the sewage, then the water content of the sludge is reduced through the concentration process of the sludge tank, and finally the pretreated sewage is gathered in the adjusting tank and used for controlling the load of the subsequent process on sewage treatment to be in a stable range;

s2, fermentation and nitration: guiding the sewage pretreated in the step S1 into a biochemical treatment tank of a water treatment tank area, and leading the sewage into a micro-aeration area in a combined tank from a water inlet area and an air lifting area, wherein the micro-aeration area adopts a denitrification process taking a short-cut denitrification technology as a core, an aeration pipe at the bottom of the micro-aeration area is matched with a water wheel on a wall Contraband frame, so that a water body is kept to flow along the annular water treatment tank area, and the water body in the micro-aeration area provides sufficient carbon source for the denitrification process in the micro-aeration area; by adopting the short-range denitrification technology to carry out nitrification denitrification, compared with the traditional AO technology, COD, BOD, ammonia nitrogen and total nitrogen are efficiently removed in the tank body of the micro-aeration area, the effect of sludge discharge reduction is realized, secondary pollution is reduced, the subsequent operation cost is lower, the sludge disposal cost is not required to be additionally increased, and the system is in a higher automatic operation level by matching with a camera arranged at the center of the combined tank, the requirement on field operators is low, and then unattended operation is realized;

s3, Fenton oxidation: the sewage subjected to the step of S2 denitration is continuously guided to a Fenton reaction tank in the advanced treatment tank, and organic carboxylic acid, alcohol and ester in the sewage are oxidized into inorganic compounds so as to remove organic pollutants difficult to degrade; two or more Fenton reaction tanks are arranged in the advanced treatment tank, so that the treatment effect on refractory organic matters in the sewage is kept, and hydrogen peroxide and iron ion raw materials in the Fenton reaction are alternately supplemented;

s4, flocculation disinfection: and after the sewage in the S3 completely reacts, the residual suspended matters in the sewage are adsorbed and separated by the sedimentation tank and the flocculation tank in sequence, the sewage is led into the clean water tank for temporary storage after being disinfected, and the stored water in the clean water tank is directly discharged when irrigation is needed.

The invention has the following beneficial effects:

1. the invention combines the water treatment pool area in the sewage treatment system and the field of the equipment room by arranging the combined pool in a similar circle shape, so that the intensification formed by the water treatment system is beneficial to the operation and maintenance in the future, the green belt constructed in the area outside the combined pool enables the effluent of the sewage treatment system to be directly used for irrigation for greening, and the water treatment system forms garden type layout, thereby not only meeting the operation requirement of the system and having clear function partition, but also being more harmonious and beautiful with the surrounding environment, and further realizing the intensification garden type function of the sewage treatment system.

2. According to the invention, through the design of the annular tank body, the problems of sludge deposition and unstable flow state are effectively solved, the obstruction to the water body flow is reduced by utilizing the annular wall body of the micro-exposure area, the high-efficiency removal process of COD, BOD, ammonia nitrogen and total nitrogen in the water body of the micro-exposure area is further maintained, and finally, the residual COD in the water body is further removed through the Fenton reaction tank, the delay reaction tank, the coagulation tank, the flocculation tank, the sedimentation tank, the disinfection tank and the clean water tank which are sequentially communicated in the advanced treatment tank, so that the decoloration is realized and the quality of outlet water is kept.

3. The invention is convenient for personnel to patrol and maintain in daily life by the cross channel crossing the center of the combined pool and the circular channel on the circumferential direction, and meanwhile, on the similar circular combined pool, the patrol channel formed by the circular channel and the cross channel also optimizes the patrol path of the water treatment pool area.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a perspective view of a sewage treatment system according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a flow chart of a sewage treatment process in the present invention;

in the figure: 1. a water treatment pool area; 11. a pretreatment tank; 12. a biochemical treatment tank; 121. a micro-exposure area; 13. a deep treatment tank; 14. contraband shelf; 141. a water wheel; 2. a facility room; 3. a combined pool; 4. a patrol passage; 41. a cross channel; 42. a circular ring channel; 43. a guardrail; 44. a ring frame; 441. a vertical plate; 45. a carrier; 46. a buoyancy tank; 47. a monitoring lever; 471. a camera; 5. and (5) greening areas.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the intensive garden type sewage treatment system of the present invention comprises a water treatment pool area 1 and a facility room 2; the water treatment pool area 1 divides the sewage in the water treatment pool area into independent water bodies in different treatment states according to a water treatment process, and the water treatment pool area 1 finishes a water treatment process under the control of the equipment room 2; the water treatment pool area 1 and the equipment room 2 are combined to form a circular-like combined pool 3, and the adjacent water treatment pool areas 1 are sequentially arranged according to the water treatment process sequence; adjacent water treatment pool areas 1 in the combined pool 3 share one wall, a patrol passage 4 is also built on the combined pool 3, and a greening area 5 is also built on the circumferential outer side of the combined pool 3;

in the prior art, the construction of each subunit structure in the water treatment system is not centralized, so that the civil work is dispersed, and the high-standard civil work requirement of the water treatment system causes higher operation cost and large field management difficulty; meanwhile, the pipelines erected among the subunits are messy and unattractive; the on-duty workers in the water treatment system are inconvenient to master the site conditions of each water treatment pool area 1 in time, and are inconvenient to carry out uniform water treatment process parameter adjustment among subunits;

therefore, the invention constructs a similar circular combined pool 3 by combining the water treatment pool areas 1 for water treatment process with the equipment room 2, so that the sewage to be treated enters each water treatment pool area 1 in the combined pool 3 in the water treatment process sequence, and pipelines required to be laid and communicated are reduced through each water treatment pool area 1 which is adjacently distributed, thereby reducing the construction cost and maintaining the aesthetic property, avoiding the dispersed construction of each subunit in the water treatment system, maximally reducing the floor area of the sewage treatment system, optimizing the structure and the layout of each subunit, and intensively constructing all the water treatment pool areas 1 at one position, facilitating the construction and material management, and utilizing the optimal area perimeter ratio of the circular combined pool 3 to match with the shared wall body in each water treatment pool area 1, thereby reducing the construction materials and construction cost; the invention utilizes the combined pool 3 which is arranged into a similar circle, and combines the water treatment pool area 1 in the sewage treatment system with the field of the equipment room 2, so that the intensification formed by the water treatment system is beneficial to the operation and maintenance in the future, the green belt constructed in the area outside the combined pool 3 ensures that the effluent of the sewage treatment system can be directly used for irrigation for greening, and the water treatment system forms garden type layout, thereby not only meeting the operation requirement of the system and having clear function partitions, but also leading the water treatment system to be more harmonious and beautiful with the surrounding environment, and further realizing the intensification garden type function of the sewage treatment system.

As an embodiment of the invention, the water treatment pool area 1 also comprises a pretreatment pool 11, a biochemical treatment pool 12 and a deep treatment pool 13 which are communicated in sequence; the equipment room 2 comprises a pharmacy, a fan room and a central control room; the biochemical treatment tank 12 also comprises a micro-exposure area 121, and the water treatment tank areas 1 to which the micro-exposure area 121 belongs are annularly distributed in the combined tank 3; when the water treatment system is in operation, sewage passes through a grid pond, a water collecting pond, a solid-liquid separation platform, a sludge pond and an adjusting pond which are sequentially communicated in a pretreatment pond 11, solid particles mixed in the sewage are separated, then the primarily filtered sewage flows to a water inlet area, a steam stripping area, a micro-exposure area 121 and a precipitation water outlet area which are sequentially communicated in a biochemical treatment pond 12, a water treatment pond area 1 to which a micro-explosion area belongs occupies most of the area of a combined pond 3, the micro-exposure areas 121 which are distributed in a surrounding mode form a closed annular area in the combined pond 3, and the flow of water in the micro-exposure area 121 is circulated by matching with aeration pipes laid at the bottom of the micro-exposure area 121; through the design of annular cell body, the problem of silt settling, flow state instability has effectively been solved, the annular wall body who utilizes little exposure area 121 has reduced the hindrance to the water flow, COD in the area 121 water that then has maintained little exposure, BOD, the high-efficient process of getting rid of ammonia nitrogen and total nitrogen, last fenton reaction tank that communicates in proper order in the advanced treatment pond 13 of passing through again, the delay reaction tank, the coagulation tank, the flocculation basin, the sedimentation tank, disinfection pond and clean water basin, further dispel remaining COD in the water, realize the decoloration and keep out water quality, thereby the operation effect of sewage treatment system has been promoted.

As an embodiment of the invention, Contraband frames 14 which penetrate through and are fixed are further installed on the wall shared by the micro-exposure area 121 and the adjacent water treatment pool areas 1, water wheels 141 which rotate are installed at two ends of the Contraband frame 14, the water wheels 141 at two ends of the Contraband frame 14 are respectively arranged in the water treatment pool areas 1 at two sides of the wall, and the water wheels 141 at two ends of the Contraband frame 14 are connected together through belt transmission; when the water treatment system operates, the Contraband racks 14 arranged on the shared wall body enable the water bodies in the adjacent water treatment pool areas 1 of the micro-exposure area 121 to flow, the water wheels 141 are driven to rotate, then the water wheels 141 of the micro-exposure area 121 are driven to rotate through the transmission connection of the Contraband racks 14, the fluid kinetic energy driven by the pump body in the adjacent water treatment pool areas 1 is transferred to the water bodies of the micro-exposure area 121 through the water wheels 141 driven by the Contraband racks 14, the water body flow of the micro-exposure area 121 is promoted, the utilization rate of the water body kinetic energy in the water treatment pool areas 1 is enhanced, and therefore the operation effect of the sewage treatment system is improved.

As an embodiment of the present invention, the patrol passage 4 includes a cross passage 41 and a circular passage 42; the cross channel 41 crosses the center of the combined tank 3, the circular channel 42 surrounds the circumferential direction of the combined tank 3, the inner side of the circular channel 42 is communicated with the cross channel 41, and the outer side of the circular channel 42 is communicated with the ground through a fixed channel on the combined tank 3; when the water treatment system operates, the on-site inspection of the water conditions in each water treatment pool area 1 is required, the inspection and the daily maintenance of personnel are facilitated by the arrangement of the cross channel 41 crossing the center of the combined pool 3 and the circumferential ring channel 42, and meanwhile, on the similar-circular combined pool 3, the inspection channel 4 formed by the ring channel 42 and the cross channel 41 optimizes the inspection path of the water treatment pool area 1, so that the operation effect of the sewage treatment system is improved.

As an embodiment of the invention, a circular ring frame 44 is further fixedly connected to the circumferential direction of the cross channel 41, and the ring frame 44 is slidably connected with the inner side of the circular ring channel 42; the center of the cross channel 41 is also rotatably connected with a bearing frame 45, the bottom of the bearing frame 45 is fixedly connected with a buoyancy tank 46, and the bearing frame 45 is in transmission connection with the cross channel 41 through a mounted torque motor; on the water treatment tank body at the bottom surface of the floating box 46, the water discharge amount of the floating box 46 is equal to the gravity of the cross channel 41; when the water treatment system operates, the buoyancy tank 46 is behind the water body of the immersed water treatment pool area 1, the cross channel 41 on the bearing frame 45 is in a suspension state, the ring frame 44 which is matched with the upward sliding of the circumference of the cross channel 41 is arranged, then the rotating force of the torque motor for driving the cross channel 41 is reduced, the rotating cross channel 41 on the combined pool 3 is utilized, so that the worker can patrol the water treatment pool area 1 as required, the rotating position of the cross channel 41 is adjusted through the central control room, the worker can be in the required patrol position in the water treatment pool area 1 on the cross channel 41, the water body condition of the positions of the central annular micro-exposure area 121 can be observed conveniently, and the operation effect of the sewage treatment system is improved.

As an embodiment of the present invention, the ring frame 44 is located above the inner side of the wall of the micro-exposure area 121, the bottom of the ring frame 44 is further fixedly connected with a vertical plate 441, and the vertical plate 441 extends into the water body of the micro-exposure area 121; the ring frame 44 is also fixedly connected with a guardrail 43, and the guardrail 43 on the ring frame 44 and the guardrail 43 of the cross channel 41 form a fan-shaped fence area; the circular channel 42 is only provided with a guardrail 43 on the outer side; when the water treatment system operates, the water body flowing in the micro-exposure area 121 acts on the water body extending into the micro-exposure area, then the ring frame 44 generates a driving force for the cross channel 41 in a suspension state, the torque motor is reduced to drive the cross channel 41 to rotate, the guardrail 43 on the inner side of the ring channel 42 is cancelled, the guardrail 43 is arranged on the cross channel 41 and the ring frame 44 to form a fan-shaped fence area, then the protection function of the guardrail 43 in the change communication position between the inner side of the ring channel 42 and the cross channel 41 is maintained, the installation requirement of the guardrail 43 on the inspection channel 4 is met, and the operation effect of the sewage treatment system is stabilized.

As an embodiment of the present invention, a monitoring rod 47 is further mounted on the cross channel 41 at the central portion of the ring frame 44, and a camera 471 is rotatably mounted on the monitoring rod 47; when the water treatment system operates, through setting up the monitoring lever 47 in cross passageway 41 center department, make the camera 471 of installation on the monitoring lever 47 can monitor the situation of each water treatment pond district 1 in the combination pond 3, and utilize the fan-shaped field of vision of camera 471 to evenly separate the regional of class circular combination pond 3, cooperation camera 471 is the rotation process on monitoring lever 47, make a camera 471 can reach the whole control to combination pond 3, the monitoring cost to each water treatment pond district 1 has been reduced, and then the monitoring information that will make up pond 3 in well accuse room uploads, the realization is to the unmanned on duty of water treatment pond district 1, thereby the operation effect of sewage treatment system has been promoted.

The invention relates to an intensive garden type sewage treatment process, which is suitable for the intensive garden type sewage treatment system and comprises the following steps:

s1, wastewater pretreatment: the sewage to be treated is firstly introduced into a pretreatment tank 11 at the peripheral edge of a combined tank 3, and is sequentially treated by a grating tank, a water collecting tank, a solid-liquid separation platform, a sludge tank and an adjusting tank, so that solid impurities in the sewage are separated, and the concentration of pollutants in the sewage is in a uniform distribution state; the pretreatment tank 11 is arranged at the peripheral edge of the combined tank 3, so that the energy loss of water body flowing in the adjacent water treatment tank zone 1 is reduced, wherein the grid tank is used for separating floating objects in sewage, then the gathered sewage to be treated is mixed in the water collecting tank, the water quality condition of the sewage is balanced, the solid-liquid separation platform is used for removing solid matters in the sewage, then the water content of the sludge is reduced through the concentration process of the sludge tank, and finally the pretreated sewage is gathered in the adjusting tank and is used for controlling the load of the subsequent process on sewage treatment to be in a stable range;

s2, fermentation and nitration: the sewage pretreated in the step S1 is guided into the biochemical treatment tank 12 of the water treatment tank area 1 and is led into the micro-aeration area 121 inside the combined tank 3 through a water inlet area and a gas stripping area, the micro-aeration area 121 adopts a denitrification process taking a short-cut denitrification technology as a core, an aeration pipe at the bottom of the micro-aeration area 121 is matched with a water wheel 141 on a wall Contraband frame 14, the water body is kept to flow along the annular water treatment tank area 1, and the water body of the micro-aeration area 121 is enabled to provide sufficient carbon source for the denitrification process carried out in the micro-aeration area 121; by adopting the short-range denitrification technology to carry out nitrification denitrification, compared with the traditional AO technology, COD, BOD, ammonia nitrogen and total nitrogen are efficiently removed in the tank body of the micro-aeration area 121, the effect of sludge discharge reduction is realized, secondary pollution is reduced, the subsequent operation cost is lower, the sludge disposal cost is not required to be additionally increased, and the system is in a higher automatic operation level by matching with a camera 471 which is arranged at the center of the combined tank 3 for monitoring, the requirement on field operators is low, and then unattended operation is realized;

s3, Fenton oxidation: the sewage subjected to the step of S2 denitration is continuously guided to a Fenton reaction tank in the advanced treatment tank 13, and organic carboxylic acid, alcohol and ester in the sewage are oxidized into inorganic compounds so as to remove organic pollutants difficult to degrade; by arranging two or more Fenton reaction tanks in the advanced treatment tank 13, the treatment effect on refractory organic matters in the sewage is kept, and hydrogen peroxide and iron ion raw materials in the Fenton reaction are alternately supplemented;

s4, flocculation disinfection: and after the sewage in the S3 completely reacts, the residual suspended matters in the sewage are adsorbed and separated by the sedimentation tank and the flocculation tank in sequence, the sewage is led into the clean water tank for temporary storage after being disinfected, and the stored water in the clean water tank is directly discharged when irrigation is needed.

The specific working process is as follows:

the water treatment pool areas 1 for performing the water treatment process are combined with the equipment room 2 to construct a circular combined pool 3, so that sewage to be treated enters the water treatment pool areas 1 in the combined pool 3 in the water treatment process sequence, and pipelines needing to be laid and communicated among the water treatment pool areas 1 are reduced through the water treatment pool areas 1 which are distributed adjacently, so that the construction cost is reduced, the attractiveness is kept, the dispersed construction of all subunits in a water treatment system is avoided, the floor area of the sewage treatment system is reduced to the maximum extent, the structure and the layout of all subunits are optimized, all the water treatment pool areas 1 are intensively built at one position, the construction and material management are facilitated, and the construction materials and the construction cost can be reduced by utilizing the optimal area perimeter ratio of the circular combined pool 3 and matching with a shared wall body in each water treatment pool area 1; the design of the annular tank body effectively solves the problems of sludge settling and unstable flow state, the annular wall body of the micro-exposure area 121 is utilized to reduce the obstruction to the water body flow, the efficient removal process of COD, BOD, ammonia nitrogen and total nitrogen in the water body of the micro-exposure area 121 is maintained, and finally the residual COD in the water body is further removed through the Fenton reaction tank, the delay reaction tank, the coagulation tank, the flocculation tank, the sedimentation tank, the disinfection tank and the clean water tank which are sequentially communicated in the advanced treatment tank 13, so that the decoloration is realized and the effluent quality is kept; the Contraband frames 14 arranged on the common wall body enable the water bodies in the adjacent water treatment pool areas 1 of the micro-exposure area 121 to flow and drive the water wheels 141 to rotate, and then the water wheels 141 of the micro-exposure area 121 are driven to rotate through the transmission connection of the Contraband frames 14, so that the fluid kinetic energy driven by the pump body in the adjacent water treatment pool areas 1 is transferred to the water bodies of the micro-exposure area 121 through the water wheels 141 driven on the Contraband frames 14 to be stirred, the water body flow of the micro-exposure area 121 is promoted, and the utilization rate of the water body kinetic energy in the water treatment pool areas 1 is enhanced; the cross channel 41 and the circumferential ring channel 42 which are arranged in the center of the combined pool 3 in a crossing way are convenient for personnel to patrol and daily overhaul, and meanwhile, on the similar-circular combined pool 3, the patrol channel 4 formed by the ring channel 42 and the cross channel 41 also optimizes the patrol path of the water treatment pool area 1; the setting is at the monitoring lever 47 of cross passageway 41 center department, make the camera 471 of installation on the monitoring lever 47 can monitor the situation of each water treatment pond district 1 in the combination pond 3, and utilize the fan-shaped view of camera 471 to evenly separate the regional of class circular combination pond 3, cooperation camera 471 is the rotation process on monitoring lever 47, make a camera 471 can reach the whole control to combination pond 3, the monitoring cost to each water treatment pond district 1 has been reduced, and then upload the monitoring information who makes up pond 3 in well accuse room, the realization is on duty to water treatment pond district 1's unmanned on duty.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. An intensive garden type sewage treatment system comprises a water treatment pool area (1) and a facility room (2); the water treatment pool area (1) divides sewage in the water treatment pool area into independent water bodies in different treatment states according to a water treatment process, and the water treatment pool area (1) completes a water treatment process under the control of the equipment room (2); the method is characterized in that: the water treatment pool area (1) and the equipment room (2) are combined to form a circular-like combined pool (3), and the adjacent water treatment pool areas (1) are sequentially arranged according to the water treatment process sequence; a wall body is shared by adjacent water treatment pool areas (1) in the combined pool (3), a patrol passage (4) is built on the combined pool (3), and a greening area (5) is built on the circumferential outer side of the combined pool (3).

2. An intensive garden-type sewage treatment system according to claim 1, characterized in that: the water treatment pool area (1) also comprises a pretreatment pool (11), a biochemical treatment pool (12) and a deep treatment pool (13) which are communicated in sequence; the equipment room (2) comprises a pharmacy, a fan room and a central control room; the biochemical treatment tank (12) also comprises a micro-exposure area (121), and the water treatment tank areas (1) of the micro-exposure area (121) are annularly distributed in the combined tank (3).

3. An intensive garden-type sewage treatment system according to claim 2, characterized in that: the common wall body of the micro-exposure area (121) and the adjacent water treatment pool areas (1) is also provided with Contraband frames (14) which are fixed in a penetrating mode, two ends of the Contraband frames (14) are provided with rotating water wheels (141), the water wheels (141) at two ends of the Contraband frames (14) are respectively arranged in the water treatment pool areas (1) at two sides of the wall body, and the water wheels (141) at two ends of the Contraband frames (14) are connected through belt transmission.

4. An intensive garden-type sewage treatment system according to claim 1, characterized in that: the patrol passage (4) comprises a cross passage (41) and a circular passage (42); the cross channel (41) crosses the center of the combined pool (3), the circular ring channel (42) surrounds the periphery of the combined pool (3), the inner side of the circular ring channel (42) is communicated with the cross channel (41), and the outer side of the circular ring channel (42) is communicated with the ground through a fixed channel on the combined pool (3).

5. An intensive garden-type sewage treatment system according to claim 4, wherein: a circular ring frame (44) is fixedly connected to the circumferential direction of the cross channel (41), and the ring frame (44) is in sliding connection with the inner side of the circular channel (42); the center of the cross channel (41) is also rotatably connected with a bearing frame (45), the bottom of the bearing frame (45) is fixedly connected with a buoyancy tank (46), and the bearing frame (45) is in transmission connection with the cross channel (41) through a mounted torque motor; on the water treatment pond body of flotation tank (46) bottom surface, the displacement of flotation tank (46) equals the gravity of cross passageway (41).

6. An intensive garden-type sewage treatment system according to claim 5, wherein: the ring frame (44) is positioned above the inner side of the wall body of the micro-exposure area (121), the bottom of the ring frame (44) is fixedly connected with a vertical plate (441), and the vertical plate (441) extends into the water body of the micro-exposure area (121); the ring frame (44) is also fixedly connected with a guardrail (43), and the guardrail (43) on the ring frame (44) and the guardrail (43) of the cross channel (41) form a fan-shaped fence area; the circular channel (42) is only provided with a guardrail (43) on the outer side.

7. An intensive garden-type sewage treatment system according to claim 6, wherein: a monitoring rod (47) is further erected on the cross channel (41) in the center of the ring frame (44), and a camera (471) is rotatably mounted on the monitoring rod (47).

8. An intensive garden type sewage treatment process is characterized in that: the sewage treatment process is applicable to the intensive garden type sewage treatment system of any one of claims 1 to 7, and comprises the following steps:

s1, wastewater pretreatment: sewage to be treated is firstly introduced into a pretreatment tank (11) at the peripheral edge of a combined tank (3), and is sequentially treated by a grating tank, a water collecting tank, a solid-liquid separation platform, a sludge tank and an adjusting tank to separate solid impurities in the sewage and enable the concentration of pollutants in the sewage to be in a uniform distribution state;

s2, fermentation and nitration: the sewage pretreated in the S1 is guided into a biochemical treatment tank (12) of a water treatment tank area (1) and is led into a micro-aeration area (121) inside a combined tank (3) through a water inlet area and a gas stripping area, the micro-aeration area (121) adopts a denitrification process taking a short-range denitrification technology as a core, an aeration pipe at the bottom of the micro-aeration area (121) is matched with a water wheel (141) on a wall Contraband frame (14) to keep a water body to flow along the annular water treatment tank area (1), so that the water body of the micro-aeration area (121) provides sufficient carbon source for the denitrification process in the micro-aeration area (121);

s3, Fenton oxidation: the sewage subjected to the step of S2 denitration is continuously guided to a Fenton reaction tank in the advanced treatment tank (13) to oxidize organic carboxylic acid, alcohol and ester in the sewage into inorganic compounds so as to remove organic pollutants difficult to degrade;

s4, flocculation disinfection: and after the sewage in the S3 completely reacts, the residual suspended matters in the sewage are adsorbed and separated by the sedimentation tank and the flocculation tank in sequence, the sewage is led into the clean water tank for temporary storage after being disinfected, and the stored water in the clean water tank is directly discharged when irrigation is needed.

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