CN213708041U - Integrated equipment for distributed domestic sewage treatment - Google Patents

Abstract

The utility model discloses an integration equipment for distributed domestic sewage handles, including box formula major structure, integration equipment outside sets up water inlet and delivery port, and integration equipment is inside to be separated into 5 regions through first baffle, second baffle, third baffle, fourth baffle, is oxygen deficiency groove, good oxygen groove No. two, dephosphorization precipitation tank, automatically controlled equipment room in proper order. The integrated device has stable treatment effect, small residual sludge amount and low operation cost, can be remotely operated, maintained and regulated, and can be produced in an integrated and large-scale manner; the integrated equipment is controlled to run through a PLC (programmable logic controller) electric cabinet in the electric control equipment room, the PLC electric cabinet uploads running parameters to the cloud platform, and remote control is carried out through the mobile phone client and the computer webpage synchronously.

Description

Integrated equipment for distributed domestic sewage treatment

Technical Field

The utility model relates to a sewage treatment device technical field, concretely relates to an integrated equipment for distributed domestic sewage treatment.

Background

Distributed sewage treatment is relative to centralized treatment of sewage, and mainly means that sewage is subjected to in-situ treatment so as to reach the discharge standard. The municipal sewage treatment system is a centralized treatment system, and sewage in a defined sewage discharge range is collected and then conveyed to a sewage treatment plant through a pipe network system for unified centralized treatment. In the centralized treatment mode, the investment of municipal pipe networks accounts for 60-70% of the investment of sewage treatment, if a certain area is remote and the amount of generated sewage is small, the investment of the pipe network part is possibly overlarge if the sewage is connected into the pipe network, and the sewage can be treated independently, and compared with the large-scale centralized treatment, the treatment of the sewage is distributed treatment. For example, in vast rural areas of China at present, the economic development degree is relatively lagged behind, but the problem of water pollution is urgent, and distributed treatment is a good choice. For example, tourist attractions and villa vacation areas are far away from cities, and the water quality and water quantity change is large, so that the method is more suitable for using a distributed sewage treatment mode.

The existing distributed sewage treatment mode mainly comprises an artificial wetland, an ecological ditch, integrated treatment equipment, a combined mode of the integrated treatment equipment and the ecological treatment and the like, and can meet the requirements of pollutant discharge standards of urban sewage treatment plants under the conditions of stable water quality and water quantity and operation and maintenance of specially-assigned persons. But combines the main characteristics of the dispersed sewage: (1) the sewage amount is small, the quantity of the sewage varies from several tons to several hundred tons every day, the water quality and the water quantity change is large (2), the possibility of maintenance by a professional is small, the operation and maintenance difficulty is large (3), the excess sludge disposal and the outward transportation cost are high. The existing distributed sewage treatment mode has the following defects: a special person is needed to operate and maintain; excess sludge is produced by a biological method, and the sludge needs to be transported out periodically; the operation cost is higher; the quality of the effluent water is difficult to detect in real time, and the operation parameters can not be adjusted in time according to the water quality condition. These shortcomings result in the inability of some decentralized wastewater treatment facilities to operate stably for long periods of time, even the absence of centralized personnel during shutdown (4), large distribution ranges, large permanent construction investment, and high operating costs.

Disclosure of Invention

The utility model aims to solve the problem that to the shortcoming among the above-mentioned prior art, propose the innovation scheme, provide one kind and be used for distributed domestic sewage to handle, the treatment effect is stable, and the excess sludge volume is little, and the running cost is low, but long-range fortune dimension, regulation and control, the integration equipment that can integrate, large-scale production.

In order to solve the above problem, the utility model discloses a scheme as follows: the integrated equipment is of a box body type main body structure, a water inlet and a water outlet are arranged outside the integrated equipment, the interior of the integrated equipment is divided into 5 areas by a first partition plate, a second partition plate, a third partition plate and a fourth partition plate, and the 5 areas are an anoxic groove, a first aerobic groove, a second aerobic groove, a dephosphorization precipitation groove and an electric control equipment room in sequence; the heights of the first partition plate, the second partition plate and the third partition plate are lower than the total height of the equipment by 250-500 mm, the lower heights of the first partition plate, the second partition plate and the third partition plate are 250-500 mm for erecting internal pipelines, and all pipelines are arranged in the integrated equipment; flow guide holes with the side length of 100-500 mm are formed in the lower portion of the first partition plate, the upper portions of the second partition plate and the third partition plate and are used for communicating the grooves; the height of the fourth clapboard is the total height of the device and is used for separating a water storage area in the integrated device from the electric control device, and a pipeline is perforated and laid at the corresponding position of the fourth clapboard.

A filler bracket is arranged in the anoxic tank and used for hanging biological fillers; a filler bracket is arranged in the anoxic tank and used for hanging biological fillers, and the influent water and the reflux nitrifying liquid enter through a pipeline erected above the anoxic tank to form a stirring state in the anoxic tank so as to cause an anoxic environment; denitrifying bacteria suspended on the biological filler convert nitrate nitrogen into nitrogen; the facultative microorganisms decompose organic nitrogen in the sewage into ammonia nitrogen, and simultaneously, part of organic matters and ammonia nitrogen are utilized to synthesize new cell matters, so that part of COD is degraded.

A filler bracket is arranged in the first aerobic tank and used for hanging biological fillers, and a microporous aeration head is arranged at the bottom of the first aerobic tank; a filler bracket is arranged in the first aerobic tank and used for hanging biological fillers; a microporous aeration head is arranged at the bottom of the first aerobic tank and is used for aerobic aeration; under normal conditions, aeration is started to carry out aerobic reaction, nitrifying bacteria carry out nitration reaction, organic nitrogen is firstly converted into ammonia nitrogen and then oxidized into nitrite nitrogen and nitrate nitrogen, so that subsequent further denitrification is facilitated, and organic substances such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and the like are removed in an aerobic state; when the denitrification effect is not good, the aeration is closed to form an anoxic zone, and the denitrification effect is exerted.

The bottom of the second aerobic tank is provided with inverted V-shaped baffles which are continuously distributed, and is provided with a perforated pipe aeration head, an immobilized microorganism carrier is added into the second aerobic tank, the immobilized microorganism carrier is prepared by embedding composite aerobic bacteria and composite nitrobacteria by high polymer material polyvinyl alcohol and sodium alginate, and the adding amount of the immobilized microorganism carrier accounts for 8-40% of the effective volume of the second aerobic tank; and inverted V-shaped baffles which are continuously distributed are arranged at the bottom of the second aerobic tank, and a perforated pipe aeration mode is adopted. When the immobilized microorganism carrier sinks to the bottom, the immobilized microorganism carrier can fall along the edge of the tank, and when the immobilized microorganism carrier descends to the position of the aeration pipe, the immobilized microorganism carrier rises again under the action of aeration, so that a rising and falling fluidized state is formed, and the immobilized microorganism carrier cannot be deposited to the bottom of a second aerobic tank; an immobilized microorganism carrier is added into the second aerobic tank, the immobilized microorganism carrier is prepared by embedding composite aerobic bacteria and composite nitrobacteria by high polymer materials of polyvinyl alcohol and sodium alginate, and the adding amount of the immobilized microorganism carrier accounts for 8-40% of the effective volume of the second aerobic tank. The nitrifying bacteria, the aerobic bacteria and the microorganisms convert organic nitrogen into ammonia nitrogen, and then the ammonia nitrogen is oxidized into nitrite nitrogen and nitrate nitrogen, so that the subsequent further denitrification is facilitated, and organic substances such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and the like are removed in an aerobic state.

The dephosphorization sedimentation tank comprises a sludge hopper, a dephosphorization filler, a central cylinder, a filler supporting layer, a water collecting tank and an overflow weir; the effluent of the second aerobic tank is guided to the lower part of the dephosphorization sedimentation tank through the central cylinder, so that the sewage flows from bottom to top in the dephosphorization sedimentation tank, suspended matters are settled in a sludge hopper by virtue of gravity, and the effluent SS is reduced; the upper part of a sludge hopper in the dephosphorization precipitation tank is provided with a dephosphorization filler, and the lower part of the dephosphorization filler is provided with a filler supporting layer, so that sewage can only be collected to the water collection tank from an overflow weir after passing through a dephosphorization filler layer; the outlet water of the water collecting tank is connected to an ultraviolet sterilizer positioned in the electric control equipment room through a water outlet pipeline, and is discharged out of the integrated equipment after being subjected to ultraviolet sterilization.

The electric control equipment room is used for controlling water inlet and outlet among the anoxic tank, the first aerobic tank, the second aerobic tank and the dephosphorization sedimentation tank and aeration in each tank, and performing ultraviolet disinfection on the water outlet of the dephosphorization sedimentation tank and performing water quality detection on each tank.

The anoxic tank is used for denitrifying to remove organic nitrogen and degrade COD; the first aerobic tank is normally used for nitration reaction, and denitrification reaction is carried out when the denitrification effect is poor; the second aerobic tank is used for converting organic nitrogen into ammonia nitrogen by nitrifying bacteria, aerobic bacteria and microorganisms, and then oxidizing the ammonia nitrogen into nitrite nitrogen and nitrate nitrogen so as to facilitate subsequent further denitrification and remove COD and BOD in an aerobic state; the dephosphorization sedimentation tank is used for filtering the effluent of the second aerobic tank by using dephosphorization filler after self-sedimentation is carried out to remove SS; the electric control equipment room is used for controlling water inlet and outlet among the anoxic tank, the first aerobic tank, the second aerobic tank and the dephosphorization sedimentation tank, and performing ultraviolet disinfection and water quality detection on the water outlet of the dephosphorization sedimentation tank.

Further, according to the design scheme, the integrated equipment for distributed domestic sewage treatment is characterized in that a box body type main body structure of the integrated equipment is made of stainless steel or anti-corrosion carbon steel plates through welding; a manhole is arranged at the top of the integrated equipment for maintenance, and a double-open sliding door is arranged on the right side surface of the integrated equipment; the first clapboard, the second clapboard, the third clapboard and the fourth clapboard are made of stainless steel or anticorrosive carbon steel materials.

Further, according to the integrated equipment for distributed domestic sewage treatment in the design scheme, an intercepting net is arranged above the inverted V-shaped baffle in the second aerobic tank; the intercepting net is of a detachable structure.

Further, according to the above design scheme, the integrated equipment for distributed domestic sewage treatment is characterized in that a water inlet arranged outside the integrated equipment is positioned at the upper end of the anoxic tank.

Further, according to the above design scheme, the integrated equipment for distributed domestic sewage treatment is characterized in that the filler supports are welded by angle steel, and the distance between the filler supports is 100-150 mm.

Further, according to the design scheme, the integrated equipment for distributed domestic sewage treatment is characterized in that a sludge collecting floral tube is arranged at a position, 100-150 mm away from the bottom of the equipment, below the sludge hopper, of which the tube length is the width of the phosphorus removal settling tank, floral holes with the diameter of phi 10-phi 20 are formed in the sludge collecting floral tube, and because the anoxic tank and the aerobic tank are respectively used for suspension filler and suspension filler, no residual sludge is generated basically, and the collecting tube is used for collecting and refluxing the nitrified liquid.

Furthermore, according to the design scheme, the integrated equipment for distributed domestic sewage treatment is characterized in that the distance between the phosphorus removal filler and the sludge bucket is 0.5-1.0 m; the dephosphorization filler is one or more of calcium salt, iron salt, aluminum salt and magnesium salt or resin with phosphate adsorption function.

Furthermore, according to the design scheme, the integrated equipment for distributed domestic sewage treatment is characterized in that a reflux pump, a fan, an ultraviolet sterilizer, a back-washing dosing tank, a PLC control cabinet, an online water quality detector, pipelines such as a water inlet pipe, a water outlet pipe, an emptying pipe, a return pipe, an aeration main pipe and a back-washing pipe are arranged between the electric control equipment; the bottom of the anoxic tank, the first aerobic tank, the second aerobic tank and the dephosphorization sedimentation tank are provided with emptying pipe orifices which are communicated with the emptying pipe and used for emptying each tank.

The aerobic tank II is provided with an intensive steel wire mesh as an interception mesh of immobilized microorganism carriers at the upper part, and the steel wire mesh can be detached. In the aeration process, the immobilized microorganism carriers are intercepted and limited in the second aerobic tank by the intercepting net. The immobilized microorganism carrier can not block a pipeline along with the outflow of water flow from the tank body, so that the utilization rate of the immobilized microorganism carrier is improved, and when the immobilized microorganism carrier is replaced, only the upper interception net needs to be detached, and the immobilized microorganism carrier is directly poured into the tank.

The dephosphorization sedimentation tank in the technical scheme of the application comprises a sludge hopper, dephosphorization fillers, a central cylinder, a filler supporting layer, a water collecting tank and an overflow weir; the effluent of the second aerobic tank is guided to the lower part of the dephosphorization sedimentation tank through the central cylinder, the sewage flows in the dephosphorization sedimentation tank from bottom to top, and suspended matters are settled in a sludge hopper by virtue of gravity, so that the effluent SS is reduced; the upper part of the sludge hopper of the dephosphorization precipitation tank is provided with a dephosphorization filler, the lower part of the dephosphorization filler is a filler supporting layer, and sewage passes through the dephosphorization filler layer and then is collected to the water collection tank by the overflow weir; the outlet water of the water collecting tank is connected to an ultraviolet sterilizer positioned in the electric control equipment room through a water outlet pipeline, and is discharged out of the integrated equipment after being subjected to ultraviolet sterilization.

According to the technical scheme, the box body type main body structure of the integrated equipment is made of stainless steel or an anti-corrosion carbon steel plate through welding; a manhole is arranged at the top of the integrated equipment for maintenance, and a double-open sliding door is arranged on the right side surface of the integrated equipment; the first partition plate, the second partition plate, the third partition plate and the fourth partition plate are made of stainless steel or anticorrosive carbon steel materials, the height of the first partition plate, the height of the second partition plate and the height of the third partition plate are 250-500 mm lower than the total height of the equipment, the first partition plate, the second partition plate and the height of the third partition plate are used for dividing a water storage area in the integrated equipment into an anoxic tank, an aerobic tank I, an aerobic tank II and a dephosphorization precipitation tank, the lower part of the first partition plate is 250-500 mm used for erecting internal pipelines, and all the pipelines are arranged in the integrated equipment; flow guide holes with the side length of 100-500 mm are formed in the lower portion of the first partition plate, the upper portions of the second partition plate and the third partition plate and are used for communicating the grooves; the height of the fourth clapboard is the total height of the device and is used for separating a water storage area in the integrated device from the electric control device, and a pipeline is perforated and laid at the corresponding position of the fourth clapboard; the electric control equipment room is used for placing a reflux pump, a fan, an ultraviolet sterilizer, a back-washing dosing tank, a PLC control cabinet, an online water quality detector, and pipelines such as a water inlet pipe, a water outlet pipe, an emptying pipe, a reflux pipe, an aeration main pipe, a back-washing pipe and the like. The bottom parts of the anoxic tank, the first aerobic tank, the second aerobic tank and the dephosphorization sedimentation tank are provided with emptying pipe orifices.

The technical scheme of this application is filled support and is welded with the angle steel, fill support interval and be 100~150 mm.

The distance between the phosphorus removal filler and the sludge hopper in the technical scheme is 0.5-1.0 m; the dephosphorization filler is one or more of calcium salt, iron salt, aluminum salt and magnesium salt or resin with phosphate adsorption function.

The utility model provides a sludge bucket below among the technical scheme sets up mud collection floral tube apart from 100~150mm department of equipment bottom, and the tube length is dephosphorization precipitation tank width, opens the floral hole that the diameter is phi 10~ phi 20 on the pipe, because what oxygen deficiency pond and good oxygen pond used is respectively hangs packing and suspension packing, does not basically have the excess sludge to produce, and the collecting pipe mainly used is nitrified liquid and collects, flows back.

The utility model provides a PLC switch board among the technical scheme is equipped with touch screen display, and it includes six control system: a water inlet and outlet quantity and quality system, a fan frequency adjusting system, a reflux ratio adjusting system, a backwashing control system, a liquid level control system and an equipment running state control system; the data signals of the six control systems can be uploaded to a cloud platform and remotely controlled through a mobile phone client or a computer webpage; the water inlet and outlet quantity and water quality control system can transmit the water inlet and outlet quantity through a PLC (programmable logic controller), and transmit COD (chemical oxygen demand), ammonia nitrogen and orthophosphate indexes of inlet water and outlet water according to the data of an online water quality detector; the fan frequency adjusting system automatically adjusts the air quantity of the fan according to the COD and ammonia nitrogen indexes of inlet water; the reflux ratio adjusting system automatically adjusts the reflux amount of the reflux pump according to the ammonia nitrogen index of the inlet water; the back washing control system determines back washing time and frequency according to the quality of the discharged orthophosphate; the liquid level control system and the equipment operation state control system can detect the water level of each tank in the integrated equipment and the operation state of each electric equipment, alarm in time when a fault occurs and upload a signal to a mobile phone client or a computer webpage.

The technical effects of the utility model are as follows.

1. The utility model provides an integration equipment for distributed domestic sewage handles adopts the container body that stainless steel or anticorrosive carbon steel plate welding made to be major structure, and equipment is inside to be separated through stainless steel or anticorrosive carbon steel baffle, and all pipelines are all inside equipment, and the equipment outside only stays a water inlet and a delivery port. The appearance is beautiful, the device can be directly placed on the ground without digging a foundation pit, supporting and draining water and burying the ground, and the civil engineering cost is saved. The exterior of the device can be made into a spray appearance. The container body is taken as a main body structure, and is beneficial to large-scale production.

2. The utility model provides an integration equipment for distributed domestic sewage treatment, sewage loop through oxygen deficiency groove, good oxygen groove, No. two good oxygen grooves, dephosphorization precipitation tank, discharge after ultraviolet disinfection at last. The inlet water and the return nitrification liquid respectively enter from the upper part of the front end of the anoxic tank, a baffle plate connected with the first aerobic tank of the anoxic tank is provided with a diversion hole at the lower end, a baffle plate of the first aerobic tank and the second aerobic tank is provided with a diversion hole at the upper end, the sewage is guided to the lower end of the second aerobic tank by a diversion pipe, and the diversion holes are arranged at the upper ends of the baffle plates of the second aerobic tank and the dephosphorization sedimentation tank. The sewage flows in the integrated equipment at the longest distance, so that the retention time of biochemical reaction is ensured, and the effluent effect is stable.

3. The utility model provides an integration equipment for distributed domestic sewage handles, good oxygen inslot internal weld hangs the filler frame to hang biofilm carrier, the bottom sets up micropore aeration head, and the aeration can select to open or close, and good oxygen groove is regarded as when opening, nitrifies the reaction. When the water quality changes along with seasons, the aeration equipment is closed and used as an anoxic tank to play a role of denitrification, and the removal rate of total nitrogen is ensured under the condition of water quality change.

4. The utility model provides an integration equipment for distributed domestic sewage handles hangs biofilm carrier in the oxygen deficiency inslot, and the liquid gets into through the pipeline of erectting in oxygen deficiency groove top is nitrified in the inflow and backward flow, forms the stirring state at the inslot, causes the oxygen deficiency environment, need not set up agitating unit again, practices thrift the running cost.

5. The utility model provides an integration equipment for distributed domestic sewage handles, the oxygen deficiency groove, good oxygen groove hangs the biofilm carrier, No. two good oxygen grooves are thrown and are thrown the immobilization microorganism carrier that is made by macromolecular material polyvinyl alcohol and the compound good oxygen bacterium of sodium alginate embedding and compound nitrobacteria, good oxygen bacterium and microorganism turn into ammoniacal nitrogen with organic nitrogen, reoxidation becomes nitrous nitrogen and nitrate nitrogen afterwards to do benefit to follow-up further denitrogenation, organic matter such as COD, BOD are got rid of to good oxygen state simultaneously.

6. The utility model provides an integration equipment for distributed domestic sewage handles, dephosphorization precipitation tank include sludge bucket, dephosphorization filler, a central section of thick bamboo, filler bearing layer, water catch bowl, overflow weir. The dephosphorization filler is arranged at a position 0.5-1.0 m above the sludge hopper, and a filler bearing layer is arranged below the filler. The effluent of the second aerobic tank is guided to the lower part of the dephosphorization precipitation tank through the central cylinder, the sewage flows in the dephosphorization precipitation tank from bottom to top, the suspended matters are precipitated in the sludge hopper by virtue of gravity, the phosphorus is adsorbed by the dephosphorization filler, and the backwashing of the dephosphorization filler is completed by controlling a backwashing dosing device by a PLC control system. And the PLC judges whether to start the backwashing dosing device or not according to the data fed back by the effluent quality online detector. And a phosphorus removal device and a precipitation tank are not required to be additionally arranged.

7. The utility model provides an integration equipment for distributed domestic sewage handles, the electrical equipment room with main part reaction tank integration, do not separately establish, be favorable to practicing thrift and take up an area of and pipeline material. The electric control equipment is positioned at the rightmost side of the integrated equipment and can be directly accessed through the double-opening sliding door at the right side of the container. The simple ladder that accesss to the manhole sets up on electrical equipment room lateral wall, and when integrated equipment normal operating, the door of electrical equipment room is locked, prevents that irrelevant personnel from climbing at will, guarantees safety.

8. The utility model provides an integrated device for distributed domestic sewage treatment, wherein a PLC control cabinet displays for a touch screen, and can display the water inlet and outlet quantity and water quality; adjusting the air quantity of the fan according to the COD (chemical oxygen demand) and ammonia nitrogen concentration of inlet water; adjusting the amount of backflow water of the backflow pump according to the concentration of the ammonia nitrogen in the inlet water; determining backwashing time and frequency according to the concentration of orthophosphate in the effluent; and the water level of each groove in the integrated equipment and the running state of each electric equipment are displayed, and the integrated equipment can give an alarm and upload a signal to a mobile phone client or a computer webpage when a fault occurs. All data signals can be uploaded to the cloud platform, and remote control is carried out through a mobile phone client or a computer webpage.

Drawings

Fig. 1 is a front view of an integrated device according to an embodiment of the present invention.

Fig. 2 is a plan view of a pipeline of an integrated device according to an embodiment of the present invention.

Fig. 3 is a sectional view taken along the line a-a in fig. 2 according to the present invention.

Fig. 4 is a sectional view taken along the direction B-B in fig. 2 according to the present invention.

Fig. 5 is a cross-sectional view taken along line C-C of fig. 2 according to the present invention.

Wherein, 1-an anoxic tank, 2-an aerobic tank, 3-a second aerobic tank, 4-a dephosphorization precipitation tank, 5-an electronic control equipment room, 6-a filler bracket, 7-biological filler, 8-V baffle plates, 9-a sludge hopper, 10-dephosphorization filler, 11-a water collecting tank, 12-an anoxic tank diversion hole, 13-a first aerobic tank diversion hole, 14-a nitration liquid return pipe, 15-a water inlet pipe, 16-a second aerobic tank vent pipe, 17-an anoxic tank and a first aerobic tank vent pipe, 18-a dephosphorization precipitation tank collecting pipe, 19-a second aerobic tank aeration pipe, 20-a first aerobic tank aeration pipe, 21-a water outlet pipe, 22-a second aerobic tank, 23-a first aerobic tank and 24-a dephosphorization precipitation tank central cylinder, 25-reflux pump, 26-blower, 27-ultraviolet sterilizer, 28-online water quality detector, 29-backwashing device, 30-electric control equipment room door, 31-total water inlet, 32-total water outlet, 33-PLC control cabinet, 34-carrier interception net.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A integrated equipment for distributed domestic sewage handles, as shown in figure 1, figure 2, including 8mm thick anticorrosive carbon steel container body, long 8.0m, wide 2.5m, high 3.0 m. The container is divided into 5 grooves along the length direction of the container by 4 pieces of anticorrosive carbon steel partition plates with the heights of 2.75m, 2.75m, 2.75m and 3.0m, wherein the 5 grooves are respectively an anoxic groove 1, a first aerobic groove 2, a second aerobic groove 3, a dephosphorization precipitation groove 4 and an electric control equipment room 5.

The lower ends of the partition boards of the anoxic tank 1 and the first aerobic tank 2 are provided with 200 x 200mm12 diversion holes. The upper ends of the partition boards of the first aerobic tank 2 and the second aerobic tank 3 are provided with 200 x 200mm13 diversion holes, and a diversion pipe 23 is arranged for diverting the effluent of the first aerobic tank 2 to the lower end of the second aerobic tank 3. The second aerobic tank 3 is connected with the dephosphorization sedimentation tank 4 through a second aerobic tank water outlet pipe 22. The 4 th partition plate is used for partitioning a water storage area in the integrated equipment and an electric control equipment room 5, and a pipeline is perforated and laid at the corresponding position of the partition plate. An anoxic tank and a first aerobic tank vent pipe 17 are arranged at the position of 150mm at the bottom of the partition board of the first aerobic tank 2 and the second aerobic tank 3, and a second aerobic tank vent pipe 16 is arranged at the position of 150mm at the bottom of the partition board of the second aerobic tank 3 and the dephosphorization sedimentation tank 4.

Two single filler supports 6 with the length of 1.0m, the width of 1.0m and the height of 2.0m are welded in the anoxic tank 1 by angle steel and used for suspending biological fillers 7, and the suspension distance of the biological fillers 7 is 150 mm. The water inlet pipe 15 and the nitrifying liquid return pipe 14 are erected on the partition board of the anoxic tank 1 and the first aerobic tank 2, and the inlet water and the return nitrifying liquid enter the front end of the anoxic tank to form a stirring state in the anoxic tank, so that an anoxic environment is formed. Denitrifying bacteria suspended on the biofilm carrier convert nitrate nitrogen into nitrogen. The facultative microorganisms decompose organic nitrogen in the sewage into ammonia nitrogen, and simultaneously, part of organic matters and ammonia nitrogen are utilized to synthesize new cell matters, so that part of COD is degraded.

The interior of the first aerobic tank 2 is welded into two single filler supports 6 with the length of 1.0m, the width of 1.0m and the height of 2.0m by using angle steel, and the filler supports are used for suspending biological fillers 7, and the suspension distance of the biological fillers 7 is 150 mm. The bottom of the aeration pipe is provided with a first aerobic tank aeration pipe 20, and the aeration pipe is provided with a microporous aeration head for aerobic aeration. Under normal conditions, aeration is started to carry out aerobic reaction, nitrifying bacteria carry out nitration reaction, organic nitrogen is firstly converted into ammonia nitrogen and then oxidized into nitrite nitrogen and nitrate nitrogen, so that subsequent further denitrification is facilitated, and organic substances such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and the like are removed in an aerobic state. When the denitrification effect is not good, the aeration is closed to form an anoxic zone, and the denitrification effect is exerted.

The bottom of the second aerobic tank 3 is provided with an inverted V-shaped baffle 8 and an aeration pipe 19 of the second aerobic tank, which are continuously distributed, and the aeration pipe is provided with a microporous aeration head for aerobic aeration. Microorganism carriers prepared by embedding composite aerobic bacteria and composite nitrobacteria are added into the second aerobic tank according to 30% of the volume of the second aerobic tank, and the immobilized microorganism carriers fall along the tank edge when sinking to the bottom and rise again under the action of aeration when falling to the position of the aeration pipe, so that a rising and falling fluidized state is formed. The carrier interception net 34 intercepts and limits the immobilized carrier in the second aerobic tank, and the immobilized carrier cannot block the pipe along with the water flow flowing out of the tank body. Nitrifying bacteria, aerobic bacteria and microorganisms in the immobilized microorganism carrier convert organic nitrogen into ammonia nitrogen, and then the ammonia nitrogen is oxidized into nitrite nitrogen and nitrate nitrogen, so that subsequent further denitrification is facilitated, and organic substances such as COD (chemical oxygen demand), BOD (biochemical oxygen demand) and the like are removed in an aerobic state.

The dephosphorization sedimentation tank 4 comprises a sludge hopper 9, a dephosphorization filler 10, a central cylinder 24, a filler supporting layer, a water collecting tank 11 and an overflow weir. The effluent of the second aerobic tank 3 is guided to the lower part of the dephosphorization sedimentation tank through the central cylinder 24, the sewage flows from bottom to top in the dephosphorization sedimentation tank 4, and suspended matters are settled in a sludge hopper by virtue of gravity, so that the effluent SS is reduced. A phosphorus removal (preferably phosphorus removal resin) filler 10 is arranged at a position 0.5m above a sludge hopper 9 in the phosphorus removal precipitation tank 4, and a filler bearing layer is arranged below the phosphorus removal filler 10. The sewage is collected to a water collecting tank 11 by an overflow weir after passing through a dephosphorization filler 10 layer. The outlet water of the water collecting tank 11 is connected to the ultraviolet sterilizer 27 positioned on the electric control equipment room 5 through the outlet pipe 21, and is discharged out of the integrated equipment through the main water outlet 32 positioned on the side wall of the electric control equipment room 5 after being sterilized by ultraviolet.

A dephosphorization sedimentation tank collecting pipe 18 is arranged at a position 100mm away from the bottom of the device below a sludge hopper 9, the pipe length is the width of the dephosphorization sedimentation tank 4, a flower hole with the diameter of phi 20 is formed in the pipe, as the anoxic tank 1, the first aerobic tank 2 and the second aerobic tank 3 are respectively used for suspension packing and suspension packing, basically no residual sludge is generated, and the dephosphorization sedimentation tank collecting pipe 18 is mainly used for collecting and refluxing the nitrified liquid.

The electrical control equipment room 5 is located at the rightmost side of the integrated equipment and can be directly accessed through the electrical control equipment room door 30 at the right side of the container. Set up simple and easy cat ladder on 5 lateral walls of electrical equipment room for access to electrical equipment room top manhole, when integrated equipment normal operating, the door of electrical equipment room is locked, prevents that irrelevant personnel from climbing at will.

The electric control equipment room 5 is used for placing pipelines such as a reflux pump 25, a fan 26, an ultraviolet sterilizer 27, a backwashing dosing tank 29, a PLC control cabinet 33, an online water quality detector 28, a water inlet pipe 15, a water outlet pipe 21, a second aerobic tank vent pipe 16, an anoxic tank, a first aerobic tank vent pipe 17, a reflux pipe 14, an aeration main pipe, a backwashing pipe and the like.

The PLC control cabinet 33 is displayed by a touch screen, the water inlet and outlet amount is transmitted through PLC, and COD, ammonia nitrogen and orthophosphate indexes of inlet water and outlet water are transmitted according to the data of the on-line water quality detector 28. And automatically adjusting the air quantity of the fan 26 according to the COD and ammonia nitrogen indexes of the inlet water. According to the ammonia nitrogen index of the inlet water, the reflux quantity of the reflux pump 25 is automatically adjusted. And determining the backwashing time and frequency according to the indexes of the orthophosphate of the effluent. And simultaneously detecting the water level of each groove in the integrated equipment and the running state of each electric equipment. Data signals of six control systems, such as a water inlet and outlet quantity and water quality system, a fan frequency adjusting system, a reflux ratio adjusting system, a backwashing control system, a liquid level control system, an equipment running state control system and the like, are uploaded to a cloud platform and are remotely controlled through a mobile phone client and a computer webpage.

It can be seen from the embodiment that the technical scheme of the utility model adopted container formula integration equipment, its convenient removal is applicable to the rural use that population is less, dispersion nature, and the good oxygen groove of this application can compromise nitration reaction simultaneously for its adaptability is very strong, is applicable to most places in majority china. The utility model provides an integrated equipment for distributed domestic sewage treatment has realized unmanned on duty, can carry out the fortune dimension through mobile client and computer webpage. The removal of ammonia nitrogen, COD, total phosphorus, the arrangement of electrical control equipment room, the arrangement of pipeline concentrate on inside an 8mm thick anticorrosive carbon steel container body, and only a water inlet and a delivery port are stayed to the equipment outside, have realized distributed sewage treatment's integration, and can the large-scale production. The combined use of the suspended filler and the suspended filler reduces the generation of excess sludge. The structure in the tank is flexible and variable, and seasonal changes of distributed sewage quality can be coped with. Adopt the utility model provides a pair of an integrated equipment for distributed domestic sewage handles, it can reach "town sewage treatment plant pollutant emission standard" one-level A emission standard to go out the water.

The present invention is not limited to the specific embodiments and applications described above, which are intended to be illustrative, instructional and not limiting. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope of the invention as defined by the claims.

Claims (7)

1. The utility model provides an integration equipment for distributed domestic sewage handles which characterized in that: the integrated equipment is of a box body type main body structure, a water inlet and a water outlet are arranged outside the integrated equipment, the interior of the integrated equipment is divided into 5 areas by a first partition plate, a second partition plate, a third partition plate and a fourth partition plate, and the 5 areas are an anoxic groove, a first aerobic groove, a second aerobic groove, a dephosphorization precipitation groove and an electric control equipment room in sequence; the heights of the first partition plate, the second partition plate and the third partition plate are lower than the total height of the equipment by 250-500 mm, the lower heights of the first partition plate, the second partition plate and the third partition plate are 250-500 mm for erecting internal pipelines, and all pipelines are arranged in the integrated equipment; flow guide holes with the side length of 100-500 mm are formed in the lower portion of the first partition plate, the upper portions of the second partition plate and the third partition plate and are used for communicating the grooves; the height of the fourth clapboard is the total height of the device and is used for separating a water storage area in the integrated device from the electric control device, and a pipeline is perforated and laid at the corresponding position of the fourth clapboard;

a filler bracket is arranged in the anoxic tank and used for hanging biological fillers;

a filler bracket is arranged in the first aerobic tank and used for hanging biological fillers, and a microporous aeration head is arranged at the bottom of the first aerobic tank;

the bottom of the second aerobic tank is provided with inverted V-shaped baffles which are continuously distributed and perforated pipe aeration heads, an immobilized microorganism carrier is added into the second aerobic tank, the immobilized microorganism carrier is an aerobic and nitrifying microorganism carrier, and the adding amount of the immobilized microorganism carrier accounts for 8-40% of the effective volume of the second aerobic tank;

the dephosphorization sedimentation tank comprises a sludge hopper, a dephosphorization filler, a central cylinder, a filler supporting layer, a water collecting tank and an overflow weir; the effluent of the second aerobic tank is guided to the lower part of the dephosphorization sedimentation tank through the central cylinder, so that the sewage flows from bottom to top in the dephosphorization sedimentation tank, suspended matters are settled in a sludge hopper by virtue of gravity, and the effluent SS is reduced; the upper part of a sludge hopper in the dephosphorization precipitation tank is provided with a dephosphorization filler, and the lower part of the dephosphorization filler is provided with a filler supporting layer, so that sewage can only be collected to the water collection tank from an overflow weir after passing through a dephosphorization filler layer; the outlet water of the water collecting tank is connected to an ultraviolet sterilizer positioned between the electric control devices through a water outlet pipeline, and is discharged out of the integrated device after being subjected to ultraviolet sterilization;

the electric control equipment room is used for controlling water inlet and outlet among the anoxic tank, the first aerobic tank, the second aerobic tank and the dephosphorization sedimentation tank and aeration in each tank, and performing ultraviolet disinfection on the water outlet of the dephosphorization sedimentation tank and performing water quality detection on each tank.

2. The integrated plant for decentralized domestic sewage treatment according to claim 1, characterized in that: the box body type main body structure of the integrated equipment is made of stainless steel or an anti-corrosion carbon steel plate through welding; a manhole is arranged at the top of the integrated equipment for maintenance, and a double-open sliding door is arranged on the right side surface of the integrated equipment; the first clapboard, the second clapboard, the third clapboard and the fourth clapboard are made of stainless steel or anticorrosive carbon steel materials.

3. The integrated plant for decentralized domestic sewage treatment according to claim 1, characterized in that: an interception net is arranged above the inverted V-shaped baffle in the second aerobic tank; the intercepting net is of a detachable structure.

4. The integrated plant for decentralized domestic sewage treatment according to claim 1, characterized in that: and a water inlet arranged outside the integrated equipment is positioned at the upper end of the anoxic tank.

5. The integrated plant for decentralized domestic sewage treatment according to claim 1, characterized in that: the filler support is formed by welding angle steel, and the distance between the filler supports is 100-150 mm.

6. The integrated plant for decentralized domestic sewage treatment according to claim 1, characterized in that: a sludge collecting perforated pipe is arranged at a position 100-150 mm away from the bottom of the equipment below the sludge hopper, the length of the sludge collecting perforated pipe is the width of the dephosphorization sedimentation tank, perforated holes with the diameter of phi 10-phi 20 are formed in the sludge collecting perforated pipe, because the anoxic tank and the aerobic tank are respectively used for hanging fillers and suspending fillers, no excess sludge is generated basically, and the collecting pipe is used for collecting and refluxing the nitrified liquid.

7. The integrated plant for decentralized domestic sewage treatment according to claim 1, characterized in that: the electric control equipment room is used for placing a reflux pump, a fan, an ultraviolet sterilizer, a backwashing dosing tank, a PLC control cabinet, an online water quality detector, and pipelines such as a water inlet pipe, a water outlet pipe, an emptying pipe, a reflux pipe, an aeration main pipe, a backwashing pipe and the like; the bottom of the anoxic tank, the first aerobic tank, the second aerobic tank and the dephosphorization sedimentation tank are provided with emptying pipe orifices which are communicated with the emptying pipe and used for emptying each tank.

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