CN111320339A - Intelligent MBBR and TFF combined sewage treatment device and treatment method - Google Patents

Intelligent MBBR and TFF combined sewage treatment device and treatment method Download PDF

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Publication number
CN111320339A
CN111320339A CN202010303247.6A CN202010303247A CN111320339A CN 111320339 A CN111320339 A CN 111320339A CN 202010303247 A CN202010303247 A CN 202010303247A CN 111320339 A CN111320339 A CN 111320339A
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chamber
sewage
cloud platform
aerobic
filter
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金少锋
来波
李兵
王潇
蔡非
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Zhejiang Dingsheng Environmental Protection Technology Co ltd
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Zhejiang Dingsheng Environmental Protection Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses an intelligent MBBR and TFF combined sewage treatment device, which comprises an intelligent control terminal, a sewage device and a collection device, wherein the sewage device comprises a container box body, a sewage collection pipe network and a regulating tank, the intelligent control terminal comprises an industrial internet of things gateway, a client terminal and a cloud platform, the collection device comprises a water inlet flow meter and a dissolved oxygen sensor, the sewage device is low in cost and simple to install, and can be conveniently popularized and applied in rural areas.

Description

Intelligent MBBR and TFF combined sewage treatment device and treatment method
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to an intelligent MBBR and TFF combined sewage treatment device and a treatment method.
Background
Moving Bed Biofilm process (MBBR), which applies the basic principle of Biofilm process and combines the characteristics of activated sludge process, takes suspended filter material as the carrier for the growth of microorganism, and realizes the high-efficiency treatment of sewage through the sufficient fluidity of the suspended filter material; a Tidal flow biological filter (TFF) technology is characterized in that on the basis of an aeration biological filter, periodical water level ascending and descending changes simulating natural tides are added, so that the filter does not need back flushing.
With the rapid development of the economic and technical level of China, urban sewage plants of China develop rapidly, and the treatment of sewage in villages and towns is relatively laggard, so that a short plate in the national ecological environment protection and ecological civilization construction is formed in a certain sense. The random discharge of the domestic sewage in villages and towns not only destroys the construction of beautiful villages, but also poses serious threats to the health of the residents, and the domestic sewage in the villages is relatively dispersed, so that the centralized treatment like urban sewage is difficult to realize.
Most rural sewage treatment terminals have the defects of high energy consumption, high cost, complex operation, difficulty in reaching the standard stably and the like in the using process.
Disclosure of Invention
The invention aims to provide a technical scheme of an intelligent MBBR and TFF combined sewage treatment device and a treatment method aiming at the defects in the prior art, and combines an MBBR process and an aeration biological filter process with tidal change, compared with the traditional MBBR process, the intelligent MBBR combined sewage treatment device has the characteristics of lower effluent turbidity and better water quality, compared with the traditional aeration biological filter, the intelligent MBBR combined sewage treatment device has the characteristics of low cost, less occupied area, intelligence and high efficiency, and the sewage treatment device is low in cost and simple to install, can be conveniently popularized and applied in rural areas, can analyze real-time data according to the conditions of rural water fluctuation, seasonal change and the like, and is switched to different operation modes, so that more efficient operation and maintenance management is realized.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a sewage treatment plant of intelligent MBBR and TFF allies oneself with usefulness which characterized in that: the sewage treatment system comprises an intelligent control terminal, a sewage device and a collection device, wherein the sewage device comprises a container box body, a sewage collection pipe network and a regulating tank, the sewage collection pipe network is connected into the regulating tank, the interior of the container box body is divided into an anaerobic chamber, an anoxic chamber, an aerobic chamber, a settling chamber, a biological aerated filter and a device room, a water inlet pipe of the anaerobic chamber is connected with the regulating tank, a water inlet pump is arranged on the water inlet pipe, the anaerobic chamber, the anoxic chamber, the aerobic chamber, the settling chamber and the biological aerated filter are sequentially communicated through a pipeline, filter materials are arranged in the anaerobic chamber, the anoxic chamber, the aerobic chamber, the biological aerated filter and the aerobic chamber, activated sludge is arranged in the aerobic chamber, gas distribution systems are arranged in the anoxic chamber, the aerobic chamber and the biological aerated filter, a gas source is provided by a fan in the gas distribution systems, a medicine feeding pipe of the settling chamber is connected with the medicine feeding pump, the intelligent control terminal, cloud platform and gas distribution system, dosing pump and intake pump communication connection, industry thing allies oneself with gateway and collection system communication connection, industry thing allies oneself with the gateway and transmits collection system's data message to the cloud platform, the user inquires the data message that the cloud platform obtained and operates through client terminal, collection system includes into water flowmeter and dissolved oxygen sensor, the flowmeter of intaking is installed on the inlet tube of anaerobic chamber, all be provided with dissolved oxygen sensor in oxygen deficiency room and the good oxygen room.
The container body is made of carbon steel, various patterns can be sprayed on the outer side of the container body, so that the container body is attractive and elegant in appearance and environment-friendly, has high structural rigidity, is convenient to transport and hoist, and can be installed on the ground or buried; the container body is divided according to the reasonable effective volume according to the related design parameters, different sewage treatment units realize different functions, a sewage collecting pipe network laid by taking a natural village as a unit collects rural sewage and uniformly flows into an adjusting tank, the sewage in the adjusting tank firstly enters an anaerobic chamber for anaerobic reaction, anaerobic organisms are attached to a filter material in the anaerobic chamber, organic matter molecules in the sewage entering the anaerobic chamber can be converted into small molecules under the conditions of anaerobic organisms and no molecular oxygen, after the sewage enters the anoxic chamber, because the anoxic chamber performs intermittent aeration, the denitrification rate of the sewage in an anoxic environment is high, after the sewage enters the aerobic chamber, activated sludge in the aerobic chamber takes the filter material as a growth carrier, the efficient treatment of the sewage is realized, the filter material is a suspension type filter material, and the characteristics of approximate specific gravity, large effective specific surface area and easy flowing along with water are realized, under aerobic conditions, air bubbles generated during aeration and oxygenation rise and buoyancy can push filter materials and surrounding water bodies to flow, the filter materials are fully stirred and mixed with water, contact between a biological membrane and oxygen transfer efficiency are increased, activated sludge can absorb phosphorus in sewage to achieve the effects of nitrogen and phosphorus removal, redundant activated sludge can be discharged in a settling chamber through solid-liquid separation, one part of the redundant activated sludge can flow back to an aerobic chamber, purified water on the upper layer of the settling chamber enters an aeration biological filter for advanced treatment, and the quality of outlet water under the low-temperature condition in winter is guaranteed.
The biological aerated filter overcomes the defect that a clean water tank needs to be equipped for backwashing traditionally, can utilize the intermittence of rural domestic sewage, open a backwashing valve in the biological aerated filter when water does not enter at night, evacuate the biological aerated filter, wash the filter material in the biological aerated filter, take away aged biological membranes attached to the surface of the filter material, and realize backwashing on equipment, wherein the backwashing strength is generally controlled to be 8.0-16.0L/(m)2S) for 3 to 10 minutes each.
The air distribution system is provided with an air source by a fan, the device adopts a matrix type fan array, and the fan adopts a maintenance-free mute fan, so that the grading operation can be realized.
The system has the advantages that the system can be operated by workers at the client terminal, the frequency of the workers going to the field is reduced, the operation and maintenance cost is greatly reduced, the device can also automatically adjust according to different operation conditions, intelligent optimization is made, the operation cost is reduced, and the client terminal is terminal equipment for data presentation and execution operation and can be equipment such as a mobile phone, a computer and a tablet personal computer.
The water inflow flowmeter collects the inflow value, the dissolved oxygen sensor can collect the dissolved oxygen content in the aerobic chamber and the anoxic chamber, the industrial Internet of things gateway transmits data information collected by the water inflow flowmeter and the dissolved oxygen sensor to the cloud platform, the cloud platform and the gas distribution system, the dosing pump and the water inflow pump are connected and communicated, a user can inquire information obtained by the cloud platform through a client terminal and perform related operations, more efficient operation and maintenance management is realized, and the system is more efficient to operate.
Furthermore, a grid is arranged at the water inlet end of the regulating tank; the grid sets up the water inlet at the equalizing basin, can filter the solid impurity of big particle diameter.
Furthermore, the filter materials in the anaerobic chamber and the anoxic chamber are provided with combined filter materials, and the combined filter materials at least consist of two filter materials with different diameters; can realize filtering sewage layer by layer and ensure better filtering effect.
Further, a polyurethane filter material is arranged as a filter material in the aeration biological filter tank, a high-density polyethylene filter material is arranged as a filter material in the aerobic chamber, and the high-density polyethylene filter material is suspended in the aerobic chamber; the high-density polyethylene filter material belongs to smaller carrier units, a biological membrane grows on the smaller carrier units, the carrier freely moves along with water in the aerobic chamber, and the carrier can be pushed to move when an air distribution system in the aerobic chamber performs aeration, so that the carrier has small water head loss, is not easy to block and does not need back washing; the polyurethane filter material has good anti-scouring and anti-fouling capabilities and very strong membrane hanging capability.
Further, the air distribution system comprises a main air pipe, air distribution pipes and single-hole membrane aeration heads, wherein one end of each air distribution pipe is fixedly connected with a cross joint arranged on the main air pipe, the air distribution pipes are respectively arranged on two sides of the main air pipe, the other ends of the air distribution pipes are provided with plugs, one end parts of the main air pipes are bent upwards to form air distribution ports, and the single-hole membrane aeration heads are uniformly arranged on the air distribution pipes; the gas distribution system adopts the uniform arrangement of the single-hole membrane aeration heads, the uniformity of gas production is ensured, and the gas diffusion port arranged at the tail end of the main gas pipe further ensures the smoothness of a gas flow channel.
Furthermore, the bottoms of the main air pipe and the gas distribution pipe are both contacted with a supporting piece, the supporting piece is arranged on the bottom wall of the container body, and the gas distribution pipe is fixed on a channel steel fixing piece on the bottom wall of the container body through a binding belt; the gas distribution system is fixed with the container body through the supporting piece and the binding belt, so that the influence of the disturbance of a gas-water mixture on the gas distribution uniformity of the system is prevented.
The treatment method of the intelligent MBBR and TFF combined sewage treatment device is characterized by comprising the following steps:
firstly), laying a sewage collecting pipe network by taking a natural village as a unit to collect sewage into an adjusting tank;
secondly), after filtering large-particle impurities in sewage, the sewage firstly flows into an anaerobic chamber to remove macromolecular organic matters in the sewage, the sewage enters the anaerobic chamber to carry out anaerobic reaction, complex organic matter molecules in the sewage can be converted into small molecules under the action of anaerobic organisms, organic matters in the sewage are purified, then the sewage enters an anoxic chamber to carry out denitrification, the denitrified sewage enters an aerobic chamber, activated sludge in the aerobic chamber absorbs phosphorus in the sewage to achieve the effects of denitrification and dephosphorization, the sewage flowing out of the aerobic chamber enters a settling chamber, and flocculation precipitation is carried out under the action of a coagulant added in the settling chamber;
thirdly), supernatant of the settling chamber enters the biological aerated filter, and advanced treatment is carried out under the action of a biological film on the surface of filter materials in the biological aerated filter, so as to further remove nitrogen and phosphorus and ensure the quality of effluent;
fourthly), the cloud platform adjusts the power utilization operation mode of the system according to the proportional relation between the water inlet flow fed back by the water inlet flowmeter and the designed water amount; for rural areas, the water consumption in summer is higher than that in other seasons, particularly for farmhouse entertainment projects, the water inflow is correspondingly increased, the water consumption in winter is greatly reduced, the cloud platform can switch the system to different operation modes according to water quantity adjustment, and the whole system is in a power-saving mode when the water consumption is low, so that the operation cost can be greatly reduced;
fifthly), the cloud platform controls the starting number of fans at corresponding positions according to the dissolved oxygen concentration in the aerobic chamber and the anoxic chamber fed back by the dissolved oxygen sensor; the cloud platform can perform an optimization algorithm according to the concentration of the dissolved oxygen and the current water quantity parameter, and perform intelligent control;
sixthly), the cloud platform controls the starting time and the adding running time of the adding pump according to the total phosphorus concentration of the effluent of the anoxic chamber and the biological aerated filter; the cloud platform analyzes and calculates the total phosphorus concentration of the effluent of the anoxic chamber and the biological aerated filter, determines that a coagulant needs to be added, automatically calculates the dosage and controls the starting time of a dosing pump for automatic dosing, can dynamically correct the deviation according to the effluent quality feedback, and keeps the normal operation of the system and the stable and standard effluent quality.
Further, in the fourth step), when the water inlet flow meter detects that the water inlet flow is greater than 20% of the design flow, the cloud platform control fan and the water inlet pump are started in an emergency mode, when the water inlet flow meter detects that the water inlet flow is less than 20% of the design flow, the cloud platform control fan and the water inlet pump are started in an energy-saving mode, and when the water inlet flow meter detects that the water inlet flow is 0.8-1.2 times of the design flow, the cloud platform control fan and the water inlet pump are started in a normal mode.
Further, in the fifth step), when the dissolved oxygen sensor detects that the dissolved oxygen content in the anoxic chamber is greater than 0.5mg/L, the cloud platform controls to automatically reduce the number of the fans corresponding to the anoxic chamber, when the dissolved oxygen sensor detects that the dissolved oxygen content in the anoxic chamber is less than 0.2mg/L, the cloud platform controls to automatically increase the number of the fans corresponding to the anoxic chamber, when the dissolved oxygen sensor detects that the dissolved oxygen content in the aerobic chamber is greater than 5mg/L, the cloud platform controls to automatically reduce the number of the fans corresponding to the aerobic chamber, and when the dissolved oxygen sensor detects that the dissolved oxygen content in the aerobic chamber is less than 3mg/L, the cloud platform controls to automatically increase the number of the fans corresponding to the aerobic chamber.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the container body is made of carbon steel, various patterns can be sprayed on the outer side of the container body, so that the container body is attractive and elegant in appearance and is green and environment-friendly, the structural rigidity of the container body is high, the container body is convenient to transport and hoist, and the container body can be installed on the ground and can also be installed in a buried mode; the container body is divided according to the reasonable effective volume according to the relevant design parameters, different sewage treatment units realize different functions, a sewage collecting pipe network laid by taking a natural village as a unit collects rural sewage and uniformly flows into an adjusting tank, the sewage in the adjusting tank firstly enters an anaerobic chamber for anaerobic reaction, anaerobic organisms are attached to a filter material in the anaerobic chamber, and organic matters in the sewage entering the anaerobic chamberThe molecules can be converted into small molecules under the conditions of anaerobic organisms and no molecular oxygen, after the sewage enters the anoxic chamber, because the anoxic chamber carries out intermittent aeration, the denitrification rate of the sewage is high under the anoxic environment, after the sewage enters the aerobic chamber, the activated sludge in the aerobic chamber takes a filter material as a growth carrier, the efficient treatment of the sewage is realized, the filter material is a suspension type filter material, the filter material has the characteristics of large effective specific surface area and easy flowing along with water, under the aerobic condition, the air bubbles generated during aeration and oxygenation can rise and float to push the filter material and the surrounding water body to flow, the filter material is fully stirred and mixed with the water, the contact and oxygen transfer efficiency of a biological membrane and the oxygen is increased, the activated sludge can absorb the phosphorus in the sewage to achieve the effects of nitrogen and phosphorus removal, the redundant activated sludge can be separated and discharged in a settling chamber, and one part can flow back to the aerobic chamber, the purified water on the upper layer of the settling chamber enters the biological aerated filter for advanced treatment, so that the quality of the effluent water is guaranteed under the low-temperature condition in winter. The biological aerated filter overcomes the defect that a clean water tank needs to be equipped for backwashing traditionally, can utilize the intermittence of rural domestic sewage, open a backwashing valve in the biological aerated filter when water does not enter at night, evacuate the biological aerated filter, wash the filter material in the biological aerated filter, take away aged biological membranes attached to the surface of the filter material, and realize backwashing on equipment, wherein the backwashing strength is generally controlled to be 8.0-16.0L/(m)2S) for 3 to 10 minutes each. The air distribution system is provided with an air source by a fan, the device adopts a matrix type fan array, and the fan adopts a maintenance-free mute fan, so that the grading operation can be realized. The staff of this system can operate at customer end, has reduced the frequency that personnel went the scene, greatly reduced fortune dimension cost to this device can also make the adjustment according to the operating condition of difference voluntarily, makes intelligent optimization, reduces the running cost.
The water inflow flowmeter collects the inflow value, the dissolved oxygen sensor can collect the dissolved oxygen content in the aerobic chamber and the anoxic chamber, the industrial Internet of things gateway transmits data information collected by the water inflow flowmeter and the dissolved oxygen sensor to the cloud platform, the cloud platform and the gas distribution system, the dosing pump and the water inflow pump are connected and communicated, a user can inquire information obtained by the cloud platform through a client terminal and perform related operations, more efficient operation and maintenance management is realized, and the system is more efficient to operate.
The invention combines the MBBR technology and the biological aerated filter technology with tidal change, has the characteristics of lower effluent turbidity and better water quality compared with the traditional MBBR technology, has the characteristics of low cost, less occupied area, intelligence and high efficiency compared with the traditional biological aerated filter, has low cost and simple installation of a sewage device, can be conveniently popularized and applied in rural areas, can carry out real-time data analysis according to the conditions of rural water quantity fluctuation, seasonal change and the like by adopting the treatment method, carries out algorithm optimization through a cloud platform so as to send out accurate instructions, and can change various devices to different operation modes so as to realize more efficient operation and maintenance management.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view showing the construction of a sewage apparatus according to the present invention;
FIG. 2 is a schematic structural view of an air distribution system according to the present invention;
fig. 3 is a structural diagram of the linkage relationship of the intelligent control terminal in the invention.
In the figure: 1-a sewage plant; 2-container body; 3-sewage collection pipe network; 4-a regulating tank; 5-an anaerobic chamber; 6-an anoxic chamber; 7-a settling chamber; 8-aeration biological filter; 9-a water inlet pump; 10-gas distribution system; 11-a dosing pump; 12-a client terminal; 13-a cloud platform; 14-an industrial internet of things gateway; 15-four-way; 16-a water inlet flow meter; 17-a dissolved oxygen sensor; 18-a grid; 19-combining filter materials; 20-polyurethane filter material; 21-high density polyethylene filter material; 22-main gas pipe; 23-a gas distribution pipe; 24-single-pore membrane aeration head; 25-air diffuser; 26-plug; 27-a fan; 28-a support; 29-equipment room; 30-water inlet pipe; 31-aerobic chamber.
Detailed Description
As shown in fig. 1 to 3, the intelligent MBBR and TFF combined sewage treatment device comprises an intelligent control terminal, a sewage device 1 and a collection device, wherein the sewage device 1 comprises a container box 2, a sewage collection pipe network 3 and a regulation tank 4, the sewage collection pipe network 3 is connected into the regulation tank 4, the interior of the container box 2 is divided into an anaerobic chamber 5, an anoxic chamber 6, an aerobic chamber 31, a settling chamber 7, a biological aerated filter 8 and an equipment room 29, a water inlet pipe 30 of the anaerobic chamber 5 is connected with the regulation tank 4, a water inlet pump 9 is arranged on the water inlet pipe 30, the anaerobic chamber 5, the anoxic chamber 6, the aerobic chamber 31, the settling chamber 7 and the biological aerated filter 8 are sequentially communicated through pipelines, filter materials are arranged in the anaerobic chamber 5, the anoxic chamber 6, the biological aerated filter 8 and the aerobic chamber 31, activated sludge is arranged in the aerobic chamber 31, and an air distribution system 10 is arranged in the anoxic chamber 6, the biological filter 31 and the biological aerated filter 8, air distribution system 10 is provided the air supply by fan 27, the pencil of adding medicine of drip chamber 7 is connected with dosing pump 11, intelligent control terminal includes industry thing allies oneself with gateway 14, customer terminal 12 and cloud platform 13, cloud platform 13 and air distribution system 10, dosing pump 11 and intake pump 9 communication connection, industry thing allies oneself with gateway 14 and collection system communication connection, industry thing allies oneself with gateway 14 with collection system's data information transmission to cloud platform 13, the user inquires the data information that cloud platform 13 obtained and operates through customer terminal 12, collection system includes water inlet flowmeter 16 and dissolved oxygen sensor 17, water inlet flowmeter 16 installs on the inlet tube 30 of anaerobic chamber 5, all be provided with dissolved oxygen sensor 17 in anoxic chamber 6 and the aerobic chamber 31.
The container body 2 is made of carbon steel, various patterns can be sprayed on the outer side of the container body, so that the container body is attractive and elegant in appearance and environment-friendly, the structural rigidity of the container body 2 is high, transportation and hoisting are convenient, and the container body can be installed on the ground and also can be installed in a buried mode; the container body 2 is divided according to the reasonable effective volume according to the relevant design parameters, different sewage treatment units realize different functions, a sewage collecting pipe network 3 laid by taking a natural village as a unit collects rural sewage and flows into an adjusting tank 4 uniformly, the sewage in the adjusting tank 4 firstly enters an anaerobic chamber 5 for anaerobic reaction, anaerobic organisms are attached to a filter material in the anaerobic chamber 5, organic molecules in the sewage entering the anaerobic chamber 5 can be converted into small molecules under the conditions of anaerobic organisms and no molecular oxygen, after the sewage enters an anoxic chamber 6, because the anoxic chamber 6 carries out intermittent aeration, the denitrification rate of the sewage in an anoxic environment is high, after the sewage enters an aerobic chamber 31, activated sludge in the aerobic chamber 31 is taken as a growth carrier, the efficient treatment of the sewage is realized, the filter material is a suspension type filter material, and has the specific gravity close to that of water, the effective specific surface area is large, The biological filter has the characteristics of easy flowing along with water, under aerobic conditions, air bubbles generated during aeration and oxygenation rise to buoyancy and can push filter materials and surrounding water bodies to flow, the filter materials are fully stirred and mixed with water, the contact and oxygen transfer efficiency of a biological membrane and oxygen is increased, activated sludge can absorb phosphorus in sewage to achieve the effects of nitrogen and phosphorus removal, redundant activated sludge can be discharged in a settling chamber 7 in a solid-liquid separation mode, one part of the redundant activated sludge can flow back to an aerobic chamber 31, purified water on the upper layer of the settling chamber 7 enters an aeration biological filter 8 to be subjected to advanced treatment, and the quality of outlet water is guaranteed under the low-temperature condition in winter.
The biological aerated filter 8 overcomes the defect that a clean water tank needs to be equipped for backwashing traditionally, can utilize the intermittence of rural domestic sewage, open a backwashing valve in the biological aerated filter 8 when water does not enter at night, evacuate the inside of the biological aerated filter, wash the filter material in the biological aerated filter 8, take away aged biological membranes attached to the surface of the filter material, and realize backwashing on equipment, wherein the backwashing strength is generally controlled to be 8.0-16.0L/(m < m >)2S) for 3 to 10 minutes each.
The air distribution system 10 is provided with an air source by a fan 27, the device adopts a matrix fan array, the fan 27 adopts a maintenance-free mute fan, and the graded operation can be realized.
The system has the advantages that the system can be operated by workers at the client terminal 12, the frequency of the workers going to the field is reduced, the operation and maintenance cost is greatly reduced, the device can also automatically make adjustment according to different operation conditions, intelligent optimization is made, the operation cost is reduced, and the client terminal 12 is terminal equipment for data presentation and execution operation and can be equipment such as a mobile phone, a computer and a tablet personal computer.
The water inflow flowmeter 16 collects the inflow flow value, the dissolved oxygen sensor 17 can collect the dissolved oxygen content in the aerobic chamber 31 and the anoxic chamber 6, the industrial Internet of things gateway 14 transmits data information collected by the water inflow flowmeter 16 and the dissolved oxygen sensor 17 to the cloud platform 13, the cloud platform 13 is communicated with the gas distribution system 10, the dosing pump 11 and the water inflow pump 9 in a connecting mode, a user can inquire information obtained by the cloud platform 13 through the client terminal 12 and perform relevant operation, more efficient operation and maintenance management is achieved, and the system can operate more efficiently.
A water inlet end of the adjusting tank 4 is provided with a grating 18; the grid 18 is arranged at the water inlet of the adjusting tank 4 and can filter out solid impurities with large particle size.
The filter materials in the anaerobic chamber 5 and the anoxic chamber 6 are provided with combined filter materials 19, and the combined filter materials 19 at least consist of two filter materials with different diameters; can realize filtering sewage layer by layer and ensure better filtering effect.
The filter material in the biological aerated filter 8 is provided with a polyurethane filter material 20, the filter material in the aerobic chamber 31 is a high-density polyethylene filter material 21, and the high-density polyethylene filter material 21 is suspended in the aerobic chamber 31; the high-density polyethylene filter material 21 belongs to smaller carrier units, a biological membrane grows on the smaller carrier units, the carrier freely moves along with water in the aerobic chamber 31, and the carrier can be pushed to move when the air distribution system 10 in the aerobic chamber 31 carries out aeration, so that the carrier has small water head loss, is not easy to block and does not need back flushing; the polyurethane filter material 20 has good anti-scouring and anti-fouling capabilities, and has very strong membrane hanging capability.
The air distribution system 10 comprises a main air pipe 22, air distribution pipes 23 and single-hole film aeration heads 24, one end of each air distribution pipe 23 is fixedly connected with a four-way joint 15 arranged on the main air pipe 22, the air distribution pipes 23 are respectively arranged on two sides of the main air pipe 22, a plug 26 is arranged at the other end of each air distribution pipe 23, one end of each main air pipe 22 is bent upwards to form an air distribution port 25, and the single-hole film aeration heads 24 are uniformly arranged on the air distribution pipes 23; the gas distribution system 10 adopts the uniform arrangement of the single-hole membrane aeration heads 24, which ensures the uniformity of gas production, and the gas diffusion port 25 arranged at the tail end of the main gas pipe 22 further ensures the smoothness of a gas flow passage.
The bottoms of the main air pipe 22 and the gas distribution pipe 23 are both contacted with a supporting piece 28, the supporting piece 28 is installed on the bottom wall of the container body 2, and the gas distribution pipe 23 is fixed on a channel steel fixing piece on the bottom wall of the container body 2 through a binding belt; the gas distribution system 10 is fixed with the container body 2 through a support 28 and a binding belt, so that the disturbance of gas-water mixture is prevented from influencing the gas distribution uniformity of the system.
The treatment method of the intelligent MBBR and TFF combined sewage treatment device comprises the following steps:
firstly), laying a sewage collecting pipe network 3 by taking a natural village as a unit to collect sewage into an adjusting tank 4;
secondly), after filtering large-particle impurities in sewage, the large-particle impurities in the sewage flow into an anaerobic chamber 5 to remove macromolecular organic matters in the sewage, the sewage enters the anaerobic chamber 5 to carry out anaerobic reaction, complex organic matter molecules in the sewage can be converted into small molecules under the action of anaerobic organisms, organic matters in the sewage are purified, then the sewage enters an anoxic chamber 6 to carry out denitrification, the sewage after denitrification enters an aerobic chamber 31, activated sludge in the aerobic chamber 31 absorbs phosphorus in the sewage to achieve the effects of denitrification and dephosphorization, the sewage flowing out of the aerobic chamber 31 enters a settling chamber 7, and flocculation and precipitation are carried out under the action of a coagulant added in the settling chamber 7;
thirdly), supernatant of the settling chamber 7 enters the biological aerated filter 8, and advanced treatment is carried out under the action of a biological film on the surface of filter materials in the biological aerated filter 8, so as to further remove nitrogen and phosphorus and ensure the quality of effluent;
fourthly) the cloud platform 13 adjusts the power utilization operation mode of the system according to the proportional relation between the water inlet flow fed back by the water inlet flow meter 16 and the designed water amount; for rural areas, the water consumption in summer is higher than that in other seasons, particularly for farmhouse entertainment projects, the water inflow is correspondingly increased, the water consumption in winter is greatly reduced, the cloud platform 13 can switch the system to different operation modes according to water quantity adjustment, and when the water consumption is low, the whole system is in a power-saving mode, so that the operation cost can be greatly reduced;
fifthly), the cloud platform 13 controls the opening number of the fans 27 at the corresponding positions according to the dissolved oxygen concentration in the aerobic chamber 31 and the anoxic chamber 6 fed back by the dissolved oxygen sensor 17; the cloud platform 13 can perform an optimization algorithm according to the concentration of dissolved oxygen and the current water quantity parameter, and perform intelligent control;
sixthly) the cloud platform 13 controls the starting time and the adding running time of the adding pump 11 according to the total phosphorus concentration of the effluent of the anoxic chamber 6 and the biological aerated filter 8; after the cloud platform 13 analyzes and calculates the total phosphorus concentration of the effluent of the anoxic chamber 6 and the biological aerated filter 8, the coagulant is determined to be added, the cloud platform 13 can automatically calculate the dosage and control the starting time of the dosing pump 11 to automatically dose, dynamic deviation correction can be performed according to the effluent quality feedback, and the system can be kept to operate normally and the effluent quality is stable and reaches the standard.
In the fourth step), when the water inlet flow meter 16 detects that the water inlet flow is greater than 20% of the design flow, the cloud platform 13 controls the fan 27 and the water inlet pump 9 to be started in the emergency mode, when the water inlet flow meter 16 detects that the water inlet flow is less than 20% of the design flow, the cloud platform 13 controls the fan 27 and the water inlet pump 9 to be started in the energy-saving mode, and when the water inlet flow meter 16 detects that the water inlet flow is 0.8-1.2 times of the design flow, the cloud platform 13 controls the fan 27 and the water inlet pump 9 to be started in the normal mode.
In the fifth step), when the dissolved oxygen sensor 17 detects that the dissolved oxygen content in the anoxic chamber 6 is greater than 0.5mg/L, the cloud platform 13 controls to automatically reduce the number of the fans 27 corresponding to the anoxic chamber 6, when the dissolved oxygen sensor 17 detects that the dissolved oxygen content in the anoxic chamber 6 is less than 0.2mg/L, the cloud platform 13 controls to automatically increase the number of the fans 27 corresponding to the anoxic chamber 6, when the dissolved oxygen sensor 17 detects that the dissolved oxygen content in the aerobic chamber 31 is greater than 5mg/L, the cloud platform 13 controls to automatically reduce the number of the fans 27 corresponding to the aerobic chamber 31, and when the dissolved oxygen sensor 17 detects that the dissolved oxygen content in the aerobic chamber 31 is less than 3mg/L, the cloud platform 13 controls to automatically increase the number of the fans 27 corresponding to the aerobic chamber 31.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the container body 2 is made of carbon steel, various patterns can be sprayed on the outer side of the container body, so that the container body is attractive and elegant in appearance and is environment-friendly, the structural rigidity of the container body 2 is high, transportation and hoisting are convenient, and the container body can be installed on the ground and can also be installed in a buried mode; the container body 2 has reasonable effective volume according to relevant design parametersDividing, different sewage treatment units realize different functions, a sewage collecting pipe network 3 laid by taking a natural village as a unit collects rural sewage and flows into an adjusting tank 4 uniformly, the sewage in the adjusting tank 4 firstly enters an anaerobic chamber 5 for anaerobic reaction, anaerobic organisms are attached to a filter material in the anaerobic chamber 5, organic matter molecules in the sewage entering the anaerobic chamber 5 can be converted into small molecules under the conditions of anaerobic organisms and no molecular oxygen, after the sewage enters an anoxic chamber 6, because the anoxic chamber carries out intermittent aeration, the denitrification rate of the sewage is high under the anoxic environment, after the sewage enters an aerobic chamber 31, activated sludge in the aerobic chamber 31 takes the filter material as a growth carrier, the efficient treatment of the sewage is realized, the filter material is a suspension type filter material, has the characteristics of specific gravity close to that of water, large effective specific surface area and easy flowing along with the water, and under the aerobic condition, the rising buoyancy of air bubbles generated during aeration can push the filter material and the surrounding water to flow, the filter material is fully stirred and mixed with water, the contact and oxygen transfer efficiency of the biomembrane and oxygen is increased, the activated sludge can absorb phosphorus in the sewage to achieve the effects of nitrogen and phosphorus removal, the redundant activated sludge can be separated and discharged from the solid-liquid separation in the sedimentation chamber 7, one part of the redundant activated sludge can flow back to the aerobic chamber 31, and the purified water on the upper layer of the sedimentation chamber 7 enters the aeration biological filter 8 for advanced treatment, thereby ensuring the quality of the effluent water to be guaranteed under the low-temperature condition in winter. The biological aerated filter 8 overcomes the defect that a clean water tank needs to be equipped for backwashing traditionally, can utilize the intermittence of rural domestic sewage, open a backwashing valve in the biological aerated filter 8 when water does not enter at night, evacuate the inside of the biological aerated filter, wash the filter material in the biological aerated filter 8, take away aged biological membranes attached to the surface of the filter material, and realize backwashing on equipment, wherein the backwashing strength is generally controlled to be 8.0-16.0L/(m < m >)2S) for 3 to 10 minutes each. The air distribution system 10 is provided with an air source by a fan 27, the device adopts a matrix type fan 27 array, the fan 27 adopts a maintenance-free mute fan 27, and the classified operation can be realized. The system can be operated by the staff at the client terminal 12, the frequency of the staff going to the site is reduced, the operation and maintenance cost is greatly reduced, and the device can automatically operate according to different operationsThe working condition is adjusted, intelligent optimization is performed, and the operation cost is reduced.
The invention combines the MBBR technology and the biological aerated filter 8 technology, has the characteristics of lower effluent turbidity and better water quality compared with the traditional MBBR technology, has the characteristics of low cost, less occupied area, intelligence and high efficiency compared with the traditional biological aerated filter 8, has low cost and simple installation of the sewage device 1, can be conveniently popularized and applied in rural areas, can carry out real-time data analysis according to the conditions of rural water quantity fluctuation, seasonal change and the like by adopting the treatment method, carries out algorithm optimization through the cloud platform 13 so as to send out accurate instructions, and puts various devices into different operation modes, thereby realizing more efficient operation and maintenance management.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.

Claims (9)

1. The utility model provides a sewage treatment plant of intelligent MBBR and TFF allies oneself with usefulness which characterized in that: the sewage treatment system comprises an intelligent control terminal, a sewage device and a collecting device, wherein the sewage device comprises a container box body, a sewage collecting pipe network and an adjusting tank, the sewage collecting pipe network is connected into the adjusting tank, the interior of the container box body is divided into an anaerobic chamber, an anoxic chamber, an aerobic chamber, a settling chamber, a biological aerated filter and an equipment room, a water inlet pipe of the anaerobic chamber is connected with the adjusting tank, a water inlet pump is arranged on the water inlet pipe, the anaerobic chamber, the anoxic chamber, the aerobic chamber, the settling chamber and the biological aerated filter are communicated in sequence through pipelines, filter materials are arranged in the anaerobic chamber, the anoxic chamber, the biological aerated filter and the aerobic chamber, activated sludge is arranged in the aerobic chamber, air distribution systems are arranged in the anoxic chamber, the aerobic chamber and the biological aerated filter, and air sources are provided by a fan, the utility model discloses an anaerobic chamber, including the setting chamber, the setting chamber is connected with the dosing pump, the intelligent control terminal includes industry thing allies oneself with gateway, customer terminal and cloud platform, the cloud platform with the gas distribution system add the dosing pump with intake pump communication connection, industry thing allies oneself with the gateway with data information transmission extremely the cloud platform, the user passes through customer terminal inquires the data information that the cloud platform obtained carries out the operation, collection system includes the flowmeter of intaking and dissolves the oxygen sensor, the flowmeter of intaking is installed on the inlet tube of anaerobic chamber, the anoxic chamber with all be provided with in the aerobic chamber dissolve the oxygen sensor.
2. The intelligent MBBR and TFF combined sewage treatment plant according to claim 1, wherein: the water inlet end of the adjusting tank is provided with a grid.
3. The intelligent MBBR and TFF combined sewage treatment plant according to claim 1, wherein: the filter materials in the anaerobic chamber and the anoxic chamber are provided with combined filter materials, and the combined filter materials at least comprise two filter materials with different diameters.
4. The intelligent MBBR and TFF combined sewage treatment plant according to claim 1, wherein: the filter material in the aeration biological filter tank is provided with a polyurethane filter material, the filter material in the aerobic chamber is a high-density polyethylene filter material, and the high-density polyethylene filter material is suspended in the aerobic chamber.
5. The intelligent MBBR and TFF combined sewage treatment plant according to claim 1, wherein: the air distribution system comprises a main air pipe, air distribution pipes and a single-hole film aeration head, one end of each air distribution pipe is fixedly connected with a four-way joint arranged on the main air pipe, the air distribution pipes are arranged on two sides of the main air pipe respectively, plugs are arranged at the other ends of the air distribution pipes, one end of each main air pipe is bent upwards to form an air diffusion port, and the single-hole film aeration head is uniformly arranged on each air distribution pipe.
6. The intelligent MBBR and TFF combined sewage treatment plant according to claim 5, wherein: the bottom of main trachea with the gas distribution pipe all contacts with support piece, support piece installs on the diapire of container box, the tip of gas distribution pipe is fixed through the ribbon on the channel-section steel mounting of container box diapire.
7. The treatment method of the sewage treatment device adopting the intelligent MBBR and TFF combination according to claim 1, which is characterized by comprising the following steps:
laying a sewage collecting pipe network by taking a natural village as a unit to collect sewage into an adjusting tank;
after filtering large-particle impurities in the sewage, the large-particle impurities flow into an anaerobic chamber to remove macromolecular organic matters in the sewage, then the sewage enters an anoxic chamber to be denitrified, the denitrified sewage enters an aerobic chamber, activated sludge in the aerobic chamber absorbs phosphorus in the sewage to achieve the effects of denitrification and dephosphorization, the sewage flowing out of the aerobic chamber enters a settling chamber, and flocculation precipitation is performed under the action of a coagulant added in the settling chamber;
(III) supernatant of the settling chamber enters the biological aerated filter, and is subjected to advanced treatment under the action of a biological film on the surface of a filter material in the biological aerated filter, so as to further remove nitrogen and phosphorus and ensure the quality of effluent;
fourthly, the cloud platform adjusts the power utilization operation mode of the system according to the proportional relation between the water inlet flow fed back by the water inlet flow meter and the designed water amount;
fifthly, the cloud platform controls the opening number of fans at corresponding positions according to the dissolved oxygen concentration in the aerobic chamber and the anoxic chamber fed back by the dissolved oxygen sensor;
and (VI) the cloud platform controls the starting time and the adding running time of the adding pump according to the total phosphorus concentration of the effluent of the anoxic chamber and the biological aerated filter.
8. The treatment method of the intelligent MBBR and TFF combined sewage treatment device according to claim 7, wherein the treatment method comprises the following steps: in the fourth step), when the inflow flowmeter detects that the inflow is greater than 20% of the design flow, the cloud platform controls the fan and the inflow pump to be started in an emergency mode, when the inflow flowmeter detects that the inflow is less than 20% of the design flow, the cloud platform controls the fan and the inflow pump to be started in an energy-saving mode, and when the inflow flowmeter detects that the inflow is 0.8-1.2 times of the design flow, the cloud platform controls the fan and the inflow pump to be started in a normal mode.
9. The treatment method of the intelligent MBBR and TFF combined sewage treatment device according to claim 7, wherein the treatment method comprises the following steps: in the fifth step), when the dissolved oxygen sensor detects that the dissolved oxygen content in the anoxic chamber is greater than 0.5mg/L, the cloud platform controls to automatically reduce the number of the fans corresponding to the anoxic chamber, when the dissolved oxygen sensor detects that the dissolved oxygen content in the anoxic chamber is less than 0.2mg/L, the cloud platform controls to automatically increase the number of the fans corresponding to the anoxic chamber, when the dissolved oxygen sensor detects that the dissolved oxygen content in the aerobic chamber is greater than 5mg/L, the cloud platform controls to automatically reduce the number of the fans corresponding to the aerobic chamber, and when the dissolved oxygen sensor detects that the dissolved oxygen content in the aerobic chamber is less than 3mg/L, the cloud platform controls to automatically increase the number of the fans corresponding to the aerobic chamber.
CN202010303247.6A 2020-04-17 2020-04-17 Intelligent MBBR and TFF combined sewage treatment device and treatment method Pending CN111320339A (en)

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CN202010303247.6A CN111320339A (en) 2020-04-17 2020-04-17 Intelligent MBBR and TFF combined sewage treatment device and treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010303247.6A CN111320339A (en) 2020-04-17 2020-04-17 Intelligent MBBR and TFF combined sewage treatment device and treatment method

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CN111320339A true CN111320339A (en) 2020-06-23

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Country Link
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