CN210845872U - Intelligent membrane covering biological deodorization system - Google Patents
Intelligent membrane covering biological deodorization system Download PDFInfo
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- CN210845872U CN210845872U CN201921304761.0U CN201921304761U CN210845872U CN 210845872 U CN210845872 U CN 210845872U CN 201921304761 U CN201921304761 U CN 201921304761U CN 210845872 U CN210845872 U CN 210845872U
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Abstract
The utility model aims at providing an intelligence membrane covers biological deodorization system has solved the problem that exists among the prior art in the foul gas handles. In particular to an intelligent membrane covering biological deodorization system, which comprises: odor monitoring unit, air exhaust control unit, membrane covering biological filtration deodorization unit, intelligent control unit. The utility model discloses unit odor treatment such as deodorization is fit for organic waste processing enterprise, beasts and birds plant, sewage treatment plant, chemical industry enterprise also is fit for using the utility model discloses reform transform current biofiltration device. The intelligent deodorization device has the advantages of being good in intelligent deodorization and deodorization effects, capable of operating all weather, convenient to maintain, energy-saving and the like.
Description
Technical Field
The invention belongs to the technical field of environmental protection and healthy breeding of livestock and poultry, and relates to an intelligent membrane covered biological deodorization system.
Background
The odor means that the odor can stimulate the olfactory organs of people and generally causes unpleasant or aversion to the human body and damages the health of the human body. The malodorous gas mainly comprises livestock and poultry breeding, urban life and industrial production discharge, is generated in various industries such as livestock and poultry breeding, waste treatment, sewage treatment, food and marine product processing, slaughtering, metallurgy, petroleum smelting, pharmacy, chemical industry and the like, and has universality, wherein NH3、H2S and CH3The SH concentration is the main odor component. The malodorous gas pollution is one of seven environmental pollutions in the world, becomes one of the major problems of environmental pollution, can cause the global greenhouse effect, and all countries in the world pay high attention to the control and treatment of the malodorous gas pollution.
China issued 'emission standard of malodorous pollutants' (GB 14554-93) in 1994 for controlling the pollution of malodorous pollutants to atmosphere and protecting and improving environment, and revised in 2018 by organization and organization unit, and solicited opinions from relevant units (office of department of ecological environment, environment-friendly sign letter [2018 ]]No. 69). The revised standard greatly improves the requirement of odor emission, more strictly regulates the emission limit value of odor pollutants and the concentration limit value of perimeter odor pollutants, and the original standard has the highest allowable NH3、H2S and CH3SH discharge rates (15m high exhaust funnel) are respectively 4.90kg/h, 0.33kg/h and 0.04kg/h, while the revised standards are only 0.60kg/h, 0.06kg/h and 0.006 kg/h; original standard NH3、H2S and CH3SH perimeter concentrationThe limit values (first order) are respectively 1.00mg/m3、0.03mg/m3And 0.004 mg/m3And the revised standard is only 0.20mg/m3、0.02mg/m3And 0.002mg/m3。
Malodorous gases cause the body to reflexively suppress inspiration, preventing normal respiratory function; loss of olfaction, which in turn causes dysfunction in the regulation of excitation and inhibition of the cerebral cortex; inappetence, nausea and vomiting can cause the hypofunction of the digestive system and the disorder of the endocrine system, and the metabolic activity of the body is influenced; eyes, nose and throat are irritated and symptoms such as cough, headache, vexation, depression, etc. The malodorous gas can also cause animal stress, greatly influence the growth rate and the feed conversion ratio of livestock and poultry, and reduce the disease resistance of the livestock and poultry. The environmental requirements of livestock and poultry meat producing places (GB/T18407.3-2001) on the safety quality of agricultural products define a site area NH3The concentration is less than or equal to 5mg/m3And the poultry house area is less than or equal to 15mg/m3Livestock house area<25mg/m3(ii) a Field region H2S concentration is less than or equal to 2mg/m3And the poultry house area is less than or equal to 10mg/m3Livestock house area<10mg/m3. An action plan for three years of actual implementation and winning blue-sky guard war is clearly indicated in a '2019 livestock and veterinary work key point' (No. 2019) made by office halls of rural agricultural departments, and an odor emission reduction technology guidance suggestion is printed to guide farmers to reduce ammonia volatilization emission.
At present, the main methods for treating malodorous gases are physical, chemical and biological methods 3. Physical methods do not alter the chemical nature of the malodor, and utilize other substances to mask, dilute, or transfer the malodor substances from the vapor phase to the liquid or solid phase. The chemical method is to use other substances to react with the malodorous substances to change the chemical structure of the malodorous substances into odorless substances or substances with lower odor. In the past, physical and chemical deodorization is mainly adopted for a long time, and 3 modes of acid-base absorption, chemical adsorption and catalytic combustion are mainly adopted. Although effective, the methods have the defects of complex process, large equipment investment, high technical requirement, easy secondary pollution, difficult regeneration, complex post-treatment process, high energy consumption and the like.
The biological deodorization isA new deodorizing technology developed gradually from the last 50 s is to use a deodorizing filter bed to adsorb the odor in the air flow, then further adsorb the odor by the microorganisms growing on the surface of the filler of the deodorizing filter bed, and convert the odor into CO by aerobic metabolic activity2、H2O, cell metabolites and inorganic salts, thereby achieving the purposes of no odor and harmlessness. Compared with the traditional physical and chemical treatment methods, the biological deodorization method has the advantages of simple device, low investment, low energy consumption, quick effect, low operation cost, high deodorization efficiency, capability of avoiding or reducing secondary pollution and the like, is a real green and environment-friendly method, and is gradually becoming a mainstream deodorization technology.
In practical use, the current biological deodorization method still has some defects: (1) the deodorization effect of the open type biological deodorization filter is easily influenced by adverse weather, and rainfall easily causes the blockage of ventilation gaps in the filler of the deodorization filter bed, so that the pressure of the filter bed is increased; in hot days, the moisture in the deodorization filter bed is quickly lost, the odor adsorption capacity is poor, and the deodorization effect is reduced; (2) weeds are easy to grow, a large number of grass seeds are brought into the biological deodorization filter tank along with wind, so that the weeds grow, root systems of the weeds growing on the surface of the biological deodorization filter tank block ventilation gaps, so that the deodorization efficiency is reduced, and therefore, the herbicides need to be regularly sprayed for weeding, but the herbicides have great influence on microorganisms in the filler, so that the deodorization effect is influenced to a certain extent; (3) in the deodorization process, bacteria, fungal spores and bioaerosol in the biological filter are easy to float into the air along with the purified air, which has certain influence on the health of workers and surrounding residents; (4) most of odor generation sites lack a real-time odor monitoring and processing system, and only when workers work, the workers open air exhaust or adopt regular air exhaust to process odor in the sites, so that the odor concentration can not be kept in a reasonable range all the time, and unnecessary power consumption can be caused.
Disclosure of Invention
The invention aims to provide an intelligent membrane covering biological deodorization system, which solves the problems in malodorous gas treatment in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides an intelligent membrane covered biological deodorization system, which comprises: odor monitoring unit, air exhaust control unit, membrane covering biological filtration deodorization unit, intelligent control unit. The invention is suitable for odor treatment in units such as organic waste treatment enterprises, livestock and poultry farms, sewage treatment plants, chemical enterprises and the like, and is also suitable for reforming the existing biological filtering device by applying the invention.
The odor monitoring unit consists of one or more odor detectors (1); the exhaust control unit consists of a fan controller and an exhaust fan (2); the membrane covered biological filtering and deodorizing unit comprises a biological filtering and deodorizing device, a covering membrane supporting framework (3) and a covering membrane; the intelligent control unit consists of an Internet of things host, a processor and an intelligent control program.
The odor monitoring unit consists of one or more odor detectors (1). The odor detector (1) is used for simultaneously monitoring NH3Concentration, H2S concentration and CH3SH explosion-proof and waterproof detector. The odor detector is connected with the Internet of things host of the intelligent control unit. 3 or more than 3 odor detectors are arranged at different positions 1.5 m-2.5 m away from the ground in the same field.
The air exhaust control unit consists of a fan controller and an air exhaust fan (2). The fan controller is connected with the Internet of things host of the intelligent control unit, and the Internet of things host receives odor monitoring data obtained by monitoring the odor monitoring unit in real time and uploads operating parameters such as the opening and closing time of the fan (2) to the intelligent control unit. The fan controller has three control modes of timing, automatic and WeChat remote control, and is provided with a local storage mode, and fan control is not influenced by network disconnection. The air exhaust amount of the air exhaust fan (2) is determined by a treatment site, and the odor in the site is treated within 5-30 min, preferably 15-20 min.
The film covered biological filtering and deodorizing unit comprises an exhaust fan (2), a biological filtering and deodorizing device, a covering film supporting framework (3) and a covering film, wherein the size of the design parameter of a biological filtering tank is designed according to the odor empty bed contact time (ECBT) of 0.75-1.50 min, the height of a filler is 0.8-1.5 m and the exhaust amount of the exhaust fan (2), the biological filtering and deodorizing device is formed by a cement impermeable ground (12), a hollow brick (5), a perforated supporting material (6), a deodorizing filtering bed (7), a deodorizing filtering bed humidity control unit and a side wall (4), the thickness of the cement impermeable ground (12) is more than or equal to 10cm, the minimum design gradient of the ground is 0.003, the lowest end far away from the fan (2) is provided with a blow-off pipe (10) with the diameter of 5 cm-20 cm, the hollow brick (5) is placed on the ground, the hollow brick (5) faces the perforated supporting framework (2), the perforated filtering and the humidifying filtering bed is provided with a perforated filtering bed humidity control unit (7), the filtering bed humidity control unit is formed by a perforated filtering and a draining pipe (10-20 cm) which is installed below the wall, the filtering bed humidity control unit is formed by a perforated filtering bed, a perforated filtering and a draining pipe (7) which is installed by a perforated filtering bed, a draining pipe (10-20 cm-20 mm-7 filtering bed, a draining pipe (7) which is installed in a draining and a draining pipe (7) which is installed in a draining unit, a draining pipe which is installed below the filtering bed, a draining and a draining unit, a draining unit is installed in a draining unit, a draining unit is installed in which is installed in a draining unit.
The odor detector (1) is arranged on a support which is 1m high away from the biological filtering and deodorizing device and is used for monitoring the odor treatment effect in real time. The odor in the odor generation field is compressed by the exhaust fan (2) and enters the lower part of the porous supporting material (6) of the biological filtering and deodorizing device, and sequentially passes through the porous supporting material (6), the filler of the deodorizing filter bed (7) and the covering film from bottom to top, and the odor is adsorbed by the water layer on the surface of the filler when passing through the filler of the deodorizing filter bed (7), and is adsorbed, absorbed and converted into CO by the microorganisms attached to the surface of the filler2、H2O, cell metabolites and inorganic salts, which convert the odor into odorless or less odorous gas to be discharged.
The thing networking host computer support loRa (remote radio)/WIFI/GPRS/3G 4G communication transmission, take place foul smell gas concentration in the place, humidity monitoring and handle back gas data upload to intelligent processing unit in real time with the foul smell, receive intelligent processing unit or believe customer end instruction control air exhaust fan (2), humidification unit (9) a little, upload to high in the clouds simultaneously with data, provide each item information of system for the letter customer end a little by the high in the clouds. The intelligent control unit consists of an Internet of things host, a processing workstation and an intelligent control program. An intelligent deodorization control program and an intelligent humidity control program are installed in the processing workstation. The intelligent deodorization control program is NH3The concentration is higher than 15mg/m3Or H2S concentration higher than 10mg/m3Or CH3SH concentration higher than 0.1mg/m3Starting exhaust air to carry out biological deodorization; when NH is present3The concentration is less than 5mg/m3，H2S concentration is less than 5mg/m3，CH3SH concentration is less than 0.05mg/m3Or NH3Concentration and H2S concentrations are all lower than 5mg/m3Or the fan (2) runs for more than 30min, and the exhaust is closed. The intelligent humidity control program is to open the electromagnetic valve to start humidification when the central humidity of the filter bed (7) is less than 50%; when the central humidity concentration of the filter bed (7) is higher than 60%, the electromagnetic valve is closed to stop humidification. The WeChat client receives various information in the system from the cloud end, and can perform remote monitoring and manual operations such as air exhaust and humidification on the system.
The cover film is composed of an anti-ultraviolet hydrophobic waterproof nylon outer layer fabric, a hydrophobic and oleophobic microporous polymer waterproof breathable microporous film middle layer and an anti-tearing inner layer fabric subjected to acid-base and hydrophilic treatment from outside to inside. The Denier (Denier) value of the nylon fabric at the outer layer is 250D-600D. The inner layer fabric can be made of nylon fabric or TRICOT (TRICOT) warp knitting fabric light inner layer fabric. The cover film has the following characteristics: thickness: 0.30-0.50 mm; gram weight: 200 to 300g/m2(ii) a Ultraviolet resistance: UPF value 50+, T (UVA)AV/% < 5; 200Pa penetrationGas property (m)3/m2The/h) is 6000 to 1000; tear strength (N): 1600-2000 parts; pour-prevention grade: grade 5; water pressure resistance: 8000-10000.
The microporous waterproof and breathable polymer microporous membrane can be made of any polymer material, such as polyethylene, polypropylene, polyurethane, polyvinyl chloride, polyvinylidene chloride, polyester fluorine-containing polyolefin or other polyolefin. Fluoropolymers, such as polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF), Polytetrafluoroethylene (PTFE), and the like, are preferred for their inherent hydrophobicity, excellent processing characteristics, temperature resistance, chemical inertness, resistance to microbial attack, and resistance to ultraviolet aging. Most preferred is a microporous polytetrafluoroethylene membrane. Pore diameter of the microporous membrane: 1 to 9 μm, preferably 2.5 to 7.5. mu.m.
The inner sides of all seam seaming positions of the cover film are sealed by a hot air seam sealing process or soft transparent glue. The periphery of the covering film is covered with PVC anti-aging rain-proof clamping net cloth or other waterproof wear-resistant fabrics, and the width of the covered edge is 0.4-1.0 m. The covering film and the outer side of the edge cover are sewed with nylon or polyester fiber woven belts with the width of 2.5 cm-10 cm and the length of 60 cm-150 cm every 0.5m-1m to form a U-shaped handle.
Specifically, the invention provides an intelligent membrane covering biological deodorization system which comprises: the system comprises an odor monitoring unit, an exhaust control unit, a membrane covering biological filtering and deodorizing unit and an intelligent control unit; the odor monitoring unit consists of one or more odor detectors (1); the exhaust control unit consists of a fan controller and an exhaust fan (2); the membrane covered biological filtering deodorization unit consists of a biological filtering deodorization device, a covering membrane supporting framework (3) and a covering membrane; the biological filtering and deodorizing device comprises an anti-seepage ground (12), hollow bricks (5), a porous supporting material (6), a deodorizing filter bed (7), a deodorizing filter bed humidity control unit and a side wall (4); the cover film consists of an anti-ultraviolet hydrophobic waterproof nylon outer layer fabric, a microporous high-molecular waterproof breathable microporous membrane middle layer with hydrophobic and oleophobic properties and an anti-tearing inner layer fabric subjected to acid-base and hydrophilic treatment from outside to inside; the air exhaust fan (2) is arranged at one end of the anti-seepage ground (12), the hollow brick (5) is placed on the anti-seepage ground (12), and the hole of the hollow brick faces the air exhaust fan (2) and is used for bearing a porous supporting material (6); the deodorizing filter bed (7) is arranged on the porous supporting material (6); the side wall (4) is subjected to seepage-proofing treatment and is higher than the height of the deodorization filter bed; a covering film supporting framework (3) is arranged at the top of the biological filtering and deodorizing device, and a covering film is arranged above the framework; the deodorization filter bed humidity control unit comprises a humidity monitor (8) and a humidification unit (9), wherein the humidity monitor (8) is inserted into the center of the filter bed and used for monitoring the central humidity of the filter bed in real time; the humidifying unit (9) is arranged at the top of the deodorization filter bed (7) and consists of an electromagnetic valve and a drip irrigation belt or micro-spraying; the intelligent control unit consists of an Internet of things host, a processor and an intelligent control program; the deodorization filter bed humidity control unit is connected with the Internet of things host, the Internet of things host collects filter bed center humidity data and uploads the filter bed center humidity data to the processor, and meanwhile, the processor receives instructions to control the humidification unit; odor detector (1) and fan controller link to each other with the thing networking host computer respectively, and thing networking host computer collects odor detector data in real time and uploads to the treater, simultaneously, receives treater instruction control fan (2) of airing exhaust.
According to the biological deodorization system, the exhaust fan (2) is arranged at one end of the cement impermeable ground (12), the impermeable ground (12) is designed to have a certain gradient, the end far away from the exhaust fan (2) is the lowest, and a drain pipe (10) is arranged below the wall body at the end far away from the exhaust fan.
According to the biological deodorization system, the microporous polymer waterproof breathable microporous membrane is made of a polymer material, and the material is selected from polyethylene, polypropylene, polyurethane, polyvinyl chloride, polyvinylidene chloride and polyester fluorine-containing polyolefin; or, the microporous high-molecular waterproof breathable microporous membrane is made of a polymer material selected from polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and Polytetrafluoroethylene (PTFE).
The invention has the beneficial effects that:
1. intelligent deodorization and health protection
The odor concentration is monitored in real time by the odor detector in the odor generation field, the odor threshold range influencing the health of practitioners or livestock and poultry is set in the intelligent control program, the deodorization system is intelligently started, the odor concentration in the field is always kept in reasonable concentration, and the health of the practitioners or livestock and poultry is guaranteed.
2. Good deodorization effect
The upper part of the biological filtering and deodorizing device is covered with a macromolecular waterproof and breathable microporous membrane with the core aperture of 1-9 mu m, which can ensure that gas can freely pass through. The pore size of the micropores is one percent of the smallest water drops, and a large amount of water is intercepted in the inner layer of the membrane. And the inner side of the covering film is condensed with water vapor to form a water film after hydrophilic treatment, and the odor which is not treated by the biological filtering and deodorizing device is absorbed by the water film and then falls into the deodorizing filter bed to be decomposed by microorganisms on the surface of the filler. Can react NH with3And H2The water-soluble odor removal effect of S and the like is improved by more than 10 percent.
3. Can run in all weather, and can save water
The cover film has good rainproof effect, and can be used as an effective physical barrier to prevent the blockage of the filler of the deodorizing filter bed in the biofiltration deodorizing device caused by a large amount of rainfall in rainy season, increase the pressure of the filter bed and reduce the deodorizing effect. In hot summer, the cover film can effectively block the water loss in the biological filtering and deodorizing device, and a large amount of humidifying water for the deodorizing filter bed can be saved.
4. No need of weeding and convenient maintenance
The cover film is light-tight, simultaneously blocks the possibility that grass seeds enter the biological filtering and deodorizing device, no weed exists in the deodorizing filter bed, weeding is not needed, the maintenance cost is greatly reduced, and the adverse effect of the reduction of the deodorizing effect caused by chemical weeding is avoided. When the biological filtration deodorization device is used for daily inspection, only the clamp spring on one side needs to be opened, and the use is convenient.
5. Reducing bacterial, fungal spore and bioaerosol leakage
The cover film fixed above the biofiltration and deodorization device is used as a physical barrier, and the special microporous filtering structure effectively blocks the passing of bacteria, fungal spores and bioaerosol, the filtering effect is more than or equal to 98 percent, and the harm probability to practitioners and surrounding residents is reduced.
6. Real-time control and energy consumption saving
The intelligent film covering deodorization system can realize real-time odor monitoring and treatment, and gets rid of the embarrassment that the prior timed control air exhaust deodorization effect is poor and the energy consumption is high.
7. Data centralized processing, investment saving and remote monitoring
According to the intelligent control system, all odor concentration and humidity sensors, the exhaust fan, the humidification unit and the intelligent control workstation in the field are connected through the Internet of things host, all information processing, exhaust and humidification control in the field can be met only by arranging one intelligent control unit, a PLC (programmable logic controller) is not required to be arranged for each intelligent control unit, a large amount of investment is saved, and meanwhile unified management of all units in the field is achieved. Need not to install APP, it is strong to adopt the little letter customer end suitability, but remote monitoring and control air exhaust and deodorization filter bed humidification.
8. Solution for upgrading and improving existing biological deodorization device
According to the invention, an odor detection unit, an intelligent control unit or an upgrading and modifying scheme such as film covering and the like can be provided for the existing biological deodorization device.
Drawings
FIG. 1: front view of intelligent film covered biological deodorization system
FIG. 2: intelligent film covered biological deodorization system side view
Detailed Description
Examples
Test site: organic fertilizer processing field (N43 degree 35 '55' E125 degree 37 '57') of Rongfeng farmer professional cooperative of Changchun city, double yang region, double ying son county, Yi Ji village, Henhuang city.
The fermentation factory building is 55m × 15m × 6m (L × W × H), and the total volume is 4950m3The induced draft opening is arranged at the top of the factory building, and the power of the air exhaust fan (2) is 5.5kw and the air quantity is 275m3And/min, 3 odor detectors are arranged at the inlets at two sides and the position 1.5m away from the ground in the middle of the plant.
The odor detector (1) is used for simultaneously monitoring NH3Concentration, H2S concentration and CH3SH explosion-proof and water-proof probeAnd (7) measuring the voltage. The odor detector (1) is connected with the Internet of things host of the intelligent control unit. 3 odor detectors are arranged at different positions 1.5-2.5 m away from the ground in the same field.
The film covered biological filtering and deodorizing unit comprises an exhaust fan (2), a biological filtering and deodorizing device, a cover film supporting framework (3) and a cover film, wherein the size of the design parameter of a biological filtering tank is designed according to the odor empty bed contact time (ECBT) of 0.75-1.50 min, the height of a filler is 0.8-1.5 m and the exhaust amount of the exhaust fan (2), the biological filtering and deodorizing device is formed by a cement impermeable ground (12), a hollow brick (5), a perforated supporting material (6), a deodorizing filtering bed (7), a deodorizing filtering bed humidity control unit and a side wall (4), the thickness of the cement impermeable ground (12) is more than or equal to 10cm, the minimum designed gradient of the ground is 0.003, the lowest end far away from the fan (2) is provided with a drain pipe (10) with the diameter of 5 cm-20 cm, the hollow brick (5) is placed on the ground, the hollow brick (5) faces the perforated supporting framework (2), the perforated filtering and the ventilating and deodorizing device is installed below the wall body with the perforated filtering bed humidity control unit, the filtering bed humidity is formed by a perforated filtering and a ventilating and deodorizing device, the ventilating and a ventilating and deodorizing device is installed, the ventilating and a ventilating unit is installed, wherein the ventilating unit is formed by a ventilating unit, the ventilating.
Set odor when in empty bed contactThe space (ECBT) is 1min, and the volume of the deodorizing filter bed (7) is calculated to be 275m3. When the height of the filler is set to 1m, the area of the deodorizing filter bed (7) is 275m2The surface load of the deodorization filter bed (7) is 60m3·m-2·h-1The deodorization filter bed (7) in the biological filtration and deodorization device is a side wall (4) with the size of 25m × m (L × W), the thickness of a cement impermeable ground (12) in the biological filtration and deodorization device is 10cm, the minimum design gradient of the ground is 0.006, one end far away from a fan (2) is the lowest, a blow-off pipe (10) with the diameter of 5cm is installed below a wall body at one end far away from the fan (2), a hollow brick (5) is placed on the cement impermeable ground (12), the hole of the hollow brick (5) faces the fan (2), the fan (2) ventilates a system through an air inlet hole (11), the hollow brick (5) is used for bearing a perforated supporting material (6) and the deodorization filter bed (7), the perforated supporting material (6) is 25mm in thickness, the single-cell size is 50mm × mm glass steel grating, a nylon or plastic mesh cloth with the single-cell size of 10mm is covered on the hollow brick (5) and used for bearing the perforated supporting material (6) and the deodorization filter bed (7), the porous supporting material (6) is 25mm in thickness, the single-cell-size of 50mm × mm, a single-cell-size nylon or plastic mesh cloth with a humidifying mesh cloth with the size of 10mm, the mesh cloth, the mesh.
Odor detector (1), fan (2) controller and deodorization filter bed humidity control unit link to each other with thing networking host computer respectively, and thing networking host computer supports loRa (long distance radio)/WIFI/GPRS/3G 4G communication transmission, and gas data upload to intelligent processing unit after monitoring and handling odor gas concentration, humidity in taking place the place with the foul smell in real time, receive intelligent processing listThe meta or WeChat client side commands control the air exhaust fan (2) and the humidifying unit (9), meanwhile, data are uploaded to the cloud side, and various information of the system is provided for the WeChat client side by the cloud side. The intelligent deodorization control program is NH3The concentration is higher than 15mg/m3Or H2S concentration higher than 10mg/m3Starting exhaust air to carry out biological deodorization; when NH is present3The concentration is less than 5mg/m3，H2S concentration is less than 5mg/m3Or NH3Concentration and H2S concentrations are all lower than 5mg/m3Or the fan (2) runs for more than 30min, and the exhaust is closed. The intelligent humidity control program is to open the electromagnetic valve to start humidification when the central humidity of the filter bed (7) is less than 50%; when the central humidity concentration of the filter bed (7) is higher than 60%, the electromagnetic valve is closed to stop humidification. The WeChat client receives various information in the system from the cloud end, and can perform remote monitoring and manual operations such as air exhaust and humidification on the system.
As can be seen from Table 1, NH was allowed to flow after the membrane was covered on the biological deodorizing filter3And H2The S removal effect is respectively improved by 13.17 percent and 10.27 percent, and the treatment effect of the biological deodorization filtering device on the malodorous gas is effectively improved.
TABLE 1 comparison test results of malodorous gas removal effects before and after film covering
Claims (5)
1. The utility model provides an intelligence membrane covers biological deodorization system which characterized in that: the system comprises an odor monitoring unit, an exhaust control unit, a membrane covering biological filtering and deodorizing unit and an intelligent control unit;
the odor monitoring unit consists of one or more odor detectors (1);
the exhaust control unit consists of a fan controller and an exhaust fan (2);
the membrane covered biological filtering deodorization unit consists of a biological filtering deodorization device, a covering membrane supporting framework (3) and a covering membrane; the biological filtering and deodorizing device comprises an anti-seepage ground (12), hollow bricks (5), a porous supporting material (6), a deodorizing filter bed (7), a deodorizing filter bed humidity control unit and a side wall (4); the cover film consists of an anti-ultraviolet hydrophobic waterproof nylon outer layer fabric, a microporous high-molecular waterproof breathable microporous membrane middle layer with hydrophobic and oleophobic properties and an anti-tearing inner layer fabric subjected to acid-base and hydrophilic treatment from outside to inside;
the air exhaust fan (2) is arranged at one end of the anti-seepage ground (12), the hollow brick (5) is placed on the anti-seepage ground (12), and the hole of the hollow brick faces the air exhaust fan (2) and is used for bearing a porous supporting material (6); the deodorizing filter bed (7) is arranged on the porous supporting material (6); the side wall (4) is subjected to seepage-proofing treatment and is higher than the height of the deodorization filter bed; a covering film supporting framework (3) is arranged at the top of the biological filtering and deodorizing device, and a covering film is arranged above the framework; the deodorization filter bed humidity control unit comprises a humidity monitor (8) and a humidification unit (9), wherein the humidity monitor (8) is inserted into the center of the filter bed and used for monitoring the central humidity of the filter bed in real time; the humidifying unit (9) is arranged at the top of the deodorization filter bed (7) and consists of an electromagnetic valve and a drip irrigation belt or micro-spraying;
the intelligent control unit consists of an Internet of things host, a processor and an intelligent control program; the deodorization filter bed humidity control unit is connected with the Internet of things host, the Internet of things host collects filter bed center humidity data and uploads the filter bed center humidity data to the processor, and meanwhile, the processor receives instructions to control the humidification unit;
odor detector (1) and fan controller link to each other with the thing networking host computer respectively, and thing networking host computer collects odor detector data in real time and uploads to the treater, simultaneously, receives treater instruction control fan (2) of airing exhaust.
2. The biological deodorization system as recited in claim 1, wherein: the odor detector has the function of simultaneously monitoring NH3Concentration, H2S concentration and CH3An explosion-proof and waterproof detector for SH concentration; the odor detector is arranged on the bracket above the biological filtering and deodorizing device and is used for monitoring the odor treatment effect in real time.
3. The biological deodorization system as recited in claim 2, wherein: the air exhaust fan (2) is arranged at one end of the cement impermeable ground (12), the impermeable ground (12) is designed to have a certain gradient, one end far away from the air exhaust fan (2) is the lowest, and a drain pipe (10) is arranged below the wall body at one end far away from the air exhaust fan (2).
4. The biological deodorization system according to any one of claims 1-3, wherein: the microporous high-molecular waterproof breathable microporous membrane is made of polymer materials selected from polyethylene, polypropylene, polyurethane, polyvinyl chloride, polyvinylidene chloride and polyester fluorine-containing polyolefin.
5. The biological deodorization system according to any one of claims 1-3, wherein: the microporous waterproof and breathable polymer microporous membrane is made of a polymer material selected from polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF) and Polytetrafluoroethylene (PTFE).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320255A (en) * | 2021-04-23 | 2021-08-31 | 刘显志 | Polyurethane laminated composite film suitable for organic solid waste compost fermentation |
| CN117067737B (en) * | 2023-08-14 | 2024-02-09 | 青岛中海环境工程有限公司 | Polytetrafluoroethylene composite membrane for compost fermentation and processing technology thereof |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320255A (en) * | 2021-04-23 | 2021-08-31 | 刘显志 | Polyurethane laminated composite film suitable for organic solid waste compost fermentation |
| CN117067737B (en) * | 2023-08-14 | 2024-02-09 | 青岛中海环境工程有限公司 | Polytetrafluoroethylene composite membrane for compost fermentation and processing technology thereof |
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