CN110639359A - Intelligent membrane covering biological deodorization system - Google Patents

Intelligent membrane covering biological deodorization system Download PDF

Info

Publication number
CN110639359A
CN110639359A CN201910743051.6A CN201910743051A CN110639359A CN 110639359 A CN110639359 A CN 110639359A CN 201910743051 A CN201910743051 A CN 201910743051A CN 110639359 A CN110639359 A CN 110639359A
Authority
CN
China
Prior art keywords
deodorization
biological
filter bed
odor
fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910743051.6A
Other languages
Chinese (zh)
Inventor
路杨
张正坤
李启云
隋丽
温嘉伟
夏蕾
邹晓威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jilin Academy of Agricultural Sciences
Original Assignee
Jilin Academy of Agricultural Sciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jilin Academy of Agricultural Sciences filed Critical Jilin Academy of Agricultural Sciences
Priority to CN201910743051.6A priority Critical patent/CN110639359A/en
Publication of CN110639359A publication Critical patent/CN110639359A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84Biological processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/485Sulfur compounds containing only one sulfur compound other than sulfur oxides or hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/52Hydrogen sulfide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/58Ammonia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/95Specific microorganisms
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention aims to provide an intelligent membrane covering biological deodorization system, which solves the problems in malodorous gas treatment in the prior art. 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 invention is suitable for odor treatment of organic waste treatment enterprises, livestock and poultry farms, sewage treatment plants, chemical enterprises and other units, and is also suitable for applying the invention to reform the existing biological filtering 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

Intelligent membrane covering biological deodorization system
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.
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. 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.
Biological deodorization is a novel deodorization technology gradually developed from the last 50 years, and is characterized in that a deodorization filter bed is used for adsorbing odor in airflow, then the odor is further adsorbed by microorganisms growing on the surface of a filler of the deodorization filter bed, and the odor is converted into CO through 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 membrane covered biological filtering and deodorizing unit comprises an exhaust fan (2), a biological filtering and deodorizing device, a covering membrane supporting framework (3) and a covering membrane. The design parameter size of the biological filter tank is designed according to the odor air bed contact time (ECBT) of 0.75-1.50 min, the filler height of 0.8-1.5 m and the air discharge amount of an air discharge fan (2). The biological filtering and deodorizing device consists of a cement impermeable ground (12), a hollow brick (5), a porous supporting material (6), a deodorizing filter bed (7), a deodorizing filter 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 end far away from the fan (2) is the lowest, and a sewage discharge pipe (10) with the diameter of 5 cm-20 cm is arranged below the wall body at the end far away from the fan (2). The hollow brick (5) is placed on the ground, and the hole of the hollow brick (5) faces the fan (2) and is used for bearing the porous supporting material (6) and the deodorization filter bed (7). The porous supporting material (6) is a glass fiber reinforced plastic grid with the thickness of more than 25mm and the unit cell size of not more than 50mm multiplied by 50mm, and a layer of nylon or plastic mesh cloth with the unit cell size of not more than 10mm multiplied by 10mm is covered on the porous supporting material. The deodorizing filter bed (7) is filled with filler formed by mixing corncobs (the length is less than 10cm) and decomposed compost according to a ratio of 60: 40-80: 20 (w/w). The side wall (4) is generally formed by brick walls with the thickness of 24cm, the inner side of the side wall is subjected to anti-seepage treatment, and the height of the wall body is not lower than the height of the filler in the deodorizing filter bed (7). The top of the biological filtering and deodorizing device is provided with a covering film supporting framework (3), and the framework can be made of glass fiber rods, galvanized steel pipes or other corrosion-resistant materials. The periphery of the side wall (4) of the biological filtering and deodorizing device is provided with a film clamping groove which is 0.3 m-0.5 m away from the top. The covering film is fixed in a film clamping groove around the side wall (4) through a clamping spring. The humidity control unit of the deodorization filter bed (7) consists of a humidity monitor (8), a humidifying unit (9) and an Internet of things host. The humidity monitor (8) is 50cm long, is inserted into the center of the filter bed (7) and is used for monitoring the central humidity of the filter bed (7) in real time; the humidifying unit (9) consists of an electromagnetic valve and drip irrigation belts or micro-sprays distributed on the top of the filter bed (7).
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) and the deodorizing filter bed (7) from bottom to top to be filledThe odor is adsorbed by the water layer on the surface of the filler when passing through the filler of the deodorization 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 nylon fabric or TRICOT warp knitting fabric light inner layer fabric groupAnd (4) obtaining. 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 air permeability (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.
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 is covered withThe inner side of the cover film can condense water vapor to form a water film after hydrophilic treatment, and odor which is not treated by the biological filtering and deodorizing device is absorbed by the water film, falls into the deodorizing filter bed and is 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 waterproof detector. 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 membrane covered biological filtering and deodorizing unit comprises an exhaust fan (2), a biological filtering and deodorizing device, a covering membrane supporting framework (3) and a covering membrane. The design parameter size of the biological filter tank is designed according to the odor air bed contact time (ECBT) of 0.75-1.50 min, the filler height of 0.8-1.5 m and the air discharge amount of an air discharge fan (2). The biological filtering and deodorizing device consists of a cement impermeable ground (12), a hollow brick (5), a porous supporting material (6), a deodorizing filter bed (7), a deodorizing filter 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 end far away from the fan (2) is the lowest, and a sewage discharge pipe (10) with the diameter of 5 cm-20 cm is arranged below the wall body at the end far away from the fan (2). The hollow brick (5) is placed on the ground, and the hole of the hollow brick (5) faces the fan (2) and is used for bearing the porous supporting material (6) and the deodorization filter bed (7). The porous supporting material (6) is a glass fiber reinforced plastic grid with the thickness of more than 25mm and the unit cell size of not more than 50mm multiplied by 50mm, and a layer of nylon or plastic mesh cloth with the unit cell size of not more than 10mm multiplied by 10mm is covered on the porous supporting material. The deodorizing filter bed (7) is filled with filler formed by mixing corncobs (the length is less than 10cm) and decomposed compost according to a ratio of 60: 40-80: 20 (w/w). The side wall (4) is generally formed by brick walls with the thickness of 24cm, the inner side of the side wall is subjected to anti-seepage treatment, and the height of the wall body is not lower than the height of the filler in the deodorizing filter bed (7). The top of the biological filtering and deodorizing device is provided with a covering film supporting framework (3), and the framework can be made of glass fiber rods, galvanized steel pipes or other corrosion-resistant materials. The periphery of the side wall (4) of the biological filtering and deodorizing device is provided with a film clamping groove which is 0.3 m-0.5 m away from the top. The covering film is fixed in a film clamping groove around the side wall (4) through a clamping spring. The deodorization filter bed humidity control unit consists of a humidity monitor (8), a humidifying unit (9) and an Internet of things host. The humidity monitor (8) is 50cm long, is inserted into the center of the filter bed (7) and is used for monitoring the central humidity of the filter bed (7) in real time; the humidifying unit (9) consists of an electromagnetic valve and drip irrigation belts or micro-sprays distributed on the top of the filter bed (7).
The set odor air bed contact time (ECBT) is 1min, and the volume of the deodorization 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-1. The size of the deodorizing filter bed (7) in the biological filtering and deodorizing device is 25m multiplied by 11m (L multiplied by W) side wall (4). The thickness of the cement impermeable ground (12) in the biological filtering and deodorizing device is 10cm, the minimum design gradient of the ground is 0.006, the end far away from the fan (2) is the lowest,and a blow-off pipe (10) with the diameter of 5cm is arranged below the wall body at one end far away from the fan (2). The hollow brick (5) is placed on the cement impermeable ground (12), the hole of the hollow brick (5) faces the fan (2), and the fan (2) ventilates the system through the air inlet hole (11); the hollow brick (5) is used for bearing a porous supporting material (6) and a deodorizing filter bed (7). The porous supporting material (6) is a glass fiber reinforced plastic grid with the thickness of 25mm and the unit grid size of 50mm multiplied by 50mm, and a layer of nylon or plastic mesh cloth with the unit grid size of 10mm multiplied by 10mm is covered on the glass fiber reinforced plastic grid. The deodorizing filter bed (7) is filled with filler formed by mixing corncobs (the length is less than 10cm) and decomposed compost according to a ratio of 60: 40-80: 20 (w/w). The side wall (4) is formed by brick walls with the thickness of 24cm, the inner side of the brick wall is subjected to anti-seepage treatment, and the height of the wall body is 1.2 m. The top of the biological filtering and deodorizing device is provided with a covering film supporting framework (3), and the framework is made of a galvanized steel pipe welded with a film clamping groove. The periphery of the side wall (4) of the biological filtering and deodorizing device is provided with a film clamping groove which is 0.3m away from the top. The covering film is fixed in the film clamping grooves around the framework and the side wall (4) through clamping springs. The humidity control unit of the deodorization filter bed (7) consists of a humidity monitor (8), a humidifying unit (9) and an Internet of things host. The humidity monitor (8) is 50cm long and is inserted into the center of the filter bed (7). The humidifying unit (9) is composed of an electromagnetic valve and micro-sprays distributed on the top of the filter bed (7). The humidity monitor (8), the filter bed (7), the humidifying unit (9), the filter bed (7) and the odor detector (1) are arranged on a bracket which is 1m high away from the biological filtering and deodorizing device.
Odor detector (1), fan (2) controller and deodorization filter bed humidity the control unit link to each other with the thing networking host computer respectively, the thing networking host computer supports loRa (long distance radio)/WIFI/GPRS 3G 4G communication transmission, take place odor gas concentration in the place with the foul smell in real time, humidity monitoring and processing back gas data upload to intelligent processing unit, receive intelligent processing unit or believe the customer end instruction control air exhaust fan (2) a little, humidification unit (9), upload to the high in the clouds simultaneously with data, by the high in the clouds with each item information provision of system for the letter customer end a little. 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 concentration is equalLess 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
Figure RE-GDA0002286544110000071

Claims (9)

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.
2. The biological deodorization system as set forth in claim 1, wherein: 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 intelligent control unit consists of an Internet of things host, a processor and an intelligent control program; wherein, odor detector (1) and fan controller link to each other with 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.
3. The biological deodorization system as recited in any one of claims 1-2, 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.
4. The bioremediation system of any one of the preceding claims, wherein: the membrane covered biological filtering and deodorizing unit comprises an exhaust fan (2), a biological filtering and deodorizing device, a covering membrane supporting framework (3) and a covering membrane.
5. The biological deodorization system as set forth in claim 4, wherein: 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).
6. The biological deodorization system as set forth in claim 4, wherein: 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), the hole of the hollow brick faces the fan, and the hollow brick 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 deodorization filter bed humidity control unit is connected with the Internet of things host, and the Internet of things host collects central humidity data of the filter bed and uploads the central humidity data to the processor, and meanwhile receives the processor instruction to control the humidification unit.
7. The biological deodorization system as set forth in claim 4, wherein: the air exhaust fan 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 fan (2) is the lowest, and a drain pipe (10) is arranged below a wall body at one end far away from the fan.
8. The bioremediation system of any one of the preceding claims, wherein: 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.
9. The biological deodorization system as set forth in claim 8, wherein: the microporous high-molecular waterproof breathable microporous membrane is made of a polymer material, and the material is selected from polyethylene, polypropylene, polyurethane, polyvinyl chloride, polyvinylidene chloride, polyester fluorine-containing polyolefin or other polyolefin; more preferably the material is selected from fluoropolymers, in particular from polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF), Polytetrafluoroethylene (PTFE).
CN201910743051.6A 2019-08-13 2019-08-13 Intelligent membrane covering biological deodorization system Pending CN110639359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910743051.6A CN110639359A (en) 2019-08-13 2019-08-13 Intelligent membrane covering biological deodorization system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910743051.6A CN110639359A (en) 2019-08-13 2019-08-13 Intelligent membrane covering biological deodorization system

Publications (1)

Publication Number Publication Date
CN110639359A true CN110639359A (en) 2020-01-03

Family

ID=69009552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910743051.6A Pending CN110639359A (en) 2019-08-13 2019-08-13 Intelligent membrane covering biological deodorization system

Country Status (1)

Country Link
CN (1) CN110639359A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113318584A (en) * 2021-05-25 2021-08-31 上海城投水务工程项目管理有限公司 Electromagnetic membrane suspension deodorization system for large-span sludge landfill and operation method
CN113443933A (en) * 2020-11-06 2021-09-28 吉林省农业科学院 Intelligent high-temperature aerobic fermentation composting system and method for polymer nano-film
CN117160195A (en) * 2023-09-10 2023-12-05 西安庆安智航通用设备有限公司 Pig farm air treatment system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113443933A (en) * 2020-11-06 2021-09-28 吉林省农业科学院 Intelligent high-temperature aerobic fermentation composting system and method for polymer nano-film
CN113318584A (en) * 2021-05-25 2021-08-31 上海城投水务工程项目管理有限公司 Electromagnetic membrane suspension deodorization system for large-span sludge landfill and operation method
CN113318584B (en) * 2021-05-25 2022-06-14 上海城投水务工程项目管理有限公司 Electromagnetic membrane suspension deodorization system for large-span sludge landfill and operation method
CN117160195A (en) * 2023-09-10 2023-12-05 西安庆安智航通用设备有限公司 Pig farm air treatment system
CN117160195B (en) * 2023-09-10 2024-05-14 西安庆安智航通用设备有限公司 Pig farm air treatment system

Similar Documents

Publication Publication Date Title
CN110639359A (en) Intelligent membrane covering biological deodorization system
CN204429097U (en) A kind of biofilter odor purification system
CN103004573B (en) Ecological integrated decoration unit and use method thereof
CN102986541B (en) Establishing method of a controllable breeding fermentation bed with air cushion layer and fermentation bed
CN210845872U (en) Intelligent membrane covering biological deodorization system
CN106524383A (en) Facility vegetable cleaning production intelligent equipment system
CN109179680A (en) A kind of sewage treatment system using microorganism and algae
KR100729180B1 (en) Gas ventilation device and system for cattle shed with air conditioning and circulation using the same
CN207641262U (en) A kind of pig house deodorization device
CN103004574A (en) Air conditioning ecological section and using method thereof
CN216129515U (en) Intelligent waterproof breathable microporous membrane shed roof tunnel composting device
CN208108353U (en) A kind of skyscraper ventilating system of ecological energy-saving environmental protection
CN103017276B (en) Ecological building energy-saving system and use method thereof
CN109821400A (en) Integrated roof exhaust-gas treatment is plant bed
CN104772034B (en) A kind of intelligent open space air restorative procedure
CN205472957U (en) Biological filter deodorization system
CN214360519U (en) Intelligent farm sewage ecological cycle purification treatment system
CN212068338U (en) Integrated bio-trickling filtration waste gas treatment equipment
CN202700365U (en) Filtering deodorization device used for high-altitude extremely cold area
CN209362224U (en) A kind of biofilter removing foul gas
CN208852692U (en) A kind of vertical integrated biological deodorizing equipment
CN207410955U (en) A kind of multifunction energy-saving greenhouse
CN206526657U (en) Refuse odor processing system
CN100453150C (en) Biological filtering deodorizing device
CN212523666U (en) Open biological filter bed deodorization equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination