CN112499770A - Environment-friendly deodorization device and deodorization method for kitchen wastewater - Google Patents
Environment-friendly deodorization device and deodorization method for kitchen wastewater Download PDFInfo
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- CN112499770A CN112499770A CN202011180775.3A CN202011180775A CN112499770A CN 112499770 A CN112499770 A CN 112499770A CN 202011180775 A CN202011180775 A CN 202011180775A CN 112499770 A CN112499770 A CN 112499770A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/14—Separation 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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses an environment-friendly deodorization device and a deodorization method for kitchen wastewater, and the device comprises a deodorization tank, a microbial agent mixing unit and a tank heating unit; the side surface of the top of the deodorization tank is upwards obliquely provided with a feeding channel communicated with the interior of the deodorization tank, a microbial agent mixing unit is installed on the feeding channel, a mixed microbial agent for degrading starch, protein, grease and cellulose is contained in a microbial agent containing box of the microbial agent mixing unit, and the mixed microbial agent is dried bacillus, citrobacter and lactobacillus; degrading main components in the kitchen wastewater by using a mixed microbial inoculum of bacillus, citrobacter and lactobacillus: starch, protein, grease and cellulose, the mechanical temperature control module can effectively control suitable temperature, and the mixed microbial inoculum can degrade two odors of ammonia gas and hydrogen sulfide at the same time at the suitable temperature, so that the odor can be reduced and degraded.
Description
Technical Field
The invention relates to the technical field of wastewater environment-friendly treatment, in particular to an environment-friendly deodorization device and a deodorization method for kitchen wastewater.
Background
Due to the characteristic of high organic matter content, the kitchen waste water is easy to pollute the environment, the kitchen waste water mainly contains starch, protein, grease and cellulose, the fermentation of the starch, the protein, the grease and the cellulose is the main reason for generating two odors of ammonia gas and hydrogen sulfide, and the prior equipment does not use the genus aiming at degrading the ammonia gas and the hydrogen sulfide, so that the deodorization effect is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an environment-friendly deodorization device and a deodorization method for kitchen wastewater, and uses mixed microbial inoculum of bacillus, citrobacter and lactobacillus to degrade main components in the kitchen wastewater: starch, protein, grease and cellulose, mechanical temperature control module can effective control suitable temperature, impels mixed bacterial agent to degrade two kinds of foul smell of ammonia and hydrogen sulfide simultaneously under suitable temperature, both can reduce the foul smell and produce also can degrade the foul smell, can effectively solve the problem in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the environment-friendly kitchen wastewater deodorization device comprises a deodorization tank, a microbial agent mixing unit and a tank body heating unit;
a deodorization tank: the deodorization tank is characterized in that a feeding channel communicated with the interior of the deodorization tank is obliquely arranged on the side face of the top of the deodorization tank upwards, a microbial agent mixing unit is installed on the feeding channel, a mixed microbial agent used for degrading starch, protein, grease and cellulose is contained in a microbial agent containing box of the microbial agent mixing unit, the mixed microbial agent is dried bacillus, citrobacter and lactobacillus, the bottom of the feeding channel is connected with the side face of the bottom of the deodorization tank through a support rod, the bottom of the deodorization tank is supported by a support frame, the support frame is fixed on a bottom plate through support legs, a discharging pipe is arranged at the bottom of the deodorization tank, and a discharging valve is arranged on the discharging pipe;
a tank body heating unit: the tank body heating unit comprises a mechanical temperature control module, a heating rod, a triangular heat conducting plate, a heat preservation layer, a heat dissipation plate and heat dissipation fins, wherein the heat dissipation plate is arc-shaped and is embedded in the inner side of the bottom of the deodorization tank, the heat dissipation fins for dissipating heat of kitchen wastewater are arranged on the inner side of the heat dissipation plate, the long edge of the triangular heat conducting plate is vertically connected to the outer side of the heat dissipation plate at equal intervals, one end, away from the heat dissipation plate, of the triangular heat conducting plate penetrates through a through groove in the side face of the bottom of the deodorization tank and extends to the outer side of the deodorization tank, the heating rod is installed at one end, located on the outer side of the lower tank body;
wherein: the feeding device is characterized by further comprising a sealing plate, the sealing plate is connected in the sliding groove in the top of the feeding channel in a sliding mode from top to bottom, a blind groove matched and sealed with the bottom of the sealing plate is formed in the bottom of the inner side of the feeding channel, and a limiting rod is arranged at the top of the sealing plate.
Bacillus, the mixed microbial inoculum of Citrobacter and Lactobacillus is used for decomposing starch, protein, grease and cellulose, and also can degrade two kinds of foul smell of ammonia and hydrogen sulfide, produce heat energy through the heating rod, then conduct the heat to the heating panel that is located deodorization jar inboard through triangle heat-conducting plate, the kitchen waste water that is rich in starch, protein, grease and cellulose in the deodorization jar is conducted to heat energy through radiating fin finally, thereby be in comfortable temperature to the mixed microbial inoculum in the deodorization jar, guarantee the decomposition effect of microbial inoculum, improve decomposition treatment efficiency, with higher speed the deodorization process, make the heating temperature be in an within range through mechanical temperature control module.
Further, the mechanical temperature control module comprises an insulating slide bar, a U-shaped mounting groove plate, a telescopic rod, a spring, a movable conductive head, a fixed conductive head, a movable rod, a C-shaped elastic sheet and a fixed block, wherein the insulating slide bar is slidably connected in a middle sliding groove of the U-shaped mounting groove plate, two sides of the insulating slide bar are respectively and movably connected with one end of the telescopic rod, the other ends of the two telescopic rods are respectively and movably connected with two sides of the U-shaped mounting groove plate, the spring is sleeved on the telescopic rod, one end of the C-shaped elastic sheet fixed by the fixed block is in contact with the outer side of the heat dissipation plate at the back of the arc-shaped part of the C-shaped elastic sheet, the other end of the C-shaped elastic sheet is movably connected with the end part of the insulating slide bar through the movable rod, the movable conductive head is fixed on the side surface of the, the fixed conductive head is connected with the heating rod through a wire, when the heating rod starts to work, the insulating slide rod is extruded to one side close to the C-shaped elastic piece by the springs at the two sides of the insulating slide rod, the movable conductive head is electrically contacted with the fixed conductive head, the heating rod is conducted with an external power supply through the wire, the heating rod works normally, the back of the C-shaped elastic piece is contacted with the outer side of the heat dissipation plate, the C-shaped elastic piece deforms due to temperature formation in the heating process of the heat dissipation plate, the C-shaped elastic piece pushes the insulating slide rod away through the movable rod when reaching a certain temperature, finally, the movable conductive head at the side of the insulating slide rod is separated from the fixed conductive head, so that the external power supply stops supplying electric energy to the heating rod, the heating rod stops working, the temperature of the heat dissipation plate is reduced, the deformation of the inner temperature of the C-shaped elastic, at the moment, the heating rod continues to work and heat, so that the temperature in the deodorization tank is kept in a constant interval, and the mixed microbial inoculum is ensured to degrade two odors of ammonia gas and hydrogen sulfide at the same time at a proper temperature.
Further, still include the unit of loosing gas, the unit of loosing gas is located the inboard bottom of deodorization jar, and the one end of the ring union coupling intake pipe of the unit of loosing gas, the other end of intake pipe passes the bottom lateral wall of deodorization jar and is connected with the air pump gas outlet of fixing on the bottom plate, the input of air pump is connected with external power source's output through fixing the control switch on the bottom plate, the check valve has concatenated in the intake pipe, the unit of loosing gas includes ring pipe, air diffuser and the solid fixed ring in center, the inboard isoangle of ring pipe and the one end intercommunication of air diffuser, the other end isoangle of air diffuser is fixed in the solid fixed ring's in center outside, and the equidistance on the air diffuser has seted up the venthole.
When the air pumping is not needed, in order to prevent the water in the kitchen waste water from flowing out through the air outlet hole, the air dispersing pipe, the annular pipe and the air inlet pipe in sequence, the one-way valve is arranged to only allow the external air to enter the deodorizing tank, but not allow the water in the deodorizing tank to flow out.
The bottom of the lower tank body is generally of a conical structure for conveniently discharging, decomposing and deodorizing kitchen waste water, the air diffusing unit can be set to be in a conical structure matched with the bottom of the inner side of the lower tank body, the annular pipe enables pumped air to be dispersed and enter the air diffusing pipe, then the air diffusing pipe enters the kitchen waste water in the deodorizing tank through the air outlet hole and contacts with a microbial inoculum, and the central fixing ring is used for improving the stability of the air diffusing pipe.
Further, still include discharge valve, blast pipe, trade liquid post and ammonia absorption tank, the top gas outlet of deodorization jar is passed through discharge valve and is connected with the one end of blast pipe, the other end of blast pipe extends to the inboard bottom of ammonia absorption tank, the ammonia absorption tank is placed and is equipped with the liquid post of trading at bottom plate and top, trade the top threaded connection of liquid post and trade the material lid. When the air pump is pumped into the air in the deodorization tank, overflowed gas enters the ammonia absorption tank through the exhaust pipe, and the odor is mainly ammonia, so that the overflowed odor is absorbed by absorption liquid in the ammonia absorption tank, and the inner absorption liquid of the ammonia absorption tank can be conveniently replaced through the liquid exchange column and the material exchange cover.
Further, still include annular aeration pipe, annular aeration pipe sets up inside the ammonia absorption jar and is located below the inside absorption liquid level of ammonia absorption jar, annular aeration pipe and exhaust pipe tip intercommunication, and be equipped with the aeration mouth on the annular aeration pipe. The odor can be fully dispersed and released into the absorption liquid through the annular aeration pipe and the aeration port, so that the absorption liquid can fully absorb the main components in the odor: ammonia gas and hydrogen sulfide.
Further, still include connecting pipe, gas filtration jar, screw cap, delivery pipe and gas filtration unit, the bottom intercommunication of connecting pipe and gas filtration jar is passed through at the top of ammonia absorption jar, the inside of ammonia absorption jar is provided with gas filtration unit, the open-top threaded connection of gas filtration jar has the screw cap, and the top of screw cap is equipped with the delivery pipe. The odor passing through the ammonia gas absorption tank can be absorbed by the absorption liquid and then can be absorbed by other odor gases, and the odor gases are removed by secondary absorption through the gas filtering unit.
Further, the gas filtering unit includes closing plate, tube-shape activated carbon board and spacing solid fixed ring, and the bottom of the inboard bottom of ammonia absorption jar through spacing solid fixed ring fixed mounting tube-shape activated carbon board, and the top of tube-shape activated carbon board seals through the closing plate, the connecting pipe extends to the inboard of tube-shape activated carbon board. The active carbon plate of the gas filtering unit is arranged in a cylindrical shape, so that the contact area between the cylindrical active carbon plate and air to be filtered is enlarged, and the passing efficiency of the air to be filtered can be improved.
Further, the gas filtering unit comprises an activated carbon filter plate and a fixing frame, the diameter of the activated carbon filter plate is equal to the inner diameter of the ammonia absorption tank, and the activated carbon filter plate is not less than two and is fixed on the inner wall of the ammonia absorption tank through the fixing frame. The gas filtering unit filters the air to be exhausted through the plurality of layers of activated carbon filtering plates, the filtering effect is good, but correspondingly, the passing efficiency of the air to be filtered is slightly reduced.
Further, the microbial agent mixing unit comprises a belt pulley, a belt, a cylindrical shell, a microbial agent containing box, a box cover, a rotating shaft, blades, a rolling shaft and a leakage groove, the inner side of the feeding channel is rotatably connected with a rotating shaft, the side surface of the rotating shaft is provided with blades at equal angles, the end part of the rotating shaft penetrates through the side wall of the feeding channel and is connected with a belt pulley, the upper side of the feeding channel is provided with a cylindrical shell, a microbial agent containing box is arranged on the upper side of the cylindrical shell, a box cover is buckled at the top opening of the microbial agent containing box, the feeding channel is communicated with the interior of the microbial agent containing box through a cylindrical shell, the interior of the cylindrical shell is rotatably connected with a rolling shaft, the side of the roller is provided with a leakage groove at equal angles, one end shaft of the roller penetrates through the side wall of the cylindrical shell and is connected with another belt pulley, and the two belt pulleys are connected through a belt in a transmission manner.
Pour into kitchen waste water from feedstock channel, inside kitchen waste water flows into the deodorization jar from the feedstock channel of tilt up, the in-process that kitchen waste water flows drives the pivot through the blade and rotates, the belt pulley of pivot tip passes through the belt and drives the roller bearing and rotate, hold dry microbial inoculum in the microbial inoculum holds the case, the microbial inoculum falls into the small opening of upside because gravity in, when the roller bearing rotates, fall into the feedstock channel when the small opening that holds dry microbial inoculum completely down and mix with the kitchen waste water of flowing through, can make microbial inoculum and kitchen waste water mix fully, need not mix with the help of electric power agitating unit stirring, the microbial inoculum breeds and can decompose kitchen waste water and become useful fertilizer, and reduce the output of foul smell, kitchen waste water pours into in the deodorization jar completely.
The deodorization method of the environment-friendly deodorization device for kitchen wastewater comprises the following steps;
s1: the kitchen waste water is poured into the deodorizing tank from the feeding channel, the kitchen waste water flows into the deodorizing tank from the feeding channel which inclines upwards, the rotating shaft is driven to rotate by blades in the flowing process of the kitchen waste water, the belt pulley at the end part of the rotating shaft drives the rolling shaft to rotate by a belt, a dry microbial inoculum is contained in the microbial inoculum containing box, the microbial inoculum falls into the leakage groove at the upper side due to gravity, and when the rolling shaft rotates, the leakage groove containing the dry microbial inoculum falls into the feeding channel when the leakage groove completely faces downwards to be mixed with the flowing kitchen waste water;
s2: completely pouring the kitchen wastewater into a deodorization tank, pressing down a limiting rod to enable the bottom of a sealing plate to be inserted into a blind groove to seal a feeding channel, controlling a switch to control an air pump to work, pumping air into an air dissipation unit through an air inlet pipe by the air pump, dispersing the air into the deodorization tank by an annular pipe of the air dissipation unit, and then contacting with a microbial inoculum in the kitchen wastewater in the air rising process;
s3: the heating rod generates heat energy, the heat energy is conducted to the heat dissipation plate positioned on the inner side of the deodorization tank through the triangular heat conduction plate, and finally the heat energy is conducted to the kitchen waste water rich in starch, protein, grease and cellulose in the deodorization tank through the heat dissipation fins, so that the mixed microbial inoculum in the deodorization tank is at a comfortable temperature, the decomposition effect of the microbial inoculum is ensured, the decomposition treatment efficiency is improved, the deodorization process is accelerated, and the heating temperature is in a range through the mechanical temperature control module;
s4: when the air pump pumps air into the deodorization tank, overflowed gas enters the ammonia absorption tank through the exhaust pipe, and the odor is mainly ammonia, so that the overflowed odor is absorbed by absorption liquid in the ammonia absorption tank, and the inner absorption liquid of the ammonia absorption tank can be conveniently replaced through the liquid exchange column and the material exchange cover;
s5: the odor passing through the ammonia gas absorption tank can be absorbed by the absorption liquid and then can be absorbed by other odor gases, and the odor gases are removed by secondary absorption through the gas filtering unit.
Compared with the prior art, the invention has the beneficial effects that: the environment-friendly kitchen wastewater deodorization device and the deodorization method have the following advantages:
1. when the heating rod starts to work, the springs on two sides of the insulating slide rod extrude the insulating slide rod to one side close to the C-shaped elastic sheet, the movable conductive head is electrically contacted with the fixed conductive head, the heating rod is conducted with an external power supply through a lead, the heating rod works normally, the back of the C-shaped elastic sheet is contacted with the outer side of the heating panel, the C-shaped elastic sheet deforms due to temperature formation in the heating process of the heating panel, the C-shaped elastic sheet pushes the insulating slide rod away through the movable rod when reaching a certain temperature, finally, the movable conductive head on the side surface of the insulating slide rod is separated from the fixed conductive head, so that the external power supply stops supplying electric energy to the heating rod, the heating rod stops working, the temperature of the heating panel is reduced, the internal temperature of the C-shaped elastic sheet is reduced and deformed and recovered, the C-shaped elastic sheet pulls back the insulating slide, thereby keeping the temperature in the deodorization tank in a constant interval and ensuring that the mixed microbial inoculum degrades two odors of ammonia gas and hydrogen sulfide at the same time at a proper temperature;
2. degrading main components in the kitchen wastewater by using a mixed microbial inoculum of bacillus, citrobacter and lactobacillus: starch, protein, grease and cellulose, the mechanical temperature control module can effectively control suitable temperature, and the mixed microbial inoculum can degrade two odors of ammonia gas and hydrogen sulfide at the same time at the suitable temperature, so that the odor can be reduced and degraded.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the roller and the drain groove structure of the present invention;
FIG. 4 is a schematic structural view of a tank heating unit according to the present invention;
FIG. 5 is a schematic structural diagram of a mechanical temperature control module according to the present invention;
FIG. 6 is a schematic cross-sectional view of a gas filter unit according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a gas filter unit according to an embodiment of the present invention.
In the figure: 1 deodorization tank, 2 feed channel, 3 microorganism bacterium agent mixing unit, 31 belt pulley, 32 belt, 33 cylinder shell, 34 microorganism bacterium agent containing box, 35 box cover, 36 rotating shaft, 37 blade, 38 roller, 39 leak groove, 4 closing plate, 41 spacing rod, 5 support frame, 6 discharge valve, 7 discharge pipe, 8 control switch, 9 one-way valve, 10 air inlet pipe, 11 air pump, 12 exhaust valve, 13 exhaust pipe, 14 support rod, 15 liquid changing column, 151 material changing cover, 16 ammonia gas absorption tank, 17 connecting pipe, 18 gas filtering tank, 19 screw cap, 20 discharge pipe, 21 bottom plate, 22 gas dispersing unit, 221 ring pipe, 222 gas dispersing pipe, 223 center fixing ring, 23 support leg, 24 gas filtering unit, 2411 closing plate, 2412 cylinder active carbon plate, 2413 limit fixing ring, 2421 active carbon filter plate, 2422 fixing frame, 25 ring aeration pipe, 26 tank body heating unit, 261 mechanical temperature control module, 2611 insulating slide bar, 2612U type mounting groove board, 2613 telescopic link, 2614 spring, 2615 activity conducting head, 2616 fixed conducting head, 2617 movable rod, 2618C shape shell fragment, 2619 fixed block, 262 heating rod, 263 triangle heat-conducting plate, 264 heat preservation, 265 heating panel, 266 radiating fin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1, 2 and 4, the environment-friendly deodorization device for kitchen wastewater comprises a deodorization tank 1, a microbial agent mixing unit 3 and a tank heating unit 26;
deodorization tank 1: the side surface of the top of the deodorization tank 1 is upwards obliquely provided with a feeding channel 2 communicated with the interior of the deodorization tank, a microbial agent mixing unit 3 is installed on the feeding channel 2, a mixed microbial agent used for degrading starch, protein, grease and cellulose is contained in a microbial agent containing box 34 of the microbial agent mixing unit 3, the mixed microbial agent is dried bacillus, citrobacter and lactobacillus, the bottom of the feeding channel 2 is connected with the side surface of the bottom of the deodorization tank 1 through a support rod 14, the bottom of the deodorization tank 1 is supported through a support frame 5, the support frame 5 is fixed on a bottom plate 21 through support legs 23, a discharge pipe 7 is arranged at the bottom of the deodorization tank 1, and a discharge valve 6 is arranged on the discharge pipe 7;
can body heating unit 26: the tank body heating unit 26 comprises a mechanical temperature control module 261, a heating rod 262, a triangular heat conduction plate 263, an insulating layer 264, a heat dissipation plate 265 and heat dissipation fins 266, wherein the heat dissipation plate 265 is arc-shaped and is embedded in the inner side of the bottom of the deodorization tank 1, the heat dissipation fins 266 for dissipating heat to kitchen waste water are arranged on the inner side of the heat dissipation plate 265, the outer side of the heat dissipation plate 265 is vertically connected with the long edges of the triangular heat conduction plate 263 at equal intervals, one end, far away from the heat dissipation plate 265, of the triangular heat conduction plate 263 penetrates through a through groove in the side surface of the bottom of the deodorization tank 1 and extends to the outer side of the deodorization tank 1, the heating rod 262 is installed at one end, located on the outer side of the lower tank body 104;
wherein: still include closing plate 4, sliding connection has closing plate 4 from top to bottom in feedstock channel 2's the top spout, and feedstock channel 2 inboard bottom be equipped with closing plate 4 bottom cooperation sealed blind groove, and closing plate 4's top is equipped with gag lever post 41.
Referring to fig. 5, the mechanical temperature control module 261 includes an insulating sliding bar 2611, a U-shaped mounting slot plate 2612, a telescopic bar 2613, a spring 2614, a movable conductive head 2615, a fixed conductive head 2616, a movable bar 2617, a C-shaped elastic sheet 2618 and a fixed block 2619, the insulating sliding bar 2611 is slidably connected in a middle sliding slot of the U-shaped mounting slot plate 2612, two sides of the insulating sliding bar 2611 are respectively and movably connected with one end of the telescopic bar 2613, the other ends of the two telescopic bars 2613 are respectively and movably connected with two sides of the U-shaped mounting slot plate 2612, the spring 2614 is sleeved on the telescopic bar 2613, one end of the C-shaped elastic sheet 2618 fixed by the fixed block 2619, the back of the arc-shaped portion of the C-shaped elastic sheet 2618 contacts with the outer side of the heat dissipation plate 265, the other end of the C-shaped conductive sheet 2618 is movably connected with the end of the insulating sliding bar 2611 through the movable bar 2617, the movable head 2615 is fixed on the, the movable conductive head 2615 is connected with an external power supply through a wire, the fixed conductive head 2616 is connected with the heating rod 262 through a wire, when the heating rod starts to work, the springs at two sides of the insulating slide rod 2611 extrude the insulating slide rod 2611 to one side close to the C-shaped elastic sheet 2618, at the moment, the movable conductive head 2615 is electrically connected with the fixed conductive head 2616, the heating rod is conducted with the external power supply through a wire, the conductivity of the heat energy conducted by the heat dissipation plate 265 to the kitchen wastewater in the deodorization tank 1 is seventy five percent, at the moment, the heating rod works normally, the back of the C-shaped elastic sheet 2618 is contacted with the outer side of the heat dissipation plate 265, the C-shaped elastic sheet 2618 deforms according to the back temperature, the deformation increasing amplitude of the C-shaped elastic sheet 2618 is in positive proportion with the temperature rise, the C-shaped elastic sheet 2618 deforms due to the temperature formation in the temperature rise process of the heat dissipation plate 265, when the, at this time, the C-shaped elastic piece 2618 pushes away the insulating slide bar 2611 through the movable rod, finally, the movable conductive head 2615 on the side surface of the insulating slide bar 2611 is separated from the fixed conductive head 2616, so that the external power supply is stopped to supply electric energy to the heating rod, the heating rod stops working, the temperature of the heat dissipation plate 265 is reduced, the temperature inside the C-shaped elastic piece 2618 is reduced, deformation is recovered, the C-shaped elastic piece 2618 pulls back the insulating slide bar 2611 through the movable rod, the movable conductive head 2615 is in electrical contact with the fixed conductive head 2616 again, the heating rod continues to work and heat at the moment, so that the temperature in the deodorization tank 1 is maintained in a constant interval, and the mixed microbial inoculum is guaranteed to degrade two odors of ammonia gas.
Referring to fig. 2, the deodorization tank also comprises an air diffusing unit 22, the air diffusing unit 22 is located at the bottom of the inner side of the deodorization tank 1, a ring-shaped pipe 221 of the air diffusing unit 22 is connected to one end of an air inlet pipe 10, the other end of the air inlet pipe 10 penetrates through the side wall of the bottom of the deodorization tank 1 to be connected to an air outlet of an air pump 11 fixed on the bottom plate 21, an input end of the air pump 11 is connected to an output end of an external power supply through a control switch 8 fixed on the bottom plate 21, and a check valve 9 is connected in series. When the air pumping is not needed, in order to prevent the water in the kitchen waste water from flowing out through the air outlet hole, the air dispersing pipe, the annular pipe and the air inlet pipe in sequence, the one-way valve is arranged to only allow the external air to enter the deodorizing tank, but not allow the water in the deodorizing tank to flow out.
The air diffusing unit 22 comprises a ring-shaped pipe 221, an air diffusing pipe 222 and a central fixing ring 223, wherein the inner side of the ring-shaped pipe 221 is communicated with one end of the air diffusing pipe 222 at an equal angle, the other end of the air diffusing pipe 222 is fixed at the outer side of the central fixing ring 223 at an equal angle, and air outlet holes are formed in the air diffusing pipe 222 at equal distances. The bottom of the lower tank body is generally of a conical structure for conveniently discharging, decomposing and deodorizing kitchen waste water, the air diffusing unit can be set to be in a conical structure matched with the bottom of the inner side of the lower tank body, the annular pipe enables pumped air to be dispersed and enter the air diffusing pipe, then the air diffusing pipe enters the kitchen waste water in the deodorizing tank through the air outlet hole and contacts with a microbial inoculum, and the central fixing ring is used for improving the stability of the air diffusing pipe.
Still include discharge valve 12, blast pipe 13, trade liquid post 15 and ammonia absorption tank 16, the top gas outlet of deodorization jar 1 passes through discharge valve 12 and is connected with the one end of blast pipe 13, and the other end of blast pipe 13 extends to the inboard bottom of ammonia absorption tank 16, and ammonia absorption tank 16 places and is equipped with and trade liquid post 15 at bottom plate 21 and top, trades the top threaded connection of liquid post 15 and trades material lid 151. When the air pump is pumped into the air in the deodorization tank, overflowed gas enters the ammonia absorption tank through the exhaust pipe, and the odor is mainly ammonia, so that the overflowed odor is absorbed by absorption liquid in the ammonia absorption tank, and the inner absorption liquid of the ammonia absorption tank can be conveniently replaced through the liquid exchange column and the material exchange cover.
The ammonia absorption device further comprises an annular aeration pipe 25, wherein the annular aeration pipe 25 is arranged inside the ammonia absorption tank 16 and below the liquid level of the absorption liquid inside the ammonia absorption tank 16, the annular aeration pipe 25 is communicated with the end part of the exhaust pipe 13, and an aeration opening is formed in the annular aeration pipe 25. The odor can be fully dispersed and released into the absorption liquid through the annular aeration pipe and the aeration port, so that the absorption liquid can fully absorb the main components in the odor: ammonia gas and hydrogen sulfide.
Referring to fig. 1, the ammonia gas purification device further comprises a connecting pipe 17, a gas filter tank 18, a threaded cover 19, a discharge pipe 20 and a gas filter unit 24, wherein the top of the ammonia gas absorption tank 16 is communicated with the bottom of the gas filter tank 18 through the connecting pipe 17, the gas filter unit 24 is arranged inside the ammonia gas absorption tank 16, the threaded cover 19 is connected to an opening in the top of the gas filter tank 18 in a threaded manner, and the discharge pipe 20 is arranged on the top of the threaded cover 19. The odor passing through the ammonia gas absorption tank can be absorbed by the absorption liquid and then can be absorbed by other odor gases, and the odor gases are removed by secondary absorption through the gas filtering unit.
Referring to fig. 6, the gas filtering unit 24 includes a sealing plate 2411, a cylindrical activated carbon plate 2412 and a limiting fixing ring 2413, the bottom of the inside of the ammonia gas absorption tank 16 is fixedly mounted on the bottom of the cylindrical activated carbon plate 2412 through the limiting fixing ring 2413, the top of the cylindrical activated carbon plate 2412 is sealed by the sealing plate 2411, and the connecting pipe 17 extends to the inside of the cylindrical activated carbon plate 2412. The active carbon plate of the gas filtering unit is arranged in a cylindrical shape, so that the contact area between the cylindrical active carbon plate and air to be filtered is enlarged, and the passing efficiency of the air to be filtered can be improved.
Referring to fig. 2, the microbial agent mixing unit 3 includes a belt pulley 31, a belt 32, a cylindrical shell 33, a microbial agent container 34, a box cover 35, a rotating shaft 36, blades 37, a roller 38 and a leakage groove 39, the inner side of the feeding channel 2 is rotatably connected with the rotating shaft 36, the side surface of the rotating shaft 36 is provided with the blades 37 at equal angles, the end of the rotating shaft 36 passes through the side wall of the feeding channel 2 and is connected with the belt pulley 31, the upper side of the feeding channel 2 is provided with the cylindrical shell 33, the upper side of the cylindrical shell 33 is provided with the microbial agent container 34, the top opening of the microbial agent container 34 is buckled with the box cover 35, the feeding channel 2 is communicated with the interior of the microbial agent container 34 through the cylindrical shell 33, the interior of the cylindrical shell 33 is rotatably connected with the roller 38, the side surface of the roller 38 is provided with the leakage groove 39 at, the two pulleys 31 are drivingly connected by a belt 32.
Pour into kitchen waste water from feedstock channel, inside kitchen waste water flows into the deodorization jar from the feedstock channel of tilt up, the in-process that kitchen waste water flows drives the pivot through the blade and rotates, the belt pulley of pivot tip passes through the belt and drives the roller bearing and rotate, hold dry microbial inoculum in the microbial inoculum holds the case, the microbial inoculum falls into the small opening of upside because gravity in, when the roller bearing rotates, fall into the feedstock channel when the small opening that holds dry microbial inoculum completely down and mix with the kitchen waste water of flowing through, can make microbial inoculum and kitchen waste water mix fully, need not mix with the help of electric power agitating unit stirring, the microbial inoculum breeds and can decompose kitchen waste water and become useful fertilizer, and reduce the output of foul smell, kitchen waste water pours into in the deodorization jar completely.
The deodorization method of the environment-friendly deodorization device for kitchen wastewater comprises the following steps;
s1: the kitchen wastewater is poured from the feeding channel 2, the kitchen wastewater flows into the deodorization tank 1 from the feeding channel 2 which inclines upwards, the rotating shaft 36 is driven to rotate by blades in the flowing process of the kitchen wastewater, the belt pulley 31 at the end part of the rotating shaft 36 drives the rolling shaft 38 to rotate by the belt 32, the microbial agent containing box 34 contains dry microbial agents, the microbial agents fall into the leakage groove 39 on the upper side due to gravity, and when the rolling shaft 38 rotates, the leakage groove 39 containing the dry microbial agents falls into the feeding channel 2 when completely downward and is mixed with the flowing kitchen wastewater;
s2: completely pouring the kitchen wastewater into the deodorization tank 1, pressing down the limiting rod 41 to enable the bottom of the sealing plate 4 to be inserted into the blind groove to seal the feeding channel 2, controlling the air pump 11 to work by the control switch 8, pumping air into the air dissipation unit 22 by the air pump through the air inlet pipe 10, dispersing the air into the deodorization tank 1 by the annular pipe 221 of the air dissipation unit 22, and then contacting with a microbial inoculum in the kitchen wastewater in the air rising process;
s3: heat energy is generated through the heating rod, then the heat energy is conducted to the heat dissipation plate 265 positioned on the inner side of the deodorization tank 1 through the triangular heat conduction plate 263, and finally the heat energy is conducted to the kitchen waste water which is rich in starch, protein, grease and cellulose in the deodorization tank 1 through the heat dissipation fins 266, so that the mixed microbial inoculum in the deodorization tank is at a comfortable temperature, the decomposition effect of the microbial inoculum is ensured, the decomposition treatment efficiency is improved, the deodorization process is accelerated, and the heating temperature is in a range through the mechanical temperature control module 261;
s4: when the air pump 11 pumps air into the deodorization tank 1, overflowed gas enters the ammonia absorption tank 16 through the exhaust pipe 13, and since the odor is mainly ammonia, the overflowed odor is absorbed by the absorption liquid in the ammonia absorption tank 16, and the inner absorption liquid of the ammonia absorption tank 16 can be conveniently replaced through the liquid exchange column 15 and the material exchange cover 151;
s5: the odor passing through the ammonia gas absorption tank 16 is absorbed by the absorption liquid, and then the odor may have other odor gases, and is secondarily absorbed and removed by the gas filtering unit 24.
Example two: referring to fig. 7, the gas filtering unit 24 includes an activated carbon filter 2421 and a fixing frame 2422, the diameter of the activated carbon filter 2421 is equal to the inner diameter of the ammonia gas absorption tank 16, and the number of the activated carbon filter 2421 is not less than two and the activated carbon filter 2421 is fixed on the inner wall of the ammonia gas absorption tank 16 through the fixing frame 2422. The gas filtering unit filters the air to be exhausted through the plurality of layers of activated carbon filtering plates, the filtering effect is good, but correspondingly, the passing efficiency of the air to be filtered is slightly reduced.
In an actual experiment:
the following degradation rates were according to the Chinese standard: the biodegradation rate standard and the detection method of GB/T19277;
when a 180L vat was filled with kitchen waste water containing mainly starch, protein, oil and cellulose in a ratio of 4:3:1:1 and a mixed microbial inoculum of bacillus, citrobacter and lactobacillus in a ratio of 2:1:3 was used, the degradation rates of ammonia and hydrogen sulfide at different temperatures after 24 hours are as follows:
when a 180L vat is filled with kitchen waste water mainly containing starch, protein, oil and cellulose in a ratio of 4:3:1:1 and a mixed microbial inoculum of bacillus, citrobacter and lactobacillus in a ratio of 2:1:3 is used, the degradation rates of ammonia and hydrogen sulfide at 37 ℃ for different times are as follows:
the microbial agent for deodorization can be a dried mixed microbial agent of bacillus, citrobacter and lactobacillus, the protective agent of the microbial agent is trehalose, skimmed milk powder, soluble starch and glycerol in the drying process, so that the massive death of the bacillus in the dried microbial agent can be avoided, the deodorization effect of the microbial agent is obvious, according to experimental data, the degradation rate of ammonia and hydrogen sulfide is high when the temperature of kitchen wastewater is controlled to be about thirty-seven ℃, the degradation rate of ammonia and hydrogen sulfide is obviously increased before twelve hours, but the degradation rate of ammonia and hydrogen sulfide is obviously increased after one twelve hours, so that the deodorization effect is the best in order to improve the deodorization efficiency and treat twelve hours.
It should be noted that the air pump disclosed in the embodiments may be an explosion-proof air pump, specifically, an explosion-proof laminated air pump manufactured by wuxiqiangtai mechanical manufacturing ltd may be used, the control switch controls the air pump to operate by a method commonly used in the prior art, and the heating rod may be a commercially available electric heating rod with a suggested power of 100-.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. Kitchen waste water environmental protection deodorizing device, its characterized in that: comprises a deodorization tank (1), a microorganism bacterium agent mixing unit (3) and a tank body heating unit (26);
deodorizing tank (1): the deodorization tank is characterized in that a feeding channel (2) communicated with the interior of the deodorization tank is arranged on the side face of the top of the deodorization tank (1) in an upward inclined mode, a microbial agent mixing unit (3) is installed on the feeding channel (2), a mixed microbial agent used for degrading starch, protein, grease and cellulose is contained in a microbial agent containing box (34) of the microbial agent mixing unit (3), the mixed microbial agent is bacillus, citrobacter and lactobacillus after being dried, the bottom of the feeding channel (2) is connected with the side face of the bottom of the deodorization tank (1) through a support rod (14), the bottom of the deodorization tank (1) is supported through a support frame (5), the support frame (5) is fixed on a bottom plate (21) through support legs (23), a discharge pipe (7) is arranged at the bottom of the deodorization tank (1), and a discharge valve (6) is arranged on the discharge pipe (7);
tank heating unit (26): the tank body heating unit (26) comprises a mechanical temperature control module (261), a heating rod (262), a triangular heat conducting plate (263), a heat insulating layer (264), a heat dissipation plate (265) and heat dissipation fins (266), wherein the heat dissipation plate (265) is arc-shaped and is embedded at the inner side of the bottom of the deodorization tank (1), the inner side of the heat dissipation plate (265) is provided with heat dissipation fins (266) for dissipating heat to the kitchen waste water, the outer side of the heat dissipation plate (265) is vertically connected with the long edge of the triangular heat conduction plate (263) at equal intervals, one end of the triangular heat conduction plate (263), which is far away from the heat dissipation plate (265), penetrates through the through groove on the side surface of the bottom of the deodorization tank (1) and extends to the outer side of the deodorization tank (1), one end of the triangular heat conducting plate (263) positioned at the outer side of the lower tank body (104) is provided with a heating rod (262), the outer side of the triangular heat-conducting plate (263) is wrapped with an insulating layer (264), and the triangular heat-conducting plate (263) is provided with a mechanical temperature control module (261) for controlling the heating rod (262);
wherein: the feeding device is characterized by further comprising a closing plate (4), the closing plate (4) is connected in a sliding mode in the top sliding groove of the feeding channel (2) in an up-and-down sliding mode, a blind groove matched and sealed with the bottom of the closing plate (4) is formed in the bottom of the inner side of the feeding channel (2), and a limiting rod (41) is arranged at the top of the closing plate (4).
2. The environment-friendly kitchen wastewater deodorization device according to claim 1, characterized in that: the mechanical temperature control module (261) comprises an insulating sliding rod (2611), a U-shaped mounting groove plate (2612), an expansion rod (2613), a spring (2614), a movable conductive head (2615), a fixed conductive head (2616), a movable rod (2617), a C-shaped elastic sheet (2618) and a fixed block (2619), wherein the insulating sliding rod (2611) is connected in a sliding groove in the middle of the U-shaped mounting groove plate (2612) in a sliding way, two sides of the insulating sliding rod (2611) are respectively and movably connected with one end of the expansion rod (2613), the other ends of the two expansion rods (2613) are respectively and movably connected with two sides of the U-shaped mounting groove plate (2612), the expansion rod (2613) is sleeved with the spring (2614), one end of the C-shaped elastic sheet (2618) fixed by the fixed block (2619) is in contact with the back of an arc-shaped part of the C-shaped elastic sheet (2618) to the outer side of a heat dissipation plate (265), and the other end of the C-, the movable conductive head (2615) is fixed on the side surface of the insulating sliding rod (2611), the fixed conductive head (2616) is fixed on the inner side of the U-shaped mounting groove plate (2612) and is arranged corresponding to the movable conductive head (2615), the movable conductive head (2615) is connected with an external power supply through a lead, and the fixed conductive head (2616) is connected with the heating rod (262) through a lead.
3. The environment-friendly kitchen wastewater deodorization device according to claim 1, characterized in that: still include gas unit (22) of loosing, gas unit (22) of loosing is located the inboard bottom of deodorization jar (1), and the one end of intake pipe (10) is connected in ring pipe (221) of gas unit (22), the bottom lateral wall that the other end of intake pipe (10) passed deodorization jar (1) is connected with the air pump (11) gas outlet of fixing on bottom plate (21), the input of air pump (11) is connected with the output of external power source through fixing control switch (8) on bottom plate (21), it has check valve (9) to concatenate on intake pipe (10), gas unit (22) of loosing includes ring pipe (221), gas pipe (222) and central solid fixed ring (223), the inboard isogonism of ring pipe (221) communicates with the one end of gas pipe (222), the other end isogonism of gas pipe (222) is fixed in the outside of central solid fixed ring (223), and the air dispersing pipe (222) is provided with air outlets at equal distances.
4. The environment-friendly kitchen wastewater deodorization device according to claim 1, characterized in that: still include discharge valve (12), blast pipe (13), trade liquid post (15) and ammonia absorption jar (16), the top gas outlet of deodorization jar (1) passes through discharge valve (12) and is connected with the one end of blast pipe (13), the other end of blast pipe (13) extends to the inboard bottom of ammonia absorption jar (16), ammonia absorption jar (16) are placed and are equipped with at bottom plate (21) and top and trade liquid post (15), trade the top threaded connection of liquid post (15) and trade material lid (151).
5. The environment-friendly kitchen wastewater deodorization device according to claim 4, characterized in that: still include annular aeration pipe (25), annular aeration pipe (25) set up inside ammonia absorption tank (16) and are located ammonia absorption tank (16) inside absorption liquid level below, annular aeration pipe (25) and blast pipe (13) tip intercommunication, and be equipped with the aeration mouth on annular aeration pipe (25).
6. The environment-friendly kitchen wastewater deodorization device according to claim 4 or 5, characterized in that: still include connecting pipe (17), gas filtration jar (18), screw cap (19), discharge pipe (20) and gas filtration unit (24), the bottom intercommunication of connecting pipe (17) and gas filtration jar (18) is passed through at the top of ammonia absorption jar (16), the inside of ammonia absorption jar (16) is provided with gas filtration unit (24), the open-top threaded connection of gas filtration jar (18) has screw cap (19), and the top of screw cap (19) is equipped with discharge pipe (20).
7. The environment-friendly kitchen wastewater deodorization device according to claim 6, characterized in that: the gas filtering unit (24) comprises a sealing plate (2411), a cylindrical activated carbon plate (2412) and a limiting fixing ring (2413), the bottom of the inner side of the ammonia gas absorption tank (16) is fixedly installed at the bottom of the cylindrical activated carbon plate (2412) through the limiting fixing ring (2413), the top of the cylindrical activated carbon plate (2412) is sealed through the sealing plate (2411), and the connecting pipe (17) extends to the inner side of the cylindrical activated carbon plate (2412).
8. The environment-friendly kitchen wastewater deodorization device according to claim 7, characterized in that: the gas filtering unit (24) comprises an activated carbon filtering plate (2421) and a fixing frame (2422), the diameter of the activated carbon filtering plate (2421) is equal to the inner diameter of the ammonia absorption tank (16), and the activated carbon filtering plate (2421) is not less than two and is fixed on the inner wall of the ammonia absorption tank (16) through the fixing frame (2422).
9. The environment-friendly kitchen wastewater deodorization device according to claim 1, characterized in that: microbial inoculum is mixed unit (3) and is contained belt pulley (31), belt (32), cylinder shell (33), microbial inoculum and holds case (34), case lid (35), pivot (36), blade (37), roller bearing (38) and small opening (39), the inboard rotation of feedstock channel (2) connects pivot (36), the side of pivot (36) is the angle such as be provided with blade (37), the tip of pivot (36) passes feedstock channel (2) lateral wall and is connected with belt pulley (31), the upside of feedstock channel (2) is equipped with cylinder shell (33), the upside of cylinder shell (33) is equipped with microbial inoculum and holds case (34), the top opening lock joint of microbial inoculum holds case (34) has case lid (35), feedstock channel (2) holds case (34) inside intercommunication through cylinder shell (33) and microbial inoculum, the inside rotation of drum shell (33) is connected with roller shaft (38), leak groove (39) have been seted up to the side equidistance of roller shaft (38), the one end axle of roller shaft (38) passes drum shell (33) lateral wall and connects another belt pulley (31), and two belt pulley (31) are through belt (32) transmission connection.
10. The deodorization method of the environment-friendly kitchen wastewater deodorization device is characterized by comprising the following steps of: comprises the following steps;
s1: the kitchen wastewater is poured from the feeding channel 2, the kitchen wastewater flows into the deodorization tank 1 from the feeding channel 2 which inclines upwards, the rotating shaft 36 is driven to rotate by blades in the flowing process of the kitchen wastewater, the belt pulley 31 at the end part of the rotating shaft 36 drives the rolling shaft 38 to rotate by the belt 32, the microbial agent containing box 34 contains dry microbial agents, the microbial agents fall into the leakage groove 39 on the upper side due to gravity, and when the rolling shaft 38 rotates, the leakage groove 39 containing the dry microbial agents falls into the feeding channel 2 when completely downward and is mixed with the flowing kitchen wastewater;
s2: completely pouring the kitchen wastewater into the deodorization tank 1, pressing down the limiting rod 41 to enable the bottom of the sealing plate 4 to be inserted into the blind groove to seal the feeding channel 2, controlling the air pump 11 to work by the control switch 8, pumping air into the air dissipation unit 22 by the air pump through the air inlet pipe 10, dispersing the air into the deodorization tank 1 by the annular pipe 221 of the air dissipation unit 22, and then contacting with a microbial inoculum in the kitchen wastewater in the air rising process;
s3: heat energy is generated through the heating rod, then the heat energy is conducted to the heat dissipation plate 265 positioned on the inner side of the deodorization tank 1 through the triangular heat conduction plate 263, and finally the heat energy is conducted to the kitchen waste water which is rich in starch, protein, grease and cellulose in the deodorization tank 1 through the heat dissipation fins 266, so that the mixed microbial inoculum in the deodorization tank is at a comfortable temperature, the decomposition effect of the microbial inoculum is ensured, the decomposition treatment efficiency is improved, the deodorization process is accelerated, and the heating temperature is in a range through the mechanical temperature control module 261;
s4: when the air pump (11) pumps air into the deodorization tank (1), overflowed gas enters the ammonia gas absorption tank (16) through the exhaust pipe (13), and because the odor is mainly ammonia gas, the overflowed odor is absorbed by absorption liquid in the ammonia gas absorption tank (16), and the absorption liquid in the ammonia gas absorption tank (16) can be conveniently replaced through the liquid changing column (15) and the material changing cover (151);
s5: the odor passing through the ammonia gas absorption tank (16) is absorbed by the absorption liquid, and then gas with other odor can be secondarily absorbed and removed by the gas filtering unit (24).
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