CN108246781A - A kind of smelly deodoration system of refuse landfill control - Google Patents

Abstract

The present invention discloses a kind of smelly deodoration system of refuse landfill control, including：The smelly unit of the closed control of reservoir area overlay film, the smelly unit of the closed control of landfill operation face antiseepage film, ring field and the closed smelly unit of control of subregion film anchoring；Junk-heap body control of the closed smelly unit of control of reservoir area overlay film in rubbish reservoir area is smelly, the reservoir area overlay film smelly unit of closed control close to or surround the smelly unit setting of the closed control of landfill operation face antiseepage film, the antiseepage film closed smelly unit of control in the landfill operation face is smelly for garbage loading embeading work surface control；The ring field and the closed smelly unit of control of subregion film anchoring are arranged on the smelly unit periphery of the closed control of reservoir area overlay film.The present invention, which provides, a kind of smelly to be combined garbage loading embeading operation with control, it will control and smelly be combined with deodorization, the control that is removed there is provided comprehensive, multi-layer is smelly, deodoration system, can be arranged and set the operation activity duration according to the variation of seasonal climate and weather wind direction, control is smelly, deodorizing effect is good.

Description

Odor control and deodorization system for landfill

technical field

The invention relates to the technical field of sanitation garbage treatment, in particular to an odor control and deodorization system for a garbage landfill.

Background technique

Malodorous exhaust gases are the main pollutants produced by landfills during their operation. Doing a good job in odor control and deodorization of landfills is one of the key issues in the operation and management of landfills. In particular, valley-type landfills, landfills that are close to the concentrated residential area and the surrounding population are densely populated, due to the limited location of the site and the high pressure from the public, this type of waste It is very difficult to control and deodorize the reservoir area of the landfill.

Usually, in the operation process of the waste landfill reservoir area in various regions of China, there is generally insufficient odor control during the operation process. The traditional modes such as the end-of-day soil covering mode or impermeable cloth covering mode to control odor, combined with deodorant spraying and deodorization on the working surface, etc. Passive deodorization poses great difficulties. At present, this kind of odor control and deodorization method in the landfill reservoir area is difficult to meet the requirements of the national "Odor Pollutant Discharge Standard", the management requirements of the environmental protection department, and the environmental quality of the surrounding residents. Require. This has resulted in constant complaints from the surrounding area and complaints from residents, resulting in greater social instability and seriously affecting the overall planning and investment environment of the surrounding area.

Therefore, there are defects in the prior art and need to be improved.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a landfill odor control and deodorization system.

The technical scheme of the present invention is as follows: a waste landfill odor control and deodorization system, including: a reservoir area covered film airtight odor control unit, an anti-seepage film airtight odor control unit on the landfill operation surface, an annular field and a partitioned film anchoring airtight control unit Odor unit; the film-covered airtight odor control unit in the reservoir area is used to control the odor of the garbage pile in the garbage storage area, and the airtight odor control unit covered by the film in the reservoir area is set next to or surrounded by the anti-seepage film airtight odor control unit of the landfill operation surface, The airtight odor control unit of the anti-seepage film on the landfill operation face is used for odor control on the landfill operation face; the airtight odor control unit anchored by the ring field and the partition membrane is arranged on the periphery of the film-covered airtight odor control unit in the reservoir area.

Further, the surface of the film-covered airtight odor control unit in the storage area is airtightly covered with a sealing film, and the adjacent sealing films are overlapped by hot-melt welding, and the sealing films are overlapped with each other The width is not less than 150mm.

Further, the airtight odor control unit of the anti-seepage membrane on the landfill operation surface is arranged in the airtight odor control unit of the reservoir area, and the garbage dump is located below the airtight odor control unit of the anti-seepage membrane on the landfill operation surface. An anti-seepage film is provided above the above; the four sides of the anti-seepage film are covered on the sealing film of the film-covered airtight odor control unit in the reservoir area, and the external extension of the anti-seepage film on the sealing film is not less than 2 meters. The surrounding edge and the sealing film are connected by non-stick glue.

Further, the surrounding field and partition membrane anchoring airtight odor control unit includes an anchoring ditch surrounding the storage area covered membrane airtight odor control unit and a sealing film arranged on the anchoring ditch and extending along the anchoring ditch, the width of the sealing film is not Less than 6 meters, one side in the width direction of the sealing film covers the bottom and one side of the anchor ditch, and the other side extends to the bottom of the garbage dump of the film-covered airtight odor control unit in the reservoir area; the anchor ditch is backfilled with clay, and the clay is compacted After laying plain concrete protective layer.

Further, it also includes an elevated fog wall deodorization unit for the ring field, and the elevated fog wall deodorization unit for the ring field includes an industrial control device, a number of liquid storage tanks, a booster pump, and an elevated fog wall; The field and partition membrane anchoring airtight odor control unit are set, the elevated fog wall is respectively connected to the booster pump through the pipeline, the booster pump is also connected to the liquid storage tank through the pipeline, and the industrial control device is electrically connected to the booster pump.

Further, it also includes a fixed air gun deodorization unit, which is arranged on the periphery of the ring field and the partition membrane anchored airtight odor control unit, including industrial control devices, several liquid storage tanks, booster pumps, and fixed air guns. The fixed wind guns are respectively arranged around the ring field and the partition membrane anchoring airtight odor control unit, the fixed wind guns are respectively connected to the booster pump through the pipeline, and the booster pump is also connected to the liquid storage tank through the pipeline, and the industrial control device is connected with the liquid storage tank. The booster pump is electrically connected.

Further, the fixed air gun is arranged around the periphery of the elevated fog wall, and there is a ring road between the fixed wind gun and the elevated fog wall, and a mobile deodorizing and odor control fog gun car is installed on the ring road.

Further, it also includes a mobile spraying odor control and deodorization unit on the landfill operation surface. The mobile spray odor control and deodorization unit on the landfill operation surface is arranged on the airtight odor control unit of the anti-seepage membrane on the landfill operation surface, including at least two mobile spray equipment.

Further, the landfill operation face is connected with the ring road through the approach road.

Further, the sealing film is a thick HDPE film with a thickness of more than 0.5 mm.

Adopt above-mentioned scheme, the present invention has following beneficial effect:

1. The present invention combines the landfill operation with odor control. The airtight odor control unit covered with film in the reservoir area, the airtight odor control unit anchored by the ring field and the partition membrane, and the airtight odor control unit of the anti-seepage film on the landfill operation surface are separated by physical separation. The method is to seal and isolate the garbage to control odor. The present invention adopts anti-seepage film and airtight film, and at the same time adds some airtight auxiliary materials, equipment and tools to cooperate with it. The operation process is simple, the covering airtight effect is good, and the odor control performance is excellent;

2. The present invention combines odor control and deodorization. After the measures of odor control and air purification and deodorization in landfill operations are implemented, the range of fugitive deodorization in the reservoir area can be narrowed, and the key areas of deodorization in the reservoir area can be clearly defined and carried out. Targeted deodorization, avoid blind deodorization, so as to achieve good deodorization effect;

3. The present invention combines landfill operations with odor control, odor control and deodorization, and sets up all-round and multi-level deodorization units. The deodorization equipment and system can be carried out according to changes in seasonal climate and weather wind direction. By arranging and setting the operation time, adjusting the mixing concentration ratio and the type of the deodorizing liquid, the odor control and deodorizing effect is good.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a structural representation of the present invention;

Figure 2 is a schematic diagram of the welding structure of thick HDPE film in the storage area;

Fig. 3 is a schematic diagram of the structure of the anti-seepage film airtight odor control unit on the landfill operation face;

Fig. 4 is a schematic diagram of the structure of the mobile spraying odor control and deodorization unit on the landfill operation surface;

Figure 5 is a schematic diagram of the structure of the anchoring groove;

Fig. 6 is a structural schematic diagram of the elevated fog wall deodorization unit around the field;

Fig. 7 is a structural schematic diagram of the deodorizing unit of the fixed air gun.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1, the present invention provides a landfill odor control and deodorization system, including: a film-covered airtight odor control unit 1 in the reservoir area, an airtight odor control unit 2 with an anti-seepage film on the landfill operation surface, a ring field and partitions Membrane-anchored airtight odor control unit 3; the storage area film-covered airtight odor control unit 1 is used for odor control of garbage dumps in the garbage storage area, and the storage area film-covered airtight odor control unit 1 is adjacent to or surrounds the landfill operation surface for anti-seepage The membrane airtight odor control unit 2 is provided, and the anti-seepage film airtight odor control unit 2 of the landfill operation surface is used for the odor control of the garbage landfill operation surface; The membrane seals the periphery of the odor control unit 1 .

The heap formed by putting garbage into the storage area is compacted and then flattened. The storage area is equipped with a film-covered airtight odor control unit 1, and the storage area is covered with a film-covered airtight odor control unit 1. All areas of the storage area except the working surface need to be sealed. Carry out airtight coverage to prevent rainwater from directly entering the garbage dump in the reservoir area, and ensure that the controlled odor cannot be directly discharged into the air. Referring to Fig. 2, as an embodiment, the sealing film adopts a thick HDPE film with a thickness of more than 0.5 mm. The adjacent thick HDPE films are overlapped by hot-melt welding, and the overlap width between the thick HDPE films and the thick HDPE films is not less than 150 mm. T-shaped and cross-shaped intersection areas formed between thick HDPE membranes for enhanced welding.

During the operation of the landfill site, new landfill waste is required every day and new work areas are constantly generated. Before the opening of the site every day, part of the HDPE film-covered area needs to be cut open for the landfill operation of entering the site on that day, and the site is closed on the same day. A small part of the pile that has not been compacted and leveled before can not be covered with HDPE film for the second time. In order to ensure that the odor of the garbage pile in this part of the area does not leak out, a landfill operation is set in the film-covered airtight odor control unit 1 of the reservoir area. Surface anti-seepage film airtight odor control unit 2.

As shown in Fig. 3, the anti-seepage membrane airtight odor control unit 2 of the landfill operation surface is arranged on the landfill operation surface of the reservoir area, and the bottom of the landfill operation surface anti-seepage membrane airtight odor control unit 2 is a garbage pile, An anti-seepage film is provided above the garbage dump; as an embodiment, the thickness of the anti-seepage film is 0.3mm, and the surroundings of the anti-seepage film are covered on the thick HDPE film of the film-covered airtight odor control unit 1 in the storage area. , The edge seams of the impermeable membrane are connected by seaming. The outer extension of the four sides of the anti-seepage film on the thick HDPE film is not less than 2 meters, and the surrounding edges of the anti-seepage film and the thick HDPE film are connected by non-stick glue, which can quickly form a closed temporary coverage of the garbage pile on the working surface, It can also well control the odor of the garbage dump under the membrane from leaking.

As shown in Figure 4, during the operation of the waste landfill site, when the garbage removal vehicle enters the site every day to dump the garbage, and during the on-site push filling and compaction leveling process after the removal vehicle dumps the garbage, odor will be generated, so The landfill operation surface of the reservoir area is also provided with a landfill operation surface mobile spray odor control deodorization unit 7, and the landfill operation surface mobile spray odor control deodorization unit 7 is arranged on the landfill operation surface anti-seepage film airtight control The odor unit 2 includes at least two mobile spray devices to spray the deodorizing working fluid for odor control and deodorization.

The mobile spray odor control and deodorization equipment is composed of a liquid storage tank, a plunger pump, a rubber hose, and a spray gun head. The equipment comes with wheels for free movement. In the liquid storage tank that comes with the equipment, clean water and deodorant stock solution are evenly mixed into the working fluid, and the plunger pump that comes with the equipment is used to extract the deodorizing working fluid from the liquid storage tank. 1. The spray gun head is evenly sprayed onto the surface of the garbage dump. The manual hand-held control rubber hose and the spray gun head can be used flexibly according to the on-site operation. The deodorizing working fluid can be sprayed by the spray gun head. From the opening to the closing, it can effectively control the emission of odor from the working surface, and the effect of odor control and deodorization is obvious.

The edge of the reservoir area is provided with a ring field and a partitioned membrane anchored airtight odor control unit 3. The ring field and partition membrane anchored airtight odor control unit 3 includes an anchor ditch surrounding the reservoir area covered with a film-covered airtight odor control unit 1 and an anchor ditch arranged on the anchor ditch. And a thick HDPE film extending along the anchoring ditch, the width of the thick HDPE film is not less than 6 meters, one side in the width direction of the thick HDPE film is covered on the bottom and one side of the anchoring ditch, and the other side is covered with a film for airtight control of the storage area. The bottom of the garbage dump of the smelly unit 1 extends; the anchor ditch is backfilled with clay, and the plain concrete protective layer is laid after the clay is tamped.

As shown in Fig. 5, in this embodiment, a 0.5 mm thick HDPE film head with a width of 6 meters is pre-laid in the anchoring ditch, and then the pre-laid HDPE film is hot-melt welded between the films. After the hot-melt welding is completed, about The 2.5m wide membrane head is laid in the anchor ditch, and clay is backfilled into the anchor ditch at the same time. After the clay is tamped, a 150mm thick plain concrete protective layer is laid, and the remaining HDPE membrane extension of about 3.5m wide reaches the bottom of the garbage dump in the reservoir area. In order to ensure that the gas does not leak out, the HDPE membrane between the reservoir area and the anchoring ditch is welded to the HDPE membrane on the surface of the reservoir area.

Referring to Figure 6, the odor control and deodorization system of the waste landfill site also includes an elevated fog wall deodorization unit around the field, which is used to intercept the odor escaping from the reservoir area to the surroundings. The elevated fog wall deodorization unit of the surrounding field includes an industrial control device 6, several liquid storage barrels 43, a booster pump 42, and an elevated fog wall 41; the several elevated fog walls 41 respectively surround the surrounding field and the partition membrane anchoring airtight odor control unit 3, the elevated fog wall 41 is respectively connected to the booster pump 42 through pipelines, the booster pump 42 is also connected to the liquid storage barrel 43 through pipelines, and the industrial control device 6 is electrically connected to the liquid distribution pump 44.

The deodorant stock solution and clear water in the deodorant stock solution barrel 45 are uniformly mixed according to the required ratio through the liquid supply pump, and then enter the liquid storage barrel 43 to form a working fluid. The industrial control device 6 controls the booster pump 42 according to the set operation mode. The deodorizing working liquid in the liquid storage tank 43 is sent to the elevated fog wall 41 through the liquid supply pipe (the height of the atomized strong fixed steel column is more than 6m), and finally through the UPVC pipe installed on the elevated fog wall 41 and the distance is about 2m. The atomizing nozzle sprays from top to bottom to form an intercepting atomization wall. The system fixedly intercepts the odor escaping from the reservoir area to the surroundings in a large range. The concentration of the deodorizing working fluid can be adjusted according to actual needs. The industrial control device 6 can perform segmental control and flow control according to the climate or wind direction, and the deodorizing effect is good.

Referring to Figure 7, the odor control and deodorization system of the landfill site also includes a fixed air gun deodorization unit, which is arranged on the periphery of the ring field and the partition membrane anchoring airtight odor control unit 3, including industrial control devices 6 and some liquid storage tanks 53, booster pumps 52, fixed air guns 51. In this embodiment, the plurality of fixed air guns 51 are respectively arranged around the ring field and the partition membrane anchoring airtight odor control unit 3, and the fixed air guns 51 are arranged around the periphery of the elevated fog wall 41, and the fixed air guns 51 are respectively passed through the pipeline and the airtight odor control unit 3. The booster pump 52 is connected, and the booster pump 52 is also connected to the liquid storage barrel 53 through a pipeline, and the industrial control device 6 is electrically connected to the booster pump 52 .

The deodorant stock solution and clear water in the deodorant stock solution barrel 55 are evenly mixed according to the required ratio by the liquid supply pump 54, and then enter the liquid storage barrel 53 to form a working liquid, and then the deodorant in the liquid storage barrel is pumped by the booster pump 52. The smelly working liquid is sent to the liquid storage tank 53 randomly equipped with each fixed wind gun through the liquid supply pipe, and finally sent to the atomizing nozzle by the self-priming plunger pump randomly equipped with the fixed wind gun 51, and then sprayed into the air by the fan, with a range of 30m Above, the head of the jackhammer can be rotated at an elevation angle of 45 degrees and horizontally at 180 degrees. After the system is installed and implemented, it can periodically intercept the escaping odor at key positions (the position can be moved periodically), the concentration of the deodorizing working fluid can be adjusted according to actual needs, and the operation of the fixed air gun can be controlled through the industrial control device 6 Time control according to climate or wind direction, good deodorizing effect.

Referring to Figure 1, a ring road is provided between the fixed wind gun and the elevated fog wall, and the landfill operation surface is connected to the ring road through the approach road. An anchorage structure is provided between both sides of the approach road and the reservoir area, and a temporary anchorage structure is provided at the connection between the approach road and the landfill operation.

The road around the field is provided with mobile deodorization and odor control fog cannons 8 . The mobile odor control and deodorization fog gun car 8 is composed of a vehicle, a liquid storage tank, a high-pressure plunger pump, a liquid supply pipe, an atomizing nozzle, a powerful fan, and a control system, and is used for flow control and deodorization in the landfill reservoir area. , suitable for special weather, bad meteorological conditions, and unfavorable wind direction for instant deodorization in the air with oppressive coverage. The working principle is that the original deodorant liquid and clean water are evenly mixed according to the required ratio and then enter the vehicle-mounted liquid storage tank to form a working liquid. The pipes are sent to each atomizing nozzle, and finally the atomized deodorizing working fluid is sent to the area where the odor source is generated through a powerful fan. Carry out mobile odor control and deodorization according to the actual situation. The mobile odor control and deodorization fog gun vehicle is equipped with a mobile interception of high key concentration and large emission of fugitive odor after it is put into use.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (10)

1. a kind of smelly deodoration system of refuse landfill control, which is characterized in that including：The smelly unit of the closed control of reservoir area overlay film, landfill are made The smelly unit of the closed control of industry face antiseepage film, ring field and the closed smelly unit of control of subregion film anchoring；The closed smelly unit of control of reservoir area overlay film It is smelly for the junk-heap body control in rubbish reservoir area, the reservoir area overlay film smelly unit of closed control close to or to surround landfill operation face antiseepage film close The smelly unit setting of control is closed, the antiseepage film closed smelly unit of control in the landfill operation face is smelly for garbage loading embeading work surface control；The ring Field and the closed smelly unit of control of subregion film anchoring are arranged on the smelly unit periphery of the closed control of reservoir area overlay film.

2. the smelly deodoration system of refuse landfill control according to claim 1, which is characterized in that the closed control of reservoir area overlay film Smelly cell surface carries out closed covering using diaphragm seal, is overlapped by way of sweat soldering between the adjacent diaphragm seal, And mutual lap width is respectively not less than 150mm between diaphragm seal and diaphragm seal.

3. the smelly deodoration system of refuse landfill control according to claim 2, which is characterized in that landfill operation face antiseepage The closed smelly unit of control of film is arranged among the closed smelly unit of control of reservoir area overlay film, under the closed smelly unit of control of landfill operation face antiseepage film Side is junk-heap body, and the top of junk-heap body is equipped with antiseepage film；It is smelly that the surrounding of the antiseepage film is covered in the closed control of reservoir area overlay film On the diaphragm seal of unit, and perimetric length of the antiseepage film on diaphragm seal be not less than 2 meters, the edge of antiseepage film and diaphragm seal Between connected by non cohesive gel.

4. the smelly deodoration system of refuse landfill control according to claim 1, which is characterized in that the ring field and subregion film anchor Gu the smelly unit of closed control include around the closed smelly unit of control of reservoir area overlay film anchoring groove and be arranged on anchoring groove and along anchoring The diaphragm seal of ditch extension, for the width of the diaphragm seal not less than 6 meters, the side of diaphragm seal width direction is covered in the bottom of anchoring groove Portion and one side, the junk-heap body bottom extension of another lateral closed smelly unit of control of reservoir area overlay film；It is backfilled in the anchoring groove viscous Soil is laid with plain concrete cover after clay compacting.

5. the smelly deodoration system of refuse landfill control according to claim 1, which is characterized in that further include the overhead mist wall in ring field Deodorization unit, the overhead mist wall deodorization unit in ring field include industry control device and several liquid storing barrels, booster pump, overhead mist wall；Institute State several overhead mist walls respectively around ring field and the closed control of subregion film anchoring smelly unit setting, overhead mist wall respectively by pipeline with Booster pump connects, and booster pump is also connect by pipeline with liquid storing barrel, and the industry control device is electrically connected with booster pump.

6. the smelly deodoration system of refuse landfill control according to claim 1, which is characterized in that further include fixed impact gun deodorization Unit, the fixed impact gun deodorization unit is arranged on ring field and the smelly unit periphery of the closed control of subregion film anchoring, including industry control device With several liquid storing barrels, booster pump, fixed impact gun；Several fixed impact guns are smelly around ring field and the closed control of subregion film anchoring respectively Unit is set, and fixed impact gun is connect respectively by pipeline with booster pump, and booster pump is also connect by pipeline with liquid storing barrel, the work Device is controlled to be electrically connected with booster pump.

7. the smelly deodoration system of refuse landfill control according to claim 5 or 6, which is characterized in that the fixed impact gun ring Around the periphery setting of overhead mist wall, ring field road is equipped between the fixed impact gun and overhead mist wall, is set on the road of the ring field There is the flowing smelly fog gun vehicle of deodorization control.

8. the smelly deodoration system of refuse landfill control according to claim 1, which is characterized in that further include the shifting of landfill operation face It moves spraying and controls smelly deodorization unit, it is close that the smelly deodorization unit of the landfill operation face movement spraying control is arranged on landfill operation face antiseepage film It closes on the smelly unit of control, including at least two mobile spraying apparatus.

9. the smelly deodoration system of refuse landfill control according to claim 3, which is characterized in that the landfill operation face passes through Road of marching into the arena is connect with ring field road.

10. the smelly deodoration system of refuse landfill control according to claim 1, which is characterized in that the diaphragm seal is thickness The thick HDPE film of more than 0.5mm.