A method and system for accelerating the degradation, reduction and harmlessness of landfill waste

Abstract

The present invention relates to a method and system for accelerating the digestion, reduction and harmlessness of landfill garbage. To solve the problem of landfill garbage digestion, a leachate collection tunnel for collecting leachate is set at the lowest point of the bottom of the landfill, and the leachate is transported to the leachate storage tank on the landfill through a leachate delivery pump pipe. The bottom of the leachate storage tank quantitatively transports the base leachate to the leachate-based garbage reaction auxiliary agent mixing tank through a control valve and a metering pump pipe. A plurality of parallel garbage reaction auxiliary agent high-level batching tanks distribute garbage reaction auxiliary agents to the mixing tank in proportion as required; a drilling sampler for the lower landfill layer set on the top surface of the landfill is used to guide the batching of leachate-based garbage reaction auxiliary agents, and the bottom of the mixing tank and the leachate storage tank supplies injection materials to the injection operation device through a pipeline. It has the advantages of being able to effectively realize the digestion, reduction and harmlessness of landfill garbage and significantly alleviate the shortage of landfill sites in large and medium-sized cities.

Description

Technical Field

[0001] The invention relates to a landfill garbage treatment device, and in particular to a treatment method and system for accelerating the digestion, reduction and harmlessness of landfill garbage. Background Art

[0002] Landfills generally use a layered covering method to treat garbage. After a layer of garbage is piled up, it is covered with a layer of loess, which can easily reduce the pollution of garbage. Landfill is to build a well-designed facility underground or on the ground to isolate garbage from the surrounding environment (groundwater, air and rainwater). This isolation is achieved through the bottom lining and daily soil covering. Sanitary landfills use clay linings to isolate garbage from the environment, and municipal solid waste landfills use synthetic (plastic) linings to isolate garbage from the environment. The purpose of landfills is to bury garbage so that it is separated from groundwater, kept dry and out of contact with air. Under such conditions, garbage will not decompose in large quantities. Landfills are different from compost piles, the purpose of the latter is to quickly decompose buried garbage. However, the current large and medium-sized cities, especially super-large cities, are in short supply of land for landfills, and the problem of the more urgent need for landfill waste digestion, reduction and harmlessness technology equipment has not been alleviated. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects of the prior art and provide a method for accelerating the digestion, reduction and harmlessness of landfill waste. The present invention also provides a treatment system for implementing the method of the present invention.

[0004] To achieve the above-mentioned purpose, the method for accelerating the digestion, reduction and harmlessness of landfill garbage of the present invention is that a leachate collection tunnel for collecting leachate is set at the lowest point at the bottom of the landfill, and the leachate is transported to the leachate storage tank on the landfill through a leachate delivery pump pipe, and the leachate storage tank quantitatively transports the base leachate to the leachate-based garbage reaction aid mixing tank, and a plurality of parallel garbage reaction aid material high-level batching tanks distribute garbage reaction aid materials to the mixing tank in proportion as needed; a drilling sampler for the lower landfill layer set on the top surface of the landfill is used to guide the batching of leachate-based garbage reaction aids, and the bottom of the mixing tank and the leachate storage tank supply injection materials to the garbage body injection operation device through pipelines. The landfill is equipped with an intelligent control station that connects the data and control ports of various equipment, and the intelligent control station guides or controls various equipment operations based on the electronic three-dimensional map of the garbage landfill. The control valve, metering pump and pouring pipe group can collect the leachate pumped to the high-level leachate storage tank, and use the height difference to make the leachate flow naturally from the hole into the garbage pile. The landfill is equipped with an intelligent control station that connects the data and control ports of various equipment. The central control console of the intelligent control station presets the electronic three-dimensional map of the landfill. The sampling and detection data of each drilling sampling point are recorded in the electronic three-dimensional map. The central control console forms a three-dimensional map of the injection operation on the electronic three-dimensional map based on the sampling and detection data of the electronic three-dimensional map, which is used to guide the mixing of the mixing tank and the control valve, metering pump and pouring pipe group, the control valve, metering pump and spray pipe rack group, the control valve, high-pressure pump and injection pipe group, and the control valve, high-pressure pump and injection pipe group equipped with the drilling sampler. The operation instructions formed by the calculation of the drilling sampling detection data are marked on the corresponding sampling operation layer area of ​​the electronic three-dimensional map to guide the injection operation. The operation instructions formed by the calculation of the drilling sampling detection data are also used to guide the preparation and modulation of injection agents, especially garbage reaction additives.

[0005] When the borehole sampling detects that the reaction lacks water, the intelligent control will directly take the leachate from the leachate storage tank to carry out humidification injection operation on the sampling layer area; if the borehole sampling detects that the pH deviation of the reaction is too large, the intelligent control will be used to mix the acid-base regulator into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based garbage acid-base reaction auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; When sampling detects that the soil is suitable for transformation, the soil transformation aid is mixed into the leachate in the mixing tank by intelligent control, and the sampling layer area is subjected to leachate-based soil transformation aid injection operation; if the drilling sampling detects that the rock and soil are suitable for transformation, the leachate in the mixing tank is mixed into the rock and soil transformation aid to inject the leachate-based rock and soil transformation aid into the sampling layer area; if the drilling sampling detects that there is a lack of air, the drilling sampling machine is intelligently controlled to form a well pipe, and the sampling layer area is subjected to air injection operation or the sampling layer area is filled with a bulking agent for introducing air. The present invention is a drilling sampling machine that performs drilling sampling on garbage buried bodies in various areas and layers of a landfill. When the sampling analysis result shows that the reaction is imperfect, a leachate-based garbage reaction aid that solves the problem of imperfect reaction is added to the sampling garbage buried body area by a spray pipe rack or a pressure injection pipe. When the sampling analysis result shows that the reaction is up to standard, the original garbage pile becomes a harmless and fertilizer-effective soil optimizer, which can eventually be ideally integrated with the natural environment. Thus, the traditional landfill waste is transformed into a management system with certain fertilizer effect, and is ideally integrated with the natural soil environment, reducing the waste of land resources. Accelerate the digestion, reduction and harmlessness of landfill waste, thus turning the traditional landfill waste into a management system with certain fertilizer effect, and is ideally integrated with the natural soil environment, reducing the waste of land resources. Garbage reaction additives include carbon source supplements, nitrogen source supplements, acid-base adjustment supplements, microbial colony supplements, supplements that are conducive to oxygenation, etc. for accelerating the decomposition of garbage microorganisms; supplements that accelerate the transformation to soil conditions for vegetation growth, organic matter supplements, inorganic element fertilizer supplements, pesticide supplements, nutrient soil supplements, etc.; supplements that accelerate geotechnicalization, such as fly ash, clay supplements, and bottom mud supplements, such as bottom mud supplements, river and lake bottom mud supplements, etc. It has the advantage of effectively realizing the digestion, reduction and harmlessness of landfill waste.

[0006] As an optimization, the injection material includes injecting leachate into the layer area of ​​the garbage body lacking reaction water, and injecting a specific leachate-based garbage reaction aid into the specific layer area of ​​the garbage body as needed; the garbage reaction aid material of the leachate-based garbage reaction aid includes an aid material that can promote the degradation process of garbage microbial biochemical reaction, an aid material that can promote the conversion of garbage into soil, a conversion aid material that can promote the conversion of garbage into rock and soil, and a bulking agent material that is conducive to the introduction of air through the leachate-based garbage reaction aid. It is also possible to place multiple well pipes in the well, attach them to the well pipes for injection and process, continuously lift the well, and then realize layered injection. The upper and lower ports of the well pipe are respectively made with sleeves for the upper and lower ports to be connected in sequence. The sleeves are fixed by threads or by adhesives. The well pipe suitable for introducing air is preferably made with uniformly distributed radial pores.

[0007] As an optimization, the borehole sampler is equipped with a well-forming pipe for use with the drilling hole, which is used to temporarily or permanently form a well pipe in the borehole for injecting leachate and leachate-based garbage reaction additives. The well-forming pipe is a metal well pipe or a sleeve well wall pipe body made of degradable materials that are sequentially cascaded. After multiple well pipes or sleeve well wall pipe bodies form the well wall in the wellbore, they can provide multiple reinjections of leachate, injection of additives, nutrients, etc., and can introduce air appropriately. Multiple well pipes can also be placed in the well, attached to the well pipe for injection and progress, and the well is continuously lifted to achieve layered injection. The upper and lower ports of the well-forming pipe are respectively provided with sleeves for the upper and lower ports to be sequentially sleeved. The sleeves are fixed by threads or by adhesives. The well-forming pipe suitable for introducing air is preferably provided with uniformly distributed radial pores.

[0008] As an optimization, the landfill is built in a natural or artificial ravine, with a downward sloping ditch sandwiched between the two slopes of the ravine, a leachate collection tunnel is set in the center of the downward sloping ditch, and anti-leakage material layers are set in the two slopes of the ravine, the downward sloping ditch and the leachate collection tunnel. The leachate collection tunnel transports leachate to the leachate storage tank on the landfill through a leachate delivery pump pipe. The leachate collection tunnel is U-shaped with an open top, and a leakage support plate is set at the upper mouth of the U-shaped leachate collection tunnel. The U-shaped leachate collection tunnel is provided with a downstream end door for maintenance personnel or intelligent self-propelled maintenance equipment to enter and exit at the downstream end extending out of the landfill. The U-shaped leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe at the downstream end extending out of the landfill. A sunken leachate storage tank is arranged at the downstream end of the U-shaped leachate collection tunnel extending out of the landfill. The sunken leachate storage tank is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe.

[0009] As an optimization, the injection operation device includes any number of the following operation groups to supply injection materials for accelerating the digestion, reduction and harmlessness of landfill garbage; control valve and metering pump and pouring pipe operation group, control valve and metering pump and spray pipe rack operation group, control valve and high-pressure pump and injection pipe operation group, and control valve and high-pressure pump and injection pipe operation group equipped with drilling sampler. The control valve and metering pump and pouring pipe group, the control valve and metering pump and spray pipe rack group, the control valve and high-pressure pump and injection pipe group, and the drilling sampler equipped with the control valve and high-pressure pump and injection pipe group are respectively arranged on the intelligent self-propelled mobile chassis, and the intelligent self-propelled mobile chassis operates under the guidance of the electronic three-dimensional map of the garbage landfill. The self-propelled mobile chassis is provided with an intelligent winch for winding the pouring pipe group, the spray pipe, and the injection pipe as needed. The intelligent control station that connects the data and control ports of each device automatically obtains data from each device, and forms specific industrial control instructions for each device after intelligent calculation. Each device works step by step under the industrial control instructions.

[0010] The landfill waste digestion, reduction and harmless management system for realizing the method of the present invention includes a leachate collection tunnel for collecting leachate at the lowest point of the bottom of the landfill, the leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe, the bottom of the leachate storage tank is connected to the leachate-based garbage reaction aid mixing tank through a control valve and a metering pump pipe, the mixing tank is equipped with a plurality of parallel garbage reaction aid material high-level batching tanks, the top surface of the landfill is provided with a drilling sampler for guiding the batching of leachate-based garbage reaction aids for the lower landfill layer, and the bottom of the mixing tank and the leachate storage tank supply injection materials to the garbage body injection operation device through a pipeline. The landfill is equipped with an intelligent control station that connects the data and control ports of various equipment, and the intelligent control station guides or controls the operation of various equipment based on the electronic three-dimensional map of the garbage landfill. The control valve, metering pump and pouring pipe group can collect the leachate pumped to the high-level leachate storage tank, and use the height difference to make the leachate flow naturally from the hole into the garbage pile. The landfill is equipped with an intelligent control station that connects the data and control ports of each device. The central control console of the intelligent control station presets an electronic three-dimensional map of the landfill, and the sampling and detection data of each drilling sampling point are recorded in the electronic three-dimensional map. The central control console forms a three-dimensional map of the injection operation on the electronic three-dimensional map based on the sampling and detection data of the electronic three-dimensional map, which is used to guide the mixing of the mixing tank and the control valve, metering pump and pouring pipe group, the control valve, metering pump and spray pipe rack group, the control valve, high-pressure pump and injection pipe group, and the control valve, high-pressure pump and injection pipe group equipped with the drilling sampler. The operation instructions formed by the calculation of the drilling sampling detection data are marked on the corresponding sampling operation layer area of ​​the electronic three-dimensional map to guide the injection operation. The operation instructions formed by the calculation of the drilling sampling detection data are also used to guide the preparation and modulation of the injection agent, especially the garbage reaction auxiliary agent.

[0011] When the borehole sampling detects that the reaction lacks water, the intelligent control will directly take the leachate from the leachate storage tank to carry out humidification injection operation on the sampling layer area; if the borehole sampling detects that the pH deviation of the reaction is too large, the intelligent control will be used to mix the acid-base regulator into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based garbage acid-base reaction auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; When sampling detects that the soil is suitable for transformation, the soil transformation aid is mixed into the leachate in the mixing tank by intelligent control, and the sampling layer area is subjected to leachate-based soil transformation aid injection operation; if the drilling sampling detects that the rock and soil are suitable for transformation, the leachate in the mixing tank is mixed into the rock and soil transformation aid to inject the leachate-based rock and soil transformation aid into the sampling layer area; if the drilling sampling detects that there is a lack of air, the drilling sampling machine is intelligently controlled to form a well pipe, and the sampling layer area is subjected to air injection operation or the sampling layer area is filled with a bulking agent for introducing air. The present invention is a drilling sampling machine that performs drilling sampling on garbage buried bodies in various areas and layers of a landfill. When the sampling analysis result shows that the reaction is imperfect, a leachate-based garbage reaction aid that solves the problem of imperfect reaction is added to the sampling garbage buried body area by a spray pipe rack or a pressure injection pipe. When the sampling analysis result shows that the reaction is up to standard, the original garbage pile becomes a harmless and fertilizer-effective soil optimizer, which can eventually be ideally integrated with the natural environment. Thus, the traditional landfill waste is transformed into a management system with certain fertilizer effect, and is ideally integrated with the natural soil environment, reducing the waste of land resources. Accelerate the digestion, reduction and harmlessness of landfill waste, thus turning the traditional landfill waste into a management system with certain fertilizer effect, and is ideally integrated with the natural soil environment, reducing the waste of land resources. Garbage reaction additives include carbon source supplements, nitrogen source supplements, acid-base adjustment supplements, microbial colony supplements, supplements that are conducive to oxygenation, etc. for accelerating the decomposition of garbage microorganisms; supplements that accelerate the transformation to soil conditions for vegetation growth, organic matter supplements, inorganic element fertilizer supplements, pesticide supplements, nutrient soil supplements, etc.; supplements that accelerate geotechnicalization, such as fly ash, clay supplements, and bottom mud supplements, such as bottom mud supplements, river and lake bottom mud supplements, etc. It has the advantage of effectively realizing the digestion, reduction and harmlessness of landfill waste.

[0012] As an optimization, the garbage reaction auxiliary material includes an auxiliary material that can promote the degradation process of garbage microbial biochemical reaction, an auxiliary material that can promote the conversion of garbage into soil, a conversion auxiliary material that can promote the conversion of garbage into rock and soil, and a bulking agent material that is conducive to the introduction of air through the leachate-based garbage reaction auxiliary agent. It is also possible to have multiple well pipes in the well, attach them to the well pipes for injection and processing, continuously lift the well, and then achieve layered injection. The upper and lower ports of the well pipe are respectively made with sleeves for the upper and lower ports to be sleeved in sequence. The sleeves are fixed by threads or by adhesives. The well pipe suitable for introducing air is preferably made with uniformly distributed radial pores.

[0013] As an optimization, the borehole sampler is equipped with a well-forming pipe for use with the drilling hole, which is used to temporarily or permanently form a well pipe in the borehole for injecting leachate and leachate-based garbage reaction additives. The well-forming pipe is a metal well pipe or a sleeve well wall pipe body made of degradable materials that are sequentially cascaded. After multiple well pipes or sleeve well wall pipe bodies form the well wall in the wellbore, they can provide multiple reinjections of leachate, injection of additives, nutrients, etc., and can introduce air appropriately. Multiple well pipes can also be placed in the well, attached to the well pipe for injection and progress, and the well is continuously lifted to achieve layered injection. The upper and lower ports of the well-forming pipe are respectively provided with sleeves for the upper and lower ports to be sequentially sleeved. The sleeves are fixed by threads or by adhesives. The well-forming pipe suitable for introducing air is preferably provided with uniformly distributed radial pores.

[0014] As an optimization, the landfill is built in a natural or artificial ravine, with a downward sloping channel sandwiched between the two slopes of the ravine, a leachate collection tunnel is set in the center of the downward sloping channel, and anti-leakage material layers are set in the two slopes of the ravine, the downward sloping channel and the leachate collection tunnel. The leachate collection tunnel transports leachate to the leachate storage tank on the landfill through a leachate delivery pump pipe. The leachate collection tunnel is U-shaped with an open top, and a leakage support plate is set at the upper mouth of the U-shaped leachate collection tunnel. The U-shaped leachate collection tunnel is provided with a downstream end door for maintenance personnel or intelligent self-propelled maintenance equipment to enter and exit at the downstream end extending out of the landfill. The U-shaped leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe at the downstream end extending out of the landfill. A sunken leachate storage tank is arranged at the downstream end of the U-shaped leachate collection tunnel extending out of the landfill. The sunken leachate storage tank is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe.

[0015] As an optimization, the injection operation device includes any number of the following operation groups to supply the garbage injection material for accelerating the digestion, reduction and harmlessness of landfill garbage: control valve and metering pump and pouring pipe operation group, control valve and metering pump and spray pipe rack operation group, control valve and high-pressure pump and injection pipe operation group, and control valve and high-pressure pump and injection pipe operation group equipped with drilling sampler. The control valve and metering pump and pouring pipe group, the control valve and metering pump and spray pipe rack group, the control valve and high-pressure pump and injection pipe group, and the drilling sampler equipped with the control valve and high-pressure pump and injection pipe group are respectively arranged on the intelligent self-propelled mobile chassis, and the intelligent self-propelled mobile chassis operates under the guidance of the electronic three-dimensional map of the garbage landfill. The self-propelled mobile chassis is provided with an intelligent winch for winding the pouring pipe group, the spray pipe, and the injection pipe as needed. The intelligent control station that connects the data and control ports of each device automatically obtains data from each device, and forms specific industrial control instructions for each device after intelligent calculation. Each device works step by step under the industrial control instructions.

[0016] The present invention is a drilling sampling machine that performs drilling sampling on garbage buried bodies at various levels in various areas of a landfill. When the sampling analysis result shows that the reaction is imperfect, a spray pipe rack or a pressure injection pipe is used to add a leachate-based garbage reaction aid to the sampled garbage buried body area to solve the problem of imperfect reaction. When the sampling analysis result shows that the reaction is up to standard, the original garbage pile becomes a harmless and fertilizer-effective soil optimizer, which can eventually be ideally integrated with the natural environment. That is, the drilling sampling machine performs drilling sampling on garbage buried bodies at various levels in various areas of a landfill. When the sampling analysis result shows that the reaction is imperfect, a spray pipe rack or a pressure injection pipe is used to add the leachate and garbage reaction aid to the sampled garbage buried body area to solve the problem of imperfect reaction. When the sampling analysis result shows that the reaction is terminated, a spray pipe rack or a pressure injection pipe is used to add the leachate and garbage rockization aid to the sampled garbage buried body area. This not only solves the problem of harmless disposal of leachate, but also solves the problem of imperfect regional reaction through leachate and garbage reaction additives, digests and reduces the garbage, and can also seal the garbage body after the reaction by adding nutrient additives and garbage rockization additives to the area where the reaction is completed, thereby achieving harmlessness and appropriate resource utilization at the end of the reaction.

[0017] Accelerate the decomposition and harmlessness of landfill waste, thus turning traditional landfill waste into a fertilizer effect, which is ideally integrated with the natural soil environment and reduces the waste of land resources.

[0018] After adopting the above technical scheme, the method and system for accelerating the digestion, reduction and harmlessness of landfill waste of the present invention have the advantages of being able to effectively achieve the digestion, reduction and harmlessness of landfill waste, transform hazardous waste landfills into useful land, and significantly alleviate the shortage of landfill sites in large and medium-sized cities. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the first implementation mode when the bottom of the mixing tank of the management system for accelerating the digestion, reduction and harmlessness of landfill garbage is connected to a control valve, a metering pump and a spray pipe for realizing the method of the present invention. Figure 2 It is a structural schematic diagram of a second implementation mode when the bottom of a mixing tank of a treatment system for accelerating the digestion, reduction and harmlessness of landfill waste is connected to a control valve, a high-pressure pump and an injection pipe for realizing the method of the present invention. Figure 3 It is a structural schematic diagram of a third implementation mode when the bottom of the mixing tank of the drilling sampler of the management system for accelerating the digestion, reduction and harmlessness of landfill garbage is connected to a control valve, a high-pressure pump and an injection pipe. DETAILED DESCRIPTION

[0020] The method for accelerating the digestion, reduction and harmlessness of landfill garbage of the present invention comprises the following steps: a leachate collection tunnel for collecting leachate is arranged at the lowest point at the bottom of the landfill, and leachate is transported to a leachate storage tank on the landfill through a leachate transport pump pipe; the bottom of the leachate storage tank quantitatively transports base leachate to a leachate-based garbage reaction auxiliary agent mixing tank through a control valve and a metering pump pipe; a plurality of parallel garbage reaction auxiliary agent high-level batching tanks distribute garbage reaction auxiliary agent to the mixing tank in proportion as required; a drilling sampler for the lower landfill layer arranged on the top surface of the landfill is used to guide the batching of leachate-based garbage reaction auxiliary agent; and the mixing tank and the bottom of the leachate storage tank supply injection material to a garbage body injection operation device through a pipeline. The injection operation device includes any number of the following operation groups to supply injection materials for accelerating the digestion, reduction and harmlessness of landfill garbage: control valve, metering pump and pouring pipe operation group, control valve, metering pump and spray pipe rack operation group, control valve, high-pressure pump and injection pipe operation group, and control valve, high-pressure pump and injection pipe operation group for drilling samplers. The landfill is equipped with an intelligent control station that connects the data and control ports of various equipment. The intelligent control station guides or controls the operation of various equipment based on the electronic three-dimensional map of the landfill. The control valve, metering pump and pouring pipe group can collect the leachate pumped to the high-level leachate storage tank, and use the height difference to make the leachate flow naturally from the hole into the garbage pile. The landfill is equipped with an intelligent control station that connects the data and control ports of each device. The central control console of the intelligent control station presets an electronic three-dimensional map of the landfill, and the sampling and detection data of each drilling sampling point are recorded in the electronic three-dimensional map. The central control console forms a three-dimensional map of the injection operation on the electronic three-dimensional map based on the sampling and detection data of the electronic three-dimensional map, which is used to guide the mixing of the mixing tank and the control valve, metering pump and pouring pipe group, the control valve, metering pump and spray pipe rack group, the control valve, high-pressure pump and injection pipe group, and the control valve, high-pressure pump and injection pipe group equipped with the drilling sampler. The operation instructions formed by the calculation of the drilling sampling detection data are marked on the corresponding sampling operation layer area of ​​the electronic three-dimensional map to guide the injection operation. The operation instructions formed by the calculation of the drilling sampling detection data are also used to guide the preparation and modulation of the injection agent, especially the garbage reaction auxiliary agent.

[0021] When the borehole sampling detects that the reaction lacks water, the intelligent control will directly take the leachate from the leachate storage tank to carry out humidification injection operation on the sampling layer area; if the borehole sampling detects that the pH deviation of the reaction is too large, the intelligent control will be used to mix the acid-base regulator into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based garbage acid-base reaction auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; When sampling detects that the soil is suitable for transformation, the soil transformation aid is mixed into the leachate in the mixing tank by intelligent control, and the sampling layer area is subjected to leachate-based soil transformation aid injection operation; if the drilling sampling detects that the rock and soil are suitable for transformation, the leachate in the mixing tank is mixed into the rock and soil transformation aid to inject the leachate-based rock and soil transformation aid into the sampling layer area; if the drilling sampling detects that there is a lack of air, the drilling sampling machine is intelligently controlled to form a well pipe, and the sampling layer area is subjected to air injection operation or the sampling layer area is filled with a bulking agent for introducing air. The present invention is a drilling sampling machine that performs drilling sampling on garbage buried bodies in various areas and layers of a landfill. When the sampling analysis result shows that the reaction is imperfect, a leachate-based garbage reaction aid that solves the problem of imperfect reaction is added to the sampling garbage buried body area by a spray pipe rack or a pressure injection pipe. When the sampling analysis result shows that the reaction is up to standard, the original garbage pile becomes a harmless and fertilizer-effective soil optimizer, which can eventually be ideally integrated with the natural environment. Thus, the traditional landfill waste is transformed into a management system with certain fertilizer effect, ideally integrated with the natural soil environment, and reducing the waste of land resources. Accelerate the digestion, reduction and harmlessness of landfill waste, thus turning the traditional landfill waste into a management system with certain fertilizer effect, ideally integrated with the natural soil environment, and reducing the waste of land resources. Garbage reaction additives include carbon source supplements, nitrogen source supplements, acid-base adjustment supplements, microbial colony supplements, supplements that are conducive to oxygenation, etc. for accelerating the decomposition of garbage microorganisms; supplements that accelerate the transformation to soil conditions for vegetation growth, organic matter supplements, inorganic element fertilizer supplements, pesticide supplements, nutrient soil supplements, etc.; supplements that accelerate geotechnicalization, such as fly ash, clay supplements, and bottom mud supplements, such as bottom mud supplements, river and lake bottom mud supplements, etc. It has the advantage of effectively realizing the digestion, reduction and harmlessness of landfill waste.

[0022] The injection material includes injecting leachate into the layer area of ​​the garbage body lacking reaction water, and injecting specific leachate-based garbage reaction aids into specific layers of the garbage body as needed; the garbage reaction aid material of the leachate-based garbage reaction aid includes an aid material that can promote the degradation process of garbage microbial biochemical reaction, an aid material that can promote the conversion of garbage into soil, a conversion aid material that can promote the conversion of garbage into rock and soil, and a bulking agent material that is conducive to the introduction of air through the leachate-based garbage reaction aid. It is also possible to place multiple well pipes in the well, attach them to the well pipes for injection and process, continuously lift the well, and then realize layered injection. The upper and lower ports of the well pipe are respectively made with sleeves for the upper and lower ports to be connected in sequence. The sleeves are fixed by threads or by adhesives. The well pipe suitable for introducing air is preferably made with uniformly distributed radial pores.

[0023] The borehole sampling machine is equipped with a well-forming pipe for use with the drilling hole, which is used to temporarily or permanently form a well pipe in the borehole for injecting leachate and leachate-based garbage reaction additives. The well-forming pipe is a metal well pipe or a sleeve well wall pipe body made of degradable materials that are sequentially connected. After multiple well pipes or sleeve well wall pipe bodies form the well wall in the wellbore, they can be used to reinject leachate multiple times, inject additives, nutrients, etc., and introduce air appropriately. Multiple well pipes can also be placed in the well, attached to the well pipe for injection and progress, and the well is continuously lifted to achieve layered injection. The upper and lower ports of the well-forming pipe are respectively provided with sleeves for the upper and lower ports to be sequentially sleeved. The sleeves are fixed by threads or by adhesives. The well-forming pipe suitable for introducing air is preferably provided with uniformly distributed radial pores.

[0024] The landfill is built in a natural or artificial ravine, with a downward sloping channel sandwiched between the two slopes of the ravine, a leachate collection tunnel arranged in the center of the downward sloping channel, and anti-leakage material layers arranged on the two slopes of the ravine, the downward sloping channel and the leachate collection tunnel. The leachate collection tunnel delivers leachate to the leachate storage tank on the landfill through a leachate delivery pump pipe. The leachate collection tunnel is U-shaped with an open top, a leakage support plate is arranged at the upper mouth of the U-shaped leachate collection tunnel, a downstream end door for maintenance personnel or intelligent self-propelled maintenance equipment to enter and exit is arranged at the downstream end extending out of the landfill, and the U-shaped leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe at the downstream end extending out of the landfill. A sunken leachate storage tank is arranged at the downstream end of the U-shaped leachate collection tunnel extending out of the landfill. The sunken leachate storage tank is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe.

[0025] The control valve, metering pump and pouring pipe group, the control valve, metering pump and spray pipe rack group, the control valve, high-pressure pump and injection pipe group, and the drilling sampler equipped with the control valve, high-pressure pump and injection pipe group are respectively arranged on the intelligent self-propelled mobile chassis, which operates under the guidance of the electronic three-dimensional map of the landfill. The self-propelled mobile chassis is provided with an intelligent winch for winding and placing the pouring pipe group, spray pipe, and injection pipe as needed. The intelligent control station connected to the data and control ports of each device automatically obtains data from each device, and forms specific industrial control instructions for each device after intelligent calculation. Each device works step by step under the industrial control instructions.

[0026] As shown in the figure, the management system for accelerating the digestion, reduction and harmlessness of landfill garbage for realizing the method of the present invention includes a leachate collection tunnel 2 for collecting leachate arranged at the lowest point of the bottom of the landfill 1, the leachate collection tunnel 2 is connected to the leachate storage tank 4 on the landfill 1 through a leachate delivery pump pipe 3, the bottom of the leachate storage tank 4 is connected to the leachate-based garbage reaction auxiliary agent mixing tank 5 through a control valve and a metering pump pipe, the mixing tank 5 is equipped with a plurality of parallel garbage reaction auxiliary agent high-level batching tanks 6, the top surface of the landfill 1 is provided with a drilling sampler 7 for guiding the batching of leachate-based garbage reaction auxiliary agents for the lower landfill layer, and the mixing tank 5 and the bottom of the leachate storage tank 4 supply injection materials to the garbage body injection operation device through pipelines. The injection operation device includes any number of the following operation groups to supply injection materials for accelerating the digestion, reduction and harmlessness of landfill garbage: control valve, metering pump and pouring pipe operation group, control valve, metering pump and spray pipe rack operation group, control valve, high-pressure pump and injection pipe operation group, and control valve, high-pressure pump and injection pipe operation group equipped with a borehole sampler. The landfill is equipped with an intelligent control station that connects the data and control ports of each device. The intelligent control station guides or controls the operation of various equipment based on the electronic three-dimensional map of the landfill. The control valve, metering pump and pouring pipe group can collect the leachate pumped to the high-level leachate storage tank 4, and use the height difference to make the leachate flow naturally into the garbage pile from the hole created by the borehole sampler 7. The landfill is equipped with an intelligent control station that connects the data and control ports of each device. The central control console of the intelligent control station presets an electronic three-dimensional map of the landfill, and the sampling and detection data of each drilling sampling point are recorded in the electronic three-dimensional map. The central control console forms a three-dimensional map of the injection operation based on the sampling and detection data of the electronic three-dimensional map, which is used to guide the mixing of the mixing tank 5 and the injection operation of the control valve, metering pump and pouring pipe group, the control valve, metering pump and spray pipe rack group, the control valve, high-pressure pump and injection pipe group, and the control valve, high-pressure pump and injection pipe group equipped with the drilling sampler. The operation instructions formed by the calculation of the drilling sampling detection data are marked on the corresponding sampling operation layer area of ​​the electronic three-dimensional map to guide the injection operation. The operation instructions formed by the calculation of the drilling sampling detection data are also used to guide the preparation and modulation of the injection agent, especially the garbage reaction auxiliary agent.

[0027] When the borehole sampling detects that the reaction lacks water, the intelligent control will directly take the leachate from the leachate storage tank to carry out humidification injection operation on the sampling layer area; if the borehole sampling detects that the pH deviation of the reaction is too large, the intelligent control will be used to mix the acid-base regulator into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based garbage acid-base reaction auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; if the borehole sampling detects that a certain reaction raw material is lacking, the intelligent control will be used to mix a certain reaction raw material into the leachate in the mixing tank, and the sampling layer area will be injected with the leachate-based reaction raw material auxiliary agent; When sampling detects that the soil is suitable for conversion, the system intelligently controls the soil conversion aid to be mixed into the leachate in the mixing tank, and the sampling layer area is injected with the leachate-based soil conversion aid; if drilling sampling detects that the rock and soil are suitable for conversion, the system intelligently controls the leachate in the mixing tank to be mixed with the rock and soil conversion aid, and the sampling layer area is injected with the leachate-based rock and soil conversion aid; if drilling sampling detects that there is a lack of air, the drilling sampling machine is intelligently controlled to form the well pipe, and the sampling layer area is injected with air or a bulking agent is added to the sampling layer area to introduce air. Garbage reaction additives include carbon source supplements, nitrogen source supplements, acid-base adjustment supplements, microbial colony supplements, oxygen-enhancing supplements, etc., which are used to accelerate the microbial decomposition of garbage; supplements that accelerate the conversion to soil conditions for vegetation growth, organic matter supplements, inorganic element fertilizer supplements, pesticide supplements, nutrient soil supplements, etc.; supplements that accelerate rock and soil formation, such as fly ash, clay supplements, and bottom mud supplements, such as seabed mud supplements and river and lake mud supplements.

[0028] The garbage reaction auxiliary material includes auxiliary materials that can promote the degradation process of garbage microbial biochemical reaction, auxiliary materials that can promote the conversion of garbage into soil, conversion auxiliary materials that can promote the conversion of garbage into rock and soil, and bulking agents that are conducive to the introduction of air through leachate-based garbage reaction auxiliary materials.

[0029] The borehole sampling machine 7 is equipped with a well-forming pipe used for drilling holes, which is used to temporarily or permanently form a well pipe for injecting leachate and leachate-based garbage reaction additives in the borehole. The well-forming pipe is a metal well pipe or a sleeve well wall pipe body made of degradable materials that are sequentially cascaded. After multiple well pipes or sleeve well wall pipe bodies form the well wall in the borehole, they can be used for multiple reinjections of leachate, injection of additives, nutrients, etc., and appropriate introduction of air. It is also possible to place multiple well pipes in the well, attach them to the well pipe for injection and progress, continuously lift the well, and then achieve layered injection. The upper and lower ports of the well-forming pipe are respectively provided with sleeves for the upper and lower ports to be sleeved in sequence. The sleeves are fixed by threads or by adhesives. The well-forming pipe suitable for introducing air is preferably provided with uniformly distributed radial pores.

[0030] The landfill 1 is built in a natural or artificial ravine, with a downward sloping channel sandwiched between the two slopes of the ravine. A leachate collection tunnel 2 is arranged in the center of the downward sloping channel. The two slopes of the ravine, the downward sloping channel and the leachate collection tunnel 2 are provided with an anti-leakage material layer 11. The leachate collection tunnel 2 transports leachate to the leachate storage tank 4 on the landfill 1 through a leachate delivery pump pipe 3. The leachate collection tunnel 2 is U-shaped with an open top. A leakage support plate 21 is arranged at the upper mouth of the U-shaped leachate collection tunnel 2. A downstream end door for maintenance personnel or intelligent self-propelled maintenance equipment to enter and exit is arranged at the downstream end of the U-shaped leachate collection tunnel 2 extending out of the landfill 1. The U-shaped leachate collection tunnel 2 is connected to the leachate storage tank 4 on the landfill 1 through a leachate delivery pump pipe 3 at the downstream end extending out of the landfill 1. The U-shaped leachate collecting tunnel 2 is provided with a sinking leachate storage tank at the downstream end extending out of the landfill, and the sinking leachate storage tank is connected to the leachate storage tank 4 on the landfill through a leachate delivery pump pipe 3.

[0031] The control valve, metering pump and pouring pipe group, the control valve, metering pump and spray pipe rack group, the control valve, high-pressure pump and injection pipe group, and the drilling sampler equipped with the control valve, high-pressure pump and injection pipe group are respectively arranged on the intelligent control self-propelled mobile chassis. The self-propelled mobile chassis is provided with an intelligent control winch for winding and placing the pouring pipe group, spray pipe, and injection pipe as needed. The intelligent control station connected to the data and control ports of each device automatically obtains data from each device, and forms specific industrial control instructions for each device after intelligent calculation. Each device works step by step under the industrial control instructions.

[0032] Embodiment 1, as Figure 1 As shown, the difference between the method and system for accelerating the digestion, reduction and harmlessness of landfill waste of the present invention and other embodiments is that the bottom of the mixing tank 5 is connected to a control valve, a metering pump and a spray pipe group.

[0033] Embodiment 2, as Figure 2 As shown, the difference between the method and system for accelerating the digestion, reduction and harmlessness of landfill waste of the present invention and other embodiments is that the bottom of the mixing tank 5 is connected to a control valve, a high-pressure pump and a pressure injection pipe group.

[0034] Embodiment three, as Figure 3 As shown, the difference between the method and system for accelerating the digestion, reduction and harmlessness of landfill waste of the present invention and other embodiments is that the bottom of the drilling sampler 7 mixing tank 5 is connected to the control valve and the high-pressure pump and injection pipe group.

[0035] That is, the drilling sampler conducts drilling sampling on the garbage buried bodies in each area and each layer of the landfill. When the sampling analysis result shows that the reaction is imperfect, the leachate and garbage reaction aids that solve the imperfect reaction problem are added to the sampled garbage buried body area by using a spray pipe rack or a pressure injection pipe. When the sampling analysis result shows that the reaction is finished, the leachate and garbage rockization aids are added to the sampled garbage buried body area by using a spray pipe rack or a pressure injection pipe. This not only solves the problem of harmless disposal of leachate, but also solves the problem of imperfect regional reaction through leachate and garbage reaction aids, digests and reduces the amount of garbage, and can also seal the post-reaction garbage body by adding nutrient aids and garbage rockization aids to the area where the reaction is finished, so as to achieve harmlessness and moderate resource utilization at the end of the reaction. This transforms traditional landfill garbage into a management system with certain fertilizer effects, ideally integrated with the natural soil environment, and reducing the waste of land resources. Accelerate the digestion, reduction and harmlessness of landfill waste, so that traditional landfill waste can be transformed into a management system with certain fertilizer effects and ideally integrated with the natural soil environment, thereby reducing the waste of land resources.

[0036] In summary, the method and system for accelerating the degradation, reduction and harmlessness of landfill waste of the present invention have the advantages of being able to effectively achieve the degradation, reduction and harmlessness of landfill waste, transform hazardous waste landfills into useful land, and significantly alleviate the shortage of landfill sites in large and medium-sized cities.

Claims

1. A method for accelerating the digestion, reduction and harmlessness of landfill waste, characterized in that The leachate collection tunnel for collecting leachate set at the lowest point at the bottom of the landfill transports the leachate to the leachate storage tank on the landfill through the leachate delivery pump pipe, and the leachate storage tank quantitatively transports the base material leachate to the leachate-based garbage reaction aid mixing tank, and multiple parallel garbage reaction aid material high-level batching tanks distribute garbage reaction aid materials to the mixing tank in proportion as needed; the drilling sampler set on the top surface of the landfill for the lower landfill layer is used to guide the batching of leachate-based garbage reaction aids, and the bottom of the mixing tank and the leachate storage tank supply injection materials to the garbage body injection operation device through pipelines; The landfill is built in a natural or artificial ravine, with a downward sloping ditch sandwiched between the two slopes of the ravine, a leachate collection tunnel arranged in the center of the downward sloping ditch, anti-leakage material layers arranged on the two slopes of the ravine, the downward sloping ditch and the leachate collection tunnel, and the leachate collection tunnel transports leachate to a leachate storage tank on the landfill through a leachate delivery pump pipe; the leachate collection tunnel is U-shaped with an open top, a leakage support plate is arranged at the upper mouth of the U-shaped leachate collection tunnel, a downstream end door for maintenance personnel or intelligent self-propelled maintenance equipment to enter and exit is arranged at the downstream end of the U-shaped leachate collection tunnel extending out of the landfill, and the U-shaped leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe at the downstream end extending out of the landfill; the U-shaped leachate collection tunnel is provided with a sunken leachate storage tank at the downstream end extending out of the landfill.

2. The method for accelerating the decomposition, reduction and harmlessness of landfill waste according to claim 1 is characterized in that The injection material includes injecting leachate into the layer area of ​​the garbage body lacking reaction water, and injecting specific leachate-based garbage reaction additives into specific layers of the garbage body as needed; the garbage reaction additive material of the leachate-based garbage reaction additive includes an additive material that can promote the degradation process of garbage microbial biochemical reactions, an additive material that can promote the conversion of garbage into soil, a conversion additive material that can promote the conversion of garbage into rock and soil, and a bulking agent material that is conducive to the introduction of air through the leachate-based garbage reaction additive.

3. The method for accelerating the decomposition, reduction and harmlessness of landfill waste according to claim 1 is characterized in that The borehole sampling machine is equipped with a well-forming pipe used for drilling and forming a hole, which is used to temporarily or permanently form a well pipe in the borehole for injecting leachate and leachate-based garbage reaction additives.

4. The method for accelerating the degradation and harmlessness of landfill waste according to claim 1 is characterized in that The injection operation equipment includes any number of the following operation groups to supply injection materials for accelerating the digestion, reduction and harmlessness of landfill waste; control valve and metering pump and pouring pipe operation group, control valve and metering pump and spray pipe rack operation group, control valve and high-pressure pump and injection pipe operation group, and control valve and high-pressure pump and injection pipe operation group for drilling samplers.

5. A system for implementing the method for accelerating the degradation, reduction and harmlessness of landfill waste as described in claim 1, characterized in that The invention comprises a leachate collection tunnel for collecting leachate at the lowest point of the bottom of the landfill, the leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe, the bottom of the leachate storage tank is connected to the leachate-based garbage reaction aid mixing tank through a control valve and a metering pump pipe, the mixing tank is equipped with a plurality of parallel garbage reaction aid material high-level batching tanks, a drilling sampler for guiding the batching of leachate-based garbage reaction aid for the lower landfill layer is arranged on the top surface of the landfill, and the mixing tank and the bottom of the leachate storage tank supply injection materials to the garbage body injection operation device through pipelines; The landfill is built in a natural or artificial ravine, with a downward sloping ditch sandwiched between the two slopes of the ravine, a leachate collection tunnel arranged in the center of the downward sloping ditch, anti-leakage material layers arranged on the two slopes of the ravine, the downward sloping ditch and the leachate collection tunnel, and the leachate collection tunnel transports leachate to a leachate storage tank on the landfill through a leachate delivery pump pipe; the leachate collection tunnel is U-shaped with an open top, a leakage support plate is arranged at the upper mouth of the U-shaped leachate collection tunnel, a downstream end door for maintenance personnel or intelligent self-propelled maintenance equipment to enter and exit is arranged at the downstream end of the U-shaped leachate collection tunnel extending out of the landfill, and the U-shaped leachate collection tunnel is connected to the leachate storage tank on the landfill through a leachate delivery pump pipe at the downstream end extending out of the landfill; the U-shaped leachate collection tunnel is provided with a sunken leachate storage tank at the downstream end extending out of the landfill.

6. The system according to claim 5, characterized in that The garbage reaction auxiliary material includes auxiliary materials that can promote the degradation process of garbage microbial biochemical reaction, auxiliary materials that can promote the conversion of garbage into soil, conversion auxiliary materials that can promote the conversion of garbage into rock and soil, and bulking agents that are conducive to the introduction of air through leachate-based garbage reaction auxiliary materials.

7. The system according to claim 5, characterized in that The borehole sampling machine is equipped with a well-forming pipe used for drilling and forming a hole, which is used to temporarily or permanently form a well pipe in the borehole for injecting leachate and leachate-based garbage reaction additives.

8. The system according to claim 5, characterized in that The injection operation equipment includes any number of the following operation groups to supply injection materials for accelerating the digestion, reduction and harmlessness of landfill waste; control valve and metering pump and pouring pipe operation group, control valve and metering pump and spray pipe rack operation group, control valve and high-pressure pump and injection pipe operation group, and control valve and high-pressure pump and injection pipe operation group for drilling samplers.

Images