CN113546951A - Landfill treatment and recycling method and system suitable for hydrogen energy development and utilization - Google Patents
Landfill treatment and recycling method and system suitable for hydrogen energy development and utilization Download PDFInfo
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- CN113546951A CN113546951A CN202110787114.5A CN202110787114A CN113546951A CN 113546951 A CN113546951 A CN 113546951A CN 202110787114 A CN202110787114 A CN 202110787114A CN 113546951 A CN113546951 A CN 113546951A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000001257 hydrogen Substances 0.000 title claims abstract description 100
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000004064 recycling Methods 0.000 title claims description 25
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 137
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 238000004519 manufacturing process Methods 0.000 claims description 31
- 230000029087 digestion Effects 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 18
- 239000010865 sewage Substances 0.000 claims description 17
- 239000007791 liquid phase Substances 0.000 claims description 16
- 239000007790 solid phase Substances 0.000 claims description 16
- 238000005984 hydrogenation reaction Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 14
- 238000005868 electrolysis reaction Methods 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 11
- 238000005191 phase separation Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000012071 phase Substances 0.000 claims description 7
- 238000010248 power generation Methods 0.000 claims description 7
- 238000009272 plasma gasification Methods 0.000 claims description 4
- 239000010815 organic waste Substances 0.000 claims description 3
- 239000010791 domestic waste Substances 0.000 claims description 2
- 238000005067 remediation Methods 0.000 claims 6
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000010806 kitchen waste Substances 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract 2
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- 239000000149 chemical water pollutant Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000003473 refuse derived fuel Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000001728 nano-filtration Methods 0.000 description 1
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- 238000007254 oxidation reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B1/00—Dumping solid waste
- B09B1/004—Covering of dumping sites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/08—Production of synthetic natural gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B13/00—Recovery of fats, fatty oils or fatty acids from waste materials
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/123—Heating the gasifier by electromagnetic waves, e.g. microwaves
- C10J2300/1238—Heating the gasifier by electromagnetic waves, e.g. microwaves by plasma
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a landfill treatment and cyclic utilization method and a landfill treatment and cyclic utilization system suitable for hydrogen energy development and utilization, which belong to the technical field of hydrogen energy and environmental protection, take hydrogen energy development and utilization as a core, take solid waste such as domestic garbage, sludge, kitchen waste and the like to be co-disposed, take advanced agricultural comprehensive development as a bright spot, and take clean energy output such as solar photovoltaic, hydrogen energy and the like as a profit point, so as to improve the service life of a landfill, increase the self-sufficiency of the energy of the landfill, and integrally change the landfill from an energy input place to a city comprehensive energy output place, thereby thoroughly eliminating the 'temporary avoidance effect' carried by the traditional landfill and improving the value of the land resources of the landfill.
Description
Technical Field
The invention belongs to the technical field of hydrogen energy and environmental protection, and particularly relates to a landfill treatment and recycling method and system suitable for hydrogen energy development and utilization.
Background
The construction of the landfill sites in China is started from the 20 th century and the 80 th century, and in the beginning, all the landfill sites are non-sanitary landfill sites due to the lack of technology and capital, and are mainly concentrated in large and medium-sized cities. After 2000 years, the sanitary landfill treatment capacity of domestic garbage in China is continuously increased, and the landfill construction is gradually transited to the development direction of large and medium high-standard landfill from the small landfill at the beginning stage. At present, the landfill of domestic garbage still accounts for 70-80% of the quantity of harmless facilities, and the treatment of most domestic garbage in cities is mainly sanitary landfill. The garbage accumulated in China over 60 hundred million tons throughout the year occupies more than 300 million mu of land, 653 city cities in the country are surrounded by two thirds of the garbage, nearly 2000 sanitary landfill sites in cities and towns in the country (the cities and the counties do not contain built towns) have nearly 50% of full-load operation, about half of the landfill sites have nearly 100% of full-load operation, and the treatment requirement of the storage garbage landfill sites is gradually identified. Therefore, the landfill site is taken as a domestic garbage end treatment mode in China, and plays an indispensable important role in urban and rural domestic garbage disposal all the time. However, as the landfill time increases, a large amount of old landfill stocks are to be sealed and decommissioned. In addition, due to historical and human factors, a great number of simple landfill sites or irregular landfill sites exist in China, the landfill sites have the problems of exposed stacking of garbage, generation of a large amount of mosquitoes, serious pollution of landfill leachate, random discharge of polluted gas and the like, serious pollution threats are caused to soil, underground water and the like, explosion hidden dangers are caused by irregular accumulation of landfill gas, and the like, so that the simple or irregular landfill site management is urgent.
At present, the main scheme for treating the refuse landfill is refuse reclamation, for example, patents CN10404922A and CN107116083A propose screening the refuse, and separating out metal, glass and combustible substances in the refuse for respective utilization; if the patent CN110330996A, garbage materials are cracked by a pyrolysis furnace and then are utilized; for example, patent CN104976622A uses advanced plasma fusion technology to treat the high calorific value part of garbage after sorting the primary raw materials, so as to convert it into synthesis gas; for example, patent CN109821852A provides a method for using a landfill site in a partition mode on the basis of garbage sorting and utilization, so as to reduce the environmental risk of the landfill site and improve the utilization efficiency of the landfill site; for example, patent CN107497825A discloses that the collection and utilization of landfill gas is increased before the solid waste is recycled, so as to reduce the treatment period of the waste in the landfill.
However, none of these patent solutions has developed and utilized various resources of the landfill as a whole, and especially, there is a lack of effective utilization of the land resources of the landfill itself. The landfill and the surrounding land have low value and rare population. This provides convenience for the construction of the hydrogen station. In addition, the processes of garbage clearing, transferring and transferring account for about 30% of the whole garbage disposal cost, and with the upgrade of the sanitation service industry and the reduction of the price of new energy sanitation vehicles for garbage transferring, the new energy sanitation vehicles are supplied to a hydrogen station built in a garbage landfill site, so that the problem of hydrogen going out is solved, and the local hydrogen energy industry chain can be upgraded. The photovoltaic power generation system constructed by using the idle land resources of the landfill can improve the land utilization rate, and the technology is mature, and is a main trend of resource recycling at home and abroad. Photovoltaic energy stations are built in Shanghai old port refuse landfill, Beijing Liulinn refuse landfill and Shenyang Daxin refuse landfill, but the photovoltaic power generation power output is unstable, the grid-connected utilization condition is poor, the hydrogen prepared by the electric power of the landfill photovoltaic power station can not only absorb the generated electric power, but also absorb tail water generated in a refuse leachate treatment workshop and surface runoff water of a landfill area.
Disclosure of Invention
In view of the above, in order to solve the above problems in the prior art, the present invention aims to provide a method and a system for landfill treatment and recycling, which are suitable for hydrogen energy development and utilization, so as to achieve the purpose of changing the "temporary" effect of landfill land resources into the "temporary" effect, thereby improving the value of landfill land resources.
The technical scheme adopted by the invention is as follows: a landfill treatment and recycling method suitable for hydrogen energy development and utilization comprises the following steps:
respectively building a garbage disposal station and a hydrogenation station in a landfill site;
the garbage disposal station adapts corresponding disposal processes according to different types of garbage disposed by the garbage disposal station to prepare hydrogen and/or auxiliary products, supplies the hydrogen into the hydrogenation station and effectively utilizes the auxiliary products.
Further, the garbage disposal station is one or a combination of a stale garbage disposal station, a domestic garbage disposal station and an organic garbage disposal station.
Further, the garbage disposal stations are a stale garbage disposal station and a domestic garbage disposal station;
the stale refuse treatment station generates stale refuse and landfill gas through a refuse landfill treatment process, and stores the landfill gas into a methane tank;
garbage and stale garbage in the domestic garbage treatment station are subjected to garbage drying and garbage sorting to produce garbage derived fuel, and the garbage derived fuel is subjected to hydrogen production through a plasma gasification process or is directly sold.
Further, the garbage disposal station is an organic garbage disposal station, and liquid-phase garbage and solid-phase garbage are separated out by the organic garbage disposal station through a bin;
wherein, the liquid phase garbage is separated into an oil phase product, a solid phase product and a liquid phase product through three-phase separation, and the oil phase product is sold as waste oil;
and respectively producing biogas and biogas residues by the solid-phase garbage, the solid-phase products and the liquid-phase products through an anaerobic digestion process, and storing the biogas into a biogas cabinet.
Further, the method further comprises:
and constructing an agricultural greenhouse in the landfill site, wherein the agricultural planting in the agricultural greenhouse is applied with the biogas residues in an auxiliary manner, and agricultural products are produced through the agricultural planting.
Further, the method further comprises:
a solar photovoltaic power station is built in a landfill site and supplies power for agricultural planting through the solar photovoltaic power station, surplus electric energy is supplied to a water electrolysis hydrogen production process, and hydrogen produced by the water electrolysis hydrogen production process is supplied to a hydrogen station.
Further, the method further comprises:
a leachate treatment station is built in a landfill, impurity-free water generated by the leachate treatment station through a sewage treatment process is supplied to an electrolytic water hydrogen production process, and methane generated by the sewage treatment process is supplied to a methane cabinet.
Further, after the biogas of the biogas cabinet is purified by a biogas purification process, hydrogen is prepared by a methane hydrogen production process and supplied to a hydrogenation station, or cogeneration is realized by biogas power generation.
The invention also provides a landfill treatment and recycling system suitable for hydrogen energy development and utilization, which comprises: a stale refuse treatment station, a domestic refuse treatment station, an organic refuse treatment station, a hydrogenation station and a methane tank;
the stale refuse treatment station is connected to the biogas cabinet through a landfill gas conveying pipe;
the household garbage treatment station is sequentially connected with a garbage drying device and a garbage sorting device, and the garbage drying device is connected with the aged garbage treatment station through an aged garbage transmission device;
the organic garbage treatment station is connected with a storage bin, the storage bin is respectively connected with a three-phase separation device and an anaerobic digestion device, the three-phase separation device is connected with the anaerobic digestion device, and the anaerobic digestion device is communicated to the methane cabinet;
the methane tank is connected with a methane purification device, and the methane purification device is connected to the hydrogen adding station.
Further, the system further comprises: the system comprises an agricultural greenhouse, a solar photovoltaic power station and a leachate treatment station, wherein the agricultural greenhouse is connected to anaerobic digestion equipment through biogas residue transportation equipment and is connected to the solar photovoltaic power station through a power transmission circuit;
the solar photovoltaic power station is connected with water electrolysis hydrogen production equipment, and the water electrolysis hydrogen production equipment is communicated to the hydrogenation station;
the leachate treatment station is connected with sewage treatment equipment, the sewage treatment equipment is connected to electrolyzed water hydrogen production equipment through a water outlet pipeline, and the sewage treatment equipment is connected to a methane cabinet through a methane pipeline.
The invention has the beneficial effects that:
1. by adopting the landfill treatment and recycling method and system suitable for hydrogen energy development and utilization, which are provided by the invention, a comprehensive industrial park development scheme which takes hydrogen energy development and utilization as a core, takes solid waste such as domestic garbage, sludge, kitchen waste and the like as a basis, takes advanced agricultural comprehensive development as a bright spot and takes clean energy such as solar photovoltaic, hydrogen energy and the like as a profit spot can be changed, and the output of energy and material flow of the traditional garbage landfill, which is changed from energy and material flow input, can be changed.
2. By adopting the landfill treatment and recycling method and system suitable for hydrogen energy development and utilization, which are provided by the invention, the hydrogen is produced by utilizing the dominant resources of the landfill, and the hydrogen energy and the organic agricultural products are output outwards, so that the service life of the landfill is prolonged, the energy self-sufficiency rate of the landfill is increased, and the landfill is changed into a city comprehensive energy output place from an energy input place on the whole, so that the 'avoidance effect' of the traditional landfill is thoroughly eliminated, and the value of the land resources of the landfill is improved.
Drawings
FIG. 1 is a schematic diagram of the working flow of the landfill treatment and recycling method suitable for hydrogen energy development and utilization provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the drawings in the embodiments are used for clearly and completely describing the technical scheme in the embodiments of the invention, and obviously, the described embodiments are a part of the embodiments of the invention, but not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
With the rapid increase of domestic garbage amount in China, especially the increasing requirements of urban residents on the surrounding environment, the site selection of the sanitary landfill in China becomes an important elbow for the development of domestic garbage. Therefore, the domestic garbage comprehensive treatment park with the characteristics of intensive and efficient land use becomes an important tool for solving the problem of difficult land use for site selection of the refuse landfill.
The ecological industrial park of the urban comprehensive energy is organized according to ecological economy and knowledge economy rules and based on the efficient utilization of hydrogen energy, solar energy and garbage established by the special site of the refuse landfill, and the ecological industrial park which realizes the comprehensive utilization of resources and the sustainable development can obtain the scale effect and the synergistic effect by the aid of a plurality of construction contents of the ecological industrial park of the urban comprehensive energy.
Under the influence of factors such as 'proximity effect' and the like, the refuse landfill has historical and natural site selection advantages in the site selection of projects such as hydrogenation, hydrogen production, household garbage treatment, kitchen garbage treatment, sludge treatment and the like. The resource utilization maximization is formed by depending on the existing regional traffic conditions and garbage collection and transportation channels of the landfill. And the ecological agriculture planting is adopted to realize the minimization of environmental cost, the optimization of core industry and the ecological landscape space.
Based on the above concept, the present embodiment specifically provides a landfill treatment and recycling method suitable for hydrogen energy development and utilization, which organically combines comprehensive resource utilization and ecological agriculture development to create a municipal comprehensive energy plant from a landfill.
The method is a landfill comprehensive energy industry park taking hydrogen energy development and utilization as a core, and mainly comprises the following steps as shown in figure 1:
the system comprises a garbage treatment station, an agricultural greenhouse, a solar photovoltaic power station, a percolate treatment station and a hydrogenation station which are respectively built in a landfill. In the present embodiment, the garbage disposal station is selected from one or a combination of a stale garbage disposal station, a domestic garbage disposal station and an organic garbage disposal station according to the situation of the application scenario.
The garbage disposal station adapts corresponding disposal processes according to different types of garbage disposed by the garbage disposal station to prepare hydrogen and/or auxiliary products, and the hydrogen is supplied to the hydrogenation station. In practical application, the method specifically comprises the following steps:
the method comprises the following steps of firstly, generating stale garbage and landfill gas by a stale garbage disposal station through a garbage landfill disposal process, storing the landfill gas into a methane cabinet, and excavating the stale garbage and supplying the stale garbage to the disposal process of a domestic garbage disposal station.
The primary and stale refuse treatment refers to the steps of carrying out biological drying on the refuse entering a landfill to reduce the moisture content of the refuse, then sorting the refuse, wherein the refuse with high calorific value is sold to a nearby power plant or pyrolyzed to prepare hydrogen by a high-temperature plasma gasification method. Compared with the old landfill site which needs to discharge the landfill gas into the atmosphere directly, the method not only causes huge energy waste, but also has CH4、NH3、H2S and the like cause serious environmental problems.
Secondly, the domestic garbage and the stale garbage in the domestic garbage treatment station are subjected to a garbage drying treatment process, products produced by the garbage drying treatment process are subjected to garbage sorting to produce garbage derived fuel, the calorific value of the garbage derived fuel is about 4000 kilocalories, and for the subsequent treatment mode of the garbage derived fuel, firstly, hydrogen is produced by a plasma gasification process and supplied to a hydrogenation station; and secondly, directly selling the refuse derived fuel to a power plant to be used as fuel for combustion and power generation.
Thirdly, the organic garbage treatment station sorts out liquid-phase garbage and solid-phase garbage through a bin; wherein, the liquid phase garbage is separated into an oil phase product, a solid phase product and a liquid phase product through three-phase separation, and the oil phase product is sold as waste oil;
the separated solid-phase garbage, the separated solid-phase product and the liquid-phase product are respectively subjected to an anaerobic digestion process to produce biogas and biogas residues, and on one hand, the biogas is stored in a biogas cabinet; on the other hand, biogas residues are supplied to agricultural planting as an auxiliary fertilizer.
The organic waste treatment refers to the treatment of non-combustible solid wastes such as kitchen waste, kitchen waste and sludge, the landfill site can utilize more land resources, and the utilization of the landfill site to treat perishable wastes can not only increase the benefit of the landfill site, but also can use biogas residues and biogas slurry generated after anaerobic treatment for agricultural production. The organic (perishable) garbage is subjected to anaerobic fermentation to generate methane and biogas residues. Wherein, the marsh gas enters a marsh gas purification unit and then is used for producing hydrogen or is combusted for generating power; the waste grease separated from the kitchen waste is sold to a biodiesel factory for use as a chemical raw material; and the biogas slurry and the biogas residues are used as fertilizers in the agricultural greenhouse.
Because the agricultural greenhouse is built in the landfill site, the agricultural planting in the agricultural greenhouse is applied with the biogas residues in an auxiliary way, and agricultural products are produced through the agricultural planting, the organic combination with the ecological agriculture development is realized. The agricultural greenhouse construction refers to the construction of an agricultural scientific and technological greenhouse with a steel structure in a stabilized non-landfill area, the roof surface of the greenhouse is used as a photovoltaic module, and the photovoltaic module is applied to a solar photovoltaic power station to build a photovoltaic and planting 'agricultural complementary' industrial mode.
Because a solar photovoltaic power station is built in a landfill site, solar energy is converted into electric energy by the solar photovoltaic power station and supplies power for agricultural planting, the surplus electric energy is supplied to the water electrolysis hydrogen production process, and hydrogen produced by the water electrolysis hydrogen production process is supplied to the hydrogenation station. The construction of solar photovoltaic power stations is to install photovoltaic modules on stabilized non-landfill areas and roofs of agricultural greenhouses, and the generated electricity is used for hydrogen production by electrolyzing water and providing growing environment for crop growth. The production raw materials of the water electrolysis hydrogen production process use the effluent and surface runoff rainwater of a landfill leachate treatment station to utilize photovoltaic power to digest the leachate of a landfill, and the combustible gas generated by the cathode of an electrolytic cell is mainly hydrogen.
Because the leachate treatment station is built in the landfill and generates impurity-free water through the sewage treatment process and supplies the impurity-free water to the hydrogen production process by electrolyzing water, the hydrogen production process by electrolyzing water is ensured to be smoothly carried out, and meanwhile, the methane generated by the sewage treatment process is also supplied to the methane cabinet for storage. In practical application, the leachate treatment is completed in a sewage treatment station, firstly, pollutants in the leachate are degraded by adopting an anaerobic process, biogas generated in the anaerobic fermentation process is conveyed into a biogas cabinet to be collected, hydrogen is produced or power is generated by combustion after purification, and the effluent of the sewage treatment process can reach the water quality standard of electrolyzed water by adopting an A/O + nanofiltration + reverse osmosis process or a non-membrane advanced oxidation technology according to specific conditions.
In the above, the biogas stored in the biogas cabinet is purified by a biogas purification process to obtain purified biogas, and the purified biogas is used for preparing hydrogen by a methane hydrogen production process and supplying the hydrogen to a hydrogenation station, or the biogas is directly used for generating electricity to realize cogeneration.
Example 2
The 'avoidance effect' of land resources of the refuse landfill is very obvious, and the utilization rate is low. In order to maintain the normal operation of the landfill, energy needs to be continuously delivered to the landfill. Such as: although the independent establishment of the garbage recycling factory can improve the utilization rate of land and garbage resources of the garbage landfill to a certain extent, the product needs additional transportation units to consume energy and output the energy to the outside, so the garbage recycling factory is still an energy consumption unit in the whole view and has limited economy. Similarly, the power landfill generated by the landfill gas power generation device cannot be consumed by itself, and additional investment of power transformation facilities is needed to be added to the power grid.
Based on the above, the present embodiment further provides a landfill reclamation and recycling system suitable for hydrogen energy development and utilization, the design principle of the system is based on the landfill reclamation and recycling method suitable for hydrogen energy development and utilization described in the above embodiment 1, and the system includes: stale refuse treatment station, domestic waste treatment station, organic refuse treatment station, add hydrogen station, natural pond gas holder, green house, solar photovoltaic power station and filtration liquid treatment station, specific design is as follows:
connecting the stale refuse treatment station to a biogas cabinet through a landfill gas conveying pipe so as to store landfill gas generated in the refuse treatment process of the stale refuse treatment station to the biogas cabinet;
the method comprises the following steps that a household garbage treatment station is connected to a garbage drying device through a garbage conveying device, the household garbage is dehydrated and dried through the garbage drying device and then is connected to a garbage sorting device through the garbage conveying device, and the garbage derived fuel is screened out through the garbage sorting device, wherein the heat value of the garbage derived fuel is about 4000 kilocalories; and secondly, directly selling the refuse derived fuel to a power plant to be used as fuel for combustion and power generation. Meanwhile, the garbage drying device is connected with the stale garbage disposal station through stale garbage transmission equipment, so that stale garbage generated by the stale garbage disposal station is also put into the garbage drying device for dehydration and drying.
The organic garbage treatment station is connected to a storage bin through garbage conveying equipment, and the storage bin is respectively connected with three-phase separation equipment and anaerobic digestion equipment. Wherein the three-phase separation device separates the liquid phase organic waste into an oil phase product, a solid phase product and a liquid phase product, and the three-phase separation device is connected with the anaerobic digestion device to convey the solid phase product and the liquid phase product to the anaerobic digestion device. The anaerobic digestion equipment carries out anaerobic digestion reaction on the solid-phase organic garbage, the solid-phase products and the liquid-phase products to generate marsh gas and marsh slag (marsh liquid), the anaerobic digestion equipment is communicated to a marsh gas cabinet through a marsh gas pipeline to store the marsh gas, and the marsh slag (marsh liquid) is supplied to an agricultural greenhouse to be used as an auxiliary fertilizer for agricultural planting.
Connecting the methane cabinet to a methane purification device through a methane pipeline, wherein the methane purification device is connected to a methane hydrogen production device and the methane hydrogen production device is connected to a hydrogen refueling station to supply hydrogen to the hydrogen refueling station; the marsh gas produced by the marsh gas purifying device can also be directly used as fuel to generate electricity by marsh gas, so as to realize cogeneration.
The method comprises the following steps that an agricultural greenhouse is connected to anaerobic digestion equipment through biogas residue transportation equipment, biogas residues (biogas slurry) produced by the anaerobic digestion equipment serve as fertilizers to assist agricultural planting, and are connected to a solar photovoltaic power station through a power transmission circuit, on one hand, a plurality of photovoltaic panels are arranged on the roof of the agricultural greenhouse, and each photovoltaic panel is electrically connected with the solar photovoltaic power station; on the other hand, electricity generated by the solar photovoltaic power station is also needed for agricultural planting.
The solar photovoltaic power station is connected with water electrolysis hydrogen production equipment through an electric power transmission circuit, and a hydrogen outlet of the water electrolysis hydrogen production equipment is communicated to the hydrogen adding station through a hydrogen pipeline so as to supply hydrogen for the hydrogen adding station.
The leachate treatment station is connected to the sewage treatment equipment through a leachate pipeline, the sewage treatment equipment is connected to the electrolyzed water hydrogen production equipment through a water outlet pipeline so as to meet the water consumption requirement of the electrolyzed water hydrogen production equipment, and the sewage treatment equipment is connected to the methane cabinet through a methane pipeline so as to store methane.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. A landfill treatment and recycling method suitable for hydrogen energy development and utilization is characterized by comprising the following steps:
respectively building a garbage disposal station and a hydrogenation station in a landfill site;
the garbage disposal station adapts corresponding disposal processes according to different types of garbage disposed by the garbage disposal station to prepare hydrogen and/or auxiliary products, supplies the hydrogen into the hydrogenation station and effectively utilizes the auxiliary products.
2. The method of landfill remediation and recycling for hydrogen energy development and utilization according to claim 1, wherein the waste disposal site is selected from one or more of a stale waste disposal site, a domestic waste disposal site and an organic waste disposal site.
3. The landfill yard treatment and recycling method suitable for hydrogen energy development and utilization according to claim 2, wherein the garbage disposal stations are a stale garbage disposal station and a domestic garbage disposal station;
the stale refuse treatment station generates stale refuse and landfill gas through a refuse landfill treatment process, and stores the landfill gas into a methane tank;
garbage and stale garbage in the domestic garbage treatment station are subjected to garbage drying and garbage sorting to produce garbage derived fuel, and the garbage derived fuel is subjected to hydrogen production through a plasma gasification process or is directly sold.
4. The method for treating and recycling the landfill site suitable for hydrogen energy development and utilization according to claim 2, wherein the garbage disposal station is an organic garbage disposal station which separates liquid-phase garbage and solid-phase garbage through a bin;
wherein, the liquid phase garbage is separated into an oil phase product, a solid phase product and a liquid phase product through three-phase separation, and the oil phase product is sold as waste oil;
and respectively producing biogas and biogas residues by the solid-phase garbage, the solid-phase products and the liquid-phase products through an anaerobic digestion process, and storing the biogas into a biogas cabinet.
5. The method of landfill remediation and recycling for hydrogen energy development and use according to claim 4, further comprising:
and constructing an agricultural greenhouse in the landfill site, wherein the agricultural planting in the agricultural greenhouse is applied with the biogas residues in an auxiliary manner, and agricultural products are produced through the agricultural planting.
6. The method of landfill remediation and recycling for hydrogen energy development and use of claim 5, further comprising:
a solar photovoltaic power station is built in a landfill site and supplies power for agricultural planting through the solar photovoltaic power station, surplus electric energy is supplied to a water electrolysis hydrogen production process, and hydrogen produced by the water electrolysis hydrogen production process is supplied to a hydrogen station.
7. The method of landfill remediation and recycling for hydrogen energy development and use of claim 6, further comprising:
a leachate treatment station is built in a landfill, impurity-free water generated by the leachate treatment station through a sewage treatment process is supplied to an electrolytic water hydrogen production process, and methane generated by the sewage treatment process is supplied to a methane cabinet.
8. The landfill treatment and recycling method suitable for hydrogen energy development and utilization according to any one of claims 3 to 7, wherein the biogas of the biogas tank is purified by a biogas purification process, and then hydrogen is prepared and supplied to a hydrogen refueling station by a methane hydrogen production process, or cogeneration is realized by biogas power generation.
9. A landfill remediation and recycling system suitable for hydrogen energy development and utilization, the system comprising: a stale refuse treatment station, a domestic refuse treatment station, an organic refuse treatment station, a hydrogenation station and a methane tank;
the stale refuse treatment station is connected to the biogas cabinet through a landfill gas conveying pipe;
the household garbage treatment station is sequentially connected with a garbage drying device and a garbage sorting device, and the garbage drying device is connected with the aged garbage treatment station through an aged garbage transmission device;
the organic garbage treatment station is connected with a storage bin, the storage bin is respectively connected with a three-phase separation device and an anaerobic digestion device, the three-phase separation device is connected with the anaerobic digestion device, and the anaerobic digestion device is communicated to the methane cabinet;
the methane tank is connected with a methane purification device, and the methane purification device is connected to the hydrogen adding station.
10. The landfill remediation and recycling system for hydrogen energy development and utilization according to claim 9, further comprising: the system comprises an agricultural greenhouse, a solar photovoltaic power station and a leachate treatment station, wherein the agricultural greenhouse is connected to anaerobic digestion equipment through biogas residue transportation equipment and is connected to the solar photovoltaic power station through a power transmission circuit;
the solar photovoltaic power station is connected with water electrolysis hydrogen production equipment, and the water electrolysis hydrogen production equipment is communicated to the hydrogenation station;
the leachate treatment station is connected with sewage treatment equipment, the sewage treatment equipment is connected to electrolyzed water hydrogen production equipment through a water outlet pipeline, and the sewage treatment equipment is connected to a methane cabinet through a methane pipeline.
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Application publication date: 20211026 |