WO2014161108A1

WO2014161108A1 - Method for carbon sequestration by planting, harvesting and landfilling fast-growing herbaceous plants

Info

Publication number: WO2014161108A1
Application number: PCT/CN2013/000436
Authority: WO
Inventors: 雷学军; 雷训
Original assignee: Lei Xuejun; Lei Xun
Priority date: 2013-04-02
Filing date: 2013-04-15
Publication date: 2014-10-09
Also published as: CN103155776B; CN103155776A

Abstract

Disclosed is a method for carbon sequestration by using fast-growing herbaceous plants, fast-growing algae, lichens or mosses, comprising: (1) planting and/or cultivating fast-growing herbaceous plants, fast-growing algae, lichens or mosses in a selected land area or water area; (2) harvesting or recovering the plants, algae, lichens or mosses after growing to a suitable height or size over a period of time; (3) drying the harvested or recovered plants, preferably by natural drying, such as sun drying or air drying, to obtain dried plants, algae, lichens or mosses; (4) transporting the dried plants, algae, lichens or mosses to a landfill and landfilling same; (5) after finishing landfilling, covering the finally landfilled plants with a layer of ordinary soil; and (6) recovering vegetation in the landfill.

Description

Method for carbon sequestration by planting, harvesting and landfilling of fast-growing herbaceous plants

The present invention relates to a method for carbon sequestration by planting and/or cultivating, harvesting and landfilling of fast-growing herbs, and belongs to the field of environmental protection.

Background technique

Since the industrial revolution of the eighteenth century, greenhouse gases such as C0 ₂ emitted by humans into the atmosphere have increased year by year, and the atmospheric greenhouse effect has increased, causing diseases, insects, pests and infectious diseases on the earth; sea level rise; climate anomalies , a series of serious problems such as the increase of marine storms; the rapid drought of land and the rapid expansion of desertification area. In recent decades, due to the rapid increase in population, rapid industrial development, co respiration of C0 ₂ and coal, oil, natural gas combustion _2, far beyond past levels. In the atmosphere, C0 _{2 is} doubled, and the global average temperature will rise by 1. 5~4. 5°C, the temperature rise in the polar regions is about three times higher than the average. The rise in temperature inevitably melts the polar ice layer and causes sea level rise. The sea level is rising by lm, the land is inundated with 5 million square kilometers, the affected population is about 1 billion, and the total amount of cultivated land in the world is reduced by 1/3. Extraordinary storm surges and saltwater intrusion, which are affected by coastal elevations below 5 m, account for about half of the world's population and food production. The greenhouse effect and global warming have attracted widespread attention from all over the world. Currently, the formulation of the International Climate Change Convention is being promoted. The reduction of C0 ₂ emissions has become an irresistible trend. Countries around the world envisage various measures to reduce emissions (eg, 0 ₂ , especially carbon sequestration technology has become the focus of discussion and research. For example, some scientists suggest that carbon dioxide is stored at the bottom of the ocean, but the stored carbon dioxide will still dissolve in seawater. The cost of causing seawater acidification affects the ocean, and the cost of carbon sequestration on the seabed is also quite high. Others suggest that afforestation is used to fix carbon.

CN101224464A (2008. 07. 23, application No. CN200810018961. X) discloses a method for underground carbon sequestration using biomass, which comprises pre-drying biomass (main straw), compressing and preservative treatment, and then burying it in Underground, for example buried in high-lying, dry and rain-stricken areas or buried under abandoned coal mines. The patent mainly uses the orange stalks of crops or crops for underground landfill to achieve carbon sequestration. However, the yield of straw is too low, and it cannot be harvested many times a year. It can only be harvested once and concentrated in one year. Moreover, the landfill is generally far away from the crop planting area, and the transportation of straw to the landfill is completed. This is too high, and the addition of preservatives can lead to increased costs and environmental pollution.

Although various techniques have been conceived and studied to fix carbon, the ideal method of carbon sequestration has not yet been found. The method of carbon fixation by planting (or cultivating), harvesting and landfilling of fast-growing herbs is not disclosed in the prior art.

In addition, for the treatment of municipal solid waste or urban domestic sewage (or wastewater), countries around the world have invested huge capital and labor costs each year.

Summary of the invention

It is an object of the present invention to provide a novel carbon sequestration method. By planting in land or water areas and

/ or breeding (1) fast-growing (fast-growing) herb (fast-growing herb), (2) fast-growing algae, (3) lichens or (4) moss, harvesting or harvesting of herbs grown or grown, Algae, lichens or moss, dried, and then landfilled to achieve carbon sequestration.

In the present application, the plants broadly include fast-growing herbs, as well as fast-growing algae, lichens or mosses (lower plants).

In this application "landfill plants" or "plants" are used interchangeably with biomass. Planting and/or growing areas are used interchangeably with growing areas.

Embodiments of the invention are summarized as follows:

1. A method of fixing carbon by using fast-growing herbs, fast-growing algae, lichens or moss, the method comprising:

(1) Planting and/or cultivating fast-growing herbaceous plants, fast-growing algae, lichens or moss in selected land areas or water bodies;

(2) Harvesting or harvesting of plants, algae, lichens or moss over a period of time to a suitable height or size (eg, grasses reaching a height of 1.5 m or more, water hyacinths growing to a height of 30 cm or more) And, when the harvested or harvested plant is a fast-growing herb planted and/or cultivated in a land area, controlling the harvesting or harvesting height of the herb to retain the root of the herb and retaining the stem of the herb The lower part (thus actually harvesting or harvesting the leaves of the fast-growing herb, and the upper part of the stem), or when the harvested or harvested plant is a fast-growing herb or fast-growing planted and/or cultivated in a water body area In the case of algae, a portion of the herb or part of the algae is retained in the water body area, or when the harvested or harvested plant is a lichen or moss planted and/or cultivated in the land area, a portion of the lichen is retained in the land area or Moss

(3) Drying the harvested or harvested plants, preferably drying naturally, such as drying or drying, to obtain Dry plants, algae, lichens or moss;

(4) Transport dry plants, algae, lichens or moss to the landfill and landfill.

In the present invention, the harvesting or harvesting is generally mechanical or manual harvesting or harvesting, preferably mechanical harvesting or harvesting, for example harvesting of the grass plants using an agricultural harvester. Filters can be used to harvest algae, or small mesh-type trawls can be used to collect algae in water bodies.

The selected land area or water body area described above as a planting and/or growing area is generally remote from the crop or crop planting area, for example at least 1 km, such as 2-5 km.

Landfills are generally located away from crops or crop-growing areas, such as at least 1 km, such as 2-6 km apart.

2. The method according to the above item 1, wherein in the step (2), when harvesting or harvesting fast-growing herbaceous plants grown in the land area, the retained "lower part of the stem" has at least one joint, preferably having 1-5 A joint, preferably 2 to 3 joints, to promote rapid germination or emergence of new leaves.

3. The method according to the above item 1, wherein during the plant cultivation or growth of the step (1) and/or after the harvesting or harvesting of the step (2), for the planting and/or cultivation area (or called growth) The terrestrial area of the area, which maintains the soil water balance in these areas by irrigating the planting and/or growing areas (or called growing areas), and applying fertilizers (such as nitrogen fertilizers) periodically or periodically (multiple times) in these areas. Phosphate fertilizer, compound fertilizer or fertilizer prepared by treatment of municipal solid waste or nutrient-rich treated water obtained by treatment of municipal domestic sewage, or as a planting and/or growing area (or called growing area) In the water body area, the fertilizer is applied regularly or periodically (multiple times) in these water bodies (such as nitrogen fertilizer, phosphate fertilizer, compound fertilizer or fertilizer prepared by treatment of municipal solid waste or rich by urban domestic sewage treatment). Nutrient-treated water).

4. According to the above method 1 or 2 or 3, wherein steps (1) - (4) or steps (2) - (4) can be repeated. Preferably, it is based on the growth height or size of the plant or the size of the plant (such as the growth height or size or plant size of fast-growing herbaceous plants grown in the land region or the growth of the water body region) or the growth density (such as algae, lichens or Moss growth density), repeat steps (2) - (4). Selection of suitable harvesting and/or harvesting opportunities is readily accomplished by those skilled in the art.

5. The method according to any one of the above 1 to 4, wherein the land area or the water body area as a planting and/or growing area (or growing area) is located in a tropical, subtropical, warm tropical, temperate or frigid zone. Terrestrial areas of the area (such as flats, basins, gentle slopes, mountains, gravel areas, barren beaches, uncultivable deserts, unsuitable forages, wetlands or swamps), freshwater waters (such as freshwater lakes, Rivers, streams, reservoirs, ponds, pools, ditches or canals), or marine areas such as offshore waters or bay waters near the coast.

In the present application, the water body region is divided into a fresh water type water body region and a marine water body region.

Fast-growing herbaceous plants grow rapidly in tropical, subtropical, warm tropical, temperate regions and can be harvested and/or harvested multiple times a year. In the terrestrial domain, especially in the tropical, subtropical, and warm tropical regions, fast-growing herbaceous plants (such as reeds and crickets, Pennisetum alopecuroides (L) Spreng, and grasses (Pennisetum purpureum Schum) Purple Pennisetum, and hybrids such as Phyllostachys pubescens, Corus gracilis, Sweet Grass or Hybrid Pennisetum, which are cultivated by the hybrid of Pennisetum and Grass, can be harvested and/or harvested in a year. -6 times, even 5-8 times. Fast-growing herbaceous plants such as water hyacinth (water hyacinth) or algae can be harvested and/or harvested in a single area of the water, especially in tropical, subtropical, and warm tropical regions. Seawater algae can be cultivated in the vast oceans of the world, especially in the offshore areas of coastal attachments. Freshwater algae are widely distributed in freshwater waters. Lichens or mosses are widely distributed on Earth and are distributed in various regions or regions from the tropics to the temperate zone or even to the frigid zone.

6. The method according to the above item 1, wherein the organic fertilizer is obtained by treating the municipal solid waste, for use in the plant cultivation or growth process of the step (1) and/or in the harvesting or harvesting of the step (2) Fertilizers are applied to fast-growing herbs, fast-growing algae (including freshwater algae and seaweeds), lichens or moss in the planting and/or growing areas for cultivation.

7. The method according to the above item 6, wherein the processing comprises:

a) manual or mechanical picking of waste to remove debris (such as coarse debris such as batteries, electrical appliances, electronics, metal objects, stones or glass);

b) sorting municipal solid waste and/or kitchen waste using municipal solid waste sorting devices or systems and methods to obtain waste containing organic matter (or nutrients);

These devices or systems and methods are commonly used in the prior art (such as the municipal solid waste wind sorting system disclosed in CN102601049A (CN201210069165. 5), a domestic waste sorting device disclosed in CN102962127A, disclosed in CN102962129A. Magnetic separation device and method for sorting metal materials in domestic garbage, and a device and method for sorting toxic and harmful substances in domestic garbage in CN102921548A, disclosed in CN102896137A, a city wet garbage wet Method of sorting process, disclosed in CN2026834791KCN201220361145) , a method for industrial mixed garbage sorting and comprehensive utilization disclosed in CN102671928A, disclosed in CN102671928A, a municipal mixed garbage sorting and comprehensive utilization method, disclosed in CN102794293A - a comprehensive treatment method for urban domestic garbage, disclosed in CN101289336A - Comprehensive disposal method of municipal solid waste, a domestic garbage sorting method disclosed in CN102179365A, CN102873031A garbage sorting system and method, a domestic garbage joint sorting device disclosed in CN102950140A, disclosed in CN202683452U (CN201220351070) A spiral-type garbage sorting machine disclosed in CN202741241U (CN201220382777), a domestic garbage metal sorter disclosed in CN102688879A, and a kitchen waste pretreatment system and method disclosed in CN102688882A, which is disclosed in CN102688882A System and method, CN101597186B method for removing heavy metals in garbage compost by combined washing with ammonium sulfate and malonic acid;

c) biochemical treatment of organic matter (or nutrient-rich) waste and the manufacture of organic fertilizers, including aerobic fermentation and/or anaerobic fermentation, and optional composting;

This biochemical treatment and technique for producing organic fertilizers is commonly used in the prior art. For example, a municipal garbage comprehensive anaerobic treatment heating method disclosed in CN102921706A, the kitchen waste and sludge in the CN102887736A are processed in the same way as the domestic garbage to produce a special fertilizer method, and the kitchen waste is disclosed in CN102746034A. A method for producing microbial light energy organic fertilizer, disclosed in CN102658285A, a domestic garbage organic matter liquefaction-biochemical treatment process and device, disclosed in CN102674908A, a facility supporting process for domestic garbage fertilizer, disclosed in CN102303985A The method for preparing organic fertilizer by using municipal solid waste as raw material, disclosed in CN102921695A, the municipal solid waste water selection and resource-reducing natural derivatization cycle ecosystem, and the subcritical water treatment in urban and rural organic solid waste production organic fertilizer and equipment disclosed in CN102146002A The excess sludge solar thermal radiation oxygen-rich fermentation treatment method and treatment system disclosed in CN102093137A, disclosed in CN101920259A, a method for treating phase separation aerobic and anaerobic of domestic garbage, and the activity of municipal solid waste disclosed in CN101804417A Landfill The method disclosed in CN101747094A is a method for biochemical treatment of domestic waste organic fertilizer, disclosed in CN101063152A, which is a method for re-fermentation of municipal waste by using a method of anaerobic fermentation of kitchen waste at room temperature, disclosed in CN101088965A.

8. According to the method of 6 or 7 above, the obtained organic fertilizer is directly laid on the land of the planting and/or cultivation area or blended with the soil (ie the soil in other places) and then planted and/or planted and/or The cultivated area is used as a planting soil. This is to improve uncultivable land such as gravel areas and deserts (eg, not suitable) The cultivation of cultivated deserts or Gobi deserts, sandy land or barren hills is advantageous.

In addition, soil in the growing and/or growing areas can improve soil structure by applying organic fertilizers, increase soil aggregates, increase soil agglomerate surface area, and enhance soil carbon sequestration capacity.

Organic fertilizers can improve soil structure and promote the formation of granular structures, thereby increasing soil porosity and improving soil aeration and water permeability.

9. The method according to any one of the above 1-8, wherein the treated nutrient-rich (or organic matter) sewage is obtained by treating municipal sewage or wastewater, the latter being used in the step (1) Fast-growing herbaceous plants in the planting and/or growing area during plant cultivation or growth and/or after harvesting or harvesting in step (2) (fast-growing herbaceous plants in terrestrial areas, such as fast-growing grasses such as reeds) , cockroaches, pennisetum, grassy, and hybrids cultivated by the hybrid of weeds and grasses, such as yarrow, giant grass, sweet grass or hybrid pennisetum; or freshwater water Fast-growing herbaceous plants, such as reeds, alfalfa, water hyacinth or algae), fast-growing algae (including freshwater algae and seaweeds), lichens or mosses for fertilizer application; especially for use in water bodies, such as freshwater water bodies or In the marine area (or marine type water body area), the fast-growing herb (reed, alfalfa, water hyacinth or algae), fast-growing algae (including freshwater algae and seawater algae) Fertilizer; or, the nutrient-rich sewage is used to irrigate fast-growing herbs grown and/or cultivated in the land area.

10. The method according to the above item 9, wherein the sewage treatment comprises: filtration, and optionally deodorization treatment (e.g., treatment with quicklime or slaked lime).

11. The method according to any one of the preceding items 1 to 10, wherein the fast-growing herbaceous plants planted and/or cultivated in the land area are: vetiver, ryegrass, sudangrass, false sorghum, Mexican corn grass, Alternanthera philoxeroides, Artemisia annua L., Solidago canadensis, Ragweed, Pine herb, Polymer grass, Alfalfa, Mountain bitter, Sandalwood, Amaranthus, Eulaliopsis, European chicory, Alfalfa, Reed, Alfalfa, Grass sorghum, Ricegrass, Spartina alterniflora, foxtail grass, big rope grass, sea king grass, salt grass, sea iris, pennisetum or grassy, or hybrids cultivated by weeds and grassy hybrids, Such as Huangzhucao, giant grass, sweet grass, hybrid pennisetum, Dumu No. 1 or Suza 2. Preferred are: reed, scorpion, pennisetum (Pennisetum alopecuroides (L) Spreng), grass (Pennisetum purpureum Schum, also known as purple wolftail), and hybrids cultivated by the hybrid of weed and grass. Such as Huangzhucao, giant grass, sweet grass, hybrid pennisetum, Dumu No. 1 or Suza 2;

Or fast-growing herbs grown and/or cultivated in water bodies (especially in freshwater areas) Yes: Water hyacinth (water hyacinth), algae, reed or scorpion.

The inventors of the present application have carefully studied and found that in the same unit floor area of the planting and/or growing (growing) area, the above-mentioned fast-growing herbaceous plants are capable of capturing carbon dioxide by photosynthesis about 4 to 6 times that of trees or shrubs. Or, similarly, at least 4-6 times the ability of other herbs harvested in a year to capture carbon dioxide. Regular or periodic for planting and/or growing areas during the cultivation and/or cultivation of fast-growing herbs or fast-growing algae or during their growth, and after harvesting or harvesting of fast-growing herbs or fast-growing algae Fast-growing herbs or fast-growing algae apply fertilizers to promote rapid plant growth by applying fertilizer multiple times.

In addition, the selected land areas or water bodies described above as planting and/or growing areas are generally remote from crops or crop-growing areas, for example at least 1 km apart, such as 2-5 km apart, so fast-growing for these areas The application of fertilizers in herbaceous plants or fast-growing algae is relatively low, and nitrogen and phosphate fertilizers can be applied as much as possible to meet the needs of rapid plant growth.

Table 1 below is a list of fast-growing herbs. Table 2 below is a list of fast growing algae.

Table 1, fast-growing plants

12. The method according to any one of the above 1-11, wherein in the step (1), the use of pennisetum, grassy grass, royal bamboo grass, sweet grass, hybrid pennisetum, hollow lotus grass, ragweed, Reeds, alfalfa, rice grass, Spartina alterniflora, foxgrass, big rope grass, sea king grass, hi salt grass, sea iris, false sorghum or Eulaliopsis binata as fast-growing herbaceous plants, using their roots or stems Asexual reproduction; or use vetiver, ryegrass, sudangrass, false sorghum, Mexican corn grass, Artemisia annua L., Solidago canadensis, pine herb, polymeric grass, alfalfa, mountain bitter, sand sorghum, amaranth, European Chicory, alfalfa or grass sorghum are used as fast-growing herbs to reproduce with their seeds.

13. The method according to any one of the preceding items 1 to 12, wherein the landfill is: a valley type landfill, or a flat landfill (such as a low-lying land, or a landfill pit excavated on a flat land) . The preferred landfill is a natural valley.

14. According to the above 13 methods, the valley type landfill or the flat landfill includes: a landfill unit (26) (referred to as a pit), a bottom of the landfill unit (such as the valley bottom) and a slope. (1) an A compacted clay layer (5) is disposed thereon, and the A compacted clay layer (5) is provided with a barrier liner layer (6), and the pit bottom A compacts the clay layer (5) a gravel layer (3) is provided, and the gravel layer (3) is provided with a soil layer (2); the landfill unit (26) consists of a space of the valley and an upper and lower intercepting dam, or a low-lying land or Artificially excavated pits.

15. The method according to the above item 14, wherein the surface layer of the landfill unit (26) is provided with a B compacted clay layer (33), and the B clay layer (33) is provided with a waterproof layer (18). The waterproof layer (18) is provided with a covering soil layer (17); and the covering soil layer (17) has a lateral drainage groove (19) at the edge.

16. According to the above method 15, wherein the landfill unit (26) is provided with a leachate recirculation pipe (16), a plurality of landfill gas collection wells (20) and a landfill heat collection well (21). ;

a leachate extraction pipe (7) is disposed in the gravel layer (3), and the leachate extraction pipe (7) is connected with the leachate treatment utilization device (9), and the leachate treatment and utilization device (9) is infiltrated The filtrate recirculation pipe (16) is connected, the leachate extraction pipe (7) is provided with a leachate extraction pump (8), and the leachate recirculation pipe (16) is provided with a leachate recirculation pump (15) ;

The cover soil layer (17) is provided with a geothermal well outlet pipe (13) and a geothermal well return pipe (14) inserted into the landfill heat collecting well (21), and the geothermal well outlet pipe (13) and landfill heat utilization are utilized. The device (10) is connected, the landfill heat utilization device (10) is connected to the geothermal well return pipe (14), and the geothermal well outlet pipe (13) is provided with a ground source heat pump (12), and the geothermal well return pipe ( ) is equipped with geothermal well recirculation pump The cover soil layer (17) is further provided with a gas collecting pipe (22) connected to the landfill gas collecting well (20), and the gas collecting pipe (22) is connected with the gas storage tank (24), and the gas collecting pipe (the gas collecting pipe) 23) an air pump (23) is provided thereon; the landfill further includes a groundwater monitoring well (25) connected to the groundwater layer (4) beside the pit; the groundwater monitoring well (25) is provided with a longitudinal Drainage channel (32).

17. The method according to any of the above 14-16, characterized in that the barrier liner layer (6) is a composite of HDPE geomembrane, or HDPE geomembrane and a geocomposite composite soil compact liner. Liner layer.

18. The method according to any of the above 14-17, characterized in that the geothermal well outlet pipe (13) inserted into the landfill heat collecting well (21) is provided with a plurality of small holes at the end.

19. The method of any of the above 14-18, wherein the landfill gas collection well (20) consists of a jacket (27) and an inner sleeve (28), the jacket (27) and The annulus between the inner sleeves (28) is filled with gravel (29), and the outer sleeve (27) and the inner sleeve (28) are provided with a plurality of small holes, and the inner sleeve (28) is connected with the gas collecting pipe (22).

20. The method according to any one of the above 14-19, characterized in that the leachate extraction pipe (7), the leachate recirculation pipe (16), the gas collection pipe (22), the geothermal well outlet pipe (13) ), the wall material of the geothermal well return pipe (14), the outer casing (27) and the inner casing (28) is PVC or HDPE; the landfill heat collecting well (21) is made of PVC, HDPE, glass, glass steel , ceramic or cement.

21. The method according to any of the above 14-20, characterized in that the pervious liquid refill pipe (16) in the landfill unit (26) is provided with a plurality of small holes.

22. The method according to any one of the above 14-21, wherein the plurality of landfill heat collecting wells (21) are arranged in a hexagonal shape, and two adjacent landfill heat collecting wells (21) Distance 200~500m, landfill heat collection well (21) Depth is 1/2~2/3 of landfill space unit (26), landfill heat collection well (21) bottom hole distance landfill unit (26) The bottom is 1~2 m.

23. The method of any of the above 14-22, wherein the plurality of landfill gas collection wells (20) are arranged in a hexagonal shape, adjacent to two landfill gas collection wells (20) The distance from the landfill gas collection well (20) is 1/3 to 1/2 of the height of the landfill unit (26), and the landfill gas collection well (20) is at the bottom of the landfill unit (26). ) Top 2~5 m.

Flat landfills refer to landfills built in flat terrain, including landfills built on flat plains, tidal flats, Gobi deserts, and deserts. The main landfill unit is located on the surface of the land, and the flood trench is intercepted around the landfill to intercept the rainwater outside the site and discharge the site. After the leachate is collected, it is sent to the downstream adjustment tank for concentration. Reason. A valley-type landfill is a landfill built in a low depression between two mountains, including a biomass landfill built in valleys, gullies, potholes, sloping fields, abandoned, dry reservoirs, rivers and mines; Using the landfill space formed by the valley, the dam is built in the lower reaches of the valley (or dams are built on the upper and lower reaches of a valley). The site is an independent hydrogeological unit, and the groundwater flows out to the valley. Outside the reservoir area, a circular reservoir intercepting ditch is set up to intercept the off-site rainwater and discharge into the downstream of the site. The leachate is collected and sent to the downstream conditioning tank for centralized treatment.

Typically, the landfill unit consists of a valley space (or a section of a valley space) and an upstream and downstream interceptor dam (or dam).

The two landfills should avoid nature reserves, scenic tourist areas, cultural relics and historic areas, residential areas and water conservation areas. The nearest human and animal habitats should be greater than 800m, and there is no pollution impact on centralized domestic water intake points. The landfill is located downstream of the groundwater flow, and the access roads should avoid the residents' concentrated areas.

24. The method according to any of the above 1-23, further comprising the steps of:

(5) Covering the final landfilled plant with a layer of covered common soil after the end of the plant landfill.

25. According to the method of the above 24, the following steps are also included:

(6) Vegetation restoration in the landfill: lay a layer of 5~200cm thick (preferably 20~100cm) planting soil on the covered soil, and then plant herbaceous plants, shrub plants and arbor plants; the planting soil is soil , peat soil and decomposed organic matter are formed by mixing 3~5: 1~2: 1 (by wt).

26. The method according to any one of the above 1-25, further comprising:

(7) a step of utilizing leachate in a plant landfill, the utilization step comprising the following substeps: (al) collecting leachate from the landfill to the leachate pool;

(a2) the leachate collected in the step (al) is sent to the ammonia nitrogen stripping tower for denitrification through the mechanical grid and the homogenization tank, and the ammonia gas generated by the denitrification is recovered by the ammonia recovery tower; wherein, when the leachate passes When the pool is uniform, the pH value in the pool is adjusted by the lime emulsion in the lime milk tank;

(a3) The leachate after denitrification is acidified by acidification tank and degraded by anaerobic reactor, and the formazan produced by fermentation degradation is stored after being removed by the methane recovery tower; the sludge formed by fermentation degradation is sent to the sludge for concentration. Pool concentration

(a4) The clarified liquid after fermentation degradation is clarified by the intermediate sedimentation tank and sent to the biological contact oxidation tower for oxidation, and then clarified by the secondary settling tank and sent to the reverse osmosis membrane device for filtration, and the filtered clean water is discharged to the finished water tank; The sludge in the intermediate and secondary sedimentation tanks is sent to the sludge concentration tank for concentration;

(a5) Dewatering the concentrated solid particles in the sludge concentration tank through a dehydrator to form a mud cake, and the mud cake and the new The biomass is re-buried and the effluent from the effluent is returned to the pool.

27. The method according to any one of the above 1-26, further comprising:

(8) A comprehensive utilization step of heat in a plant landfill, the step comprising the following sub-steps: (bl) collecting heat generated by the biomass landfill through the geothermal well;

(b2) The heat collected in step (bl) is sent to the steam turbine generator set by the generator heat pump, and is sent to the adsorption refrigeration unit for cooling by the heat pump of the refrigerator, and sent to the factory for heat supply by the heat pump of the factory equipment. The heating pump is fed into the radiator for heating, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crops;

(b3) The hot water discharged from the steam turbine generator set outlet after power generation in step (b2) is separately sent from the chiller heat pump to the adsorption chiller unit for cooling, and the factory equipment heat pump is sent to the factory for heat supply and heating. The pump is sent to the radiator for heating, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crops;

(b4) The hot water used in the refrigeration process of the adsorption chiller unit in step (b2) is separately sent from the heating pump to the radiator for heating, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crop;

(b5) The hot water used in the hot standby heating process in the step (b2) is separately sent to the heating sheet by the heating pump, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crop;

(b6) The hot water used in the refrigeration process of the adsorption chiller unit in step (b3) is separately sent from the heating pump to the radiator for heating, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crop;

(b7) The hot water used in the hot standby heating process in the step (b3) is separately sent to the heating sheet by the heating pump, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crop;

(b8) The hot water used in the heating process of the radiator in steps (b2) to (b7) is fed from the heating pump into the culture pond and the paddy field to provide heat for the crops.

28. The method according to any one of the above 1-27, further comprising:

(9) The comprehensive utilization steps of gas generated at the landfill site, including the following sub-steps:

(cl) collecting biomass landfill gas to the gas collection tank;

(c2) dehydrating the gas collected in the step (cl) through a dehydration tower, filtration through a filtration tower, desulfurization in a desulfurization tower, deoxidation in a vacuum deoxidation tower, drying in a drying tower, and separating the formazan, nitrogen and carbon dioxide through a membrane separation device;

(c3) the formazan separated in the step (c2) is purified by an adsorption device and compressed and collected in a formazan storage tank; the nitrogen is purified by a nitrogen purifying device and compressed and collected in a nitrogen storage tank; the carbon dioxide is purified by carbon dioxide The device is purified and compressed and collected in a carbon dioxide storage tank.

29. The method according to any one of the above 1-28, further comprising:

(10) The processing steps for producing malodor in a plant landfill site, including the following sub-steps: ( dl ) collecting the gas generated by the decomposition process of the biomass in the decomposition process to the gas collection tank, and collecting the liquid generated by the decomposition process of the biomass into the leachate pool;

(d2) When the gas malodor in the gas collecting tank is treated, the gas in the gas collecting tank is sent to the A biological filter tank; when the malodor of the liquid in the leachate tank is treated, the liquid in the leachate tank is sent to the water distribution tower Removing the malodor of the gas emitted by the liquid, and then feeding the deodorized gas into the A biological filter tank;

(d3) The gas sent to the biological filter tank in the step (d2) is deodorized and discharged through the A biological filter tank and the B biological filter tank.

Planting fast-growing, high-yield, high-carbon-harvesting terrestrial and aquatic herbaceous plants that can be harvested many times a year, with total leaf area and total number of chloroplasts, greater than the total leaf area and total number of chloroplasts of green plants of the same area cycle However, the growth period of green plants lasts for more than 10 years; the total carbon capture of fast-growing herbs is 30 to 50 times the total carbon capture of green plants in the same area. See Table 3 below for comparison of leaf area of the two.

Table 3 Total leaf area per acre / acre (in summer in the middle and lower reaches of the Yangtze River) Herbaceous plants

Emperor bamboo grass sweet grass reed

1950. 6 1837. 8 1918. 9 Leaf area (m ² ) 1973. 5 1819. 7 1889. 3

1926. 7 1867. 7 1835. 6 Average (m ² ) 1950. 2 1841. 7 1881. 2 Adult green plants

桉 tree 榆 tree 樟 tree

1310. 1 1423. 2 1762. 1 Leaf area ( m ² ) 1291. 1 1411. 2 1731. 3

1303. 2 1398. 7 1694. 5 Average (m ² ) 1301. 4 1411. 0 1729. 3 The above green plants have become adult green plants after 10-15 years of growth.

According to the above findings of the inventors, the present inventors first proposed planting fast-growing, high-yielding herbaceous plants, and by photosynthetic use, the atmosphere (the 0 _{2 is} converted into organic matter and buried under the formation, and the gas generated by the landfill plant, Leachate, heat, etc. are collected and utilized to achieve a global growth in carbon emissions. Annual landfill 138. 77~142.85 billion tons (dry weight) plants, within 100 years, the atmospheric concentration of C0 ₂ can be obtained from the current 0. 03909% fell to 0. 0275% before the industrial revolution. It opened up a new way for humans to cope with the atmospheric greenhouse effect. In general, the distance between the landfill and the planting area is relatively short, usually within a radius of 100 km.

Advantages of the invention

1) Planting fast-growing, high-yield, terrestrial and aquatic herbaceous plants with high CO ₂ efficiency, harvesting 4~6 times per year, harvesting an average of 300~525 tons (dry weight) per hectare per year; capturing C0 ₂ up to 294 ~ 514 tons. Harvesting or harvesting multiple times a year, the total carbon capture per unit area is significantly higher than the total carbon capture of green plants in the same planting area, which is 30-50 times that of the latter in 50 years. This was not thought of in the past. Planting and/or cultivating fast-growing algae, lichens and mosses, as well as their widespread distribution on the planet, can also achieve the desired carbon capture effect.

2) Provide operational and technical means and reference for international carbon trading.

3) As an industry to promote, it will help to increase the employment rate.

4) Comprehensive utilization of resources, such as the comprehensive utilization of heat, gas and leachate, can generate social economic benefits.

5) The distance between the landfill and the planting area is short, the transportation cost is low, and the operability is high.

6) Due to the large-scale cultivation and/or cultivation in selected land areas or water bodies, the quality requirements for organic fertilizers and irrigation water in these areas are not as strict as those in crop cultivation areas. Therefore, municipal solid waste and domestic sewage It can be used for fertilization or drip irrigation after less complicated treatment. It provides a low-cost way for the treatment of urban domestic waste and domestic sewage, enabling the sustainable use of resources and realizing the organic combination of resource utilization and environmental protection.

7) Since the plants grown and/or cultivated are mainly fast-growing herbs or fast-growing algae, it is convenient for large-scale harvesting. In particular, fast-growing herbs can be harvested by agricultural harvesters, avoiding the cost of manual harvesting. .

DRAWINGS

Figure 1 is a schematic view showing the structure of a landfill of the present invention;

Figure 2 is a schematic diagram of a landfill gas collection well;

Figure 3 is a schematic diagram of a landfill heat collection well.

In the picture:

1. Slope, 2. Soil layer, 3. Gravel layer, 4. Groundwater layer, 5. Compacted clay layer, 6. Impervious liner, 7. Leachate extraction pipe, 8. Leachate pump, 9. Leachate treatment and utilization equipment, 10, landfill heat utilization equipment, 11, geothermal well recirculation pump, 12, ground source heat pump, 13, geothermal well outlet pipe, 14, Geothermal well return pipe, 15, leachate recirculation pump, 16, leachate recirculation pipe, 17, covering soil layer, 18, waterproof layer, 19, horizontal drainage ditch, 20, landfill gas collection well, 21, landfill Heat collection wells, 22, gas collection pipes, 23, gas pumps, 24, gas storage tanks, 25. Groundwater monitoring wells, 26. Landfill space units, 27. Collection wells for landfill gas, 28. Landfill gas Collecting the inner casing, 29, gravel, 30, jacket venting holes, 31 inner venting holes, 32, longitudinal drainage ditch, 33, B compacted clay layer.

Specific embodiment

Preferred embodiments of the present invention are described in detail below, but the present invention is not limited to the embodiments provided. Example A - Urban Domestic Waste Treatment, Obtaining Organic Fertilizer

1. Sort out large pieces of wood, cardboard, decorative materials, foam and other combustible materials and construction waste such as cement, brick, marble, ceramic tile, gypsum board.

2. Break the plastic bag containing the household garbage and spread the bag.

3. Select the iron metal by magnetic separation.

4. Use the garbage wind sorting system (see CN102601049A) to screen the treated municipal solid waste, screen out the inorganic matter, and leave the organic matter crushed into large particles.

5, the crushed organic matter is added to human and animal waste, phosphate fertilizer, nitrogen fertilizer, etc., carbon to nitrogen ratio of 20~30: 1;

5公斤复合益菌粉剂。 The compound of the beneficial bacteria powder is diluted with 50~100 times, and the mixture is incubated for 8 to 12 hours. , pH value is 6~9; control organic matter reactor humidity is 45~60%.

After the fermentation is carried out for 5 to 10 days, the mixture is stirred and the compound is added to the organic material, and the amount of the additive is 0. 5kg of compound beneficial bacteria powder; the composting material humidity is maintained at 55~60%. between.

8. After turning over the pile, in summer, 5~10 days after the pile is piled up, the compost material enters the post-ripening period. In winter, after 7~15 days, the fertilizer raw material enters the post-ripening period; after the post-ripening period, it degrades under the open stage. 10 days completely decomposed;

9. Spread the fully decomposed organic fertilizer to make it dry or sun-dried, then crush and sieve the large particles through 0.1 to 2 mesh to form the finished organic fertilizer.

Example B - Urban domestic sewage treatment, obtaining nutrient-rich treated sewage

Urban domestic sewage mainly includes kitchen washing water, flushing wastewater and other living waste water. This type of wastewater contains a large amount of solid suspended matter, chemically or biodegradable dissolved or colloidally dispersed organic matter, nitrogenous compounds (including ammonia nitrogen, nitrate nitrogen, nitrite nitrogen and organic nitrogen), phosphate, potassium sodium and heavy metals. Ions, fungal biota, etc. If it is discharged into natural water without treatment or treatment, it will lead to eutrophication of water bodies. Toxicity accumulation, when water with high nitrogen content and high phosphorus content is discharged into the natural world, it is easy to cause eutrophication of water bodies, resulting in deterioration of water quality and environmental pollution.

1. The sludge and sewage enter the aeration tank at the same time, and the microorganisms in the aeration tank adsorb and decompose the organic matter in the sewage to purify the sewage.

2. The treated sewage is discharged into the aeration tank after sedimentation, and can directly feed the fast-growing and high-yield herb plants.

3. After the secondary sedimentation of the sludge, it is naturally dried (such as sun exposure), then crushed and sieved through 0. 1~2 mesh to remove the large particles and then become the finished organic fertilizer.

Example C - Urban domestic sewage treatment, obtaining nutrient-rich treated sewage

The effluent of the treated sewage is passed through the effluent of the treated sewage. The effluent is passed through the effluent. Transport vehicles or pipelines are transported to the planting and/or growing area for watering the plants.

Example 1 - Valley type landfill or flat landfill

Referring to Figures 1 to 3 for a typical landfill, the valley type biomass landfill includes a landfill unit 26, a bottom of the landfill unit (the bottom of the valley or the bottom of the pit) and the slope 1 An A compacted clay layer 5 is disposed thereon, and an impervious liner 6 is disposed in the A compacted clay layer 5 of the pit bottom and the slope, and the gravel layer 3 is disposed on the compacted clay layer 5 of the pit bottom A. The gravel layer 3 is provided with a soil layer 2; the landfill space unit 26 is filled with a valley, and the buried space unit 26 is provided with a B compacted clay layer 33 on the surface layer, and the B clay layer 33 is provided with a waterproof layer. 18, the waterproof layer 18 is provided with a covering soil layer 17; the edge of the covering soil layer 17 is provided with a horizontal drainage ditch 19; the landfill space unit 26 is provided with a leachate recirculation pipe 16, and a plurality of landfill gas collection The well 20 and the landfill heat collecting well 21; the gravel layer 3 is provided with a leachate extraction pipe 7, and the leachate extraction pipe 7 is connected with the leachate treatment and utilization device 9, and the leachate treatment and utilization device 9 is infiltrated The filtrate recirculation pipe 16 is connected, and the leachate extraction pipe 7 is provided with a leachate extraction pump 8, and the leachate recirculation pipe 16 is provided with an infiltration a liquid recirculation pump 15; the cover soil layer 17 is provided with a geothermal well outlet pipe 13 and a geothermal well return pipe 14 inserted into the landfill heat collecting well 21, and the geothermal well outlet pipe 13 is connected to the landfill heat utilization device 10, The landfill heat utilization device 10 is connected to the geothermal well return pipe 14, and the geothermal well outlet pipe 13 is provided with a ground source heat pump 12, and the hot well return pipe 14 is provided with a geothermal well return pump 11; The layer 17 is further provided with a gas collecting pipe 22 connected to the landfill gas collecting well 20, the gas collecting pipe 22 is connected to the gas storage tank 24, and the gas collecting pipe 23 is provided with a gas pump 23; the landfill also includes A groundwater monitoring well 25 connected to the groundwater layer 4 next to the pit; a vertical drain 32 is provided beside the groundwater monitoring well 25.

Wherein, the impervious liner 6 is a composite liner composed of an HDPE geomembrane, or an HDPE geomembrane and a geocomposite composite intumescent liner. The geothermal well outlet pipe 13 inserted into the landfill heat collecting well 21 is provided with a plurality of small holes at the end. The landfill gas collection well 20 is composed of a jacket 27 and an inner sleeve 28. The annulus between the jacket 27 and the inner sleeve 28 is filled with grit 29, and the outer casing 27 and the inner sleeve 28 are provided with a plurality of small holes. The inner sleeve 28 is connected to the gas collecting pipe 22. The wall material of the leachate extraction pipe 7, the leachate recirculation pipe 16, the gas collection pipe 22, the geothermal well outlet pipe 13, the geothermal well return pipe 14, the outer casing 27 and the inner casing 28 is PVC or HDPE; The collection wall 21 material is PVC, HDPE, glass, glass steel, ceramic or cement. The liquid pervious recirculation pipe 16 in the landfill space unit 26 is provided with a plurality of small holes. The plurality of landfill heat collecting wells 21 are arranged in a hexagonal shape, and the distance between two adjacent landfill heat collecting wells 21 is 200 to 500 m, and the depth of the landfill heat collecting well 21 is 1/2 of the height of the landfill space unit 26. 2/3, the landfill heat collection well 21 is located at the bottom of the landfill unit 26 and the bottom of the landfill unit 26 is 1~2 mo. The plurality of landfill gas collection wells 20 are arranged in a hexagonal shape, and the distance between two adjacent landfill gas collection wells 20 10~50m, the depth of the landfill gas collection well 20 is 1/3~1/2 of the height of the landfill space unit (26), and the bottom of the landfill gas collection well 20 is 2~5 m from the top of the landfill space unit 26.

Example 2 - Planting and cultivating, harvesting and landfilling of Pennisetum, Elephant Grass, Royal Bamboo Grass, Sweet Grass or Hybrid Pennisetum

Take the middle and lower reaches of the Yangtze River in China and the Central South and South China.

The species cultivated by the hybridization of Pennisetum, Elephant Grass and Pennisetum, such as Huangzhucao, Sweet Grass, Hybrid Pennisetum, etc., are vegetatively propagated with stems, expand the planting area, and pass water and fertilizer management. Multiple harvesting to achieve high-yield cultivation and scientific landfill.

Specific steps are as follows:

First, rapid reproduction

(1) Site selection and site preparation

Select the soil with deep soil, loose and fertile, sunny, and good drainage performance. In the winter of the last year, the land will be turned 20~30cm deep. After the winter, the soil will be matured, and then the soil will be ploughed 1 time before the next planting. To remove weeds, stones, etc., combined with shallow tillage, apply organic fertilizers of Example A or B 3000 to 5000 kg per mu or 50 to 100 kg of compound fertilizer. According to the width of 2~5m, the ridge is 10~30cm deep. The ridge length depends on the terrain. The steep slope is ridged along the contour line to facilitate drainage and field management. (2) Seedling time

When the temperature reaches 2Ό5 in May and May, it is more suitable for seedlings. When the temperature is lower than 5°C, the plastic mulch is used to cover the seedlings. When the weather is dry and the temperature exceeds 40Ό, it is not suitable for seedlings.

(2) Stem preparation

Select the stalks with full, healthy and disease-free buds from the mature plants over 6 months old as the seed stalks. Before planting, tear off the leaves that wrap the buds and cut them into small pieces with a knife. Each section retains 1~3 knots. There are 1~2 axillary buds on each section, the upper part of the bud eye is short, and the lower part is long. The cut seed section should be planted in time, and the waterproof part is lost.

The cut section can be soaked with ABT rooting powder with a mass concentration ratio of lOOppm for 20~24h to promote rooting and germination. 1g of rooting powder can treat 3000~5000 stem segments; or it can be directly stained with grass ash or lime at the incision. 300g, sodium chloride 5~10g, water 0. 8~1L mixture, anti-corrosion treatment, or soaked in rooting powder before anti-corrosion treatment.

(3) the next species

The buds of the buds are placed at an angle of 30~45° to the ground and inserted into the soil at an angle of 30~45°. One section of the buds is inserted into the soil 2~3cm, and the last bud of many sections can be exposed outside the soil; The axillary buds are placed flat on the soil, and the axillary buds and stems are covered with fine soil. After the next planting, timely pour the foot 1 time to clear the dung water or clear water.

(4) Nursery management

Before the seedlings grow out of the ground, keep the soil in the seedbed moist and water in sunny days. After 7 to 10 days, the seedlings will start to be transplanted. After 20 to 30 days, the seedlings can be transplanted at a height of 20 to 25 cm. During the seedling stage, the surface layer of the soil is caused by watering, and the soil around the seed section should be loosened in time. After the seedlings are unearthed for 10 days, the seedlings are still yellow and thin, and 20~25kg of urea is applied per acre combined with watering, or 10~15kg of ammonium nitrite is added to 200~300kg of human and animal manure, evenly splashed.

In the early days of seedling unearthing, the tigers like to bite off seedlings and fleshy roots, causing plant death or poor growth. Manually capture or dilute 800~1000 times with phoxim with a mass concentration ratio of 50%, or mass concentration ratio of 80% trichlorfon diluted with water 800~1000 times liquid spray control.

During the nursery period, the aphids endanger the leaves and stems of the plants, and dilute them with 1000% to 1500 times of water with a concentration of 40% by weight of omethoate, or dilute them to 2000~3000 with a concentration ratio of 25%. Double liquid spray control.

Second, r3⁄4 production and cultivation

(1) Land leveling 1~2 months before transplanting in Daejeon, deep tillage 20~30cm to promote soil ripening, shallow tillage 1 time before transplanting, combined with shallow tillage application of organic fertilizer 4000~5000kg per mu, superphosphate or calcium magnesium phosphate 100~150kg . According to the 10~20m wide ridge, the ridge is 10~30cm deep. The ridge length depends on the terrain. The slope is ridged along the contour line to facilitate drainage and field management. In the mountainous areas with large inclination angles, in order to prevent soil erosion, there is no need for ridges.

(2) Field transplanting

The level of Datian plant spacing is 30~4001^40~500;:11, 10~15cm deep, planting ditch or planting hole, 1 hole per hole, 2000~3000 plants per acre; poorly lighted land or barren mountainous area, Plant spacing is 50~70cm x 80~100cm, depth 10~15cm to open planting ditch or planting hole, 1 hole per hole, 800~1200 plants per acre. Before the transplanting of the seedlings, 10~15g of compound fertilizer or urea is applied to each hole to promote early tillering, multi-split, and accelerate seedling growth. Then backfill 2~5cm thick fine soil to cover the bottom fertilizer; then put the seedlings in the planting ditch and strengthen the surrounding area with soil. After transplanting, water the roots to keep the soil moist, keep the soil dry and dry for 1~2 days, and then turn the water for 5~7 days. For places where there is a shortage of seedlings, it is necessary to transplant the seedlings in time to ensure that the survival rate is above 95%.

(3) cultivating and weeding

The seedlings grow slowly in the early stage, and are easily affected by weeds. The plants are weeded and weeded 1 to 2 times before the plants are closed. The first time of cultivating, when the plants start to divide till 25~35 days after transplanting, choose the sunny day for weeding and loosening the soil; the second weeding is 60~70 days after transplanting, then the plant grows most vigorously, combined with weeding and loosening soil, The soil is planted around the nursery to avoid plant lodging; after each harvest, weeding and weeding should be carried out to loosen the soil.

(4) Fertilizer management

The varieties cultivated by the hybrids of Pennisetum, Elephant Grass and Pennisetum are like fertile water, and the weather is fine and dry for a long time. Watering once every 3~5 days or applying 1 time of clearing water; continuous rainy days, pay attention to drainage Anti-staining. When the plant grows to a height of 50~60cm, each compound is applied with 10~15g of compound fertilizer or urea; when the plant grows to a height of 100~150cm, 20~25g of compound fertilizer or urea is applied per hectare, or 400g of manure per acre. ~500kg plus nitrogen ammonium 20~25kg. 2~5 days after each harvest, 500~800kg of animal manure per acre after loosening, or 20~25kg of urea or urea per mu combined with watering.

(5) Pest control

The varieties cultivated by the hybrids of Pennisetum, Elephant Grass and Pennisetum, such as Huangzhucao, Sweet Grass, and Hybrid Pennisetum, have strong disease resistance, and few pests and diseases occur. Before jointing, mainly the aphids and borers harm the leaves and stems of the plants, and dilute 800~1200 times with omethoate with a mass concentration ratio of 40%, or kill the cream with a mass concentration ratio of 25%. Water dilution 1500~2000 times liquid spray control.

After jointing, mainly anthracnose and powdery mildew harm the seedling leaves and stems, keep the air circulation between the plants and reduce the humidity in the field; the mass concentration ratio of anthracnose and powdery mildew prevention and control is 5% carbendazim diluted with water 800~ 1000 The liquid is sprayed with Bordeaux mixture of 3 to 5 kg of lime, 3 to 5 kg of sulfur, and 1000 to 1500 kg of water, and sprayed twice continuously for 5 to 7 days.

(5) Wintering management

The varieties cultivated by the hybrids of Pennisetum, Elephant Grass and Pennisetum are strong in roots and can grow continuously for 4 to 8 years. In winter, the weeds in the field are cleared to reduce the pests and winters. In areas with a temperature of more than 5 冬季 in winter, the last one will be left at 10~15cm during harvest, which will naturally winter; the lowest temperature in winter is 0~-5°C, and the area with long frost period is recommended to be 12~18cm. Covered with hay or plastic film to keep warm for the winter.

Third, multiple harvesting

Every 5 to 11 days from May to November, when the plant is as high as 100~150cm, it can be harvested once, and it can be harvested 4~8 times a year. At the first harvest, leave 10cm, and then "successive green cutting" to facilitate plant regeneration, and finally the height of the stubble does not exceed 20cm. Avoid rain harvesting to reduce the occurrence of pests and diseases. The output in the first year is slightly lower, the output per mu is 10~15 tons, and the output after the second year is 20~30 tons.

Fourth, timely landfill

The harvested young crops should not be stacked in the growing ground for more than 2 days. The young crops are rich in water and are prone to heat during the stacking process, which affects the next regeneration. It is best to remove the young crops from the growing area on the day of castration, and dry for 3 to 5 days, naturally dry to reduce the water content of the plants, and then transport them to the plant landfill for landfill.

The surface parts of the plants harvested in autumn can be transported to the landfill for landfill after being bundled.

Example 3 - Planting and cultivating, harvesting and landfilling of reeds or alfalfa

Using the rhizome of reeds and alfalfa for asexual reproduction, expanding the planting area, and achieving high-yield cultivation and scientific landfill through water and fertilizer management and multiple harvesting.

Specific steps are as follows:

First, rapid reproduction

After thawing in spring and germination of ramets on rhizomes, dark yellow to brown were selected from the high-yield areas, and the epidermis was thick and the lateral buds and bifurcations of the stalks were the best. The length of the roots is 30~50cm, 3~5 knots, and the row spacing is l~1. 5m, excavating 5~10cm deep soil ditch, rhizomes After laying flat, the thickness of the soil is 8~12cm. After planting, it should be stepped on to ensure water retention; or obliquely inserted into the soft mud layer, the upper end is exposed to the ground 2~5cm, 1~2 knots, so that the seedlings are quick and the seedlings are unearthed. Before the seedlings are unearthed, keep the soil moist or shallow water of 2~5cm, and the deepest can not exceed 10cm.

Second, high-yield cultivation

1. Fertilizer management

Reeds and alfalfa are plants that require high nitrogen and high potassium. The ratio of nitrogen, phosphorus and potassium is 16~20: 1~2: 8~10 is most beneficial for growth. In the saline-alkaline soil area, 10~20kg of calcium fertilizer can be added per acre to promote growth.

The vegetative growth period before jointing is mainly based on nitrogen metabolism. The absorption of nitrogen, phosphorus and potassium in the aerial part is the highest period of the year, applying 10~15kg per mu or 10~15kg of urea; after heading to heading Before flowering, carbon and nitrogen metabolism are vigorous. The focus of nutrient supply is still above ground, and 5~10kg of urea per acre. After heading and flowering, carbon metabolism is the main factor, and some aboveground plants stop growing. Nutrients mainly supply underground organs.

Winter reeds and alfalfa before harvesting until spring germination, the entire growth area is covered with a layer of decomposed organic fertilizer, thick 2~

10cm; Acidic heavy soil, organic fertilizer mixed with 50~100kg lime per acre.

Reeds and alfalfa are hi-water plants, which grow on silt swamp soil, humus marsh soil, peat swamp soil, peat soil and coastal salt soil. They have a wide adaptability to water, and can grow from a few centimeters to a depth of lm. The most suitable water depth is about 20 to 30 cm. pH6. 0~7. 5, alkali resistance is not acid resistant, pH above 8. 5 can also survive, but the growth is not good, the plant is short, and the stem is soft.

Perennial reeds and alfalfa sprouts, the soil remains moist or thin water on the surface, the depth does not exceed lOcni; as the temperature rises, the plants continue to increase, the water layer can slowly deepen, and increase to 10~30crn after entering June, which continues By the middle and late August, the deepest is no more than lm, and the plants cannot be submerged.

In the period of high temperature and strong growth period from June to August, the implementation of "three rows of three irrigations" in areas with sufficient water supply and the withdrawal of water for 2 to 3 times in a short period of time can accelerate the decomposition of organic matter and is more beneficial to growth. After mid-to-late August, flowering and fruiting will no longer increase and thicken. At this time, the accumulation of water on the surface will accelerate the aging of the stalk, increase the cellulose content, and accelerate the decomposition of organic matter on the surface and soil, which is better for the leap year. Growing.

2, weeding and pest control

5~ ² . 5L/hm ² , with a mass concentration ratio of 45%, according to the growth of the weeds in the field, according to the growth of the weeds in the field. 5kg / hm ² two herbicides mixed, diluted with water to 500 ~ 600 times liquid. It is best applied in the wet morning and evening of the soil, which can prevent the growth of a large number of weeds in the field, and the sporadic weeds in the late growth stage, artificially eradicated.

The main pest is aphid, sprayed with 500 times solution of imipenem wettable powder with a mass concentration ratio of 10%; Or a mass concentration ratio of 40% omethoate emulsifiable concentrate 1. 5~ ² . 5L / hm ² , plus 80% of the dilute emulsifiable concentrate with a mass concentration ratio of 0. 75~lL/hm ² , diluted with water to 500~600 times Spray control.

Third, multiple harvesting

1. Harvest time

Castration in the middle of jointing is more appropriate, which not only increases the number of harvests, but also has less impact on autumn harvest. Harvesting before the middle of jointing is beneficial to the growth of the latter, but the yield is low. After the mid-section of jointing, the yield per harvest is high, but it affects the growth of the next one and reduces the total yield. The harvest can be postponed appropriately during the flood period, but not later than the flowering period.

2, the height of the stubble

After each castration, the plant's apical dominance is removed, which causes the axillary buds on the wreck to sprout into new strains. Only the lower axillary buds of the reeds can germinate, and the buds can germinate everywhere. The height of the stubble is 10~30cm, and there are 1~2 knots guaranteed. Each time you cast, you must leave 1 or 2 knots on the basis of the previous stay.

In autumn and winter, when the stems and leaves turn yellow for the last harvest, the surface water is removed to harden the soil, and the stubble is 5~10cm for harvesting.

3, regeneration and rejuvenation

Each harvest will drastically reduce the photosynthesis area of the plant, and the growth will decline or even fail to grow normally. After each young crop is harvested, apply 10~15kg of compound fertilizer per acre or 10~15kg of urea to keep the soil moist or 5~10cm shallow water. In the middle and early August, after the last harvest of young crops, apply 5~10kg of compound fertilizer per acre and 10~15kg of urea.

Fourth, timely landfill

The young crops harvested in the middle of the jointing period are stacked in the growing ground and cannot exceed 2 days. The young seedlings are rich in water and are prone to heat during the stacking process, which affects the next regeneration. It is best to remove the young crops from the growing area and dry them for 3 to 5 days, naturally drying to reduce the water content of the plants, and then transport them to the plant landfill for landfill.

The surface parts of the plants harvested in autumn and winter can be transported to the landfill for landfill after being bundled. Example 4 - Planting and cultivating, harvesting and landfilling of Eichhornia crassipes and algae

The seedlings of Eichhornia crassipes and algae are used for asexual reproduction, the planting area is expanded, and high-yield cultivation and scientific landfill are realized through water and fertilizer management and multiple harvesting.

Specific steps are as follows:

First, rapid reproduction Eichhornia crassipes and algae can be propagated throughout the year at temperatures below 10 温度, and winters need to be protected in frosty areas in winter. When the average water temperature reaches 15 °C or higher in the following year, choose a water body rich in organic matter, a water depth of 0. 5~lm or a water body with a slow flow rate, and the roots of the plant can be naturally put into the water downwards, and the water surface is placed on each acre. Seedlings 500~1000 trees. Seedlings are enclosed by ropes or frames to avoid wind and waves. 20~40 days can be overgrown with water surface, topdressing once every 10~15 days, 500~1000kg per mu of fermented organic fertilizer or 50~100kg of 1~3% urea solution sprayed on the foliar surface.

Second, high-yield cultivation

1. Water and fertilizer management

Eichhornia crassipes and algae grow in shallow water and fertile soil. The water depth is 30~100 _cm , and the water depth can exceed 10 meters. It can still grow normally, but it is not convenient for fertilizer and water management.

Before the large-scale planting, the base fertilizer should be applied. The nutrient-rich water body should be fertilized with organic fertilizer 500~1000kg, and the nutrient-deficient water body should be cooked with 1000~2000kg of organic fertilizer.

During the peak season of growth from June to August, 200~500kg per mu of organic fertilizer applied per mu, or 2~3 times of organic fertilizer per month, each time per mu of fermented organic fertilizer 500~ 1000kg. Bottom The eutrophic water body rich in organic matter, which stirs the sludge after each fishing, can reduce the amount of application and the number of application of the decomposed organic fertilizer.

In order to promote the growth height of Eichhornia crassipes and algae, the water surface is divided into several units by rope, trees, bamboo and other materials to prevent the water from affecting the plant ramets, and the appropriate plant density can increase the individual growth height of the plants. When planting in a large area, a single growth unit area of 1000~5000 m ^{2 is} suitable, and the fence is exposed to a water surface height of 10 to 50 cm.

2, winter management

Most of the mother plants are used for winter and winter, and are stocked in large areas of water in spring. In areas where the temperature is below 5 °C in winter and there is frost, the water hyacinth and algae must be protected to survive the winter. In the greenhouse, straws, husks, animal droppings and other tempering materials are used to make hot beds, so that the bed temperature is kept above 1CTC, and the robust wintering mother plants are transplanted to the hotbed. During the winter, the sun is sufficient, and a certain amount of water is maintained, and pests and diseases are prevented in time. After warming, they are moved into the open air for stocking.

3. Prevention of pests and diseases

The main pests and diseases are aphids, leaf curlers, green worms, powder beetles and verticillium wilt. The most harmful are aphids and verticillium wilt. The aphid can be sprayed with a mass concentration ratio of 40% dimethoate emulsion, diluted with water to 200~300 times. After the onset of verticillium wilt, spray with Bordeaux mixture of 5 kg of lime, 5 kg of sulfur, and 800 to 1000 kg of water. Third, multiple harvests

Eichhornia crassipes and algae breed in the peak season from June to August, and grow very fast. Harvest once every 2~5 days, the total growth of each catch is 30~40%, and the maximum is no more than 50%. Ensure that there are enough seedlings to continue to breed, and at the same time spread the plants evenly, and apply 200~500kg per mu of fermented organic fertilizer or stir the sludge to facilitate growth.

Fourth, timely landfill

The water content of Eichhornia crassipes and algae is as high as 95%. After catching the fish, spread it on the shore for 2 to 5 days, draining the water to reduce the transport weight. When the temperature is high, the concentrated stacking time on the shore cannot exceed 5 days, so it must be landfilled.

Example 5 - Utilization of leachate in fast-growing herb landfills

Utilization of leachate in fast-growing herbicide landfills:

(1) collecting leachate from the landfill to the leachate pool;

(2) The leachate collected in step (1) is sent to the ammonia nitrogen stripping tower for denitrification through the mechanical grid and the homogenization tank, and the ammonia gas generated by the denitrification is recovered by the ammonia recovery tower; wherein, when the leachate passes through When the pool is uniform, the pH value in the pool is adjusted by the lime emulsion in the lime milk tank;

(3) The leachate after denitrification is acidified by acidification tank and degraded by anaerobic reactor, and the formazan produced by fermentation degradation is stored after being removed by the methane recovery tower; the sludge formed by fermentation degradation is sent to the sludge for concentration. Pool concentration

(4) The clarified liquid after fermentation degradation is clarified by the intermediate sedimentation tank, sent to the biological contact oxidation tower for oxidation, and then clarified by the secondary settling tank and sent to the reverse osmosis membrane device for filtration, and the filtered clean water is discharged to the finished water tank; The sludge in the intermediate and secondary sedimentation tanks is sent to the sludge concentration tank for concentration;

(5) The concentrated solid particles in the sludge concentration tank are dehydrated by a dehydrator to form a mud cake, the mud cake and the new biomass are re-buried, and the separated sewage is returned to the homogenization tank.

In addition, the comprehensive utilization equipment and method for the heat generated by landfill fast-growing plants can be found in 201210588028. 2 . The comprehensive utilization equipment and method for the gas generated by landfill fast-growing plants can be found in 201210529862. 4, The treatment equipment and method for producing malodor caused by landfill fast-growing plants See 201210529822. X. The contents of these documents are incorporated herein by reference as if they were described in detail herein.

Example 6 - Landfill Recovery

The plant landfill vegetation restoration method: (1) Planting soil preparation:

Take the soil around the landfill, remove the sand and crush it, pass it through the 1~3 mesh screen, and then burn it with the plant leaves, weeds and crop straws. After the smoked fire, the soil structure is improved and the fertility is improved. Forming peat soil. The common soil around the landfill, the peat soil and the decomposed organic matter are mixed according to 3~5: 1~2: 1 to form the planting soil.

(2) After the landfill is planted, it covers more than 10 cm of ordinary soil. After 1 year, plant 5~100cm of planting soil on the soil, and plant herbaceous plants such as teff, goosegrass, zephyr, clover or alfalfa when the climate is suitable.

(3) Excavation (20~30) cmX (20~30) cmX (20~30) cm planting hole according to plant spacing (2~3) mX (2~3) m, filling 10~20cm planting soil Planting shrub plants on the planting soil; excavating (50~80) cmX (50~80) cmX (50~80) cm planting holes according to plant spacing (5~10) mX (5~10) m Fill the 20~40cm planting soil, and plant arbor trees such as cedar and holly on the planting soil.

Example 7 - Vegetation Restoration in Landfills

Landfill vegetation restoration method for the landfill plant:

(1) Planting soil preparation:

(2) After the landfill is closed, the surface of the landfill will be trimmed to form the slope top and slope, and then cover the soil of 30~150cm. In combination with soil dressing, a layer of 2~100cm thick planting soil is laid on the soil covered by the biomass landfill. Seeds of herbaceous plants such as teff, goosegrass, sage, clover or alfalfa are sown when the climate is right.

(3) The normal tree planting method is adopted at the top of the slope. The slope surface is in the form of “fish scale pit” and the planting points are equally spaced along the contour line to intercept natural precipitation and irrigation water to prevent soil erosion.

(4) Planting spacing (2~3) mX (2~3) m excavation (20~30) cmX (20~30) cmX (20~30) cm planting hole, filling 10~20cm planting soil Planting shrub plants on the planting soil; excavating (50~80) craX (50~80) cmX (50~80) cm planting holes according to plant spacing (5~10) mX (5~10) m Fill 20~40cm of planting soil, plant cedar, holly, etc. on the planting soil. Wood species.

Claims

Claim

(2) Harvesting or harvesting plants, algae, lichens or mosses after a period of growth to a suitable height or size, and when the harvested or harvested plants are fast growing and/or cultivating in the land area In the case of a herb, the harvesting or harvesting height of the herb is controlled in order to retain the root of the herb and to retain the lower part of the stem of the herb, or when the harvested or harvested plant is planted and/or cultivated in the body of water a fast-growing herb or fast-growing algae that retains a portion of the herbaceous plant or part of the algae in the water body, or when the harvested or harvested plant is a lichens or moss that is grown and/or cultivated in the land area, in the land area Retain a portion of the lichens or moss;

(3) drying the harvested or harvested plants, preferably drying naturally, such as drying or air drying, to obtain dried plants, algae, lichens or moss;

(4) Transport dry plants, algae, lichens or moss to the landfill and landfill.

2. A method according to claim 1 wherein when the fast-growing herb grown in the terrestrial region is harvested or harvested in step (2), the retained "lower portion of the stem" has at least one joint to promote rapid plant growth Sprouting or growing new leaves.

3. A method according to claim 1 wherein, during the plant cultivation or growth of step (1) and/or after harvesting or harvesting of step (2), for a land area as a planting and/or growing area, Maintaining soil water balance in these areas by irrigating planting and/or growing areas (or areas of growth), and applying fertilizers periodically or periodically in these areas, or for areas of water that are planting and/or growing areas, Fertilizers are applied periodically or periodically in these water bodies.

4. A method according to claim 1 or 2 or 3, wherein steps (1) - (4) or steps (2) - (4) can be repeated multiple times a year.

The method according to any one of claims 1 to 4, wherein the land area or the water body area as a planting and/or cultivation area refers to a land area located in a tropical, subtropical, warm tropical, temperate or cold zone , freshwater water bodies, or marine areas.

6. The method according to claim 1, wherein the municipal solid waste is processed and obtained An organic fertilizer for use in the plant cultivation or growth of step (1) and/or for the fast-growing herb, fast-growing algae in the planting and/or growing area after harvesting or harvesting in step (2), Fertilizers are applied to the lichens or moss for cultivation.

7. The method of claim 6 wherein said processing comprises:

a) manual or mechanical picking of waste to remove debris;

b) Sort municipal solid waste and/or kitchen waste using municipal solid waste sorting devices or systems and methods to obtain waste rich in organic matter or nutrients;

c) Biochemical treatment of organic matter (or nutrient-rich) waste and the manufacture of organic fertilizers, including aerobic fermentation and/or anaerobic fermentation, and optional composting.

8. The method according to claim 6 or 7, wherein the obtained organic fertilizer is directly laid on the land of the planting and/or cultivation area or is mixed with the soil of the guest soil, that is, other places, and then planted and/or cultivated. The soil in the area is used as planting soil; or the soil in the growing and/or growing area is improved by applying the above organic fertilizer to increase soil structure, increase soil aggregates, increase soil agglomerate surface area, and enhance soil carbon sequestration capacity.

9. A method according to any one of claims 1-8, wherein the treated nutrient- or organic-rich sewage is obtained by treating municipal sewage or wastewater, the latter being used in step (1) Incubating fertilizers in fast growing herbs, fast-growing algae, lichens or mosses in the planting and/or growing areas during plant cultivation or growth and/or after harvesting or harvesting in step (2); The nutrient-rich sewage is used to water fast-growing herbs grown and/or cultivated in land areas.

10. The method of claim 9 wherein the sewage treatment comprises: filtration, and optionally deodorization treatment.

The method according to any one of claims 1 to 10, wherein the fast-growing herbaceous plants grown and/or cultivated in the land area are: vetiver, ryegrass, sudangrass, false sorghum, Mexican corn grass , Alternanthera philoxeroides, Artemisia annua L., Solidago canadensis, Ragweed, Pine herb, Polymer grass, Alfalfa, Mountain bitter, Sandawan, Amaranthus, Eulaliopsis, European chicory, Pelican, Reed, Alfalfa, Grass stilt , rice grass, Spartina alterniflora, foxtail grass, big rope grass, sea king grass, salt grass, sea iris, pennisetum, grassy, king bamboo grass, giant grass, sweet grass, hybrid pennisetum , Du Mu 1 or Su Za 2;

Or fast-growing herbs grown and/or cultivated in water bodies are: Eichhornia crassipes, algae, reeds or alfalfa.

The method according to any one of claims 1 to 11, wherein in the step (1), the use of Pennisetum, grassy grass, yarrow grass, sweet grass, hybrid pennisetum, hollow lotus grass, ragweed , reeds, alfalfa, rice grass, Spartina alterniflora, foxtail grass, big rope grass, sea king grass, hi salt grass, sea iris, fake sorghum or Eulaliopsis, as fast-growing herb, using their roots or stems For asexual reproduction; or use vetiver, ryegrass, sudangrass, fake sorghum, Mexican corn grass, Artemisia annua L., Solidago canadensis, pine vanilla, polymeric grass, alfalfa, mountain bitter, sand sorghum, grain sorghum, European chicory, alfalfa or grass sorghum is used as a fast-growing herb to reproduce with their seeds.

13. A method according to any one of claims 1 to 12, wherein the landfill is: a valley type landfill, or a flat landfill.

14. The method of claim 13 wherein the valley type landfill or the landfill type landfill comprises: a landfill unit (26), a bottom of the landfill unit and an A compaction on the slope (1) a clay layer (5), wherein the A compacted clay layer (5) is provided with a barrier liner layer (6), and the pit bottom A compacted clay layer (5) is provided with a gravel layer (3). The gravel layer (3) is provided with a soil layer (2); the landfill unit (26) consists of a valley space and an upstream and downstream intercepting dam, or a low-lying or artificially excavated pit.

The method according to claim 14, wherein said landfill unit (26) is provided with a B compacted clay layer (33), and said B clay layer (33) is provided with a waterproof layer (18). The waterproof layer (18) is provided with a covering soil layer (17); the covering soil layer (17) has a lateral drainage groove (19) at the edge.

16. The method according to claim 15, wherein the landfill unit (26) is provided with a leachate recirculation pipe (16), a plurality of landfill gas collection wells (20) and a landfill heat collection well (21). );

The cover soil layer (17) is provided with a geothermal well outlet pipe (13) and a geothermal well return pipe (14) inserted into the landfill heat collecting well (21), and the geothermal well outlet pipe (13) and landfill heat utilization are utilized. The device (10) is connected, the landfill heat utilization device (10) is connected to the geothermal well return pipe (14), and the geothermal well outlet pipe (13) is provided with a ground source heat pump (12), and the geothermal well return pipe (14) There is a geothermal well recirculation pump (11);

The cover soil layer (17) is further provided with a gas collecting pipe (22) connected to the landfill gas collecting well (20), and the gas collecting pipe (22) is connected with the gas storage tank (24), and the gas collecting pipe (the gas collecting pipe) 23) There is an air pump (23); The landfill also includes a groundwater monitoring well (25) located in the groundwater layer (4) adjacent to the pit; a vertical drain (32) is disposed adjacent to the groundwater monitoring well (25).

The method according to any one of claims 14-16, characterized in that the barrier liner layer (6) is composed of HDPE geomembrane, or HDPE geomembrane and geocomposite composite intumescent liner. Composite liner layer.

The method according to any one of claims 14-17, characterized in that the geothermal well outlet pipe (13) inserted into the landfill heat collecting well (21) is provided with a plurality of small holes at the end.

The method according to any one of claims 14-18, characterized in that the landfill gas collection well (20) consists of a jacket (27) and an inner sleeve (28), the jacket (27) The annulus between the inner sleeve and the inner sleeve (28) is filled with gravel (29), and the outer sleeve (27) and the inner sleeve (28) are provided with a plurality of small holes, and the inner sleeve (28) is connected with the gas collecting pipe (22). .

The method according to any one of claims 14 to 19, characterized in that the leachate extraction pipe (7), the leachate recirculation pipe (16), the gas collection pipe (22), the geothermal well outlet pipe ( 13), the wall material of the geothermal well return pipe (14), the outer casing (27) and the inner casing (28) is PVC or HDPE; the landfill heat collecting well (21) is made of PVC, HDPE, glass, FRP, ceramic or cement.

A method according to any one of claims 14-20, characterized in that the pervious liquid refill pipe (16) in the landfill unit (26) is provided with a plurality of small holes.

The method according to any one of claims 14 to 21, wherein the plurality of landfill heat collecting wells (21) are arranged in a hexagonal shape, and two adjacent landfill heat collecting wells (21) ) Distance 200~ 500m, landfill heat collection well (21) Depth is 1/2~2/3 of landfill space unit (26), landfill heat collection well (21) bottom hole distance landfill unit (26 ) The bottom is 1~2 m.

23. The method according to any one of claims 14-22, wherein the plurality of landfill gas collection wells (20) are arranged in a hexagonal shape, adjacent to two landfill gas collection wells (20 The distance from the landfill gas collection well (20) is 1/3 to 1/2 of the height of the landfill unit (26), and the landfill gas collection well (20) is at the bottom of the landfill unit ( 26) Top 2~5 m.

24. In accordance with the method of any of the strong requirements 1-23, the following steps are also included:

(5) Covering the final landfill plant with a layer of plain soil after the landfill is completed.

25. The method of claim 24, further comprising the steps of:

(6) Vegetation restoration in the landfill: lay a layer of 5~200cm thick (preferably 20~100cm) planting soil on the covered soil, and then plant herbaceous plants, shrub plants and arbor plants; the planting soil is soil Peat The soil and the decomposed organic matter are formed by mixing 3~5: 1~2: 1 (by wt).

26. The method of any of claims 1-25, further comprising:

(7) The utilization step of leachate in the fast-growing herb landfill, the utilization step comprising the following sub-steps:

(al) collecting leachate from the landfill to the leachate pond;

(a3) The leachate after denitrification is acidified by an acidification tank and degraded by an anaerobic reactor, and the methane produced by the fermentation degradation is stored after being removed by the formazan recovery tower; the sludge formed by the fermentation degradation is sent to the sludge for concentration. Pool concentration; '

( a4 ) The clarified liquid after fermentation degradation is clarified by the intermediate settling tank and sent to the biological contact oxidation tower for oxidation, and then clarified by the secondary settling tank and sent to the reverse osmosis membrane device for filtration, and the filtered clean water is discharged to the finished water tank; The sludge in the intermediate and secondary sedimentation tanks is sent to the sludge concentration tank for concentration;

(a5) The concentrated solid particles in the sludge concentration tank are dehydrated by a dehydrator to form a mud cake, the mud cake and the new biomass are re-buried, and the separated sewage is returned to the homogenization tank.

27. The method according to any one of the above 1-26, further comprising:

(8) A comprehensive utilization step of heat in the plant landfill, the step comprising the following sub-steps: (bl) collecting heat generated by the biomass landfill through the geothermal well;

( b2 ) The heat collected in step (bl ) is sent to the steam turbine generator set by the generator heat pump, and is sent to the adsorption refrigeration unit for cooling by the heat pump of the refrigerator, and is sent to the factory for heat supply by the heat pump of the factory equipment. The heating pump is fed into the radiator for heating, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crops;

(b3) The hot water discharged from the steam turbine generator set outlet in the step (b2) is sent to the adsorption refrigeration unit by the heat pump of the refrigerator, and is sent to the factory for heat supply by the factory equipment heat pump. The pump is sent to the radiator for heating, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crops;

(b4) The hot water used in the refrigeration process of the adsorption refrigeration unit in step (b2) is sent to the radiator heating by the heating pump, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crop;

(b5) The hot water used in the hot standby heating process in the step (b2) is sent to the radiator heating by the heating pump, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crops; (b6) The hot water used in the refrigeration process of the adsorption refrigeration unit in step (b3) is respectively sent to the radiator by the heating pump, and the heat pump is sent to the breeding pond and the paddy field to provide heat for the crop;

28. The method according to any one of the above 1-27, further comprising:

(cl) collecting biomass landfill gas to the gas collection tank;

(c3) the methane separated in the step (c2) is purified by an adsorption device and compressed and collected in a methane storage tank; the nitrogen is purified by a nitrogen purifying device and compressed and collected in a nitrogen storage tank; the carbon dioxide is purified by a carbon dioxide purification device. It is compressed and collected in a carbon dioxide storage tank.

29. The method according to any one of the above 1-28, further comprising:

(10) The processing steps for producing malodor in a plant landfill site, including the following sub-steps:

(dl) collecting the gas generated by the decomposition process of the biomass into the gas collection tank, and collecting the liquid generated by the decomposition process of the biomass into the leachate pool;