48results about How to "Improve carbon sequestration performance" patented technology

The invention discloses a heavy metal contaminated soil passivation conditioning agent, and an application thereof. The conditioning agent comprises a part A, a part B and a part C. The part A comprises organic matter, a fermentation agent, and a microbial agent. The part B comprises fly ash, humate, biomass carbon, a phosphorus-containing fertilizer, and granular activated red mud. The part C comprises bentonite and iron powder. The weight ratio of the part A to the part B to the part C is (20-30) to (20-40) to (40-60). When the conditioning agent provided by the invention is used in heavy metal contaminated soil treatment, the cost is low, the dose is low, reparation time is short, operation is simple, implementation is easy, and the application range is wide. The influence on soil original pH value is low, the reparation efficiency is high, and the reparation effect is stable. The conditioning agent has a passivation effect upon heavy metals, and performs bidirectional conditioning upon soil pH value. The conditioning agent is suitable for agricultural mechanized operation, and has a sustained-release function.

The invention discloses a biofertilizer for mycorrhizae and a preparation method. The preparation method comprises the following steps: (1) sieving vermiculite; (2) grinding branches and fallen leaves, and sieving the powder; (3) sterilizing the sieved vermiculite and the ground branches; (4) proportionally mixing cooled vermiculite with cooled ground branches, and mixing the mixture with an MMN liquid medium; (5) filling the MMN liquid medium into a polyethylene culture bag; (6) inoculating various ectomycorrhizal fungi; (7) carrying out light-tight culture in a greenhouse or an incubator; (8) mixing with biological activated carbon, organic fertilizers, a biological water-retaining agent and bioactive growth promoting components; (9) packaging and storing. Compared with existing biofertilizers, the biofertilizer disclosed by the invention can obviously improve various nutrient element absorbability of plant root systems, promote growth of seedlings, simultaneously improve the tolerance of plants to environments such as drought, saline and alkaline environments, infertility and the like and the capacities of the plants in resisting soil-borne diseases and pests, activate beneficial microorganisms in rhizosphere soil, enhance photosynthesis, improve the carbon fixation capacity of the plants, optimize the quality of the seedlings and increase the market value.

The invention discloses a biochar-based plastic film material and a preparation method thereof. The biochar-based plastic film material is prepared by mixing the following raw materials in parts by weight: 20-40 parts of modified biochar, 40-60 parts of polyethylene, 1.5-2 parts of dispersing agent and 1-2.5 parts of coupling agent. According to the invention, the biochar is combined with plastic by a modification technology, to reduce the dosage of the plastic in agriculture and accelerate the decomposition course to plastic products so as to achieve the purpose of protecting the environment.

The invention discloses a management method for a eucalyptus tree man-made forest. The management method comprises the steps of: preparing a forest land: cutting up and retaining logging residues in the forest land, performing soil preparation, then digging plant holes, wherein during arrangement of the plant holes, every two narrow rows and one wide rows form a group, multiple same groups are arranged in sequence, and after the plant holes are dug, an organic fertilizer is applied to each plant hole; performing forestation: selecting clone eucalyptus trees and native tree species to perform forestation, planting the eucalyptus trees on the narrow rows, and planting the native tree species on the wide rows; performing tending after forestation; performing fertilization: and performing cutting and constructing a multiple layered forest. According to the management method disclosed by the invention, by virtue of the means of adjusting the structure of the tree species, improving fertilizing and tending manners and updating a cutting mode, the productivity and carbon stock of the eucalyptus tree man-made forest are significantly improved, the capabilities of emission reduction and sink increment of the eucalyptus tree man-made forest are increased, the economic benefit and ecological benefit of the eucalyptus tree man-made forest are improved, the forest land is fully utilized, water and soil losses and land capability decline are effectively prevented, and sustainable management of the eucalyptus tree man-made forest is realized.

The invention discloses a degradable lunch box, which is prepared from the following raw materials by weight: 40-50 parts of poly beta-hydroxybutyrate, 20-30 parts of modified polybutylene succinate,20-30 parts of composite of biochar, 10-20 parts of lignocellulose aerogel, 10-20 parts of polylactic acid, 5-10 parts of modified hydroxypropyl acetylated corn starch, and 5-8 parts of a coupling agent. According to the present invention, the degradable lunch box has characteristics of low production cost, good overall strength and good temperature resistance, and can be rapidly degraded in the natural environment.

The invention relates to a method for preparing a hierarchical-pore phosphorus-doped carbon material from biomass. The method comprises the following steps: firstly, crushing the biomass into tiny particles; then uniformly mixing the crushed biomass particles with a phosphoric acid-containing solution according to a certain ratio to form a mixture; putting the mixture into a hydrothermal reactionkettle, and carrying out a hydrothermal reaction at a certain temperature to generate hydrothermal carbon; dehydrating and drying the hydrothermal carbon obtained after the hydrothermal reaction; andputting the dried hydrothermal carbon into a pyrolyzing furnace, and carrying out rapid pyrolysis under the protection of an inert atmosphere to obtain a hierarchical-pore phosphorus-doped carbon material after rapid pyrolysis. According to the method disclosed by the invention, a rapid pyrolysis scheme is combined with phosphoric acid hydrothermal pre-carbonization, so a very ideal effect can beachieved only by performing rapid pyrolysis in a very short time, carbon preparation efficiency is greatly improved, and energy consumption is remarkably reduced; and meanwhile, due to the existence of phosphorus, a good carbon sequestration effect can be achieved, and carbon yield is increased.

The invention discloses methods for preparing and applying a bioactive fertilizer with grass carbon as a raw material. The preparation method is characterized by taking active ingredients including grass carbon and vermiculite as main raw materials, mixing grass carbon with vermiculite in a volume ratio of 1:2, then mixing the mixture with an MMN liquid medium, culturing the materials at a constant temperature of 25 DEG C for 15 days, and then mixing the materials with bioactive carbon, bioorganic fertilizers, a water-retaining agent and bioactive growth promoting ingredients uniformly under aseptic conditions, thus obtaining a solid biological mycorrhiza preparation. Compared with existing biofertilizers, the bioactive fertilizer disclosed by the invention can obviously improve various nutrient element absorbability of plant root systems, promote growth of seedlings, simultaneously improve the tolerance of plants to environments such as drought, saline and alkaline environments, infertility and the like and the capacities of the plants in resisting soil-borne diseases and pests, activate beneficial microorganisms in rhizosphere soil, enhance photosynthesis, improve the carbon fixation capacity of the plants, optimize the quality of the seedlings and increase the market value.

The invention provides a moisture management method for carbon sequestration and carbon sink increase for wetlands, which includes: firstly, selecting a meadow or marsh with logged water on the surface, determining environmental factors of the wed land, determining water content of soil, taking soil for test 5-15cm below surface vegetation on early May, beginning of the year, loading the fresh soil sample below the vegetation with a soil box, and drying the soil to constant weight at about 80 DEG C, wherein soil water content = soil dry weight-soil dry weight/soil dry weightX100%, and the soil water content is required to be 40%-70%; and secondly, determining types of the wetland soil, determining the types to be meadow soil, Baijiang soil or marsh soil, regulating moisture, selecting a water source from underground water or unpolluted river and lake fresh water, and irrigating by direct water diversion through ditches or pumping underground water with a water pump. By the moisture management method, covered rate of the wetland can be increased evidently, vegetation carbon sequestration can be improved, soil carbon storage can be increased, emission of greenhouse gases is reduced,investment is low, cost is low, and the moisture management method is highly applicable.

The invention discloses a method for improving the carbon sequestration capability of marsh lands and a method for evaluating the sequestration capability of marsh lands. The methods are used for solving the problems that the biological carbon sequestration capability is reduced due to the vegetation degradation of the existing natural marsh lands, the carbon sequestration capability of water bodies of the natural marsh lands is low, and no method is provided for simply and quickly evaluating the carbon sequestration capability of the marsh lands. The method comprises the steps of 1, carrying out a building project for improving the carbon sequestration capability of the marsh land in a target area; 2, releasing and reproducing aquatic economic animals for improving the carbon sequestration capability of the marsh land; and 3, recovering the vegetation for improving the carbon sequestration capability of the marsh land. The method for evaluating comprises the step of evaluating the carbon sequestration capability of the marsh land in the target area according to the total sequestrated carbon of the carbon sequestration organisms in the marsh land in a growing period. The method is applied in the technical field of ecological science.

The invention provides a method for jointly restoring heavy metal contaminated soil through chemical passivation-microorganism. The method comprises the steps that the heavy metal contaminated soil is jointly restored by adding a passivator and functional bacteria into the heavy metal contaminated soil, and the functional bacteria are bacterial strains which are obtained by screening aboriginal bacteria of the heavy metal contaminated soil and have adsorption capacity and tolerance to heavy metal. The method of chemical passivation-microorganism joint restoring is simple, economical and safe, the heavy metal contaminated soil can be effectively restored, and the soil fertilizer efficiency can be improved while no new contaminator is introduced.

The invention discloses a method of increasing soil carbon sequestration capacity using organic fertilizers. The principle of the method is that after the organic fertilizers are applied to soil, the soil is improved structurally, the carbon sequestration surface area of soil aggregate is increased, and carbon sequestration capacity is enhanced. Due to the fact that the soil has the capacity for carbon emission remission and the potential for carbon emission reduction and is huge in size, the stability, the growth or release of a soil carbon pool is closely related to changes in CO2 concentration of the atmosphere. Soil organic matters are increased, the capacity, for isolating and absorbing organic carbon, of the oil aggregate is increased, organic compounds are restrained from breaking down into CO2, and therefore a great buffering effect on reduction of the greenhouse effect is achieved.

The invention discloses a planting method for improving growth and development and fruit quality of tomatoes. The planting method comprises the steps that tomato seedlings are cultivated; LED plant growth lamps are adopted as light sources to be arranged above the tomato seedlings for irradiation, and the light period every day is set to be 12 h illumination/12 h non-illumination or 16 h illumination/8 h non-illumination; when the tomatoes enter the flowering stage, an EDTA-Fe aqueous solution with the concentration of 100-200 [mu] mol.L <-1 > is sprayed to tomato plants, the EDTA-Fe aqueous solution is uniformly sprayed to the front and back surfaces of leaves once a week, and the tomato plants are irrigated with a nutrient solution containing no Fe element once every other month to ensure sufficient nutrients; and after the EDTA-Fe aqueous solution is sprayed for 55-65 days, when 80% of the tomatoes on the tomato plants turn red and peels are slightly soft, spraying of the EDTA-Fe aqueous solution is stopped. According to the planting method for improving growth and development and fruit quality of the tomatoes, the tomato quality improvement effect is optimal by spraying 100 to 150 [mu] mol.L <-1 > EDTA-Fe aqueous solution on the surfaces of the leaves in the photoperiod of 16 h illumination/8 h non-illumination.

The invention relates to a method for increasing the carbon sequestration amount of severely-degraded leymus chinensis meadow vegetation. The method comprises the steps that 1, soil preparation is conducted on the position, without leymus chinensis dominant species coverage or with low plant coverage rate, in a preset area in shallow ploughing and light raking manner, the soil preparation time isthe first ten days of April in the same year, soil blocks need to be smashed in the soil preparation process, and the soil turning depth needs to be 6-10 cm; 2, a predetermined ecological preparationis applied to the prepared land in the first ten days or the middle ten days of April of the same year; 3, a predetermined fertilizer is applied to the land to which the predetermined ecological preparation is applied in the first ten days or the middle ten days of April in the same year; 4, predetermined grass seeds are sowed in the middle ten days or the last ten days of April in the same year on the land to which the predetermined fertilizer is applied; and 5, later-period management and protection are conducted, wherein watering is mainly conducted in the sowing period. The method can effectively improve the growth environment of the vegetation, improve the productivity and carbon sequestration capacity of the vegetation and increase the carbon sequestration amount of the vegetation.

The invention discloses a quick carbon fixation method for underbrush by katsumada galangal seeds. The quick carbon fixation method comprises the following steps of collecting katsumada galangal seedsin August to September of the first year, performing sowing, and raising seedlings; planting the katsumada galangal seedlings at underbrush of certain crown density in the next spring, digging horizontal ditches along the contour line, and performing planting; and after the third year, performing plant dividing of chlophylly block subterraneous roots and stems of the katsumada galangal, and performing transplanting on the katsumada galangal divided plants in spring, summer and late autumn continuously, to realize continuous plant dividing and transplanting without raising the seedlings. The method is simple in plants, high in adaptability, and easy to operate, and the coverage rate can 50% in the same year; and besides, except the dry season, continuous plant dividing for planting can beperformed, so that the area can be quickly enlarged, the carbon fixation capacity and the soil fertility of forests can be improved, the ecological benefits are increased, and the purpose of sustainable management of forestry `can be realized.

The invention relates to a carbon sequestration unit gas circulation exchange system, the carbon sequestration unit gas circulation exchange system comprises a first culture unit, a second culture unit, a carbon capture device, a gas purification device, an energy collection device and an energy conversion device, fungi are arranged in the first culture unit, and algae and/or plants are arranged in the second culture unit. The carbon capture device is communicated with the first culture unit and the second culture unit, and the gas purification device is communicated with the first culture unit and the second culture unit. The energy conversion device is connected with the energy collection device to drive the carbon capture device, the gas purification device, the first culture unit and the second culture unit to form carbon gas internal circulation. The carbon sequestration unit gas circulation exchange system provided by the invention can realize a carbon gas internal circulation function, effectively improves the stability, carbon sequestration capability and efficiency of the system, achieves the purpose of low-energy-consumption carbon sequestration, and can further improve the yield increasing effect of crops.

The invention discloses a method for preparing carbon sequestration biochar by using mixed sludge. According to the method, the sludge of a pharmaceutical factory and municipal sludge are mixed and ground, and the biochar is prepared at a certain pyrolysis rate, so comprehensive utilization of inorganic nutrient elements of the two kinds of sludge is achieved, the carbon content of a single kind of sludge biochar is increased, and a good carbon sequestration effect is found according to verification via an aging experiment. The preparation method comprises the following steps: naturally airingthe sludge; grinding the sludge until a particle size is 5 mm, putting the sludge into a muffle furnace, introducing nitrogen at a speed of 200 ml/min, operating the muffle furnace after air in the furnace is emptied in 1 hour, regulating the temperature of the muffle furnace to a target temperature, setting a heating rate to be 10 DEG C*min <-1 >, and keeping the temperature for 4 hours after the target temperature is reached so as to allow the biomass to be fully pyrolyzed. The method is simple in process and low in cost, the obtained pharmaceutical factory sludge-municipal sludge biochar has more nutrient elements and stable chemical properties, the carbon stability of the obtained biochar is higher than the carbon stability of single sludge biochar, and the method has good applicationprospects in the aspects of soil improvement, environmental remediation and waste resource utilization.

The invention relates to the technical field of soil carbon sequestration, and particularly discloses a method for improving the carbon sequestration capacity of soil in a newly-cultivated cultivated area, which comprises the following steps: S1, grooving in a newly-cultivated area side by side, and accumulating the soil dug by grooving on the side surface of a groove; s2, a soil carbon sequestration conditioner is prepared, and water is added for dilution; s3, the conditioner prepared in the step S2 is poured into the groove formed in the step S1, and the dug soil is backfilled; s4, after backfilling is conducted for 3-5 days, rotary tillage is conducted on the backfilled soil, so that the soil in different areas is evenly mixed; s5, the area subjected to rotary tillage in the step S4 is compacted, and humus soil is laid on the surface of the soil; s6, uniformly spraying a microbial agent into the humus soil, and then planting crops at the sowing time; according to the method provided by the invention, the soil in the newly cultivated area can be effectively improved, and the carbon sequestration capability of the soil can be effectively improved; the method is simple in step, easy to operate, short in improvement process time, quick in effect and easy to popularize.

The invention discloses a method for preparing a carbon sequestration filler by using waste concrete. The method for preparing the carbon sequestration filler by using the waste concrete comprises the following steps of: preparing raw materials: firstly, crushing and grinding blocked waste concrete to respectively obtain concrete aggregate and concrete powder, and preparing an excitation solution and an adsorbent, wherein the excitation solution is composed of sodium carbonate, potassium carbonate and water, the weight ratio of sodium carbonate to potassium carbonate to water is (2-5): (1-5): 100, the adsorbent is composed of a zeolite imidazate framework material and activated carbon, and the weight ratio of the zeolite imidazate framework material to the activated carbon is (3-10): 30; and adding the excitation solution and the adsorbent to the concrete, wherein the activity of substances in the concrete is increased by using the excitation solution, so that the substances can have better carbonization reaction with carbon dioxide, the better carbonization effect is achieved, and the adsorbent can adsorb and fix carbon dioxide in gas through the material characteristics so as to achieve better carbon sequestration effect.

The invention provides a magnet pyrolysis reactor. The magnet pyrolysis reactor comprises a vacuum system, a pyrolysis cavity, a storage cavity and a power supply, wherein the pyrolysis cavity comprises a cavity body, a coil, a heat conducting tube, a solid-liquid outlet and a filter, the heat conducting tube is arranged in the cavity body, the solid-liquid outlet is formed in one end of the heat conducting tube, the filter is arranged at the other end of the heat conducting tube, the heat conducting tube is sleeved with the coil, the coil is electrically connected with the power supply, the storage cavity is arranged outside the cavity body and is communicated with the solid-liquid outlet, and the vacuum system is communicated with the cavity body. The technical problem that a waste pyrolysis technology in the prior art is low in efficiency and is unreliable is solved by adopting the magnet pyrolysis reactor.