86results about How to "Shorten composting time" patented technology

The invention relates to a kitchen waste recycling automatic treating all-in-one machine and a treatment process thereof. The all-in-one machine comprises a crushing device, a squeezing device, an oil-water separating device and a biological treating device, wherein the crushing device is used for crushing kitchen waste into residue bodies with the food particle size of 0.1 to 0.3 millimeters; liquid in solid residues squeezed by the squeezing device accounts for 7 to 15 percent of the total weight of solid residues; the solid residues enter the biological treating device for treatment finally, and a microbial agent is put into a fermentation tank in the biological treating device, heated and subjected to batch-type stirring; the microbial agent consists of actinomycetes, lactobacillus, saccharomycetes and photosynthetic bacteria and are fed in a mass ratio of 3:5:7:4; 0.01 to 2 mass parts of the microbial agent are added into 100 mass parts of solid residues; and the fermentation time of the microbial agent is 3 to 15 hours. The integrated equipment is small in size, compost time can be shortened greatly, and the treatment efficiency is improved.

The invention provides a sludge composting method, and relates to a sludge treatment method which comprises the steps of preferable accessory selection, CK21 fungus spraying inoculation, heavy metal passivation and powder granulation, and then three-dimensional composite biological organic fertilizer with organic, inorganic and microbial active constituents is obtained. Mushroom compost and pig manure are used as accessories which are easily obtained and degraded, the stacker fermentation time is short, only one time of fermentation is needed, the C / N ratio can be effectively adjusted, and the water content of the sludge is reduced; and the efficient beneficial bio-fungus community CK21 is adopted. The microbial concentration is high, the secretion ability of the enzyme is strong, organic matters can be quickly decomposed so as to prevent the corruption of the organic matters, no odor exists, sludge is used for CK21 inoculation, fermentation starts fast, and the effect is good; and the product is inoculated with the CK21 fungus secondarily so as to further balance and activate nutrients, and the microbial natural reproduction is utilized to realize the is called flower dipping absorbing of the plants to nutrients. The invention has the advantages of optimizing the composting conditions, shortening the composting time, reducing energy consumption of turning, and reducing the damage of the heavy metal on the ecological environment.

The invention discloses a compound microbial agent with a function of effectively degrading cellulose at high temperature. The compound microbial agent contains five actinomycetes: Streptomyces thermoviolaceus, Streptomyces thermodiastaticus, Streptomyces thermocarboxydus, Streptomyces albidoflavus and Streptomyces thermovulgaris, and one bacteria: Brevibacillus borstelensis. The compound microbial agent solves the problem of slow composting and long cycle of garden waste due to the limitation in cellulose degradation difficulty, accelerates cellulose degradation in the composting process, shortens the fermentation period, and improves the conversion efficiency, thereby having a broad application prospect in the aspects such as the application of composting treatment and resource utilization of garden waste, and the like.

The invention belongs to preparation for microorganism-decomposing agents, and in particular discloses a method for preparing a microorganism-decomposing agent used for producing a biological organic fertilizer by livestock and poultry manure fermentation. The method comprises the following steps of: respectively inoculating Saccharomyces cerevisiae AS1.2414 and Saccharomyces cerevisiae AS1.1854 into a culture medium which contains a carbon source, a nitrogen source and nutrient substances for fermentation; inoculating Rhodopseudomonas palustris AS 1.2349 into a culture medium which contains nutrient substances for fermentation; and mixing saccharomyces cerevisiae fermentation liquor, rhodopseudomonas palustris fermentation liquor and rhodopseudomonas palustris fermentation liquor according to a volume ratio of 50:25:25, and taking a mixture of rice bran and bran as a carrier to adsorb the mixed fermentation liquor so as to prepare a solid decomposing agent. The method solves the problems of the quality and the speed of composting influenced by the relatively low composting speed in the composting process of the prior art, and has the advantages of effectively reducing the composting time, improving the compost maturity and the production efficiency, and the like.

The invention provides a biomass organic fertilizer and a preparation method thereof, which belong to the field of biomass fertilizer production. The biomass organic fertilizer comprises the following raw material in parts by weight: 20-30 parts of stalk carbon, 30-40 parts of livestock and poultry night soil charcoal, 21-44 parts of decomposed chicken manure, and 5-10 parts of pyroligneous liquor. The decomposed chicken manure is composed of chicken manure and a fermentation inocula and a stabilizing agent through fermentation, the fermentation inocula comprises Bacillus licheniformis, bacillus subtilis and aspergillus oryzae. The biomass organic fertilizer has the advantages of good fertilizer efficiency and no chemical pollution.

The invention relates to a pig-manure compost preparation method with fast temperature rise and dehydration and less composting time. The prior pig-manure high-temperature composting process has the problems of slow temperature rise, high moisture content of compost products, long composting time and the like. The method comprises the steps: mixing pig manure which is produced by large-scale piggeries and has the moisture content of between 70 and 75 percent with fillers, thoroughly decomposed pig-manure compost and bamboo charcoal particles; placing the mixture in a composting groove; composting the mixture by adopting a static forced ventilation mode with the ventilation volume between 20 and 30 m / (h.t) for 30 to 36 days to thoroughly decomposing the compost; and obtaining a pig-manure compost product, wherein the fillers are sawdust or straw. The method can reduce nutrient loss in a composting process and guarantee the fertilizer efficiency of the compost. The method has the advantages of convenient application, low cost, no secondary pollution caused by a production process, significant economic and environmental benefit.

The invention relates to a biodegradable sludge-compost fermentation conditioning agent. The sludge-compost fermentation conditioning agent comprises an organic conditioning agent and decomposed sludge with the mass ratio of 1:4-10. In order to promote decomposing of compost, accelerate heating of compost, shorten fermentation period and effectively reduce odor for promote smooth performing of the fermentation process, a sludge compost additive can be added according to the circumstance. The addition amount of the sludge compost additive is 0.05%-1% by weight of decomposed sludge. The conditioning agent is biodegradable, free of residue, free of secondary pollution, high in mechanical strength and good in water adsorption property, is capable of effectively improving the sludge compost structure and improving oxygen diffusion efficiency, and also is recyclable through screening, helps to reduce the usage amount of the fresh conditioning agent and reduce sludge processing cost, and has good environment benefit and considerable economic benefit.

The invention discloses a method for preparing an organic fertilizer by fermenting chicken manure by using compound bacteria. The method comprises the steps: mixing chicken manure, crop straw powder and a compound bacterium fermenting agent to obtain a mixture; controlling the water content of the mixture at 45%-55%, meanwhile, spraying a fermentation liquid on the mixture by using a sprayer, andcarrying out fermentation treatment; after fermenting the chicken manure, carrying out composting; delivering the chicken manure into a curing warehouse, stacking the chicken manure to form a conicalmanure pile with the height of 2-3m, and carrying out low-temperature drying at room temperature; and adding the chicken manure into a mixer for mixing, and then, carrying out granulation in a granulator to prepare an organic granulated fertilizer. The method has the advantages that the method is simple, the fertilizer efficiency can be increased, the environment can be protected, the ecological balance of microorganisms in soil can be effectively reduced, and straws and the chicken manure can eliminate soil hardening, improve the permeability of the soil and reduce the residues of chemical substances in the soil.

The invention provides a rapid livestock manure composting method. At present, the resource utilization of agricultural wastes such as livestock manure and straw is a difficult problem, straw incineration and disorderly manure discharge cause serious environmental pollution and resource waste, and the utilization rate is only about 20%. The method provided by the invention comprises the followingsteps: taking fresh cow dung as a composting material and crushed corn straw as a conditioning material, and adding white-rot fungi, bacilli, earthworms and biochar to compost for performing auxiliarycomposting, wherein the addition amount of the crushed corn straw is 2% of the quality of the dried cow dung, the length of the corn straw is 2-3cm, and 10 adult earthworms are added to per cubic meter of compost; adding a bacterial agent in the late stage of high temperature, and taking wheat bran as an inoculation matrix, wherein the bacterial agent is prepared from white-rot fungi, bacilli, wheat bran and water in a ratio of 1:1:10:10; and applying 50g of bacterial agent to per kg of compost, wherein the addition amount of the biochar is 5% of the quality of the dried cow dung. The methodprovided by the invention is applied to rapid livestock manure composting.

The invention discloses a method for making an organic fertilizer for Clivia miniata and relates to a method for making an organic fertilizer. The invention solves the technical problems that the conventional fertilizer which is composted by using manure of livestock and poultry and a common carbon source is weakly alkaline, is not suitable for the growth of the Clivia miniata, and is long in composting time. The method comprises the following steps of: 1, uniformly mixing fish scale or fishbone dust, leaves or straws, manure of livestock and poultry and soil, spraying a microbial fermentation inoculum, and regulating the moisture to obtain a material; 2, piling the material into a windrow, covering a plastic film on the surface layer of the windrow, and composting; and 3, drying and crushing to obtain the organic fertilizer for the Clivia miniata. By the method, the composting time is shortened from 15 months to 4 months; and the prepared organic fertilizer for the Clivia miniata is weakly acidic and meets requirement on the pH value of the soil for the growth of the Clivia miniata.

The invention relates to the field of mixed garbage collection, in particular to a high-efficiency aerobic composting device for mixed garbage. The device comprises a raw material conveying system, a material distributing system and a fermenting system, wherein the raw material conveying system comprises a first conveying line for conveying municipal sludge, a second conveying line for conveying livestock manure and kitchen garbage and a third conveying line for conveying agricultural and forest residuum; the material distributing system comprises a first material storage cabin for storing municipal sludge, a second material storage cabin for storing livestock manure and kitchen garbage, a third material storage cabin for storing agricultural and forest residuum and a mixer for mixing garbage raw materials; a discharging opening of the first material storage cabin, a discharging opening of the second material storage cabin and a discharging opening of the third material storage cabin are communicated with a feeding end of the mixer. The device can recover varieties of garbage in high efficiency, a garbage collecting and fermenting technology is provided at the same time, and high-efficiency fermentation and maturity are achieved.

The invention discloses a preparation method of a composite bacterial agent for sludge composting and application thereof. The preparation method comprises the following steps: separately culturing bacillus altitudinis, purple streptomyces variabilis, bacillus stearothermophilus, bacillus subtilis and bacillus licheniformis, then mixing according to a volume ratio of bacterial liquid to obtain mixed bacterial liquid, then inoculating a fermentation medium with the mixed bacterial liquid, and performing enlargement culture to obtain the composite bacterial agent for sludge composting. The composite bacterial agent is mainly applied to high-temperature sludge composting, raises the fermentation temperature fast, maintains high temperature for a long time, can shorten the composting time, reduces the moisture content of a composted material, is low in production cost, environmentally friendly, pollution-free, excellent in performance and high in efficiency, and has relatively good economic benefits and social benefits.

The invention discloses a composting method for adding auxiliary materials to quickly remove tetracycline antibiotics in biogas residue. The composting method comprises the following steps: mixing biogas residue with fresh pig manure, wheat dry straws and wood vinegar which is diluted by 500 times according to parts by weight, evenly stirring to obtain mixture, adding charcoal into the mixture, and evenly mixing to obtain composting raw materials, wherein the dry substance ratio of the mixture to the charcoal is (80-100):1; putting the composting raw materials in an aerobic fermentation tank to be subjected to aerobic composting to obtain a composting product of which the antibiotics are removed. According to the composting method, the auxiliary materials can be added to shorten compost body warming time and prolong a high temperature phase, antibiotic degradation in a biogas residue composting process is accelerated, antibiotic residues in the composting product can be lowered, and the subsequent utilization risk of the biogas residues is lowered.

The invention discloses a straw type agricultural waste crushing and composting integral control device which comprises a material composting chamber, a straw crushing device, a temperature oxygen control system, a humidity control system and a discharge system, wherein a feeding hole, a measuring hole and a standby hole are formed in the material composting chamber; a groove is formed in the bottom of the material compositing chamber; the upper part of the material compositing chamber is connected with the straw crushing device; the lower part of the material compositing chamber is connectedwith a micro-pore net, a porous plate and a cold-hot air mixing chamber; the straw crushing device comprises a feeding driving motor and double mixing blades; the temperature oxygen control system comprises a temperature measurer, an oxygen measurer, a temperature oxygen cascade control system, an air blower, a hot resistance wire, an air tube, a hot air chamber, a bypass cold air valve, a rotor flowmeter and a cold-hot air mixing chamber; an air tube hole is formed beside the cold-hot air mixing chamber; a percolate discharge hole is formed in the lower part of the cold-hot air mixing chamber; the humidity control system comprises a humidity measurer, a spraying device, a straight-in single-base valve and a humidity controller; the discharge system comprises a discharge groove, a discharge driving motor, rolling wheels, a discharge hole and a push-pull type baffle plate. The invention further discloses two straw type agricultural waste crushing and composting methods of fixed value continuous control and programmed control. By adopting the device, automatic material feeding and discharge, automatic crushing and composting fermentation can be implemented in the straw type agricultural waste treatment process, automatic control on humidity, temperatures and oxygen in the composting process can be achieved, the labor and materials can be saved, meanwhile, the compositing time ofagricultural wastes can be shortened, and composting conditions can be optimized.

The invention relates to an organic fertilizer deodorization ripener, which consists of zeolite, rare earth, green vitriol, bitter salt, turf, caragana microphylla powder and sweet straw dregs. The organic fertilizer deodorization ripener has the functions of catalyzing, activating, degrading, transforming and fermenting and has the advantages of short fertilizer forming period and quick rotten speed. Compared with the ordinary method, the ripener can save the composting time by more than two thirds, rot the organic fertilizer in 3-5 days, effectively remove the stink of the organic fertilizer in 2-3 days, and lead the fertilizer to give sweet and sour odor. The organic fertilizer deodorization ripener has the advantages of simple production, easily-achieved raw materials, low production cost and little dosage. The organic fertilizer made of the organic fertilizer deodorization ripener has more than 30 percent of organic matters, not less than 4 percent of NPK total nutrient contents, less than 20 percent of water and pH value of 6-6.5.

The invention discloses a three-stage inoculation process and microbial agents for composting a lignocellulose raw material. In three-stage inoculation, the microbial agents are a high temperature agent, a lignocellulose degrading agent and a cellulose degrading agent, the conventional one-time addition of the agents is changed into three-time addition, the high temperature agent is added in the early stage of piling to ensure that a pile body is subjected to high temperature and the influence of the high temperature on the lignocellulose degrading agent is avoided; the lignocellulose degrading agent is added in the later stage of high temperature and effectively degrades lignocellulose, and the lignocellulose is prevented from resisting cellulose degradation; and the cellulose degrading agent is added in the later stage of the action of the lignocellulose degrading agent to degrade cellulose. In the new three-stage composting fermentation inoculation process, the effects of the high temperature agent, the lignocellulose degrading agent and the cellulose degrading agent can be fully achieved, the composting efficiency is improved, the composting quality is improved, the composting period is shortened, and the process is a new process for composting the lignocellulose raw material.

The invention relates to a fertilizer preparation method, in particular to a method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer, and aims to solve the problem that existing methods of using corn straw as a raw material for composting are long in composting time and bad for storage and utilization of nutrition. The method includes: step 1, feeding corn straw into a smasher after feeding the corn straw into a high-speed vibration screen to enable a material to be in a suspended or half-suspended state; step 2, at normal pressure, soaking corn straw skin in soaking liquid, extruding out low-concentration waste liquid through an extruder after soaking, and collecting the low-concentration waste liquid; step 3, using a two-roller mill to mill the corn straw skin raw material after being soaked, feeding size after milling and separating through the two-roller mill into a high-concentration pulping machine, extruding out high-concentration waste liquid through the extruder after pulping, and collecting the high-concentration waste liquid; step 4, concentrating the low-concentration waste liquid, and mixing the same with the high-concentration waste liquid and waste residue obtained in the step 1 for composting; step 5, discharging, packaging or mixing with sterilized clay for granulation to complete. The method is used for preparing the fertilizer.

A vermiculite oxygen scavenger and a rapid composting fermentation method for treating sludge by using the same. The sludge composting fermentation oxygen scavenger is a mixture of plant particles and vermiculite, and its weight ratio is 1:1-1.3. Its advantages are: increase the permeability and looseness of the compost; make the compost fermentation process uniform; after composting, the obtained clinker is loose, the vermiculite and the material are easy to separate, and the dominant microorganisms attached to the micropores on the surface can be separated with time. They are used together as recycled materials; due to the low loss of vermiculite particles during use, they can be recycled and reused, and the loss rate of each compost is less than 5%; the operating cost is low, and the crushing process of sawdust or straw is reduced, greatly reducing Labor intensity and obvious economic benefits; the early heating speed of composting is fast, and the dehydration and cooling of the compost body are more rapid at the end of composting; the time required for composting to decompose can be shortened by 5-7 days, which is about 1 / 2 shorter than the composting cycle of similar industrial composting technologies at home and abroad 3. It improves the composting efficiency and is more suitable for the automatic control of the composting process.

The invention discloses a sludge composting and fermenting integrated treatment device used in the sludge composting field. The device comprises a fermentation tank and a deodorization component, wherein the fermentation tank is provided with a feeding hole and an exhausting hole, a sealing part is detachably arranged at the feeding hole, the exhausting hole is formed in the top of the fermentation tank and is connected with the deodorization component; a stirring component and an air distribution component are arranged in the fermentation tank, and the air distribution component is located at the bottom; an outer layer and an inner layer are arranged on the tank wall of the fermentation tank, and the space between the outer layer and the inner layer is filled with thermal insulation materials. By arranging the thermal insulation materials at the tank wall of the fermentation tank, the temperature of a compost body is conveniently controlled, and the compost body can be rapidly composted, so that the composting time is shortened, and the composting efficiency is improved; particularly, the composting temperature is rapidly increased through organic matter composting when the environmental temperature is relatively low, so that a proper growth temperature can be provided for microorganisms, the microbial activity can be maintained, organic matters can be adequately decomposed, the conversion rate of nitrate nitrogen in the sludge can be effectively increased, and the problems of an existing sludge composting that the temperature increase is slow, the temperature of the compositing body is not high enough, and the compositing cycle is long are solved.

The invention discloses an inner circular efficient compost system which comprises a compost chamber, wherein a filtrate plate is arranged in the compost chamber; an exhaust gas guide pipe is arranged above the compost chamber; the exhaust gas guide pipe and an oxygen guiding pipe are respectively communicated with an air inlet of an air blower; an air outlet of the air blower is communicated with a head air pipe; the head air pipe penetrates through a side wall of the compost chamber from the outer side and extends to the position under the filtrate plate; a plurality of air guide branch pipes are arranged on the head air pipe; the air guide branch pipes vertically penetrate through the filtrate plate; a plurality of aeration ports are formed in the side walls of the air guide branch pipes so as to form an air flow circulating channel; a plurality of through holes are formed in the filtrate plate; a filtrate backflow pipe is arranged on the side wall of the compost chamber under the filtrate plate; the filtrate backflow pipe passes by a mechanical pump and then penetrates through the top of the compost chamber; a spraying device is arranged at the tail end of the filtrate backflow pipe, so that a filtrate backflow system is formed. The end product of the compost according to the invention is high in maturity degree and high in quality.

The present invention relates to a kitchen waste oil composting method and a production process thereof, and the kitchen waste oil composting method comprises the following steps: smashing sawdust andcow dung; adding the sawdust and cow dung into kitchen waste oil for mixing evenly to obtain a to-be-fermented matter; adding a solid strain into the to-be-fermented matter, adjusting water content and C / N ratio, and piling into a strip stack pile for aerobic fermentation to obtain a decomposed kitchen waste oil compost. The beneficial effects are as follows: the kitchen waste oil composting method uses the kitchen waste oil for composting, the sawdust and the cow dung are added, composting time is shortened, the reuse of waste is realized, environmental pollution is reduced, people's healthis ensured, and the method is of great significance for development of circular economy.

The invention relates to a method for producing a biological organic fertilizer from wheat straw. The method comprises the following steps: crushing the wheat straw to be less than 50mm; spraying a bacterial liquid onto the crushed wheat straw, uniformly mixing, controlling the water content to be within 70-85% and the pH value to be 7; turning over when the temperature of the material is risen to be 50 DEG C, and controlling the fermentation temperature to be 50-70 DEG C and the fermentation time to be 5-15 days; when the compost size of the fertilizer is collapsed by 1 / 3-1 / 2 at the final fermentation point, drying the fertilizer in air, so as to obtain the biological organic fertilizer. As the bacterial liquid is used in biological organic fertilizer fermentation production, the composting time is shortened, the water amount for production is reduced, no toxicity, harm or odor is generated, the environment is not polluted, the nutrients can be maintained, the content of organic matters in the fertilizer is increased, and the quality of the fertilizer is improved.

The invention discloses a preparation method of a compound microorganism bacterium agent for sludge treatment. The compound microorganism bacterium agent is prepared by mixing escherichia coli, bacillus, sulfur-oxidizing bacteria, actinomyces, nitrifying bacteria and lactic acid bacteria; meanwhile, the invention provides the preparation method of the compound microorganism bacterium agent for the sludge treatment. According to the preparation method disclosed by the invention, the adaptation activity of a compound bacterium colony to temperature can be improved through adding adamantanamine and diethylmalonylurea; the adding amount of the bacterium colony can be reduced and the composting efficiency also can be improved; the compound microorganism bacterium agent disclosed by the invention can be used for effectively killing harmful microorganisms and pathogens in sludge through composting fermentation; meanwhile, a large amount of evaporation of moisture is accelerated and the problem of treating residual sludge in a wastewater treatment system is solved so that the dehydration efficiency of the sludge is improved.

The invention relates to the technical field of livestock and poultry breeding waste treatment, in particular to a decomposition treatment method of livestock and poultry breeding waste and an application of the decomposition treatment method. The decomposition treatment method comprises the steps of (1) performing solid-liquid separation on the livestock and poultry breeding waste through a biomass carbon filter layer to obtain separation liquor and separation residues, disinfecting the separation residues, and performing drying and crushing; (2) mixing fermentation liquor obtained through fermenting morchella esculenta with a PDA culture medium containing nitrogen and sulfur doped fluorescence carbon dots, with clostridium butyricum and streptomycete to prepare a microorganism fermentation agent, adding the microorganism fermentation agent and auxiliary materials to the separation residues to obtain fermentation raw materials, and performing malposition fermentation treatment on thefermentation raw materials in an external electric field to obtain fertilizer; and (3) enabling the separation liquor to be made into plant nutrition liquor. According to the method, the malposition fermentation treatment is performed on the livestock and poultry breeding waste in the external electric field with the microorganism fermentation agent based on morchella esculenta fermentation liquorto prepare the fertilizer, high-efficiency fermentation is realized, besides, the content of heavy metal ions in the livestock and poultry waste can be significantly reduced, and good diminishing effects on antibiotics, antibiotic medicine resistant bacteria and antibiotic resistant genes in the livestock and poultry breeding waste can be achieved.

The invention relates to a method for treating livestock and poultry breeding waste. The method comprises the following steps: (1) mixing livestock and poultry breeding waste and supplementary carbonsource substances to obtain a fermentation raw material; (2) performing ectopic fermentation treatment on the fermentation raw material in an ectopic fermentation bed in an external electric field toobtain a fermentation product. According to the method, the electrokinetic repair technology is applied to the ectopic fermentation bed, electrodialysis and electromigration can promote migration andtransportation of substances in the ectopic fermentation bed and promote conversion of antibiotics under actions of anodic oxidation and cathodic reduction, effective removal of resistance genes and resistance bacteria in the livestock and poultry breeding waste is realized, migration and enrichment of heavy metal ions under an electric field are achieved, a good reduction effect on antibiotics, antibiotic resistance bacteria, antibiotic resistance genes and heavy metal pollution in the livestock and poultry breeding waste is achieved while composting efficiency is improved and composting timeis shortened, and finally, a safe livestock and poultry waste recycling product is generated.

An auxiliary autocontroller for preparing compost in winter is composed of ambient temp sensor, transducer, A / D converter, computer, heater and relay for controlling the heater, and plays the role to control the temp of air coming into the compost for shorter period and higher quality.

The invention discloses a straw compost after-ripening enzyme accelerator and a use method therefor. The enzyme accelerator consists of trichoderma produced cellulase and neutral protease AS1.398, wherein the content of the trichoderma produced cellulase is 40-45%. The use method for the enzyme accelerator comprises the steps of chopping straws into small segments with length less than 5cm, carrying out conventional composting on the small segments, sprinkling accelerator enzyme liquid, which is prepared according to the blending ratio of 1: (8-12), to straw compost when the temperature of the straw compost is dropped below 50 DEG C, enabling the enzyme liquid and the straw compost to be uniformly mixed in a layered adding or turning composting manner, and carrying out standing until the straw compost is well-composted. According to the enzyme accelerator, the time for composting is shortened by about 15 days, the content of nutrients in soil is increased, and the growth of plants is promoted; and meanwhile, the use process is safe, non-toxic and harmless, so that the guarantee of food safety and soil environment is facilitated.

The invention discloses a biological agent for improving aerobic fermentation efficiency of organic waste. The biological agent is prepared from the following raw materials: 40-60 parts of bacillus stearothermophilus, 40-60 parts of thermophilic bacteria, 40-60 parts of lactobacillus thermophilus, 20-30 parts of bacillus subtilis, 20-30 parts of bacillus subtilis subsp. subtilis, 10-20 parts of alcaligenes, 10-20 parts of bacillus circulans, 10-20 parts of aspergillus fumigatus, 5-15 parts of trichoderma viride, 5-15 parts of geotrichum candidum, 3-10 parts of white rot fungi, 3-10 parts of brown rot fungi, 1-5 parts of green algae and 1-5 parts of blue algae. A preparation method comprises the following steps of: (1) weighing the raw materials; (2) activating strains; (3) compounding mixed strains; (4) preparing a primary seed solution; and (5) preparing the biological agent. The biological agent disclosed by the invention can reduce generation and emission of odor in a composting process and reduce loss of nutrient substances such as nitrogen, so that the aerobic fermentation efficiency of the organic waste is improved.

The invention belongs to the technical field of dredged sediment, and particularly relates to a method for producing a greening substrate through rapid composting of dredged sediment, which comprises the following steps: S1, concentrating; S2, acid adding and stirring; S3, preprocessing; S4, adjusting of the carbon nitrogen ratio; and S5, composting. According to the technology and the system, the high-quality wood which is low in energy consumption, short in production period, uniform and consistent in carbonization degree of the interior and the surface of the wood, high in strength, stable in performance, low in production cost and suitable for mass production is provided.

The invention relates to a preparing method of a composting fermentation strain. Preparing and using methods comprise the following steps: collecting microorganisms in an environment; inoculating a selective medium, which takes a rice leachate, sugar, milk, inorganic salt, bran, rice husks, composting raw material chippings as major ingredients, with the microorganisms, and implementing directional screening and propagation, so that the compound strain which is applicable to composting is obtained; forming a trapezoid material pile by virtue of such composting raw materials as crop straws, vegetable leavings, excrements of livestock, kitchen waste and the like; regulating the trapezoid material pile to a proper water content; uniformly inoculating the trapezoid material pile with the composting fermentation strain; turning the pile for several times and implementing aerobic fermentation until composting raw materials become soft, the volume of the composting raw materials is diminished, the morphology of the raw materials cannot be observed obviously, and the composting raw materials are neutral or faintly alkaline and free from odor, so that composting is completed. With the application of the methods, composting time can be obviously shortened, the thorough decomposition of the composting raw materials can be accelerated and a more thorough fermentation reaction can be guaranteed.