27 results about "Biogas" patented technology

The invention discloses a mushroom cultivating material which is characterized in that bamboo sawdust, bamboo shells and biogas residues are used as raw materials, and the water content of the cultivating material is 62-65%. The invention also provides a manufacturing method of the cultivating material. Compared with the prior art, the mushroom cultivating material has the advantages that firstly, the cultivating material is reasonable in proportion, and a fungous material keeps certain air permeability, so that the growth speed of mycelia is increased, and the sackful time is shortened; secondly, bamboo sawdust particles are hard in texture and resistant to decomposition, and the biogas residues contains comprehensive nutrients including nitrogen, phosphorus and potassium, so that the growth of mushroom is promoted, the yield of a product is increased, and the quality of the product is improved; and thirdly, wood is replaced with bamboos and bran is replaced with the biogas residues, so that the source of a cultivating raw material is widened, and the production cost is reduced. The mushroom cultivating material has the social benefits that wood dust is replaced with the bamboo sawdust and the bamboo shells, so that part of contradiction between a fungus and forestry can be alleviated, waste materials can be changed into things of value, and energy conservation and emission reduction can be favorably realized.

The invention discloses a degradable filter material biogas slurry filter and a filtering method of the degradable filter material biogas slurry filter. The degradable filter material biogas slurry filter comprises a box body, wherein a floating filter material filling hole and a fixed filter material filling hole are formed at the top of the box body, a liquid inlet is formed at the middle part of the box body, and a slag hole is formed at the bottom of the box body; the liquid inlet divides the inner cavity into a floating filter material chamber at the upper part of the liquid inlet and a sedimentation chamber at the lower part of the liquid inlet, a floating filter material is arranged inside the floating filter material chamber, the slag hole is communicated with the sedimentation chamber, and the floating filter material filling hole is communicated with the floating filter material chamber; and the fixed filter material filling hole is communicated with the floating filter material chamber by virtue of the fixed filter material chamber, a grid is arranged at a communication part, a fixed filter material is arranged inside the fixed filter material chamber, and the fixed filter material chamber is connected with a liquid outlet. By adopting the degradable filter material biogas slurry filter, flushing and back washing are not needed, the degradable filter material biogas slurry filter can stably operate for a long time while a filter material is supplemented periodically, and quality of filtered clear solution is stable and controllable.

The invention discloses a method for preparing hydrogen by utilizing waste biomass, and the method comprises the following steps of: firstly, processing the waste biomass into semi-finished product fluid slurry; then, carrying out water vapor gasification treatment on the semi-finished product fluid slurry, thus obtaining crude oil; carrying out supercritical water gasification treatment on the crude oil, thus obtaining crude bio-gas; and finally, carrying out low-temperature transformation treatment on the crude bio-gas, thus obtaining transformed gas. The hydrogen is prepared by two-step gasification and low-temperature transformation, so that the biomass gasification efficiency is high, tar carbon deposit blockage can be avoided, continuous feeding is realized, and the prepared hydrogen is high in purity; furthermore, in the low-temperature transformation treatment, precious metals and rare-earth elements are added on the basis of a copper-zinc-aluminum catalyst, so that the reaction temperature is remarkably reduced, the activity and stability of the catalyst are improved, and the conversion rate of CO is high during the low-temperature transformation treatment.

The invention relates to an agricultural mechanical equipment with functions of disinfection and excrement recovery and treatment, which includes a main body, a disinfection mechanism and a processing mechanism. Drying components, recycling components include suction nozzles, connecting pipes, air extractors, drying chambers and air outlets. In the agricultural machinery and equipment with disinfection and excrement recovery and treatment functions, the disinfection mechanism makes the spraying more uniform and the disinfection effect is better, which effectively reduces the probability of livestock dying due to virus infection and reduces economic losses. The dung of livestock on the farm is dried, and the dung is used to make feed, fertilizer and biogas to generate electricity, which plays a role in waste utilization. Through this kind of agricultural machinery and equipment, people's work intensity is reduced, work efficiency is improved, and it is safe and reliable. Improve the practicability of agricultural machinery and equipment.

The invention relates to the technical field of biogas digester materials, in particular to a PVC composite material for a biogas digester and a preparation method of the PVC composite material. The PVC composite material comprises E-PVC paste layers, base coat layers and high-strength polyester sandwiched fabric, wherein the base coat layers are formed by coating the top and bottom surfaces of the high-strength polyester sandwiched fabric with base coat layer coating liquid and then performing drying, plasticizing and cooling; the E-PVC paste layers are formed by coating the base coat layers on the top and bottom surfaces of the high-strength polyester sandwiched fabric with E-PVC paste layer coating liquid and then performing drying, plasticizing and cooling. The performance advantages of two materials namely TPU and organic silicon are combined, the surface dryness of the material can be improved, higher physical and mechanical properties can still be kept after the material is aged, and the material has excellent ageing resistance, excellent scraping resistance, excellent oil resistance and lower using temperature.

The invention relates to a method for biologically synthesizing natural gas from coke oven gas. The method comprises the following steps: (1) introducing organic wastes, the coke oven gas and aerobic activated sludge into a sealed deoxidization bio-reactor to perform a microaerobic biological deoxidization reaction; (2) introducing a nitrogen-free culture medium, the deoxidized coke oven gas and free-living anaerobic nitrogen-fixing bacteria into a sealed denitriding bio-reactor to perform an anaerobic biological denitriding reaction; (3)introducing the organic wastes subjected to the microaerobic biological deoxidization reaction from the sealed deoxidization bio-reactor, and a biogas producing inoculum into a sealed biogas producing reactor to perform biogas production by anaerobic fermentation; (4) performing solid-liquid separation on fermentation residues after biogas production by anaerobic fermentation, wherein a filtered biogas liquid contains rich nutriments and serves as a culture medium for subsequent methane production by anaerobic fermentation; and (5) introducing the deoxidized/denitrified coke oven gas, the biogas, the filtered biogas liquid and methane producing bacteria into a sealed methane producing reactor to perform methane production by anaerobic fermentation.

The embodiment of the invention provides a biogas fermentation gas supply engineering control system, comprising a master control sub-system, a programmable logic controller (PLC) control sub-system, a local control sub-system and a controlled sub-system, wherein the PLC control sub-system is respectively connected with the master control sub-system and the local control sub-system; the controlled sub-system is connected with the local control sub-system; the controlled sub-system comprises a material collecting unit, a degritting blending unit, a biogas generating unit, an air storage unit, a mud-water separating unit and a biogas power generation unit; the master control sub-system is used for automatically controlling the controlled sub-system through the PLC control sub-system; and the local control sub-system is used for switching the controlled sub-system between a local manual control state and a remote control state. By adopting the system, the instantaneity, the stability and the reliability of a biogas fermentation gas supply system are significantly improved; information management is facilitated; the operating cost is reduced; the working efficiency is improved; an accident is prevented; and the biogas fermentation gas supply engineering control system has high practical application value.

The invention provides a biochar-based organic fertilizer and a production method thereof. The biochar-based organic fertilizer is characterized by being prepared from the following components in parts by weight: 20-30 parts of biochar, 35-55 parts of organic matters, 6-9 parts of nitrogen (N), 3-5 parts of phosphorus (P2O5), 5-7 parts of potassium (K2O), 0.5-1 part of amino acids, 0.5-1 part of humic acid, 1.5-2.5 parts of wood vinegar, 1-2 parts of wood tar, 0.05-1 part of a beneficial inoculant, 0.5-1 part of a fertilizer controlled-release agent and 1-3 parts of a forming auxiliary agent.The organic matters are solid animal dung and thoroughly decomposed straws, the water content of which is smaller than or equal to 40%. The production method comprises the following steps: preparing biochar from crop straws after high-temperature pyrolysis; mixing the biochar with the solid organic matters to ferment together for 5-10 days, wherein no biogas slurry is discharged; adding the components in proportion to proportion and granulate; externally spraying the wood tar; and drying the mixture to obtain the biochar-based organic fertilizer. The method solves the problem that the crop straws and the animal dung are accumulated, and does not generate new polluting sources. The organic fertilizer contains various nutritional components and microelements and improves soil, so that wasteresources are utilized effectively to the maximum extent.

The invention relates to a rubbish treatment system and method in order to solve the problem that low-cost rubbish treatment cannot be effectively conducted easily in the prior art. When the rubbish treatment method is used for treating rubbish, the rubbish manufactured by citizens is directly discharged into a municipal sewage pipe network after being smashed and is further scoured continuously by an intermittent siphon scouring and silting device, and accordingly pipeline silting can be prevented. The smashed rubbish is mixed into original municipal sewage and then is conveyed to a service reservoir through the municipal sewage pipe network, the rubbish is matched with farmer market rubbish collected to be made into sewage with the COD content and power of hydrogen being suitable for meeting the growing requirements of methane bacteria, part of organic matter in the sewage can be decomposed into biogas quickly after the sewage passes through a fast biogas digester, and biogas slurry which is not decomposed in the fast biogas digester is then conveyed into a low-speed biogas digester to be fully decomposed to produce a large amount of biogas in the low-speed biogas digester together with collected food waste. By means of the rubbish treatment system and method, the municipal rubbish and sewage can be recovered and treated to the greatest degree, and meanwhile the blocking problem of city sewer lines can be solved.

The invention provides an integrated totally-enclosed harmless treatment automatic processing combination equipment system of livestock and poultry died from diseases. According to the integrated totally-enclosed harmless treatment automatic processing combination equipment system, acidic electrolyzed oxidizing water technology, screw technology, high temperature hydrolysis technology, microwave drying sterilization technology, and anaerobic fermentation organic fertilizer and biogas technology are adopted.

The invention belongs to the technical field of biogas slurry fertilizers, and discloses a preparation method for an odourless high-valued biogas slurry fertilizer. The preparation method comprises the following steps: taking biogas slurry, and pumping the biogas slurry into an aerobic fermentation device; respectively adding an organic carbon source compound, a nitrogen source, a phosphorus source and a potassium source into the biogas slurry to obtain a mixed liquid, and regulating the pH value of the mixed liquid until the mixed liquid is acidic; adding an aerobic microbial agent into the mixed liquid, and performing aerobic fermentation culture; adding an anaerobic microbial agent into the mixed liquid which is subjected to aerobic fermentation, and performing anaerobic fermentation culture; in an anaerobic fermentation culture process, adding inorganic acid calcium. The biogas slurry fertilizer provided by the invention takes the biogas slurry as a raw material, is prepared into ahigh value-added fertilizer which is rich in a plurality of probiotics and nutrients by adding a plurality of auxiliary materials and elements, such as nitrogen, phosphorus, potassium and calcium, and can be used for agricultural irrigation and aquaculture.

The invention relates to a technology for producing paper pulp from biogas residues of fast anaerobic fermentation of straw. The problem that a large amount of wood needs to be used for paper pulp used for papermaking, so that wood resources are wasted is mainly solved. The technology comprises the following steps that 1, fresh edible leaf vegetables are squeezed and separated into vegetable juiceand vegetable residues, and the straw is cut into pieces, and is soaked in clear water for two days; 2, the edible leaf vegetable juice and the cut straw are poured in a sealed container, water is added to cover the cut straw, when a PH value reaches 6.8-7, a small hole is formed in a cover of the sealed container, a plastic hose is connected, sealing is conducted, water temperature is maintainedat 36 degrees, after fermentation is conducted for three days, a hose valve is opened, exhaust gas is discharged, and then the hose valve is closed; 3, on the fourth day, biogas is generated, a needle valve is opened, a fire is set on an hose opening for ignition, on the seventh day, biogas residue straw segments are taken out, the biogas residues are washed with clear water twice, and after thebiogas residues are subjected to pulping, the paper pulp is formed. By means of the technology for producing the paper pulp from the biogas residues of fast anaerobic fermentation of the straw, largeamounts of wood and bamboo raw materials can be saved, the papermaking cost is lower, and the utilization rate of non-wood fibers is greatly improved.

The invention provides a fruit and vegetable waste anaerobic fermentation substrate efficient treatment method. The method comprises the following steps of: S1, conducting solid-liquid separation on afruit and vegetable waste anaerobic fermentation substrate capable of normally producing biogas through a solid-liquid separation device, with the separated biogas slurry water insoluble substances being lower than 50g/L; S2, collecting the biogas slurry subjected to solid-liquid separation into a first aeration device through a pipeline, and after collection of the first aeration device is completed, further collecting the biogas slurry subjected to solid-liquid separation into a second aeration device through a switching valve; meanwhile, starting the first aeration device for aeration through an aeration control system, wherein the aeration rate is that the volume ratio of minute ventilation volume to biogas slurry is 1:3.5-6, thus further degrading organic matters which are not completely degraded in the biogas slurry under an anaerobic condition, removing harmful substances like methane, hydrogen sulfide, sulfur dioxide and the like in the biogas slurry, and killing anaerobic bacteria and other harmful microorganisms. Suspended matters, impurities, heavy metals and other harmful substances in the biogas slurry are reduced, and meanwhile, nutritional ingredients required by crops in the biogas slurry are reserved.

The invention discloses an anaerobic ammonia oxidation reactor stable operation system based on multi-energy complementation. The system comprises an anaerobic ammonia oxidation reaction system and asewage warning system; a sludge biogas energy-solar energy-air energy coupling complementary mode is mainly used for taking warning measures on an anaerobic ammonia oxidation reactor through a heat storage water tank device; a sludge biogas system is a main heating system; and a solar heat collection system and an air source heat pump system are used as guarantee heating systems. According to thesystem, heat is provided for sewage in an adjusting tank through any two or three kinds of energy of biogas energy, solar energy and air energy at the same time, the requirement for the environment temperature in the operation process of the anaerobic ammonia oxidation reactor can be met, it is guaranteed that anaerobic ammonia oxidation bacteria have good activity, and efficient and energy-savingdenitrification is achieved. The system has the advantages of energy conservation, low operation cost, continuous and lasting temperature increasing effect, strong treatment capacity, stable operation effect and the like.

The invention relates to a hog house capable of easy cleaning and pollution discharge. The hog house comprises a hog house body and a biogas tank disposed on the lower end of the hog house body, wherein a rest area, an eating area, a sewage trough and a pollution discharge hole are disposed in the hog house body; the hog house body is disposed on the upper end of the biogas tank; the eating area in the hog house body is disposed at a corresponding position of the middle part of the front end of the hog house body, and the rest area is disposed at the left corner of the rear end inside the hog house body; and the sewage trough is connected to the pollution discharge hole and disposed at the edge of the right end of the hog house body. The hog house capable of the easy cleaning and pollution discharge provided by the invention is characterized in that the sewage trough is disposed at the right end of the hog house body, an inclination degree of 20 DEG is formed between the left and right ends of the hog house ground, and an angle of 25 DEG is formed between front and rear ends of the sewage trough; and interior of the hog house is kept sanitary and clean. The structure is rational, environment-friendly and practical; and faces waste is changed into valuable things and used for living and production, so ecologic cyclic utilization of the feces of a pig farm can be achieved.

The invention provides a biogas carbon reduction coupling biogas slurry pollution reduction device and method based on biogas circulation type fermentation, and belongs to the technical field of environment and energy. The device comprises an electric fermentation unit, a solid-liquid separation unit, a hydrothermal carbonization unit and a product collection unit, wherein the electric fermentation unit comprises an electric fermentation tank, a cathode chamber, an anode chamber, a cation exchange membrane and a direct-current constant-voltage power supply; according to the device, biotransformation of hydrogen-philic methanogens and electrochemical cathode reduction are coupled, biogas is circulated to an anaerobic digestion chamber, in-situ biogas biological purification is carried out, ammonia nitrogen and COD in biogas slurry are removed in an anode chamber while CO2 is reduced at a cathode to generate methane, and electron transfer and conservation rules are reasonably utilized; the biogas slurry can be used for irrigation after pollution reduction, and residual pollutants in the biogas slurry can also be adsorbed by biogas residue biochar to be further purified; the biogas residues can be prepared into hydrothermal carbon to be reused for anaerobic digestion or used as an adsorbent, so that the aims of comprehensive utilization of biogas slurry, biogas residues and biogas and CO2 emission reduction are fulfilled.

The invention discloses a narcissus soilless cultivation method. The method includes the following steps of (1), preparation of organic substrates; (2), selection of seeds; (3), castration of the seeds; (4), planting management, wherein the substrates are flatly laid on a planting bed adopting a net-shaped carrier for bearing the substrates, then the seeds are sowed on the substrate layer, watering is conducted immediately after the seeds are sowed, and the substrate layer is covered with straw; (4), water and fertilizer management, wherein watering is performed once or twice each day at the seedling emergence stage and the sprouting stage, watering is performed every one or two days at the withering stage, spraying of biogas slurry is performed every five to seven days, and organic microelements are added to the biogas slurry; and (5) harvesting, wherein after narcissus leaf blades wither, the bulbus of narcissus can be harvested when the substrate layer tends to be cracked. According to the narcissus soilless cultivation method, organic matter serves as the main material, soilless cultivation is performed on the narcissus, a suitable growth environment is provided for the narcissus, the narcissus is made to grow robustly in combination with a water and fertilizer drop irrigation management method, the harvesting cycle is shortened, the yield is raised, and quality is guaranteed.

The invention discloses a fish feed prepared from biogas residue prepared from animal and human manure, and a preparation method thereof. According to the preparation method, animal and human manure is subjected to biogas anaerobic fermentation; the fish feed is prepared from biogas residue obtained via biogas anaerobic fermentation, and is used for fish farming; so that environmental pollution caused by animal and human manure is avoided, and novel feed resources and processing methods are provided for breeding industry. The fish feed is used for fish farming, and is capable of promoting absorption and utilization rate of fish on nutrients, increasing feed conversion rate, improving fish health, promoting fish growth, reducing culturing investment, and saving fund.

The invention discloses a tower switching method which is suitable for a biogas purification pressure swing adsorption system. An all-tower operation mode and a reduced-tower operation mode are configured for the system in advance. The tower switching method comprises the following steps of: monitoring the system in real time, if a certain adsorption tower fails, isolating the failed adsorption tower from the system, and switching the system from an all-tower operation mode to a reduced-tower operation mode, the number of the adsorption towers participating in operation in the reduced-tower operation mode being one less than the number of the adsorption towers participating in operation in the all-tower operation mode. On the basis of the tower switching method, maintenance can be carried out without stopping production when a certain adsorption tower breaks down.

The invention discloses a method for collecting a gas sample and/or a liquid sample in an anaerobic fermentation system. The method comprises the following steps: hermetically connecting a three-way pipe with the outlet of the anaerobic fermentation system through a pipeline, and collecting samples through the following step (1) and/or step (2), wherein in the step (1) the on and off of the three-way pipeline is controlled to ensure that the inlet pipeline of the three-way pipe is communicated with at least one outlet pipeline and the outlet pipeline of the three-way pipe is connected with a gas collecting device, so that the collection of gas samples in the anaerobic fermentation system is realized; in the step (2), the on and off of the three-way pipe is controlled to ensure that the inlet pipeline of the three-way pipe is communicated with one outlet pipeline while the outlet pipeline of the three-way pipe is communicated with an injector, and when a piston of the injector is pulled to the predetermined scale, liquid samples in the anaerobic fermentation system are sucked into the injector under the action of the difference of the internal pressure and the external pressure of the piston. The method provided by the invention adopts the medical three-way pipe to collect the gas and liquid samples in the anaerobic fermentation process, and can be widely applied to sampling analysis of gas and liquid components in the research process of precision experiments of generating biogas through anaerobic fermentation.

The invention discloses a simple and effective livestock feces treatment method. The simple and effective livestock feces treatment method comprises the following steps: 1) pretreatment of animal feces: the animal feces is centralized and mixed with a large amount of water, and a raw material is formed. The animal feces is centralized for treatment, so that not only is the animal feces treated reasonably, but also the animal feces is transformed into biogas, the animal feces is reused, and waste is turned into wealth.

The present invention relates to the technical field of livestock breeding, and discloses a livestock breeding room with the odor removal function. The livestock breeding room comprises a breeding room body; the left side of the top of an inner cavity of the breeding room is fixedly connected with an odor detection instrument; the top of the breeding room is fixedly connected with a top plate; thetop of the breeding room is fixedly connected with a chimney with one end penetrating through and extending out of the top plate; the bottom of an inner cavity of the chimney is fixedly connected with a turbine fan; the top of the chimney is fixedly connected with a rainproof plate; the front and back sides of the bottom of the breeding room are fixedly connected with floors; and the upper and lower sides between one opposite sides of the two floors are fixedly connected with net plates. According to the livestock breeding room with the odor removal function, excrements of bred livestocks areconverted into biogas in a biogas pool, so that the excrements of the bred livestocks can be reutilized, resources are saved, the safety and environmental protection are achieved, and the surroundingenvironment is protected from being polluted; and the breeding room is easy to use and suitable for various situations.

The invention discloses a device for removing scum in a biogas tank. A fixed U-shaped pipe is bridged between front and rear through the bottom of a terminal gas storage chamber sealing wall of the curved-adit biogas tank, a U-shaped pipe inlet in front of the gas storage chamber sealing wall is lower than biogas liquid level in a fermentation chamber in the biogas tank when a pressure limiting valve of the biogas tank limits pressure by 0.2-10cm, a U-shaped pipe outlet in rear of the gas storage chamber sealing wall is connected with an airtight scum filter which is in water connection with a water suction pipe of a water pump, vacuum suction force is generated when the water pump works to enable biogas liquid level in the biogas tank and the U-shaped pipe inlet in front of the gas storage chamber sealing wall to form level fall, suspending scum preferably falls into the U-shaped pipe inlet in front of the gas storage chamber sealing wall, biogas liquid after the scum is filtered is extracted by the water pump, and the scum left on a filter element is removed by cleaning the filter element taken out from a moving cover of the airtight scum filter every a period of time. The device can be used for a water-pressure biogas tank with a pressure limiting valve replacing a water pressure chamber.