529results about "Fertiliser treatment control" patented technology

The invention includes a method and apparatus for composting organic material and maintaining composting conditions within preselected limits. Composting according to the method can occur within a sealable container. Adjusting the composition of the organic material to within preselected limits converts the organic material to a compostable mixture. The composition is adjusted by amending the organic material and by mixing the amended organic material with a bulking agent and an inoculant. Incubating forms a composting mixture from the compostable mixture. The method includes the steps of monitoring and adjusting conditions of the composting mixture to maintain the conditions within preselected limits. The conditions of the composting mixture are adjusted by aerating the composting mixture or remixing the composting mixture. The remixed composting mixture is incubated to yield composted organic material.

The invention discloses a method and a device for high-temperature rapid fermentation on agricultural waste to produce an organic fertilizer. The device comprises a material storage system, a heating system, a stirring system, a dehumidification and biodeodorization system, an oxygenation system, a feeding and discharging system and electric automatic control systems, wherein the material storage system comprises a U-shaped fermentation tank and an overall rack; the heating system comprises a heating insulating jacket, heat-conducting oil and an electric heating tube; the stirring system comprises a gear motor, a stirring shaft and a dual-layer spiral mixing blade; dehumidification and biodeodorization system comprises a dehumidifier and a biodeodorization filter material; the oxygenation system comprises an air compressor and an oxygen delivery pipeline; the feeding and discharging system comprises a feeding hole and a discharge hole; the electric automatic control systems of various units are uniformly connected to an electric control box. According to the method and the device, agricultural waste and thermophilic composite microbial agents can be evenly stirred and mixed, and are rapidly heated, so that the temperature in the device reaches 80-100 DEG C; harmful microorganisms and pathogens in the waste can be effectively inactivated; meanwhile, the activity of the thermophilic composite microbial agents is activated; and the organic fertilizer product is produced within 9 hours.

An inclined reactor of bottom gas-inlet type for aerobic fermentation and a method for aerobic fermentation are provided, a fermenter is provided with a circular inner tank, end covers and a jacket; an airtight fermentation space is formed in the fermenter by the inner tank, an upper end cover and a lower end cover; a feed opening and an exhaust outlet are arranged at an upper part of the fermenter, and a discharge opening is arranged at a lower part of the lower end cover of the fermenter; a length of the fermenter is greater than or equal to a diameter of the fermenter, the fermenter is fixed on a base having a height difference and is hence in an inclined state; an energy-saving stirrer is mounted in the fermenter, and the energy-saving stirrer is formed by connecting several groups of tangential plates or a spiral combination of tangential plates, a radial rod, a stirring rod and a stirring shaft; several groups of air chambers are arranged at an external wall at the bottom of the inner tank of the fermenter, the air chambers are arranged inside the jacket, several aeration nozzles are defined on an inner side of each air chamber, and the aeration nozzles are close to the inner tank.

The invention provides a vegetable residue, crop straw and livestock and poultry excrement combined composting process. An aerobiotic and anaerobic combined composting mode is adopted in the process. The process comprises the steps of material pretreating, mixing, composting, primary fermenting, secondary fermenting, thorough decomposing, sieving or smashing, compost preparing and the like. Crop straw with a high-carbon nitrogen ratio is used, and the problems of high moisture content, low carbon-nitrogen ratio and poor air permeability existing in the high-temperature aerobiotic composting process of vegetable residues are effectively solved; according to the process, the nutrients and moisture of the vegetable residues can be utilized, harmless treatment can be carried out on the vegetable residues, the crop straw and livestock and poultry excrement through high-temperature composting, organic compost is produced, and resource utilization of planting and breeding waste is achieved.

A composting system including a vertically-orientated vessel with a range of mechanisms attached to a vertically oriented central mounted rotating shaft, including rotatable size reduction blade(s), agitation mechanism(s), and discharge blade/mechanism(s). The composting system includes internal size reduction mechanism for reducing the size of waste and/or organic material introduced to the vessel. The composting system includes a loading hatch through which material may be introduced into the vessel, a discharge hatch through which material may be removed from the lower region of the vessel, and a source of air to maintain aerobic conditions within said vessel. When the apparatus is in use, material introduced to the vessel moves from the upper region of the vessel gravitationally and via agitation through a zone of size reduction to the lower region of the vessel. Process conditions within the vessel are controlled via intervention by an operator and via electronic control mechanism, which can monitor operating conditions such as temperature and loading rate (for example), to manage air injection, mechanical agitation and size reduction such that composting proceeds efficiently and at an optimal rate.

The present invention relates to a method of composting and treating food waste by using wood chips and an apparatus therefor. The method and apparatus for the composting and treatment of food waste in accordance with the present invention can recycle food waste as an organic compost by using wood chips in an eco-friendly manner and convert effluents generated from said food waste into an effluent satisfying water quality suitable for discharging by a combined biological and chemical process. Therefore, the present invention can be effectively used for recycling and treating food waste.

The invention provides a method for making a biological fertilizer by utilizing livestock and poultry waste. Feces (excrement) produced in a livestock and poultry farm area is delivered to a feces storage tank, a wind driven jet flow stirrer breaks feces into thin paste, the thin paste is fed into a biochemical hydrolysis tank through a water passing port formed in a partition wall for the feces storage tank and a biochemical hydrolysis tank for biochemical pretreatment, then a submersible sewage pump delivers the feces to a movable feces sprinkler through a pipe and is uniformly sprayed onto smashed crop straws in a device for making the biological fertilizer by utilizing the livestock and poultry waste, a liftable movable turning and throwing machine arranged on the b device for making the biological fertilizer by utilizing the livestock and poultry waste uniformly turns and throws the feces, a fungicide and the smashed crop straws, mixed fermentation is performed to make a biological organic fertilizer, percolate produced in the fermentation process flows back to the biochemical hydrolysis tank through a percolate draining pipe for reutilization, and a finished product fertilizer is discharged out of a feeding-discharging port. The method is novel, unique, scientific, reasonable and environment-friendly, the raw materials are rich and easy to produce, the effect is good, energy is saved, and economic and social benefits are huge.

The embodiment of the invention provides a river mud treatment method which comprises the following steps: (1) obtaining rotted river mud for composting; (2) uniformly mixing river mud to be treated, the rotted river mud for composting, a microbial agent and a carrier material, thus obtaining a mixture, wherein a ratio of the volume sum of the rotted river mud for composting, the microbial agent and the carrier material to the volume of the river mud to be treated is (0.06 to 0.15): 1, and the volume ratio of the rotted river mud for composting to the microbial agent to the carrier material is (1 to 3): (0.05 to 1): (15 to 30); and (3) stacking the mixture at a ventilating place for aerobic fermentation, turning the mixture in a fermentation process, and after fermentation is performed for 5 to 15 days, obtaining composted rotten river mud. According to the method provided by the embodiment of the invention, the use amount of the microbial agent in a river mud composting process can be reduced.

A composting system for promoting aerobic microbial activity in a composting bed. The system includes at least one composting bay for receiving composting material and an agitator for aerating and displacing composting material as it travels through the composting bay. Compost produced by the system is used in place of traditional woody amendment material for mixing with incoming material to be composted.

The invention relates to a resource utilization method for livestock breeding waste. The method comprises steps as follows: manure in a livestock farm is washed with clear water and sieved with a grid, and sieve residues and waste water are obtained; the waste water is introduced into a biogas fermentation unit to be fermented, and biogas is generated; biogas residues and a part of biogas slurry are returned to the biogas fermentation unit after fermentation, and the other part of the biogas slurry is made into a concentrated liquid fertilizer through a membrane concentration method; the sieve residues and dry livestock manure are mixed and sent to a pre-fermentation tank to be pre-fermented, and a fermentation substrate is obtained; the biogas residues and the fermentation substrate are fermented at a controlled temperature in a compost unit and crushed into fine powder, the fine powder is pelletized, dried and packaged, and an organic fertilizer is obtained. With the adoption of the method, high-value utilization and reduction of pollutants of the livestock breeding waste resources are realized, and the purposes of recycling the resources and reducing emission of the pollutants are achieved.

The invention discloses an automatic earthworm biological-composting sludge disposal system and an application method thereof. The system comprises a biological lixiviation pre-treatment system, a static decomposing pre-treatment system, an automatic feeding system, a modular composting system and an automatic earthworm/cocoon screening and collecting system. The biological lixiviation pre-treatment system and the static decomposing pre-treatment system are used for pre-treatment of materials for culturing earthworm, and the treated materials are delivered in the automatic feeding system for automatic feeding to an earthworm box; after feeding to the earthworm box is finished, earthworm cocoons are fed in, and the modular composting system is used for culturing the earthworm cocoons; the raw materials and auxiliary material in the earthworm culture box are screened and collected as three types of products, namely, earthworms, earthworm cocoons and wormcast through the automatic earthworm/cocoon screening and collecting system. The system has the advantages that manual work and cost are both reduced while output is increased by application of a high-automatic production mode; earthworms, earthworm cocoons and wormcast are separated thoroughly at one step and pure wormcast with good effect is obtained; the difficulty in thorough separation between the parent and the filial generation of earthworms is overcome.

The invention relates to an intelligent control method and system for a microbial decomposition process of organic matters. The invention aims to provide the intelligent control method and the intelligent control system for the microbial decomposition process of the organic matters; the temperature, humidity and weight changes of a material during microbial decomposition can be fully utilized, the temperature, humidity and oxygen supply quantity in the decomposition process can be intelligently controlled, and the decomposition efficiency of the organic matters is improved. According to the method, through acquisition of the temperature data, weight data and humidity data in the process of microbial decomposition of the organic matters, and with combination of predetermined ideal state temperature-time change data, ideal state humidity-time change data and ideal state decomposition rate-time change data of microbial flora in the organic matter decomposition process, the temperature, humidity, oxygen supply and decomposition rate in the organic matter decomposition process are adjusted.

The invention discloses a special fermenting device for high-value development of a multifunctional fertilizer by utilizing straws. The special fermenting device comprises a double-tower fermenting tank, a crushing mechanism, an automatic feeding mechanism and an automatic discharging mechanism; one end of the automatic feeding mechanism is connected with a material outlet end of the crushing mechanism; the other end of the automatic feeding mechanism is connected with a material inlet section of the double-tower fermenting tank; the automatic discharging mechanism is connected with the bottom of the double-tower fermenting tank; an interlayer is arranged in an outer shell of the double-tower fermenting tank; the interlayer is connected with first heat exchange equipment; a heat exchange pipe is arranged in the first heat exchange equipment; the heat exchange pipeline is loaded with a refrigerant internally; an outlet of the heat exchange pipeline is connected with second heat exchange equipment. The overall equipment is high in automation degree and low in energy consumption, and can realize continuous scale production; the product decomposition period is short; the cost is low; the yield is high; the fertilizer efficiency is high; the technology is mature; the process is environment-friendly.

The invention discloses a method for preparing a microbial compound organic fertilizer from livestock and poultry manure. The method comprises the following steps: uniformly mixing 700-800 parts of livestock and poultry manure with 150-300 parts of sawdust, 100-150 parts of straw, 100-150 parts of mushroom culture waste and 3-5 parts of a compound microbial strain; carrying out static fermentation for 24-36 hours; carrying out high temperature overturning fermentation, wherein the temperature is kept at 60-70 DEG C, the water content is 42%-47%, and the materials are turned and pushed once every 24-36 h and are turned and pushed for 5-8 times in total; carrying out low temperature overturning fermentation, wherein the temperature is kept at 30-60 DEG C, the water content is gradually reduced, 2%-4% of water is reduced each time, and the materials are turned and pushed once every 12-24 h and are turned and pushed for 3-5 times in total; and drying and cooling the fermented material until the water content is lower than 30% to obtain the powdery microbial compound organic fertilizer. By adjusting the proportion of the livestock and poultry manure residues, the organic waste materials and the functional compound microbial agent and controlling the fermentation mode, the fermentation temperature and the fermentation time in the fermentation process, the prepared microbial compound organic fertilizer contains various functional microorganisms, the quality and the yield of crops, fruit and vegetable tea can be remarkably improved, and the environment of planting soil is improved.

The invention discloses a vehicle-mounted organic garbage quick decomposition and fertilization system which comprises a vehicle body and a container shell, and the container shell is installed on thevehicle body; wherein a feeding unit, a pretreatment unit, an aerobic fermentation unit, a deodorization unit and a leachate treatment unit are arranged in the container shell; the integrated automatic control unit is used for controlling and monitoring the feeding unit, the pretreatment unit, the aerobic fermentation unit, the deodorization unit and the leachate treatment unit. The invention also discloses a method for treating organic garbage by using the vehicle-mounted organic garbage quick decomposition and fertilization system. The system is suitable for treatment of scattered garbage,organic garbage is subjected to on-site fertilization and energy utilization, and effective treatment of garbage leachate and odor emission can be realized.

The invention discloses an organic fertilizer aerobic fermentation method capable of being automatically controlled by utilizing film covering. The organic fertilizer aerobic fermentation method comprises the steps of selecting a fermentation field, digging a ventilation duct, building a heap, covering a film, fermenting and the like. According to the organic fertilizer aerobic fermentation method, a film covering type system, a ventilation system and a control system complement each other to form a unique, economical and effective high-temperature aerobic fermentation system; the method can help the film covering type system to keep temperature, and oxygen concentration and temperature in a material heap are uniformly distributed; a whole heap body can easily reach a temperature conditionof killing pathogens; the concentration of ozone can be reduced by 90 percent to 97 percent and the content of microorganisms in exhausted gas is reduced by 99 percent or more, so that the health ofon-site staff and nearby residents can be protected.

The invention relates to a film mulching aerobic composting reactor test apparatus. The film mulching aerobic composting reactor test apparatus comprises a film system, a tank body, a gas distribution sieve, sensor groups, a first pressure sensor, a right-angle elbow, a second pressure sensor, a filtrate collector, a gas inlet, a gas distribution system and a PLC control system. The film system is connected with the top of the tank body by virtue of a hollowed stainless steel ring. The gas distribution sieve is arranged on the lower part in the tank body; and three sensor groups are positioned above the gas distribution sieve and on the side wall of the tank body at intervals. The first pressure sensor is arranged on the top end of one side wall of the tank body; and the second pressure sensor is arranged at one side of the bottom of the tank body. The center position of the bottom of the tank body is connected with the filtrate collector by virtue of a pipeline, the gas inlet is formed in the pipeline, and the gas inlet is connected with the gas distribution system by virtue of a pipeline. The gas distribution system, each sensor group and each pressure sensor are separately electrically connected with the PLC control system, and the operation of the gas distribution system is controlled by the PLC control system. The test apparatus is compact in layout, convenient to operate and intelligent in monitoring.

The invention discloses a compost fermentation tank. The compost fermentation tank is characterized by comprising an outer tank body and an inner tank body, wherein the inner tank body is internally arranged in the outer tank body; the part between the outer tank body and the inner tank body is filled with a thermal insulation material; the top of the outer tank body is connected with a head cover; the head cover is connected with a gas recovery pipe and an exhaust pipe; an air supply device is arranged at the bottom of the inner tank body; and an input end of the air supply device penetrates out of the inner tank body and the outer tank body. The part between the outer tank body and the inner tank body is filled with the thermal insulation material, the air supply device is arranged at the bottom of the inner tank body, and the head cover is connected with the gas recovery pipe and the exhaust pipe, so that a compost can be fermented in proper temperature and humidity environments; the generated fermentation gas is small in concentration change amplitude; collection of the fermentation gas through the gas recovery pipe is simple and convenient, and an error caused by an environment change is reduced; meanwhile, the condition that the internal pressure of the tank body is in a safety range is ensured through the exhaust pipe; and the accuracy of online real-time measurement and laboratory detection of the fermentation gas is achieved.