35results about How to "Improve the efficiency of biogas production" patented technology

The invention discloses an operating method of a CSTR integrated reactor in a marsh gas resourceful treatment system. In the CSTR integrated reactor, a reverse-flow system and a reverse stirring device are added, so that the stirring efficiencies for smashed straw and anaerobic fermentation liquid can be effectively improved; in the stirring process, a material can form convection between two stirring blades, so that the problem that the traditional blender only stirs but not mixes the material is solved, and thus the efficiency of producing methane by adopting straw is improved; meanwhile, a screw propeller is arranged at a material outlet, so that a waste material can be rapidly discharged from a tank.

The invention provides an anaerobic digestion treatment method for kitchen waste, which belongs to the technical field of kitchen waste treatment. It solves the problems that resources are wasted to a certain extent in the existing garbage disposal methods, which are not environmentally friendly, and there are still many disadvantages in aerobic composting and anaerobic digestion. The present invention comprises the following steps: ①, pretreat the kitchen waste, and separate oil and water-solid mixed liquid; ②, send the water-solid mixed liquid into a homogeneous pool and mix thoroughly; ③, send the thoroughly mixed water-solid mixed liquid into Anaerobic digestion is carried out in the anaerobic fermentation device, and anaerobic digestion produces biogas, biogas residue and biogas slurry; ④, the generated biogas residue is added to the aerobic composting device for thermal composting, and at the same time, the aerobic composting device is continuously filled with straw and / or nutrients such as garden waste. The invention has the advantages that the anaerobic digestion technology and the aerobic composting technology complement each other; the continuous feeding and the two-phase process of a single anaerobic tank are realized by adopting two-stage feeding cabins; and multiple kinds of garbage are processed simultaneously.

A method for preparing biogas by utilizing irradiation pretreated crop straws, comprising placing the dry cut crop straws in an irradiation device, and irradiating them at a dose of 600kGy-1200kGy. 60 After being irradiated with Co-γ rays, mix with the inoculum at a ratio of 1:1.5-5 according to the volatile solid concentration, add biochar with a total weight of 2%-8% of the total weight of crop straw and inoculum, mix well, and use as fermentation and control the total solid concentration of the fermented body to be between 20% and 28%, and carry out anaerobic digestion at 35℃-39℃ for 20-24 days. The method has the advantages of simple operation, high utilization rate of straw, fast fermentation speed, stable gas production, and methane yield (without CO). 2 ) can reach 200-250L / kgVS, no biogas slurry is produced in the whole process, and the biogas residue is fully fermented.

The invention relates to a device and method for decreasing the kasugamycin content in kasugamycin residue. A direct current electrophoresis and macromolecular glue separation technology is adopted, as for the adopted device, macromolecular glue is placed in a general electrophoresis device, a square hole is dug in the macromolecular glue, the macromolecular glue is arranged at the bottom layer ofthe hole to serve as an underskirt, PBS, a 0.8% sodium chloride solution and a Tris-HCl buffer solution serve as an electrolyte, and the kasugamycin residue is put into the square hole of the macromolecular glue or is directly subjected to electrophoresis. According to the device, kasugamycin in the kasugamycin residue can be well removed, thus the kasugamycin can be subjected to better resourceutilization, in addition, the macromolecular glue is a biodegradable material, the kasugamycin in the residue enters the macromolecular glue through electrophoresis, and the kasugamycin entering the macromolecular glue can be reutilized through the separation technology, wherein the macromolecular glue with the kasugamycin being removed can be recycled.

The invention relates to a biogas digester for recycling urban garbage based on a BIM (building information modeling) technology. The biogas digester comprises a biogas producing mechanism and a BIM operation and maintenance controller, wherein the biogas producing mechanism comprises a main body, a heating mechanism and a central control mechanism; an opening and closing mechanism is arranged at the top of the main body; the opening and closing mechanism comprises a driving assembly, a transmission assembly and an opening and closing assembly; the transmission assembly comprises a first gear, a first transmission shaft, a second transmission shaft, a second gear and a third gear; the heating mechanism comprises a heating assembly and a stirring assembly. In the biogas digester for recycling the urban garbage based on the BIM technology, according to the rise and fall of the medium water level in a water pressure compartment, the driving assembly controls the opening and closing assembly through the transmission assembly to achieve opening and closing of a second through hole in a top cap, so that automatic biogas collection of the biogas digester is achieved and the practicality of the biogas digester is improved; furthermore, through coordination of the heating assembly and the stirring assembly, the main body is uniformly heated, the biogas production efficiency is improved, and the practicality of the biogas digester is improved.