3 results about "Co composting" patented technology

The present application relates to the technical field of fermentation engineering, and particularly relates to a method for producing organic fertilizer by thermophilic fermentation of mixed compost of rotten citrus fruits and mushroom residue. The method comprises the following steps: (1) crushing and mixing rotten citrus fruits and mushroom residue, adjusting the initial moisture content to 60-65%, and adding lime to obtain mixed materials; (2) adding bacillus velezensis bacterial liquid to the mixed materials obtained in step (1) for composting; (3) when the temperature of the composting pile drops to 35 DEG C, adding coprinus comatus liquid for further composting. The present application uses rotten citrus fruits and mushroom residue as raw materials, and realizes efficient and collaborative resource utilization of the two types of agricultural waste by optimizing the ratio and inoculating exogenous bacterial agents in stages. The method can solve the environmental pollution problem caused by the discarding of rotten fruits in citrus-producing areas from the source, and provides a high-value outlet for the by-products of the mushroom industry.

The application provides a method for increasing carbon and yield and reducing greenhouse gas emission of farmland by returning straw to field and application thereof, and belongs to the technical field of returning straw to field. The method comprises the following steps: treating corn straw by using biogas slurry obtained by anaerobic fermentation of cow dung and corn straw, mixing the treated corn straw with EM microbial agent to carry out composting fermentation, and returning the fermented corn straw to field. The treatment and returning method of the corn straw can effectively seal the carbon source in the soil in the form of organic carbon, improve soil fertilizer, avoid emission of the carbon source in the form of greenhouse gas to the environment, and cause pollution to the environment, thereby achieving the technical effect of carbon sealing and fertilizer increasing, providing technical support for returning straw to field, and being helpful to the development of green agriculture.

The utility model provides a kind of mixed and compost integrated device of biogas slurry preparation solid organic fertilizer, belong to the field of biogas fertilizer preparation production, including compost bin, the filter feeding assembly of being arranged on the surface of compost bin and the stirring material pile assembly of being arranged on the surface of compost bin, filter feeding assembly includes the box of being arranged on the top of compost bin, filter port is opened in one side inside box, feeding port is opened in other side inside box, pump body is detachably connected inside filter port, feeding port inside movably connected has plug, the utility model pump body works through water inlet pipe from outside and extracts biogas slurry, then biogas slurry is discharged into compost bin inside by water outlet pipe, when needing to carry out mixed compost, user carries out extraction by moving handle and plug from the aperture of being opened on the surface of box, it is convenient to pour the material of feeding port to compost bin, to carry out multiple import mixing, increase the overall usability.