Organic compound fertilizer produced by using sludge with water content of 80% and production method

Abstract

The invention relates to an organic compound fertilizer produced by using sludge with a water content of 80% and a production method. The production method is characterized by comprising the steps ofadopting the sludge with the water content of 80%, coal ash, agricultural waste, quick lime, ferrous sulfate, magnesium sulfate, polyacrylamide and chlorine dioxide for even mixing, using a belt conveyor for transporting a mixture to a sealed high-temperature fermentation machine, elevating temperature in the fermentation machine to 100 DEG C through oil-electric heat conduction, maintaining an outage for 2 hours, maintaining temperature at 60 DEG C, adding high-temperature-loving active compound bacteria for fermentation, adjusting a stirring system of the fermentation machine to turn on an intermittent stirring function, and enabling fermentation time of the sludge in the fermentation machine to be 12 hours to effectively kill harmful microorganisms, eggs, weed seeds and pathogenic bacteria in the sludge; and ageing, crushing and screening a fermented cooked material to produce powder, and using an automatic electronic weighing and packaging machine for packaging the powder to produce an organic compound fertilizer product. Therefore, the problem of treating the sludge with the water content of 80% is solved, resource utilization of the sludge is achieved, and pollution to the natural environment is reduced.

Description

technical field [0001] The present invention relates to a production method of organic compound fertilizer by using sludge with a water content of 80%. Specifically, it uses urban sludge to carry out high-temperature rapid fermentation, sterilization, aging, drying, and mechanization. The organic compound fertilizer made after crushing and sieving belongs to the field of waste treatment. [0002] The invention also relates to a manufacturing method of the organic compound fertilizer. Background technique [0003] Sludge is the domestic sewage produced by urban residents, government agencies, schools, and units in their daily lives and the mixed sewage produced when it rains. The sewage is collected and discharged to the sewage treatment plant through the municipal pipe network. The sewage treatment plant uses physical or Sedimentary substances generated during the chemical treatment of sewage and mixed froth residues floating out of the sewage surface; municipal sludge is ...

AI Technical Summary

Problems solved by technology

[0004] At present, nearly 80% of the sludge in the country has not been stabilized and harmlessly treated, and most of it is still sent to urban landfills for simple landfill. Every ton of wet sludge with a moisture content of 80% is buried. It will produce a total emission of 0.5 tons of carbon dioxide and emit a large amount of methane to the environment. Its greenhouse effect is dozens of times that of carbon dioxide. Therefore, the secondary pollution is serious; the composition of urban sludge is relatively complex, the water content is high, and the treatment is difficult. A large amount of accumulated sludge will not only occupy a large amount of land, but also harmful components such as heavy metals, pathogenic bacteria, parasite eggs, organic pollutants and odor will become a major hazard affecting urban environmental sanitation; especially heavy metals, if not Landfilling directly after treatment will pollute the soil and groundwater sources, easily produce new secondary pollution, and cause serious harm to the environment; long-term landfilling requires a large amount of land resources, how to properly and scientifically dispose of urban sludge, It has become the focus of environmental circles in China and even the world to achieve reduction, stabilization, harmlessness and resource utilization. From the perspective of how to truly achieve resource development and utilization and economic development on the basis of protecting the ecological environment, Comprehensive utilization of resources is the most ideal new route for municipal sludge treatment and disposal