Bio-organic fertilizer produced by use of municipal sludge and production method thereof

Abstract

The invention relates to a bio-organic fertilizer produced by the use of municipal sludge and a production method thereof. The production method is characterized by comprising the following steps of: using municipal sludge, a quicklime powder, ferrous sulphate, magnesium sulfate, corn straw, a rapid fermentative strain inoculant for bio-organic fertilizers, a decomposing agent for organic materials, lysine, rice bran dry cake, bone meal, ammonium nitrate, monoammonium phosphate, potassium sulfate, triacontanol, compound sodium nitrophenolate, an organic activator and the like as raw materials, uniformly mixing by a twin-shaft paddle mixer, preparing a powder or particles, and packaging to prepare the municipal sludge bio-organic fertilizer product. The product has complete nutrient components, and contains nitrogen, phosphor, potassium and a plurality of trace elements as well as various nutrients such as organic acid which help the growth of crops. The production method has no pollution, requires low cost, has good benefits, and is used to solve the secondary pollution of municipal sludge, protect the environment and save lands. .

Description

technical field [0001] The invention relates to a bio-organic fertilizer produced from municipal sludge. Specifically, it uses municipal sludge and adopts mechanical dehydration to carry out high-temperature fermentation, sterilization, drying, crushing and screening of powder and corn stalks. , rice bran dry cake and bone meal as the main raw materials for the production of bio-organic fertilizers, belonging to the field of waste treatment. [0002] The invention also relates to a manufacturing method of the municipal sludge bio-organic fertilizer. Background technique [0003] Municipal sludge is domestic sewage generated by urban residents, institutions, schools, units, etc. in daily life and mixed sewage generated when it rains. The sewage is discharged to the sewage treatment plant through the municipal pipe network, and the sewage treatment plant adopts physical or chemical methods. Methods The sedimentary substances produced during the sewage treatment process and th...

AI Technical Summary

Problems solved by technology

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, so the secondary pollution is serious

The composition of municipal 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 be reduced. Become a major hazard affecting urban environmental sanitation

Especially for heavy metals, if they are directly buried without treatment, they will pollute the soil and groundwater sources, easily produce new secondary pollution, and cause serious harm to the environment.

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