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

A bio-organic fertilizer and municipal sludge technology, applied in fertilizer mixtures, applications, fertilization devices, etc., can solve the problems of high water content, affecting urban environmental sanitation, occupying large land, etc., to promote the formation of agglomerate structure and enhance water retention. Fertilizer retention capacity, improvement and effect of fertilizing soil

Active Publication Date: 2012-02-15
李桓宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The sediment produced during the treatment of urban residents, institutions, schools, units, etc. in the daily life of the sewage discharged by the municipal pipe network and the floating foam residue floating on the surface of the sewage are mechanically dehydrated to a moisture content of 45%. , 50%, 55%, 60%, 65% of municipal sludge;

[0051] The waste generated during corn harvesting is crushed, fermented at high temperature, deodorized, sterilized and decomposed, dried, milled, and sieved to make corn stalk powder with a particle size of -0.18mm;

[0052] A kind of rice bran separated from rice through mechanical processing is steam-heated, and the by-product produced during the oil extraction process by mechanical pressing is fermented at high temperature, dried, milled, and sieved to make a particle size of -0.18mm dry rice bran cake powder;

[0053] All kinds of animal bones separated from the food meat processing process of large hotels, institutions, schools,...

Embodiment 2

[0056] Get the municipal sludge 70kg, -0.18mm unslaked lime powder 20kg, ferrous sulfate 8kg, magnesium sulfate 15kg that embodiment 1 prepares moisture content 50% to mix and carry out deodorization, disinfection, drying, pulverizing, and corn stalk powder 25kg, 0.6kg of bio-organic fertilizer rapid fermentation strain agent, 0.6kg of organic material decomposing agent, 0.3kg of lysine and 25kg of dry rice bran cake powder are mixed evenly, and then the high-temperature fermentation is carried out dynamically in a mechanical container. The fermentation temperature is 80°C. The final sludge clinker is then dried and sieved to make a mixed powder with a particle size of -0.18mm for use, and then the mixed powder and bone meal powder 18kg, ammonium nitrate 6kg, monoammonium phosphate 8kg, sulfuric acid Potassium 6kg, triacontanol 0.03kg, sodium nitrophenolate 0.03kg and organic activator 0.6kg are mixed evenly with a twin-shaft paddle mixer, and the granules of 3mm are made into ...

Embodiment 3

[0058] Get the municipal sludge 65kg with moisture content 55% prepared by Example 1,-0.18mm unslaked lime powder 15kg, ferrous sulfate 6kg, magnesium sulfate 11kg mix and carry out deodorization, disinfection, drying, pulverizing, and corn stalk powder 18kg, 0.3kg of biological organic fertilizer rapid fermentation strain agent, 0.3kg of organic material decomposing agent, 0.2kg of lysine and 18kg of dry rice bran cake powder are mixed evenly and used in a fermentation tank for high-temperature fermentation. The fermentation temperature is 65°C. The sludge clinker is dried and sieved to make a mixed powder with a particle size of -0.18mm for use, and then the mixed powder is mixed with bone powder 13kg, ammonium nitrate 4kg, monoammonium phosphate 6.5kg, potassium sulfate 4kg, Triacontanol 0.02kg, sodium nitrophenolate 0.02kg and organic activator 0.3kg are mixed evenly with a biaxial paddle mixer to make a bio-organic fertilizer powder product. The nitrogen content of the pro...

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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...

Claims

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Application Information

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IPC IPC(8): C05G1/00
CPCY02A40/20
Inventor 李桓宇
Owner 李桓宇
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