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Method for changing sludge to organic fertilizer

A technology of organic fertilizer and silt, applied in the direction of organic fertilizer, sewage/sludge fertilizer, fertilization device, etc., can solve the problems of lack of application value, consumption, large energy, etc., to meet the needs of plant growth, reduce site occupation, and prevent fertility. drain effect

Inactive Publication Date: 2005-01-12
陈茂铨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drying and dehydration method and the required equipment used in this patent method are not suitable for sludge with fine structure, tough performance and high water content, and drying the sludge to a water content of 10% will consume a lot of energy. Lack of application value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Broken into pulp and screened: the bottom mud is removed by a bucket type (grab type) dredger, and then the surface mud is removed by a suction dredger, and transported to the mixing tank; the crushing pump is crushed, and there is no clogged sewage The mud pump pumps the mud into the mixing tank to pass the coarse sieve. After the coarse sieve, it stirs evenly, and then pumps the mud into the second mixing tank to pass the fine sieve.

[0035] The coarse sieved debris is transported to the landfill, and the fine sieved impurities can be used as infrastructure backfill.

[0036] (2) Mixing of poultry manure and sludge: take sludge 2.58M 2 , with a moisture content of 75%, containing 1,000 kg of dry mud; adding 1,000 kg of dried chicken manure powder, with a moisture content of 5.5%;

[0037] (3) Extrusion and cutting: Extrude through the outlet hole after mixing, and cut it into columnar particles with a diameter of about 6mm and a length of 10mm by a cutting machi...

Embodiment 2

[0041] (1) Clear and dredge the silt, and sieve the slurry: the bucket type (grab type) dredger removes the bottom mud, and then uses the suction dredger to complete the removal of the surface mud, and transports it to the mixing tank; the crushing pump is crushed, The non-clogging sludge pump pumps the sludge into the mixing tank to pass through the coarse sieve. After the coarse sieve, it stirs evenly, and then pumps the sludge into the second mixing tank to pass through the fine sieve.

[0042] The coarse sieved debris is transported to the landfill, and the fine sieved impurities can be used as infrastructure backfill.

[0043] (2) The first mixing and pressing filter: the sludge pumping capacity is 200 ~ 250M 2 In the sludge tank, add dry chicken manure powder and appropriate amount of straw powder and husker ash. The addition of dry chicken manure is 20% of the dry mud weight contained in the sludge, and the sludge is 5.3674M 2 , including 1000 kg of dry mud, 200 kg of...

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Abstract

The invention relates to a mud treatment technology, particularly to method transforming mud into organic fertilizer. In the invention, mud is stirred to pulp, then is screened, feces of birds and beasts is dried and fine grinder, then to be mixed and smelted with mud, cut and prilled, the grains are dried by drying machine, then to be packed.

Description

technical field [0001] The invention relates to a sewage sludge treatment technology, in particular to a method for converting sewage sludge into organic fertilizer. Background technique [0002] At present, with the construction and development of industrial production and urban facilities, the sludge accumulated in urban sewers, the water sludge of some organic matter production plants, and the sediment sediment of rivers, rivers, lakes, reservoirs, ponds, ditches, and canals are becoming more and more many. Usually these sludges contain a lot of sundries, and industrial and domestic sludges also contain heavy metals and harmful viruses and bacteria. At present, sewage sludge is treated through incineration, landfill, biological reduction and composting, etc. These treatment methods require high facility investment and treatment costs, and are also difficult to handle due to the toxic and harmful substances in the sludge. cause secondary pollution....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F3/02C05F7/00C05F15/00C05G1/00
CPCY02A40/20
Inventor 陈茂铨
Owner 陈茂铨
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