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Method for changing sludge to organic fertilizer

An organic fertilizer and sludge technology, applied in the direction of organic fertilizer, sewage/sludge fertilizer, fertilization device, etc., can solve the problems of lack of application value, large energy consumption, consumption, etc., to meet the needs of plant growth, reduce site occupation, and facilitate transportation Effect

Inactive Publication Date: 2007-08-22
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

[0031] (1) Broken into slurry and sieving: 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 broken without clogging pollution The mud pump pumps the mud into the mixing tank to pass through a coarse screen. After the coarse screen, it is stirred evenly, and then pumped into the second mixing tank to pass through a fine screen.

[0032] The debris from the coarse screen is transported to the landfill, and the impurities from the fine screen can be used as infrastructure backfill.

[0033] (2) Poultry manure and sludge mixing: take sludge 2.58M 3 , The moisture content is 75%, containing 1000 kg of dry mud; adding 1000 kg of dry chicken manure powder, the moisture content is 5.5%; urea N46% 43.5 kg, the above three are fully mixed in the mixer.

[0034] (3) Extrusion cutting: After mixing, it is extruded through the outlet hole, and the c...

Embodiment 2

[0038] (1) Dredging the silt, and sieving through the slurry: the bucket type (grab type) dredger removes the bottom mud, and then uses the suction dredge to complete the removal of the surface mud and transport it to the mixing tank; the crushing pump is broken, The non-clogging sludge pump pumps the sludge into the mixing tank to pass through the coarse screen. After the coarse screen, the sludge is stirred evenly, and then pumped into the second mixing tank to pass through the fine screen.

[0039] The debris from the coarse screen is transported to the landfill, and the impurities from the fine screen can be used as infrastructure backfill.

[0040] (2) The first agitated filter press: the sludge is pumped into the capacity of 200~250M 3 To the sludge tank, add dry chicken manure powder, appropriate amount of straw powder, and hull ash. The amount of dry chicken manure added is 20% of the weight of the dry mud contained in the sludge. The sludge is 5.3674M 3 , Containing 1000 ...

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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 sludge treatment technology, in particular to a method for converting sludge into organic fertilizer. Background technique [0002] At present, with the development of industrial production and the construction of urban facilities, the sludge deposited in urban sewers, water sludge from certain organic matter production plants, and sedimentary sediments of rivers, rivers, lakes, reservoirs, ponds, ditches, and canals are increasing. many. Usually these sludge contains a lot of impurities, and industrial and domestic sludge also contains heavy metals and harmful virus bacteria. At present, the treatment of sludge is carried out by incineration, landfill, biological reduction, and composting. These treatment methods require high facility investment and treatment costs, and are also difficult to treat because of the toxic and harmful substances in the sludge. Cause secondary pollution. [0003] Sewage sludge is usually rich in organi...

Claims

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Application Information

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