Production method of papermaking sludge compost

A technology of papermaking sludge and production method, applied in the field of organic fertilizer, can solve the problems of waste of manpower, material resources, pollution of factory areas and roads, occupation of large land, etc., and achieve the effects of eliminating pollution, less equipment investment and low cost

Inactive Publication Date: 2013-12-25
江苏五洲纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sludge produced in papermaking has primary sludge, secondary sludge, and air flotation sludge. The easiest way to deal with these sludges is to reduce the moisture content of the sludge to a certain standard through dehydration equipment or dry it naturally, and then send it to Landfilling at the g...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Send papermaking primary sludge, secondary sludge, and air flotation sludge, accounting for 85% of the total, to the sludge dehydrator for dehydration. The dehydrated sludge has a water content of 70%, and one-third of the dehydrated sludge Once sent to the sludge dryer, it is dried into dry sludge with a moisture content of 30%, and then sent to the blending tank, and the undried sludge after dehydration is also sent to the blending tank; the total amount will be 1 % of the organic fertilizer starter and 12% of the total amount of grass bran are sent into the grass bran tank for full mixing and then sent to the blending tank, and the dry sludge, wet sludge, grass bran, and organic fertilizer starter are mixed evenly. At this time, the moisture content of the mixture is about 55%-60%. The mixed materials are sent to the fermentation tank for sealed fermentation. Fermentation is 25-30 days in summer and 65-70 days in winter. The fermentation temperature can reach 40-60°C ...

Embodiment 2

[0015] Send papermaking primary sludge, secondary sludge, and air flotation sludge, which account for 86% of the total, to the sludge dehydrator for dehydration. The dehydrated sludge contains 70% water, and one-third of the dehydrated sludge Once sent to the sludge dryer, it is dried into dry sludge with a moisture content of 30%, and then sent to the blending tank, and the undried sludge after dehydration is also sent to the blending tank; the total amount will be 1 % of the organic fertilizer starter and 11% of the total amount of grass bran are sent into the grass bran tank for full mixing and then sent to the blending tank, and the dry sludge, wet sludge, grass bran, and organic fertilizer starter are evenly mixed. At this time, the moisture content of the mixture is about 55%-60%. The mixed materials are sent to the fermentation tank for sealed fermentation. Fermentation is 25-30 days in summer and 65-70 days in winter. The fermentation temperature can reach 40-60°C Afte...

Embodiment 3

[0017] Send papermaking primary sludge, secondary sludge, and air flotation sludge, which account for 87% of the total, to the sludge dehydrator for dehydration. The dehydrated sludge contains 70% water, and one-third of the dehydrated sludge Once sent to the sludge dryer, it is dried into dry sludge with a moisture content of 30%, and then sent to the blending tank, and the undried sludge after dehydration is also sent to the blending tank; the total amount will be 1 % of the organic fertilizer starter and 10% of the total amount of grass bran are sent into the grass bran pool for full mixing and then sent to the blending tank, and the dry sludge, wet sludge, grass bran, and organic fertilizer starter are evenly mixed. At this time, the moisture content of the mixture is about 55%-60%. The mixed materials are sent to the fermentation tank for sealed fermentation. Fermentation is 25-30 days in summer and 65-70 days in winter. The fermentation temperature can reach 40-60°C Afte...

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PUM

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Abstract

Belonging to the field of organic fertilizers, the invention discloses a production method of papermaking sludge compost. The method provided in the invention takes papermaking primary settling sludge, secondary settling sludge, air floating sludge, grass chaff, an organic fertilizer fermentation agent, a bactericide, an amino acid chelate, and a humic acid chelate as raw materials to produce papermaking sludge compost by means of high temperature fermentation. The method makes use of modern biological technologies, comprehensively utilizes the waste in a paper production process, changes waste into things of value, needs less equipment investment, can convert papermaking sludge into useful organic fertilizers, thus generating certain economic benefits, and also generating enormous social benefits. The products can be used as crop base fertilizers to be applied in spring and winter, and the application dose is generally 2000-3000kg per 667 square meters.

Description

Technical field: [0001] The invention belongs to the field of organic fertilizers, in particular to a method for producing compost using papermaking sludge as a raw material. Background technique: [0002] Papermaking and pulping enterprises will produce a large amount of sludge during production, and these sludges will become a new source of pollution. Therefore, how to deal with these sludges is a difficult problem for papermaking enterprises. The sludge produced in papermaking has primary sludge, secondary sludge, and air flotation sludge. The easiest way to deal with these sludges is to reduce the moisture content of the sludge to a certain standard through dehydration equipment or dry it naturally, and then send it to Landfilling at the garbage disposal site is time-consuming and labor-intensive, wastes a lot of manpower and material resources, takes up a lot of land, and may cause pollution to the factory area and roads during the transportation process. How to turn th...

Claims

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Application Information

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IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 不公告发明人
Owner 江苏五洲纸业有限公司
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