Method for producing special-purpose fertilizer for ramie with sewage water sludge composting of brewhouse

A technology of sewage sludge and special fertilizer, applied in the field of fertilizer

Inactive Publication Date: 2011-05-18
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: provide a kind of composting method of preparing ramie special fertilizer with brewery sewage sludge as the main raw material, to solve the problem of brewery sewage workshop Disposal of the generated sludge, and make full use of the large amount of organic matter and micronutrients contained in the brewery sewage sludge; at the same time, provide special fertilizers for the growth of ramie, reducing the cost of ramie planting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Brewery sewage sludge with a water content of 90% was mixed with rapeseed cake according to the mass ratio of 1.8:1, and 30 plastic woven bags were bagged according to the following ratio: each bag was filled with 30kg of brewery sewage sludge, rapeseed Cake 16.5kg, urea 292g, mix well, seal. Then the plastic woven bags are stacked in five layers (six bags per layer, stacked alternately). After 20 days, the compost is decomposed, and the total weight of the brewery sewage sludge compost after testing is 470kg. The nitrogen contained in the brewery sewage sludge compost is 4%, and the content of P 2 o 5 2% with K 2O is 1%; the organic matter content is 46%, and the moisture content is 19%. Gained brewery sewage sludge compost can be stored for a long time after 70 DEG C blast drying (moisture content ≤ 10%), according to brewery sewage sludge composting before use: urea: superphosphate: potassium chloride=10: 5: 3: 2 (mass ratio) is compounded, and gained fertilizer ...

Embodiment 2

[0032] Brewery sewage sludge with a water content of 80% was mixed with rapeseed cake according to the mass ratio of 4:1, and 30 plastic woven bags were bagged according to the following ratio: each bag was filled with 36kg of brewery sewage sludge, rapeseed Cake 11kg, urea 252g, mix well, seal. Then the plastic woven bags are stacked in five layers (six bags per layer, stacked alternately). After 20 days, the compost is decomposed, and the total weight of the brewery sewage sludge compost after testing is 479kg. The nitrogen contained in the brewery sewage sludge compost is 3%, and the content of P 2 o 5 1.7% with K 2 O is 0.8%; the organic matter content is 44%, and the moisture content is 19%. Gained brewery sewage sludge compost can be stored for a long time after 70 DEG C blast drying (moisture content ≤ 10%), according to brewery sewage sludge composting before use: urea: superphosphate: potassium chloride=10: 5: 3: 2 (mass ratio) is compounded, and the gained fertil...

Embodiment 3

[0034] Brewery sewage sludge with a water content of 70% was selected and mixed with rapeseed cake according to the mass ratio of 5:1, and 30 plastic woven bags were bagged according to the following ratio: each bag was filled with 40kg of brewery sewage sludge, vegetable Seed cake 7.6kg, urea 68g, mix well, seal. Then the plastic woven bags are stacked in five layers (six bags per layer, stacked alternately). After 20 days, the compost is decomposed, and the total weight of the brewery sewage sludge compost after testing is 483kg. The nitrogen contained in the brewery sewage sludge compost is 2%, and the content of P 2 o 5 1.3% with K 2 O is 0.5%; the organic matter content is 41%, and the moisture content is 19%. Gained brewery sewage sludge compost can be stored for a long time after 70 DEG C blast drying (moisture content ≤ 10%), according to brewery sewage sludge composting before use: urea: superphosphate: potassium chloride=10: 5: 3: 2 (mass ratio) is compounded, an...

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Abstract

The invention provides a method for preparing ramie special fertilizer from stockpile manure of sewage and sludge of a brewery. The method comprises the following steps: the sewage and sludge from the brewery is mixed with rape seed cakes according to the weight ration of between 1.8 and 5 to 1 to obtain the mixture; the C / N mass ratio and the initial water content of the mixture is adjusted to between 28 to 31 and 28 to 1 and between 58 and 62 percent respectively, the mixture after adjustment is put in plastic woven bags and sealed, and the plastic woven bags are piled in multiple layers for micro aerobic stockpile manure fermentation for 18 to 22 days; the stockpile manure after fermentation is dried at a temperature of less than or equal to 70 DEG C to obtain the brewery sewage and sludge stockpile manure with the water content of less than or equal to 10 percent; according to the weight ratio of 10 to 4-6 to 2-3 to 1-2, the brewery sewage and sludge stockpile manure, urea, calcium superphosphate and potassium chloride are mixed and evenly stirred to obtain the ramie special fertilizer. The method has the advantages of making the harmfulness reduction and the effective utilization of the brewery sewage and sludge, repeatedly using common plastic woven bags and having low cost.

Description

technical field [0001] The invention relates to fertilizers, in particular to a new method for preparing special fertilizers for ramie by composting sewage sludge from breweries. Background technique [0002] Environmental resources are the most basic conditions for human survival. Therefore, protecting environmental resources and preventing environmental pollution are important responsibilities of mankind for the benefit of all generations. Due to the rapid development of industry and agriculture, a large amount of waste has been produced, which has polluted the environment. The earth's surface is facing the danger of inorganicization, the amount of photosynthesis of plants has decreased, the temperature of the earth's surface has risen, and human living conditions have deteriorated. In the process of implementing the sustainable development strategy in our country, environmental protection has been paid more and more attention. For this reason, many beer companies in my c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F5/00C05F17/00C05G1/00
CPCY02A40/20Y02W30/40
Inventor 曾庆福潘飞陈悟陈洪高王军崔永明
Owner WUHAN TEXTILE UNIV
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