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Down sludge organic fertilizer and preparation method thereof

A technology of organic fertilizer and down, which is applied in the field of down production, and can solve the problem of easy odor of sludge

Inactive Publication Date: 2018-12-07
芜湖市三山区绿色食品产业协会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, a large amount of water is used in the cleaning process of feathers, which in turn leads to a large amount of sewage in the down production process, and the sewage contains a large amount of organic matter, and the sewage will form sludge rich in organic matter at the bottom after standing and settling , these sludges are very stinky

Method used

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Examples

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preparation example Construction

[0012] The invention provides a kind of down sludge organic fertilizer and preparation method thereof, comprising:

[0013] 1) Stand still the sewage after washing down, then remove 90%-95% of the supernatant by volume, and then add yeast to the system for fermentation;

[0014] 2) Filter the processed product after fermentation to take the filter cake, then soak the filter cake in acid solution, then add alkaline compound to neutralize it to neutral, finally filter again to take the filter cake, cook and dry to obtain the processed product;

[0015] 3) Mix the processed product, rapeseed cake and soybean meal to obtain down sludge organic fertilizer.

[0016] In step 1) of the above preparation method, the standing conditions can be selected in a wide range, but in order to further improve the fertility of the organic fertilizer, preferably, in step 1), the standing conditions meet the following conditions: the standing temperature is 10 -20℃, the standing time is 10-20h.

...

Embodiment 1

[0028] 1) Let the sewage after washing down feathers stand still (the standing temperature is 15°C, and the standing time is 15 hours), then remove 93% of the supernatant by volume, and then add yeast to the system (the amount of yeast added is 1.5kg / t sewage) for fermentation (fermentation temperature is 30°C, fermentation time is 48h);

[0029] 2) Filter the processed product after fermentation to take the filter cake, then soak the filter cake in acid solution (sulfuric acid) with a pH of 4.5 (soaking temperature is 38°C, soaking time is 10h), and then add alkaline compound (hydroxide Sodium) neutralized to neutral, and finally filtered again to take the filter cake for cooking (cooking temperature 105°C, cooking time 50min), drying (drying temperature 105°C, drying time 4h) to obtain the processed product A1.

Embodiment 2

[0031] 1) Let the sewage after washing down feathers stand still (the standing temperature is 10°C, and the standing time is 20 hours), then remove 90% of the supernatant by volume, and then add yeast to the system (the amount of yeast added is 1kg / t sewage) for fermentation (fermentation temperature is 25°C, fermentation time is 72h);

[0032] 2) Filter the processed product after fermentation to take the filter cake, then soak the filter cake in acid solution (hydrochloric acid) with a pH of 4 (soaking temperature is 35°C, soaking time is 12h), and then add alkaline compound (bicarbonate Potassium) neutralized to neutral, and finally filtered again to take the filter cake for cooking (cooking temperature 100°C, cooking time 60min), drying (drying temperature 100°C, drying time 5h) to obtain the processed product A2.

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PUM

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Abstract

The invention discloses a down sludge organic fertilizer and a preparation method thereof. The preparation method comprises the following steps: 1) enabling sewage after down washing to stand, removing 90%-95% by volume of supernatant and adding yeast into the system to ferment; 2) filtering a treatment product after the fermentation to obtain a filter cake, soaking the filter cake in an acid solution, neutralizing to neutral by adding an alkali compound and finally filtering the filter cake again, cooking and drying to obtain a treatment product; and 3) mixing the treatment product, a rapeseed cake and soybean meal to obtain the down sludge organic fertilizer. The down sludge organic fertilizer disclosed by the invention has the advantages that the fertility is excellent; the process is simple; and the raw materials are easily available.

Description

technical field [0001] The invention relates to the field of down production, in particular to a down sludge organic fertilizer and a preparation method thereof. Background technique [0002] Down is the fluff that grows on the abdomen of geese and ducks, and is called feathers in flakes. Since down is a kind of animal protein fiber, there are tens of thousands of small triangular pores densely covered on the down ball-shaped fiber, which can shrink and expand with the change of temperature, and has the function of temperature adjustment, which can absorb the flowing hot air from the human body and isolate the invasion of cold air from the outside. . From the analysis of the bulkiness test, down is one level higher than silk, cotton and other thermal insulation materials. For example, the minimum standard of 450 degrees fluffy 90 duck down is also more fluffy than silk and cotton, so down is purely used as a thermal insulation material. The economic value is much higher ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F7/00C05F17/00
CPCC05F5/002C05F7/00C05F17/00C05F11/08C05F9/04Y02A40/20Y02W30/40
Inventor 卢国孝刘建国
Owner 芜湖市三山区绿色食品产业协会
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