JPH089954A - Carbide of beer cake - Google Patents

Abstract

PURPOSE:To obtain a carbide of beer cake as an inexpensive porous material having uniform qualities useful as a soil conditioner having excellent environmental maintenance and safety by drying beer cake and carbonizing. CONSTITUTION:Beer cake is dried, adjusted to <=20, water content and carbonized in a fluidized furnace at 400-700 deg.C to give the objective carbide of beer cake. The carbide of beer cake is preferably mixed with liquid fertilizer or one or more of fertilizer components such as urea, magnesium phosphate, ammonium phosphate or potassium phosphate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beer meal charcoal, and more particularly to a charcoal-based material or a molded product thereof which uses beer meal obtained in a large amount in a beer production process (that is, wort squeezing meal for beer production).

[0002]

2. Description of the Related Art Beer meal has been conventionally used as a feed for livestock such as cattle as it is or as a fermented feed, but a part of it is treated as incineration, landfill or the like. On the other hand, it has already been attempted to use charcoal such as sludge for treating human waste water and livestock manure as a soil conditioner (JP-A-6-144977), but only such raw materials are used alone or in combination with other components. If
Due to the concentration effect (biological concentration) by living organisms including humans, there is a risk of using a raw material containing a relatively large amount of harmful substances such as heavy metals. Furthermore, since these harmful substances are concentrated by carbonization, it is dangerous to use them extensively on the ground as soil improvers, and it is necessary to inspect the residual properties of these dangerous substances.

[0003]

Since the beer lees used in the present invention are a by-product of food production, quality inspection and production process control at the raw material stage are rigorously performed, and thus harmful substances may be mixed. There is no. Furthermore, since excess sludge generated from the wastewater treatment facility of a beer factory is extremely unlikely to be mixed with harmful substances for the same reason, there is no danger of using this as a binder.

On the other hand, in consideration of the recent severe public opinion on the problem of environmental pollution, the method of treating beer lees as a waste by incineration or landfill is a reversal means and is not a desirable method. In addition, from the viewpoint of agricultural policy, there is a demand for a porous material that has a function of adsorbing and retaining organic matter in soil, which is already excessive, and that is capable of immobilizing not only organic matter but also moisture, air, soil microorganisms, and the like. There is.

As a result of intensive studies to solve these problems, it has become possible to supply a porous material having a uniform quality at a low cost from a by-product of beer production. Therefore, an object of the present invention is to provide a safe and excellent technique for beer lees, which is a by-product of beer production, from the standpoint of environmental problems and agricultural policy.

[0006]

That is, the present invention relates to a beer meal carbonized product obtained by drying and carbonizing beer meal.

The carbonized beer lees of the present invention is obtained by dehydrating or drying beer lees to adjust the water content to usually 50% or less, preferably 20% or less, and then carbonizing. Carbonization is performed at 300 to 1000 ° C. in any carbonization equipment such as a fluidized bed furnace, open hearth furnace, block furnace, etc.
By treating the dried beer lees at a temperature of, preferably 400-700 ° C. When the relationship between the carbonization temperature of the beer lees and the physicochemical properties of the obtained carbide was examined, as shown in Table 1, the higher the carbonization temperature, the higher the pH of the carbide and the higher the porosity, but the yield It turned out to be lowered.

[0008]

[Table 1]

Next, Table 2 shows the results of comparison of beer lees charred by carbonization at 500 ° C. with a commercially available carbon-based soil conditioner. As is clear from the table, beer lees charcoal has a pH in the neutral range compared to ogre pulverized coal (charcoal) and rice husk charcoal (smoked charcoal), so when used as a soil amendment, it has a drastic effect on plants. Expected not to give. Furthermore, the contents of phosphoric acid, calcium and nitrogen are significantly higher than those of charcoal and smolder charcoal, and they also have a fertilizer effect on plants, and can be expected to be excellent soil conditioners.

[0010]

[Table 2]

Thus, the beer lees charcoal contains the fertilizer component as it is, but by adding a liquid fertilizer or a fertilizer component such as urea, magnesium phosphate, ammonium phosphate or potassium phosphate, It is possible to obtain a beer lees charcoal which can be expected to have an immediate effect on fertilizer.

Further, as shown in Table 2, beer lees charcoal has a low bulk density. Therefore, when inconvenience is expected in handling, pelletizing or blocking is carried out as follows to improve handleability. Can be improved.
That is, the obtained beer lees charcoal is added with a liquid such as water and an arbitrary binder to form pellets or blocks. Examples of the binder include polysaccharides such as starch, dextran, cellulose, carboxymethyl cellulose and alginic acid, sugars such as lactose and molasses, gums such as gum arabic and guar gum, konjak production residue, and surplus brewer's yeast which is a by-product of beer production. (Or its dried product), yeast extract extraction residue, denuclearized yeast, etc., and excess sludge (tar, lecithin emulsion such as pitch emulsion, wastewater from sulfite pulp, etc.) generated from wastewater treatment facilities such as beer factories. It is confirmed that it is not included) etc. Of these, surplus brewer's yeast (or its dried product), yeast extract extraction residue, denuclearized yeast, surplus sludge generated from a wastewater treatment facility of a brewery, and the like are preferable. The binder may be used alone or in combination of two or more, and the addition amount thereof is usually 0.1 to 70 with respect to the beer lees.
% (Weight), preferably 1 to 30% (weight). Further, the addition amount of water is appropriately 10 to 50% (weight).

Then, using any pellet manufacturing machine or block manufacturing machine, pellets or prisms having a diameter of 4 to 20 mm, preferably 4 to 10 mm,
It is molded into a columnar or brick-shaped block.

Instead of water, or part of water is used as liquid fertilizer or one or a combination of two or more liquid fertilizer components such as urea, magnesium phosphate, ammonium phosphate and potassium phosphate. Therefore, a higher fertilizer effect can be expected. When adding an appropriate amount of liquid fertilizer or fertilizer components, the amount of binder used should be 0.1-
The content of these components can be controlled by adjusting the content to 30%.

On the other hand, the beer lees can be molded into pellets or blocks before carbonization. in this case,
Immediately after generation from the beer production process, moist beer lees containing 50 to 90% of water are molded by using a molding device such as a pressure type machine to obtain beer lees 100 without a binder.
% Pelleting or blocking is possible. Further, by drying and carbonizing this, beer lees 100
% Carbide pellets or blocks can be produced.

However, the binder mentioned above may be added when pelletizing or blocking the beer lees before carbonization, and the addition amount of the binder in that case is based on the beer lees.
0.1-70% (weight), preferably 2-50% (weight)
Is. The amount of water can be adjusted to 10 to 60% (weight), preferably 20 to 60% (weight) by adding a binder, and molding can be performed by using an extrusion molding device without using a special technique. is there. The obtained pellets or blocks can be used in any carbonization furnace such as a fluidized bed furnace, open hearth furnace, etc.
By carbonizing at 0 to 1000 ° C., preferably 400 to 900 ° C., a beer lees charcoal pellet or block having controlled components can be produced.

The obtained beer meal carbonized product or a molded product thereof can be used in the same manner as a carbonaceous soil improver such as ordinary charcoal or smolder. That is, beer lees charcoal or molded product thereof is used in an amount of 100 to 100 per 10 are of soil.
By mixing 0 kg, preferably 200 to 1000 kg, the effect of improving the water retention and fertilizing properties of the soil can be achieved. Further, beer lees charcoal or its molded product can be used as an adsorbent, a filtering agent, a snow melting agent, a deodorant, etc. in addition to the soil improving material, and can also be used as a fuel.

[0018]

EXAMPLES Next, the present invention will be described in detail with reference to Examples. Example 1 50 kg of beer meal (water content 8%) dried by a dryer
(Volume 250 liters) is carbonized at 400 ° C. in a fluidized bed furnace, and beer lees carbide is 11 kg (volume 90 liters).
Got

Example 2 10 g of a commercially available liquid fertilizer (trade name: Hyponex, manufactured by Murakami Bussan) was added to 700 g of the beer lees charcoal obtained in Example 1 and 10 g of carboxymethyl cellulose sodium salt.
After adding 300 ml of 0-fold diluted liquid and kneading the mixture, it is pelletized using a uniaxial extrusion molding machine with a die having a diameter of 6 mm to obtain pellets 82 of beer lees charcoal.
0 g was obtained.

Example 3 10 g of a commercially available liquid fertilizer (trade name: Hyponex, manufactured by Murakami Bussan) was added to 700 g of the beer lees charcoal obtained in Example 1 and 10 g of carboxymethyl cellulose sodium salt.
After adding 300 ml of 0-fold dilution and kneading the mixture, block it with a pressure block molding machine to give a column of beer lees charcoal block with a diameter of 40 mm 880 g.
Got

Example 4 Draft beer lees discharged from the beer manufacturing process (water content 85
%) Was dehydrated by a dehydrator to adjust the water content to 65%, and then 5 kg thereof was formed into pellets having a diameter of 8 mm using a pressure type pellet molding machine. After drying the pellets, they were carbonized at 600 ° C. in a flat furnace to obtain 400 g of charred pellets of 100% beer lees.

Example 5 Beer lees discharged from the beer production process were dehydrated with a dehydrator to make the water content 65% (hereinafter referred to as dehydrated beer lees), and then mixed with 5 g of dried beer yeast 500 g. . Next, using a uniaxial extrusion pellet molding machine, pellets having a diameter of 6 mm were prepared. After drying the pellets, by carbonizing at 400 ° C. in a flat furnace,
630 g of beer lees charcoal pellets were obtained.

Example 6 In place of 500 g of dried brewer's yeast, 50 g of dried yeast cell wall residue which was a yeast extract extraction residue was used and treated in the same manner as in Example 5 to obtain 320 g of beer lees charcoal pellets.

Example 7 In place of 500 g of dry brewer's yeast, 100 g of excess sludge filtration residue from a wastewater treatment facility of a beer manufacturing plant was used and treated in the same manner as in Example 5 to pellet 40 of beer lees charcoal.
0 g was obtained.

Example 8 Treatment was carried out in the same manner as in Example 7 except that 1000 g of the filtration residue of the excess sludge in the wastewater treatment facility of the beer manufacturing plant was used,
790 g of beer lees charcoal pellets were obtained.

Example 9 5 kg of dehydrated beer lees were dried with yeast extract residue 10
After adding 0 g and kneading well, a square block having a diameter of 40 mm was manufactured by a pressure type block molding device, and then carbonized in a muffle furnace at 800 ° C. to give a beer meal charcoal block in the form of fuel charcoal 590 g. Got

[0027]

INDUSTRIAL APPLICABILITY According to the present invention, there is provided a material which can be widely used in industry, such as a soil improving material, using beer meal obtained as a by-product in the beer manufacturing process in a large amount as a raw material. Besides, not only the improvement of environmental problems when manufacturing this product,
It can exhibit excellent effects in industry.

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Claims (10)

[Claims] 1. A beer meal carbonized product obtained by drying and carbonizing beer meal. 2. The carbonized material of beer lees according to claim 1, wherein one or two of liquid fertilizer or fertilizer components such as urea, magnesium phosphate, ammonium phosphate, potassium phosphate, etc.
Beer lees charcoal with more than one seed added. 3. A beer lees charcoal pellet obtained by mixing the beer lees charcoal according to claim 1 or 2 with a binder and pelletizing. 4. A beer lees charcoal block obtained by mixing the beer lees charcoal according to claim 1 or 2 with a binder and block-forming the mixture. 5. A carbonized product of beer lees pellets obtained by mixing beer lees with a binder and pelletizing the beer lees pellets. 6. A carbonized beer lees block obtained by carbonizing a beer lees block obtained by mixing a beer lees with a binder and block-forming the mixture. 7. The carbide of pellets or blocks according to any one of claims 3 to 6, wherein the binder is excess sludge generated from a wastewater treatment facility. 8. The pellet or block charcoal according to any one of claims 3 to 6, wherein the binder is surplus yeast generated from a brewery or a dried product thereof. 9. The pelletized or block charcoal-based material according to claim 3, wherein the binder is enucleated yeast or yeast extract extraction residue. 10. The binder is urea, magnesium phosphate,
Carbide of the pellet or block according to claim 5 or 6, which is a fertilizer component such as ammonium phosphate and potassium phosphate.