JPH0322921A - Bark treated material - Google Patents

Abstract

PURPOSE:To obtain the treated material useful as a substitute for compost, peat-moss, 'Kanuma' soil, leaf mould, etc., and raw material for various kind of horticultures by treating a bark with urea and actinomyces (treated material). CONSTITUTION:0.3-4% urea and 1-10% actinomyces cultured by animal excrement and/or treated material thereof are added to a bark crushed material, crushed netting and as necessary the mixture is stirred to provide the aimed treated material.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a novel processed wood material, and more particularly to a processed wood material.

The processed bark material according to the present invention is a new substance and is not only useful as compost, but also as a variety of horticultural materials as a substitute for water moss, Kanuma soil, leaf mold, etc. Therefore, the present invention is applicable not only to the wood industry but also to the fertilizer industry.
Horticulture industry. It also plays an important role in technical fields such as pollution prevention industry.

(Conventional technology) In order to effectively utilize the large amounts of bark discharged from sawmills, composting is performed. For example, bark from cedar and cypress trees is piled up, and if necessary, auxiliary materials (livestock excrement, sludge, etc.) are added and fermented and aged to make compost. In addition, for example, in the case of Douglas fir, whose import volume has recently increased, quicklime is added to produce lignin.
Phenolic compounds are decomposed and composted. (Problems to be Solved by the Invention) In processing bark as described above, it generally takes a very long time to produce bark compost because the raw material is bark, which is extremely difficult to decompose. For example, in the case of the above-mentioned cedar and cypress, at least 2 to 3 years are required, and even if quicklime is used, 6 months to 2 years are required. Moreover, at present, the only effective use of bark is composting, and no other uses have been developed.

(Means for Solving the Problems) The present invention has been made to solve the above-mentioned drawbacks all at once. This was done for the purpose of developing a new path. In order to achieve the above objectives, we have investigated various aspects, focused on microbial treatment, conducted research on screening of useful bacteria and other treatments, and have completed the present invention. That is, the gist of the present invention is to treat bark with urea and actinomycetes to obtain a treated bark product. When carrying out the present invention, bark is used as the main raw material. In the present invention, bark broadly refers to bark, wood flour, wood chips, leaves, sawdust, and bamboo, and materials conventionally used as raw materials for bark compost can be used alone or in combination. These barks are treated in a manner similar to compost production, but the present invention particularly requires the use of urea and actinomycetes. Urea is added in an amount of 0.3 to 4%, preferably 1 to 2%, based on the bark.Urea may be added in solid form such as powder or granules, but it can be dissolved in water and dispersed. You can.
Urea may be added in its entirety at one time, or may be added in several parts.

The actinomycetes are present in an amount of 1 to 10%, preferably 3 to 10%, based on the bark.
Add 5% in one time or in several parts. As actinomycetes, thermophilic actinomycetes, mesophilic actinomycetes, and psychrotrophic actinomycetes can be used singly or in combination, and the following actinomycetes are exemplified: Streptomyces spp.
thermophilus ATCC 192g2 etc.)
, Nocardia erythrop
olis IFO 12682, etc.), Micromonospora purpurea
ATCC 15g35 etc.), Actinomyces genus (Act
inoo+yces grissoruber ATC
C 23626, etc.), Actinobifida (Actin
obifida dichotomica IFO1
2466, etc.), Thermoactinomyces (Thermo
actLnomyces glaucus IFO 1
2530, etc.), Thermomonospora (Thetvomo
nospora viridis IFO12207, etc.) Others. These actinomycetes include isolated bacterial bodies themselves, spores, and processed products thereof. The processed material includes bacteria (
spores), culture fluids, and concentrates and dilutions thereof. Furthermore, the actinomycetes may be acclimatized in advance using an auxiliary material such as chicken manure, bark, or the like. The approximate amount of actinomycetes to be added is as described above, but the larger the inoculation amount, the shorter the processing period, so there is no harm in using more than the above range. If necessary, the following auxiliary raw materials may be added to these raw materials: Livestock manure, poultry manure, poultry house waste, sludge, manure, household waste, agricultural product waste, fishery product waste, Livestock waste, chemical fertilizers, water, plant ash, manure, fibrous materials (rice straw, wheat straw, rice hulls, buckwheat, green grass, soybean meal, etc.), and others. By using these materials and processing them according to conventional compost production methods such as piling up, fermentation, mixing, turning, and ripening, the desired processed product can be prepared in just about two weeks. Therefore, first, these materials are deposited, but then the pH rises from 8 to 10 in just one night. Therefore, the absorption of phenol may be checked at 280 nm, for example, while stirring occasionally, and when the initial value is 173 or less, the treatment is stopped and the product is made.

The details of the rapid processing mechanism according to the present invention will have to be studied in the future, but it can be assumed as follows.
The action of urease produced by actinomycetes decomposes urea and generates ammonia, and the action of this ammonia and the action of alkali decomposes the compounds in the bark, especially phenolic compounds, and the components in the bark are quickly decomposed and processed. It is assumed that the The resulting treated material has greatly improved physical properties and has been deodorized from the odor peculiar to bark, making it extremely useful as compost. In addition, it is useful as a substitute for gardening materials such as humus, peat moss, Kanuma soil, and water moss, and is particularly suitable as a gardening material for use in pots and planters for Western orchids such as Phalaenopsis, Cymbidium, and Cattleya. Hereinafter, the present invention will be explained in more detail with reference to examples. Example 1 100 g of urea was added to 10 kg of cedar bark powder for 5 minutes.
A solution of Q dissolved in water was sprayed. On the other hand, Thermomonospora curvata IF0 1238
4 was inoculated into a liquid medium consisting of 50% chicken manure and 0.2% calcium carbonate, maintained at 45-52°C, cultured with shaking for 3 days, and cultured with chicken manure. Another 1 kg of this obtained culture was added to the above deposit to start the treatment. The next day, pi { went from 8 to 10. When these deposits were deposited to a thickness of 50 al, ammonia generation was observed. Therefore, the mixture was mixed and stirred once a day, and the phenol absorption was checked on 2,800 plates each time. Two weeks after the start of treatment, the phenol absorption returned to the initial level of 173, the bad odor disappeared, and the physical properties, appearance, and properties changed completely, and the desired treated product was obtained. Example 2 Pine bark powder 10 ICg, sludge 2 kg, urea 20
A solution of 0 g dissolved in 5 Q of water was thoroughly mixed and deposited. On the other hand, Streptomyces thermophilus^TCC
After 500 g of spores of 19282 were sprinkled on the sediment, water was sprinkled on it, and a sheet was covered to start the treatment. The next evening, ammonia was generated and the pH rose to 9. The soil was cut back once a day and treated in the same way as for compost production. The absorption of phenol was checked using 28 on, and after two weeks, the absorption of phenol decreased to the initial level of 173, so the fermentation was stopped and the desired treated product was obtained. When the resulting treated product was air-dried, it had no strange odor and the original bark shape had disappeared, transforming it into a completely different product, and it was confirmed that it could be made into a commercial product immediately if it was weighed and packaged. (Effects of the Invention) The present invention is capable of treating bark which has no particularly effective use other than compost and which takes a long time of 2 to 3 years to compost.
It was successful in that it could be treated in a very short period of time, about two weeks, and it was chaste in that it was able to quickly make bark, which was seen as a source of pollution due to the lack of an appropriate treatment method, become pollution-free. Furthermore, the processed bark material according to the present invention is not only useful as compost, but also very useful as a gardening material, and as a substitute for soil, water moss, Kanuma-gami, etc. used in pots and planters. The material is clean and free of germs, so it can be used in homes, offices, shops, restaurants, etc. In this way, the present invention has not only made it possible to make bark, which had previously been seen as a harmful industrial waste with no effective treatment and no use, pollution-free, but also to go further and proactively find ways to use it effectively. This is a newly developed product, and it is extremely effective.

Claims (1)

[Claims] 1. A treated bark product characterized by treating bark with urea, actinomycetes and/or a treated product thereof. 2. The treated product according to claim 1, wherein the treated bark product is bark compost. 3. The treated material according to claim 1, wherein the bark treated material is a horticultural material. 4. Add 0.3 to 4% of urea and 1 to 10% of actinomycetes acclimated with animal excrement and/or their processed material to the crushed bark material or crushed material, stirring if necessary. The bark processed product according to any one of claims 1 to 3, characterized in that: